[VOL-4638] Initial commit
Change-Id: I5e785d017e1d27783b24591b52f20f442895e602
diff --git a/vendor/go.uber.org/atomic/.codecov.yml b/vendor/go.uber.org/atomic/.codecov.yml
new file mode 100644
index 0000000..571116c
--- /dev/null
+++ b/vendor/go.uber.org/atomic/.codecov.yml
@@ -0,0 +1,19 @@
+coverage:
+ range: 80..100
+ round: down
+ precision: 2
+
+ status:
+ project: # measuring the overall project coverage
+ default: # context, you can create multiple ones with custom titles
+ enabled: yes # must be yes|true to enable this status
+ target: 100 # specify the target coverage for each commit status
+ # option: "auto" (must increase from parent commit or pull request base)
+ # option: "X%" a static target percentage to hit
+ if_not_found: success # if parent is not found report status as success, error, or failure
+ if_ci_failed: error # if ci fails report status as success, error, or failure
+
+# Also update COVER_IGNORE_PKGS in the Makefile.
+ignore:
+ - /internal/gen-atomicint/
+ - /internal/gen-valuewrapper/
diff --git a/vendor/go.uber.org/atomic/.gitignore b/vendor/go.uber.org/atomic/.gitignore
new file mode 100644
index 0000000..c3fa253
--- /dev/null
+++ b/vendor/go.uber.org/atomic/.gitignore
@@ -0,0 +1,12 @@
+/bin
+.DS_Store
+/vendor
+cover.html
+cover.out
+lint.log
+
+# Binaries
+*.test
+
+# Profiling output
+*.prof
diff --git a/vendor/go.uber.org/atomic/.travis.yml b/vendor/go.uber.org/atomic/.travis.yml
new file mode 100644
index 0000000..13d0a4f
--- /dev/null
+++ b/vendor/go.uber.org/atomic/.travis.yml
@@ -0,0 +1,27 @@
+sudo: false
+language: go
+go_import_path: go.uber.org/atomic
+
+env:
+ global:
+ - GO111MODULE=on
+
+matrix:
+ include:
+ - go: oldstable
+ - go: stable
+ env: LINT=1
+
+cache:
+ directories:
+ - vendor
+
+before_install:
+ - go version
+
+script:
+ - test -z "$LINT" || make lint
+ - make cover
+
+after_success:
+ - bash <(curl -s https://codecov.io/bash)
diff --git a/vendor/go.uber.org/atomic/CHANGELOG.md b/vendor/go.uber.org/atomic/CHANGELOG.md
new file mode 100644
index 0000000..24c0274
--- /dev/null
+++ b/vendor/go.uber.org/atomic/CHANGELOG.md
@@ -0,0 +1,76 @@
+# Changelog
+All notable changes to this project will be documented in this file.
+
+The format is based on [Keep a Changelog](https://keepachangelog.com/en/1.0.0/),
+and this project adheres to [Semantic Versioning](https://semver.org/spec/v2.0.0.html).
+
+## [1.7.0] - 2020-09-14
+### Added
+- Support JSON serialization and deserialization of primitive atomic types.
+- Support Text marshalling and unmarshalling for string atomics.
+
+### Changed
+- Disallow incorrect comparison of atomic values in a non-atomic way.
+
+### Removed
+- Remove dependency on `golang.org/x/{lint, tools}`.
+
+## [1.6.0] - 2020-02-24
+### Changed
+- Drop library dependency on `golang.org/x/{lint, tools}`.
+
+## [1.5.1] - 2019-11-19
+- Fix bug where `Bool.CAS` and `Bool.Toggle` do work correctly together
+ causing `CAS` to fail even though the old value matches.
+
+## [1.5.0] - 2019-10-29
+### Changed
+- With Go modules, only the `go.uber.org/atomic` import path is supported now.
+ If you need to use the old import path, please add a `replace` directive to
+ your `go.mod`.
+
+## [1.4.0] - 2019-05-01
+### Added
+ - Add `atomic.Error` type for atomic operations on `error` values.
+
+## [1.3.2] - 2018-05-02
+### Added
+- Add `atomic.Duration` type for atomic operations on `time.Duration` values.
+
+## [1.3.1] - 2017-11-14
+### Fixed
+- Revert optimization for `atomic.String.Store("")` which caused data races.
+
+## [1.3.0] - 2017-11-13
+### Added
+- Add `atomic.Bool.CAS` for compare-and-swap semantics on bools.
+
+### Changed
+- Optimize `atomic.String.Store("")` by avoiding an allocation.
+
+## [1.2.0] - 2017-04-12
+### Added
+- Shadow `atomic.Value` from `sync/atomic`.
+
+## [1.1.0] - 2017-03-10
+### Added
+- Add atomic `Float64` type.
+
+### Changed
+- Support new `go.uber.org/atomic` import path.
+
+## [1.0.0] - 2016-07-18
+
+- Initial release.
+
+[1.7.0]: https://github.com/uber-go/atomic/compare/v1.6.0...v1.7.0
+[1.6.0]: https://github.com/uber-go/atomic/compare/v1.5.1...v1.6.0
+[1.5.1]: https://github.com/uber-go/atomic/compare/v1.5.0...v1.5.1
+[1.5.0]: https://github.com/uber-go/atomic/compare/v1.4.0...v1.5.0
+[1.4.0]: https://github.com/uber-go/atomic/compare/v1.3.2...v1.4.0
+[1.3.2]: https://github.com/uber-go/atomic/compare/v1.3.1...v1.3.2
+[1.3.1]: https://github.com/uber-go/atomic/compare/v1.3.0...v1.3.1
+[1.3.0]: https://github.com/uber-go/atomic/compare/v1.2.0...v1.3.0
+[1.2.0]: https://github.com/uber-go/atomic/compare/v1.1.0...v1.2.0
+[1.1.0]: https://github.com/uber-go/atomic/compare/v1.0.0...v1.1.0
+[1.0.0]: https://github.com/uber-go/atomic/releases/tag/v1.0.0
diff --git a/vendor/go.uber.org/atomic/LICENSE.txt b/vendor/go.uber.org/atomic/LICENSE.txt
new file mode 100644
index 0000000..8765c9f
--- /dev/null
+++ b/vendor/go.uber.org/atomic/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (c) 2016 Uber Technologies, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/go.uber.org/atomic/Makefile b/vendor/go.uber.org/atomic/Makefile
new file mode 100644
index 0000000..1b1376d
--- /dev/null
+++ b/vendor/go.uber.org/atomic/Makefile
@@ -0,0 +1,78 @@
+# Directory to place `go install`ed binaries into.
+export GOBIN ?= $(shell pwd)/bin
+
+GOLINT = $(GOBIN)/golint
+GEN_ATOMICINT = $(GOBIN)/gen-atomicint
+GEN_ATOMICWRAPPER = $(GOBIN)/gen-atomicwrapper
+STATICCHECK = $(GOBIN)/staticcheck
+
+GO_FILES ?= $(shell find . '(' -path .git -o -path vendor ')' -prune -o -name '*.go' -print)
+
+# Also update ignore section in .codecov.yml.
+COVER_IGNORE_PKGS = \
+ go.uber.org/atomic/internal/gen-atomicint \
+ go.uber.org/atomic/internal/gen-atomicwrapper
+
+.PHONY: build
+build:
+ go build ./...
+
+.PHONY: test
+test:
+ go test -race ./...
+
+.PHONY: gofmt
+gofmt:
+ $(eval FMT_LOG := $(shell mktemp -t gofmt.XXXXX))
+ gofmt -e -s -l $(GO_FILES) > $(FMT_LOG) || true
+ @[ ! -s "$(FMT_LOG)" ] || (echo "gofmt failed:" && cat $(FMT_LOG) && false)
+
+$(GOLINT):
+ cd tools && go install golang.org/x/lint/golint
+
+$(STATICCHECK):
+ cd tools && go install honnef.co/go/tools/cmd/staticcheck
+
+$(GEN_ATOMICWRAPPER): $(wildcard ./internal/gen-atomicwrapper/*)
+ go build -o $@ ./internal/gen-atomicwrapper
+
+$(GEN_ATOMICINT): $(wildcard ./internal/gen-atomicint/*)
+ go build -o $@ ./internal/gen-atomicint
+
+.PHONY: golint
+golint: $(GOLINT)
+ $(GOLINT) ./...
+
+.PHONY: staticcheck
+staticcheck: $(STATICCHECK)
+ $(STATICCHECK) ./...
+
+.PHONY: lint
+lint: gofmt golint staticcheck generatenodirty
+
+# comma separated list of packages to consider for code coverage.
+COVER_PKG = $(shell \
+ go list -find ./... | \
+ grep -v $(foreach pkg,$(COVER_IGNORE_PKGS),-e "^$(pkg)$$") | \
+ paste -sd, -)
+
+.PHONY: cover
+cover:
+ go test -coverprofile=cover.out -coverpkg $(COVER_PKG) -v ./...
+ go tool cover -html=cover.out -o cover.html
+
+.PHONY: generate
+generate: $(GEN_ATOMICINT) $(GEN_ATOMICWRAPPER)
+ go generate ./...
+
+.PHONY: generatenodirty
+generatenodirty:
+ @[ -z "$$(git status --porcelain)" ] || ( \
+ echo "Working tree is dirty. Commit your changes first."; \
+ exit 1 )
+ @make generate
+ @status=$$(git status --porcelain); \
+ [ -z "$$status" ] || ( \
+ echo "Working tree is dirty after `make generate`:"; \
+ echo "$$status"; \
+ echo "Please ensure that the generated code is up-to-date." )
diff --git a/vendor/go.uber.org/atomic/README.md b/vendor/go.uber.org/atomic/README.md
new file mode 100644
index 0000000..ade0c20
--- /dev/null
+++ b/vendor/go.uber.org/atomic/README.md
@@ -0,0 +1,63 @@
+# atomic [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov] [![Go Report Card][reportcard-img]][reportcard]
+
+Simple wrappers for primitive types to enforce atomic access.
+
+## Installation
+
+```shell
+$ go get -u go.uber.org/atomic@v1
+```
+
+### Legacy Import Path
+
+As of v1.5.0, the import path `go.uber.org/atomic` is the only supported way
+of using this package. If you are using Go modules, this package will fail to
+compile with the legacy import path path `github.com/uber-go/atomic`.
+
+We recommend migrating your code to the new import path but if you're unable
+to do so, or if your dependencies are still using the old import path, you
+will have to add a `replace` directive to your `go.mod` file downgrading the
+legacy import path to an older version.
+
+```
+replace github.com/uber-go/atomic => github.com/uber-go/atomic v1.4.0
+```
+
+You can do so automatically by running the following command.
+
+```shell
+$ go mod edit -replace github.com/uber-go/atomic=github.com/uber-go/atomic@v1.4.0
+```
+
+## Usage
+
+The standard library's `sync/atomic` is powerful, but it's easy to forget which
+variables must be accessed atomically. `go.uber.org/atomic` preserves all the
+functionality of the standard library, but wraps the primitive types to
+provide a safer, more convenient API.
+
+```go
+var atom atomic.Uint32
+atom.Store(42)
+atom.Sub(2)
+atom.CAS(40, 11)
+```
+
+See the [documentation][doc] for a complete API specification.
+
+## Development Status
+
+Stable.
+
+---
+
+Released under the [MIT License](LICENSE.txt).
+
+[doc-img]: https://godoc.org/github.com/uber-go/atomic?status.svg
+[doc]: https://godoc.org/go.uber.org/atomic
+[ci-img]: https://travis-ci.com/uber-go/atomic.svg?branch=master
+[ci]: https://travis-ci.com/uber-go/atomic
+[cov-img]: https://codecov.io/gh/uber-go/atomic/branch/master/graph/badge.svg
+[cov]: https://codecov.io/gh/uber-go/atomic
+[reportcard-img]: https://goreportcard.com/badge/go.uber.org/atomic
+[reportcard]: https://goreportcard.com/report/go.uber.org/atomic
diff --git a/vendor/go.uber.org/atomic/bool.go b/vendor/go.uber.org/atomic/bool.go
new file mode 100644
index 0000000..9cf1914
--- /dev/null
+++ b/vendor/go.uber.org/atomic/bool.go
@@ -0,0 +1,81 @@
+// @generated Code generated by gen-atomicwrapper.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+)
+
+// Bool is an atomic type-safe wrapper for bool values.
+type Bool struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v Uint32
+}
+
+var _zeroBool bool
+
+// NewBool creates a new Bool.
+func NewBool(v bool) *Bool {
+ x := &Bool{}
+ if v != _zeroBool {
+ x.Store(v)
+ }
+ return x
+}
+
+// Load atomically loads the wrapped bool.
+func (x *Bool) Load() bool {
+ return truthy(x.v.Load())
+}
+
+// Store atomically stores the passed bool.
+func (x *Bool) Store(v bool) {
+ x.v.Store(boolToInt(v))
+}
+
+// CAS is an atomic compare-and-swap for bool values.
+func (x *Bool) CAS(o, n bool) bool {
+ return x.v.CAS(boolToInt(o), boolToInt(n))
+}
+
+// Swap atomically stores the given bool and returns the old
+// value.
+func (x *Bool) Swap(o bool) bool {
+ return truthy(x.v.Swap(boolToInt(o)))
+}
+
+// MarshalJSON encodes the wrapped bool into JSON.
+func (x *Bool) MarshalJSON() ([]byte, error) {
+ return json.Marshal(x.Load())
+}
+
+// UnmarshalJSON decodes a bool from JSON.
+func (x *Bool) UnmarshalJSON(b []byte) error {
+ var v bool
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ x.Store(v)
+ return nil
+}
diff --git a/vendor/go.uber.org/atomic/bool_ext.go b/vendor/go.uber.org/atomic/bool_ext.go
new file mode 100644
index 0000000..c7bf7a8
--- /dev/null
+++ b/vendor/go.uber.org/atomic/bool_ext.go
@@ -0,0 +1,53 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "strconv"
+)
+
+//go:generate bin/gen-atomicwrapper -name=Bool -type=bool -wrapped=Uint32 -pack=boolToInt -unpack=truthy -cas -swap -json -file=bool.go
+
+func truthy(n uint32) bool {
+ return n == 1
+}
+
+func boolToInt(b bool) uint32 {
+ if b {
+ return 1
+ }
+ return 0
+}
+
+// Toggle atomically negates the Boolean and returns the previous value.
+func (b *Bool) Toggle() bool {
+ for {
+ old := b.Load()
+ if b.CAS(old, !old) {
+ return old
+ }
+ }
+}
+
+// String encodes the wrapped value as a string.
+func (b *Bool) String() string {
+ return strconv.FormatBool(b.Load())
+}
diff --git a/vendor/go.uber.org/atomic/doc.go b/vendor/go.uber.org/atomic/doc.go
new file mode 100644
index 0000000..ae7390e
--- /dev/null
+++ b/vendor/go.uber.org/atomic/doc.go
@@ -0,0 +1,23 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package atomic provides simple wrappers around numerics to enforce atomic
+// access.
+package atomic
diff --git a/vendor/go.uber.org/atomic/duration.go b/vendor/go.uber.org/atomic/duration.go
new file mode 100644
index 0000000..027cfcb
--- /dev/null
+++ b/vendor/go.uber.org/atomic/duration.go
@@ -0,0 +1,82 @@
+// @generated Code generated by gen-atomicwrapper.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "time"
+)
+
+// Duration is an atomic type-safe wrapper for time.Duration values.
+type Duration struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v Int64
+}
+
+var _zeroDuration time.Duration
+
+// NewDuration creates a new Duration.
+func NewDuration(v time.Duration) *Duration {
+ x := &Duration{}
+ if v != _zeroDuration {
+ x.Store(v)
+ }
+ return x
+}
+
+// Load atomically loads the wrapped time.Duration.
+func (x *Duration) Load() time.Duration {
+ return time.Duration(x.v.Load())
+}
+
+// Store atomically stores the passed time.Duration.
+func (x *Duration) Store(v time.Duration) {
+ x.v.Store(int64(v))
+}
+
+// CAS is an atomic compare-and-swap for time.Duration values.
+func (x *Duration) CAS(o, n time.Duration) bool {
+ return x.v.CAS(int64(o), int64(n))
+}
+
+// Swap atomically stores the given time.Duration and returns the old
+// value.
+func (x *Duration) Swap(o time.Duration) time.Duration {
+ return time.Duration(x.v.Swap(int64(o)))
+}
+
+// MarshalJSON encodes the wrapped time.Duration into JSON.
+func (x *Duration) MarshalJSON() ([]byte, error) {
+ return json.Marshal(x.Load())
+}
+
+// UnmarshalJSON decodes a time.Duration from JSON.
+func (x *Duration) UnmarshalJSON(b []byte) error {
+ var v time.Duration
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ x.Store(v)
+ return nil
+}
diff --git a/vendor/go.uber.org/atomic/duration_ext.go b/vendor/go.uber.org/atomic/duration_ext.go
new file mode 100644
index 0000000..6273b66
--- /dev/null
+++ b/vendor/go.uber.org/atomic/duration_ext.go
@@ -0,0 +1,40 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import "time"
+
+//go:generate bin/gen-atomicwrapper -name=Duration -type=time.Duration -wrapped=Int64 -pack=int64 -unpack=time.Duration -cas -swap -json -imports time -file=duration.go
+
+// Add atomically adds to the wrapped time.Duration and returns the new value.
+func (d *Duration) Add(n time.Duration) time.Duration {
+ return time.Duration(d.v.Add(int64(n)))
+}
+
+// Sub atomically subtracts from the wrapped time.Duration and returns the new value.
+func (d *Duration) Sub(n time.Duration) time.Duration {
+ return time.Duration(d.v.Sub(int64(n)))
+}
+
+// String encodes the wrapped value as a string.
+func (d *Duration) String() string {
+ return d.Load().String()
+}
diff --git a/vendor/go.uber.org/atomic/error.go b/vendor/go.uber.org/atomic/error.go
new file mode 100644
index 0000000..a6166fb
--- /dev/null
+++ b/vendor/go.uber.org/atomic/error.go
@@ -0,0 +1,51 @@
+// @generated Code generated by gen-atomicwrapper.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+// Error is an atomic type-safe wrapper for error values.
+type Error struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v Value
+}
+
+var _zeroError error
+
+// NewError creates a new Error.
+func NewError(v error) *Error {
+ x := &Error{}
+ if v != _zeroError {
+ x.Store(v)
+ }
+ return x
+}
+
+// Load atomically loads the wrapped error.
+func (x *Error) Load() error {
+ return unpackError(x.v.Load())
+}
+
+// Store atomically stores the passed error.
+func (x *Error) Store(v error) {
+ x.v.Store(packError(v))
+}
diff --git a/vendor/go.uber.org/atomic/error_ext.go b/vendor/go.uber.org/atomic/error_ext.go
new file mode 100644
index 0000000..ffe0be2
--- /dev/null
+++ b/vendor/go.uber.org/atomic/error_ext.go
@@ -0,0 +1,39 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+// atomic.Value panics on nil inputs, or if the underlying type changes.
+// Stabilize by always storing a custom struct that we control.
+
+//go:generate bin/gen-atomicwrapper -name=Error -type=error -wrapped=Value -pack=packError -unpack=unpackError -file=error.go
+
+type packedError struct{ Value error }
+
+func packError(v error) interface{} {
+ return packedError{v}
+}
+
+func unpackError(v interface{}) error {
+ if err, ok := v.(packedError); ok {
+ return err.Value
+ }
+ return nil
+}
diff --git a/vendor/go.uber.org/atomic/float64.go b/vendor/go.uber.org/atomic/float64.go
new file mode 100644
index 0000000..0719060
--- /dev/null
+++ b/vendor/go.uber.org/atomic/float64.go
@@ -0,0 +1,76 @@
+// @generated Code generated by gen-atomicwrapper.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "math"
+)
+
+// Float64 is an atomic type-safe wrapper for float64 values.
+type Float64 struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v Uint64
+}
+
+var _zeroFloat64 float64
+
+// NewFloat64 creates a new Float64.
+func NewFloat64(v float64) *Float64 {
+ x := &Float64{}
+ if v != _zeroFloat64 {
+ x.Store(v)
+ }
+ return x
+}
+
+// Load atomically loads the wrapped float64.
+func (x *Float64) Load() float64 {
+ return math.Float64frombits(x.v.Load())
+}
+
+// Store atomically stores the passed float64.
+func (x *Float64) Store(v float64) {
+ x.v.Store(math.Float64bits(v))
+}
+
+// CAS is an atomic compare-and-swap for float64 values.
+func (x *Float64) CAS(o, n float64) bool {
+ return x.v.CAS(math.Float64bits(o), math.Float64bits(n))
+}
+
+// MarshalJSON encodes the wrapped float64 into JSON.
+func (x *Float64) MarshalJSON() ([]byte, error) {
+ return json.Marshal(x.Load())
+}
+
+// UnmarshalJSON decodes a float64 from JSON.
+func (x *Float64) UnmarshalJSON(b []byte) error {
+ var v float64
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ x.Store(v)
+ return nil
+}
diff --git a/vendor/go.uber.org/atomic/float64_ext.go b/vendor/go.uber.org/atomic/float64_ext.go
new file mode 100644
index 0000000..927b1ad
--- /dev/null
+++ b/vendor/go.uber.org/atomic/float64_ext.go
@@ -0,0 +1,47 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import "strconv"
+
+//go:generate bin/gen-atomicwrapper -name=Float64 -type=float64 -wrapped=Uint64 -pack=math.Float64bits -unpack=math.Float64frombits -cas -json -imports math -file=float64.go
+
+// Add atomically adds to the wrapped float64 and returns the new value.
+func (f *Float64) Add(s float64) float64 {
+ for {
+ old := f.Load()
+ new := old + s
+ if f.CAS(old, new) {
+ return new
+ }
+ }
+}
+
+// Sub atomically subtracts from the wrapped float64 and returns the new value.
+func (f *Float64) Sub(s float64) float64 {
+ return f.Add(-s)
+}
+
+// String encodes the wrapped value as a string.
+func (f *Float64) String() string {
+ // 'g' is the behavior for floats with %v.
+ return strconv.FormatFloat(f.Load(), 'g', -1, 64)
+}
diff --git a/vendor/go.uber.org/atomic/gen.go b/vendor/go.uber.org/atomic/gen.go
new file mode 100644
index 0000000..50d6b24
--- /dev/null
+++ b/vendor/go.uber.org/atomic/gen.go
@@ -0,0 +1,26 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+//go:generate bin/gen-atomicint -name=Int32 -wrapped=int32 -file=int32.go
+//go:generate bin/gen-atomicint -name=Int64 -wrapped=int64 -file=int64.go
+//go:generate bin/gen-atomicint -name=Uint32 -wrapped=uint32 -unsigned -file=uint32.go
+//go:generate bin/gen-atomicint -name=Uint64 -wrapped=uint64 -unsigned -file=uint64.go
diff --git a/vendor/go.uber.org/atomic/go.mod b/vendor/go.uber.org/atomic/go.mod
new file mode 100644
index 0000000..daa7599
--- /dev/null
+++ b/vendor/go.uber.org/atomic/go.mod
@@ -0,0 +1,8 @@
+module go.uber.org/atomic
+
+require (
+ github.com/davecgh/go-spew v1.1.1 // indirect
+ github.com/stretchr/testify v1.3.0
+)
+
+go 1.13
diff --git a/vendor/go.uber.org/atomic/go.sum b/vendor/go.uber.org/atomic/go.sum
new file mode 100644
index 0000000..4f76e62
--- /dev/null
+++ b/vendor/go.uber.org/atomic/go.sum
@@ -0,0 +1,9 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
diff --git a/vendor/go.uber.org/atomic/int32.go b/vendor/go.uber.org/atomic/int32.go
new file mode 100644
index 0000000..18ae564
--- /dev/null
+++ b/vendor/go.uber.org/atomic/int32.go
@@ -0,0 +1,102 @@
+// @generated Code generated by gen-atomicint.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "strconv"
+ "sync/atomic"
+)
+
+// Int32 is an atomic wrapper around int32.
+type Int32 struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v int32
+}
+
+// NewInt32 creates a new Int32.
+func NewInt32(i int32) *Int32 {
+ return &Int32{v: i}
+}
+
+// Load atomically loads the wrapped value.
+func (i *Int32) Load() int32 {
+ return atomic.LoadInt32(&i.v)
+}
+
+// Add atomically adds to the wrapped int32 and returns the new value.
+func (i *Int32) Add(n int32) int32 {
+ return atomic.AddInt32(&i.v, n)
+}
+
+// Sub atomically subtracts from the wrapped int32 and returns the new value.
+func (i *Int32) Sub(n int32) int32 {
+ return atomic.AddInt32(&i.v, -n)
+}
+
+// Inc atomically increments the wrapped int32 and returns the new value.
+func (i *Int32) Inc() int32 {
+ return i.Add(1)
+}
+
+// Dec atomically decrements the wrapped int32 and returns the new value.
+func (i *Int32) Dec() int32 {
+ return i.Sub(1)
+}
+
+// CAS is an atomic compare-and-swap.
+func (i *Int32) CAS(old, new int32) bool {
+ return atomic.CompareAndSwapInt32(&i.v, old, new)
+}
+
+// Store atomically stores the passed value.
+func (i *Int32) Store(n int32) {
+ atomic.StoreInt32(&i.v, n)
+}
+
+// Swap atomically swaps the wrapped int32 and returns the old value.
+func (i *Int32) Swap(n int32) int32 {
+ return atomic.SwapInt32(&i.v, n)
+}
+
+// MarshalJSON encodes the wrapped int32 into JSON.
+func (i *Int32) MarshalJSON() ([]byte, error) {
+ return json.Marshal(i.Load())
+}
+
+// UnmarshalJSON decodes JSON into the wrapped int32.
+func (i *Int32) UnmarshalJSON(b []byte) error {
+ var v int32
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ i.Store(v)
+ return nil
+}
+
+// String encodes the wrapped value as a string.
+func (i *Int32) String() string {
+ v := i.Load()
+ return strconv.FormatInt(int64(v), 10)
+}
diff --git a/vendor/go.uber.org/atomic/int64.go b/vendor/go.uber.org/atomic/int64.go
new file mode 100644
index 0000000..2bcbbfa
--- /dev/null
+++ b/vendor/go.uber.org/atomic/int64.go
@@ -0,0 +1,102 @@
+// @generated Code generated by gen-atomicint.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "strconv"
+ "sync/atomic"
+)
+
+// Int64 is an atomic wrapper around int64.
+type Int64 struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v int64
+}
+
+// NewInt64 creates a new Int64.
+func NewInt64(i int64) *Int64 {
+ return &Int64{v: i}
+}
+
+// Load atomically loads the wrapped value.
+func (i *Int64) Load() int64 {
+ return atomic.LoadInt64(&i.v)
+}
+
+// Add atomically adds to the wrapped int64 and returns the new value.
+func (i *Int64) Add(n int64) int64 {
+ return atomic.AddInt64(&i.v, n)
+}
+
+// Sub atomically subtracts from the wrapped int64 and returns the new value.
+func (i *Int64) Sub(n int64) int64 {
+ return atomic.AddInt64(&i.v, -n)
+}
+
+// Inc atomically increments the wrapped int64 and returns the new value.
+func (i *Int64) Inc() int64 {
+ return i.Add(1)
+}
+
+// Dec atomically decrements the wrapped int64 and returns the new value.
+func (i *Int64) Dec() int64 {
+ return i.Sub(1)
+}
+
+// CAS is an atomic compare-and-swap.
+func (i *Int64) CAS(old, new int64) bool {
+ return atomic.CompareAndSwapInt64(&i.v, old, new)
+}
+
+// Store atomically stores the passed value.
+func (i *Int64) Store(n int64) {
+ atomic.StoreInt64(&i.v, n)
+}
+
+// Swap atomically swaps the wrapped int64 and returns the old value.
+func (i *Int64) Swap(n int64) int64 {
+ return atomic.SwapInt64(&i.v, n)
+}
+
+// MarshalJSON encodes the wrapped int64 into JSON.
+func (i *Int64) MarshalJSON() ([]byte, error) {
+ return json.Marshal(i.Load())
+}
+
+// UnmarshalJSON decodes JSON into the wrapped int64.
+func (i *Int64) UnmarshalJSON(b []byte) error {
+ var v int64
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ i.Store(v)
+ return nil
+}
+
+// String encodes the wrapped value as a string.
+func (i *Int64) String() string {
+ v := i.Load()
+ return strconv.FormatInt(int64(v), 10)
+}
diff --git a/vendor/go.uber.org/atomic/nocmp.go b/vendor/go.uber.org/atomic/nocmp.go
new file mode 100644
index 0000000..a8201cb
--- /dev/null
+++ b/vendor/go.uber.org/atomic/nocmp.go
@@ -0,0 +1,35 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+// nocmp is an uncomparable struct. Embed this inside another struct to make
+// it uncomparable.
+//
+// type Foo struct {
+// nocmp
+// // ...
+// }
+//
+// This DOES NOT:
+//
+// - Disallow shallow copies of structs
+// - Disallow comparison of pointers to uncomparable structs
+type nocmp [0]func()
diff --git a/vendor/go.uber.org/atomic/string.go b/vendor/go.uber.org/atomic/string.go
new file mode 100644
index 0000000..225b7a2
--- /dev/null
+++ b/vendor/go.uber.org/atomic/string.go
@@ -0,0 +1,54 @@
+// @generated Code generated by gen-atomicwrapper.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+// String is an atomic type-safe wrapper for string values.
+type String struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v Value
+}
+
+var _zeroString string
+
+// NewString creates a new String.
+func NewString(v string) *String {
+ x := &String{}
+ if v != _zeroString {
+ x.Store(v)
+ }
+ return x
+}
+
+// Load atomically loads the wrapped string.
+func (x *String) Load() string {
+ if v := x.v.Load(); v != nil {
+ return v.(string)
+ }
+ return _zeroString
+}
+
+// Store atomically stores the passed string.
+func (x *String) Store(v string) {
+ x.v.Store(v)
+}
diff --git a/vendor/go.uber.org/atomic/string_ext.go b/vendor/go.uber.org/atomic/string_ext.go
new file mode 100644
index 0000000..3a95582
--- /dev/null
+++ b/vendor/go.uber.org/atomic/string_ext.go
@@ -0,0 +1,43 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+//go:generate bin/gen-atomicwrapper -name=String -type=string -wrapped=Value -file=string.go
+
+// String returns the wrapped value.
+func (s *String) String() string {
+ return s.Load()
+}
+
+// MarshalText encodes the wrapped string into a textual form.
+//
+// This makes it encodable as JSON, YAML, XML, and more.
+func (s *String) MarshalText() ([]byte, error) {
+ return []byte(s.Load()), nil
+}
+
+// UnmarshalText decodes text and replaces the wrapped string with it.
+//
+// This makes it decodable from JSON, YAML, XML, and more.
+func (s *String) UnmarshalText(b []byte) error {
+ s.Store(string(b))
+ return nil
+}
diff --git a/vendor/go.uber.org/atomic/uint32.go b/vendor/go.uber.org/atomic/uint32.go
new file mode 100644
index 0000000..a973aba
--- /dev/null
+++ b/vendor/go.uber.org/atomic/uint32.go
@@ -0,0 +1,102 @@
+// @generated Code generated by gen-atomicint.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "strconv"
+ "sync/atomic"
+)
+
+// Uint32 is an atomic wrapper around uint32.
+type Uint32 struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v uint32
+}
+
+// NewUint32 creates a new Uint32.
+func NewUint32(i uint32) *Uint32 {
+ return &Uint32{v: i}
+}
+
+// Load atomically loads the wrapped value.
+func (i *Uint32) Load() uint32 {
+ return atomic.LoadUint32(&i.v)
+}
+
+// Add atomically adds to the wrapped uint32 and returns the new value.
+func (i *Uint32) Add(n uint32) uint32 {
+ return atomic.AddUint32(&i.v, n)
+}
+
+// Sub atomically subtracts from the wrapped uint32 and returns the new value.
+func (i *Uint32) Sub(n uint32) uint32 {
+ return atomic.AddUint32(&i.v, ^(n - 1))
+}
+
+// Inc atomically increments the wrapped uint32 and returns the new value.
+func (i *Uint32) Inc() uint32 {
+ return i.Add(1)
+}
+
+// Dec atomically decrements the wrapped uint32 and returns the new value.
+func (i *Uint32) Dec() uint32 {
+ return i.Sub(1)
+}
+
+// CAS is an atomic compare-and-swap.
+func (i *Uint32) CAS(old, new uint32) bool {
+ return atomic.CompareAndSwapUint32(&i.v, old, new)
+}
+
+// Store atomically stores the passed value.
+func (i *Uint32) Store(n uint32) {
+ atomic.StoreUint32(&i.v, n)
+}
+
+// Swap atomically swaps the wrapped uint32 and returns the old value.
+func (i *Uint32) Swap(n uint32) uint32 {
+ return atomic.SwapUint32(&i.v, n)
+}
+
+// MarshalJSON encodes the wrapped uint32 into JSON.
+func (i *Uint32) MarshalJSON() ([]byte, error) {
+ return json.Marshal(i.Load())
+}
+
+// UnmarshalJSON decodes JSON into the wrapped uint32.
+func (i *Uint32) UnmarshalJSON(b []byte) error {
+ var v uint32
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ i.Store(v)
+ return nil
+}
+
+// String encodes the wrapped value as a string.
+func (i *Uint32) String() string {
+ v := i.Load()
+ return strconv.FormatUint(uint64(v), 10)
+}
diff --git a/vendor/go.uber.org/atomic/uint64.go b/vendor/go.uber.org/atomic/uint64.go
new file mode 100644
index 0000000..3b6c71f
--- /dev/null
+++ b/vendor/go.uber.org/atomic/uint64.go
@@ -0,0 +1,102 @@
+// @generated Code generated by gen-atomicint.
+
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import (
+ "encoding/json"
+ "strconv"
+ "sync/atomic"
+)
+
+// Uint64 is an atomic wrapper around uint64.
+type Uint64 struct {
+ _ nocmp // disallow non-atomic comparison
+
+ v uint64
+}
+
+// NewUint64 creates a new Uint64.
+func NewUint64(i uint64) *Uint64 {
+ return &Uint64{v: i}
+}
+
+// Load atomically loads the wrapped value.
+func (i *Uint64) Load() uint64 {
+ return atomic.LoadUint64(&i.v)
+}
+
+// Add atomically adds to the wrapped uint64 and returns the new value.
+func (i *Uint64) Add(n uint64) uint64 {
+ return atomic.AddUint64(&i.v, n)
+}
+
+// Sub atomically subtracts from the wrapped uint64 and returns the new value.
+func (i *Uint64) Sub(n uint64) uint64 {
+ return atomic.AddUint64(&i.v, ^(n - 1))
+}
+
+// Inc atomically increments the wrapped uint64 and returns the new value.
+func (i *Uint64) Inc() uint64 {
+ return i.Add(1)
+}
+
+// Dec atomically decrements the wrapped uint64 and returns the new value.
+func (i *Uint64) Dec() uint64 {
+ return i.Sub(1)
+}
+
+// CAS is an atomic compare-and-swap.
+func (i *Uint64) CAS(old, new uint64) bool {
+ return atomic.CompareAndSwapUint64(&i.v, old, new)
+}
+
+// Store atomically stores the passed value.
+func (i *Uint64) Store(n uint64) {
+ atomic.StoreUint64(&i.v, n)
+}
+
+// Swap atomically swaps the wrapped uint64 and returns the old value.
+func (i *Uint64) Swap(n uint64) uint64 {
+ return atomic.SwapUint64(&i.v, n)
+}
+
+// MarshalJSON encodes the wrapped uint64 into JSON.
+func (i *Uint64) MarshalJSON() ([]byte, error) {
+ return json.Marshal(i.Load())
+}
+
+// UnmarshalJSON decodes JSON into the wrapped uint64.
+func (i *Uint64) UnmarshalJSON(b []byte) error {
+ var v uint64
+ if err := json.Unmarshal(b, &v); err != nil {
+ return err
+ }
+ i.Store(v)
+ return nil
+}
+
+// String encodes the wrapped value as a string.
+func (i *Uint64) String() string {
+ v := i.Load()
+ return strconv.FormatUint(uint64(v), 10)
+}
diff --git a/vendor/go.uber.org/atomic/value.go b/vendor/go.uber.org/atomic/value.go
new file mode 100644
index 0000000..671f3a3
--- /dev/null
+++ b/vendor/go.uber.org/atomic/value.go
@@ -0,0 +1,31 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package atomic
+
+import "sync/atomic"
+
+// Value shadows the type of the same name from sync/atomic
+// https://godoc.org/sync/atomic#Value
+type Value struct {
+ atomic.Value
+
+ _ nocmp // disallow non-atomic comparison
+}
diff --git a/vendor/go.uber.org/multierr/.codecov.yml b/vendor/go.uber.org/multierr/.codecov.yml
new file mode 100644
index 0000000..6d4d1be
--- /dev/null
+++ b/vendor/go.uber.org/multierr/.codecov.yml
@@ -0,0 +1,15 @@
+coverage:
+ range: 80..100
+ round: down
+ precision: 2
+
+ status:
+ project: # measuring the overall project coverage
+ default: # context, you can create multiple ones with custom titles
+ enabled: yes # must be yes|true to enable this status
+ target: 100 # specify the target coverage for each commit status
+ # option: "auto" (must increase from parent commit or pull request base)
+ # option: "X%" a static target percentage to hit
+ if_not_found: success # if parent is not found report status as success, error, or failure
+ if_ci_failed: error # if ci fails report status as success, error, or failure
+
diff --git a/vendor/go.uber.org/multierr/.gitignore b/vendor/go.uber.org/multierr/.gitignore
new file mode 100644
index 0000000..b9a05e3
--- /dev/null
+++ b/vendor/go.uber.org/multierr/.gitignore
@@ -0,0 +1,4 @@
+/vendor
+cover.html
+cover.out
+/bin
diff --git a/vendor/go.uber.org/multierr/.travis.yml b/vendor/go.uber.org/multierr/.travis.yml
new file mode 100644
index 0000000..8636ab4
--- /dev/null
+++ b/vendor/go.uber.org/multierr/.travis.yml
@@ -0,0 +1,23 @@
+sudo: false
+language: go
+go_import_path: go.uber.org/multierr
+
+env:
+ global:
+ - GO111MODULE=on
+
+go:
+ - oldstable
+ - stable
+
+before_install:
+- go version
+
+script:
+- |
+ set -e
+ make lint
+ make cover
+
+after_success:
+- bash <(curl -s https://codecov.io/bash)
diff --git a/vendor/go.uber.org/multierr/CHANGELOG.md b/vendor/go.uber.org/multierr/CHANGELOG.md
new file mode 100644
index 0000000..6f1db9e
--- /dev/null
+++ b/vendor/go.uber.org/multierr/CHANGELOG.md
@@ -0,0 +1,60 @@
+Releases
+========
+
+v1.6.0 (2020-09-14)
+===================
+
+- Actually drop library dependency on development-time tooling.
+
+
+v1.5.0 (2020-02-24)
+===================
+
+- Drop library dependency on development-time tooling.
+
+
+v1.4.0 (2019-11-04)
+===================
+
+- Add `AppendInto` function to more ergonomically build errors inside a
+ loop.
+
+
+v1.3.0 (2019-10-29)
+===================
+
+- Switch to Go modules.
+
+
+v1.2.0 (2019-09-26)
+===================
+
+- Support extracting and matching against wrapped errors with `errors.As`
+ and `errors.Is`.
+
+
+v1.1.0 (2017-06-30)
+===================
+
+- Added an `Errors(error) []error` function to extract the underlying list of
+ errors for a multierr error.
+
+
+v1.0.0 (2017-05-31)
+===================
+
+No changes since v0.2.0. This release is committing to making no breaking
+changes to the current API in the 1.X series.
+
+
+v0.2.0 (2017-04-11)
+===================
+
+- Repeatedly appending to the same error is now faster due to fewer
+ allocations.
+
+
+v0.1.0 (2017-31-03)
+===================
+
+- Initial release
diff --git a/vendor/go.uber.org/multierr/LICENSE.txt b/vendor/go.uber.org/multierr/LICENSE.txt
new file mode 100644
index 0000000..858e024
--- /dev/null
+++ b/vendor/go.uber.org/multierr/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (c) 2017 Uber Technologies, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/go.uber.org/multierr/Makefile b/vendor/go.uber.org/multierr/Makefile
new file mode 100644
index 0000000..3160044
--- /dev/null
+++ b/vendor/go.uber.org/multierr/Makefile
@@ -0,0 +1,42 @@
+# Directory to put `go install`ed binaries in.
+export GOBIN ?= $(shell pwd)/bin
+
+GO_FILES := $(shell \
+ find . '(' -path '*/.*' -o -path './vendor' ')' -prune \
+ -o -name '*.go' -print | cut -b3-)
+
+.PHONY: build
+build:
+ go build ./...
+
+.PHONY: test
+test:
+ go test -race ./...
+
+.PHONY: gofmt
+gofmt:
+ $(eval FMT_LOG := $(shell mktemp -t gofmt.XXXXX))
+ @gofmt -e -s -l $(GO_FILES) > $(FMT_LOG) || true
+ @[ ! -s "$(FMT_LOG)" ] || (echo "gofmt failed:" | cat - $(FMT_LOG) && false)
+
+.PHONY: golint
+golint:
+ @cd tools && go install golang.org/x/lint/golint
+ @$(GOBIN)/golint ./...
+
+.PHONY: staticcheck
+staticcheck:
+ @cd tools && go install honnef.co/go/tools/cmd/staticcheck
+ @$(GOBIN)/staticcheck ./...
+
+.PHONY: lint
+lint: gofmt golint staticcheck
+
+.PHONY: cover
+cover:
+ go test -coverprofile=cover.out -coverpkg=./... -v ./...
+ go tool cover -html=cover.out -o cover.html
+
+update-license:
+ @cd tools && go install go.uber.org/tools/update-license
+ @$(GOBIN)/update-license $(GO_FILES)
diff --git a/vendor/go.uber.org/multierr/README.md b/vendor/go.uber.org/multierr/README.md
new file mode 100644
index 0000000..751bd65
--- /dev/null
+++ b/vendor/go.uber.org/multierr/README.md
@@ -0,0 +1,23 @@
+# multierr [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
+
+`multierr` allows combining one or more Go `error`s together.
+
+## Installation
+
+ go get -u go.uber.org/multierr
+
+## Status
+
+Stable: No breaking changes will be made before 2.0.
+
+-------------------------------------------------------------------------------
+
+Released under the [MIT License].
+
+[MIT License]: LICENSE.txt
+[doc-img]: https://godoc.org/go.uber.org/multierr?status.svg
+[doc]: https://godoc.org/go.uber.org/multierr
+[ci-img]: https://travis-ci.com/uber-go/multierr.svg?branch=master
+[cov-img]: https://codecov.io/gh/uber-go/multierr/branch/master/graph/badge.svg
+[ci]: https://travis-ci.com/uber-go/multierr
+[cov]: https://codecov.io/gh/uber-go/multierr
diff --git a/vendor/go.uber.org/multierr/error.go b/vendor/go.uber.org/multierr/error.go
new file mode 100644
index 0000000..5c9b67d
--- /dev/null
+++ b/vendor/go.uber.org/multierr/error.go
@@ -0,0 +1,449 @@
+// Copyright (c) 2019 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package multierr allows combining one or more errors together.
+//
+// Overview
+//
+// Errors can be combined with the use of the Combine function.
+//
+// multierr.Combine(
+// reader.Close(),
+// writer.Close(),
+// conn.Close(),
+// )
+//
+// If only two errors are being combined, the Append function may be used
+// instead.
+//
+// err = multierr.Append(reader.Close(), writer.Close())
+//
+// This makes it possible to record resource cleanup failures from deferred
+// blocks with the help of named return values.
+//
+// func sendRequest(req Request) (err error) {
+// conn, err := openConnection()
+// if err != nil {
+// return err
+// }
+// defer func() {
+// err = multierr.Append(err, conn.Close())
+// }()
+// // ...
+// }
+//
+// The underlying list of errors for a returned error object may be retrieved
+// with the Errors function.
+//
+// errors := multierr.Errors(err)
+// if len(errors) > 0 {
+// fmt.Println("The following errors occurred:", errors)
+// }
+//
+// Advanced Usage
+//
+// Errors returned by Combine and Append MAY implement the following
+// interface.
+//
+// type errorGroup interface {
+// // Returns a slice containing the underlying list of errors.
+// //
+// // This slice MUST NOT be modified by the caller.
+// Errors() []error
+// }
+//
+// Note that if you need access to list of errors behind a multierr error, you
+// should prefer using the Errors function. That said, if you need cheap
+// read-only access to the underlying errors slice, you can attempt to cast
+// the error to this interface. You MUST handle the failure case gracefully
+// because errors returned by Combine and Append are not guaranteed to
+// implement this interface.
+//
+// var errors []error
+// group, ok := err.(errorGroup)
+// if ok {
+// errors = group.Errors()
+// } else {
+// errors = []error{err}
+// }
+package multierr // import "go.uber.org/multierr"
+
+import (
+ "bytes"
+ "fmt"
+ "io"
+ "strings"
+ "sync"
+
+ "go.uber.org/atomic"
+)
+
+var (
+ // Separator for single-line error messages.
+ _singlelineSeparator = []byte("; ")
+
+ // Prefix for multi-line messages
+ _multilinePrefix = []byte("the following errors occurred:")
+
+ // Prefix for the first and following lines of an item in a list of
+ // multi-line error messages.
+ //
+ // For example, if a single item is:
+ //
+ // foo
+ // bar
+ //
+ // It will become,
+ //
+ // - foo
+ // bar
+ _multilineSeparator = []byte("\n - ")
+ _multilineIndent = []byte(" ")
+)
+
+// _bufferPool is a pool of bytes.Buffers.
+var _bufferPool = sync.Pool{
+ New: func() interface{} {
+ return &bytes.Buffer{}
+ },
+}
+
+type errorGroup interface {
+ Errors() []error
+}
+
+// Errors returns a slice containing zero or more errors that the supplied
+// error is composed of. If the error is nil, a nil slice is returned.
+//
+// err := multierr.Append(r.Close(), w.Close())
+// errors := multierr.Errors(err)
+//
+// If the error is not composed of other errors, the returned slice contains
+// just the error that was passed in.
+//
+// Callers of this function are free to modify the returned slice.
+func Errors(err error) []error {
+ if err == nil {
+ return nil
+ }
+
+ // Note that we're casting to multiError, not errorGroup. Our contract is
+ // that returned errors MAY implement errorGroup. Errors, however, only
+ // has special behavior for multierr-specific error objects.
+ //
+ // This behavior can be expanded in the future but I think it's prudent to
+ // start with as little as possible in terms of contract and possibility
+ // of misuse.
+ eg, ok := err.(*multiError)
+ if !ok {
+ return []error{err}
+ }
+
+ errors := eg.Errors()
+ result := make([]error, len(errors))
+ copy(result, errors)
+ return result
+}
+
+// multiError is an error that holds one or more errors.
+//
+// An instance of this is guaranteed to be non-empty and flattened. That is,
+// none of the errors inside multiError are other multiErrors.
+//
+// multiError formats to a semi-colon delimited list of error messages with
+// %v and with a more readable multi-line format with %+v.
+type multiError struct {
+ copyNeeded atomic.Bool
+ errors []error
+}
+
+var _ errorGroup = (*multiError)(nil)
+
+// Errors returns the list of underlying errors.
+//
+// This slice MUST NOT be modified.
+func (merr *multiError) Errors() []error {
+ if merr == nil {
+ return nil
+ }
+ return merr.errors
+}
+
+func (merr *multiError) Error() string {
+ if merr == nil {
+ return ""
+ }
+
+ buff := _bufferPool.Get().(*bytes.Buffer)
+ buff.Reset()
+
+ merr.writeSingleline(buff)
+
+ result := buff.String()
+ _bufferPool.Put(buff)
+ return result
+}
+
+func (merr *multiError) Format(f fmt.State, c rune) {
+ if c == 'v' && f.Flag('+') {
+ merr.writeMultiline(f)
+ } else {
+ merr.writeSingleline(f)
+ }
+}
+
+func (merr *multiError) writeSingleline(w io.Writer) {
+ first := true
+ for _, item := range merr.errors {
+ if first {
+ first = false
+ } else {
+ w.Write(_singlelineSeparator)
+ }
+ io.WriteString(w, item.Error())
+ }
+}
+
+func (merr *multiError) writeMultiline(w io.Writer) {
+ w.Write(_multilinePrefix)
+ for _, item := range merr.errors {
+ w.Write(_multilineSeparator)
+ writePrefixLine(w, _multilineIndent, fmt.Sprintf("%+v", item))
+ }
+}
+
+// Writes s to the writer with the given prefix added before each line after
+// the first.
+func writePrefixLine(w io.Writer, prefix []byte, s string) {
+ first := true
+ for len(s) > 0 {
+ if first {
+ first = false
+ } else {
+ w.Write(prefix)
+ }
+
+ idx := strings.IndexByte(s, '\n')
+ if idx < 0 {
+ idx = len(s) - 1
+ }
+
+ io.WriteString(w, s[:idx+1])
+ s = s[idx+1:]
+ }
+}
+
+type inspectResult struct {
+ // Number of top-level non-nil errors
+ Count int
+
+ // Total number of errors including multiErrors
+ Capacity int
+
+ // Index of the first non-nil error in the list. Value is meaningless if
+ // Count is zero.
+ FirstErrorIdx int
+
+ // Whether the list contains at least one multiError
+ ContainsMultiError bool
+}
+
+// Inspects the given slice of errors so that we can efficiently allocate
+// space for it.
+func inspect(errors []error) (res inspectResult) {
+ first := true
+ for i, err := range errors {
+ if err == nil {
+ continue
+ }
+
+ res.Count++
+ if first {
+ first = false
+ res.FirstErrorIdx = i
+ }
+
+ if merr, ok := err.(*multiError); ok {
+ res.Capacity += len(merr.errors)
+ res.ContainsMultiError = true
+ } else {
+ res.Capacity++
+ }
+ }
+ return
+}
+
+// fromSlice converts the given list of errors into a single error.
+func fromSlice(errors []error) error {
+ res := inspect(errors)
+ switch res.Count {
+ case 0:
+ return nil
+ case 1:
+ // only one non-nil entry
+ return errors[res.FirstErrorIdx]
+ case len(errors):
+ if !res.ContainsMultiError {
+ // already flat
+ return &multiError{errors: errors}
+ }
+ }
+
+ nonNilErrs := make([]error, 0, res.Capacity)
+ for _, err := range errors[res.FirstErrorIdx:] {
+ if err == nil {
+ continue
+ }
+
+ if nested, ok := err.(*multiError); ok {
+ nonNilErrs = append(nonNilErrs, nested.errors...)
+ } else {
+ nonNilErrs = append(nonNilErrs, err)
+ }
+ }
+
+ return &multiError{errors: nonNilErrs}
+}
+
+// Combine combines the passed errors into a single error.
+//
+// If zero arguments were passed or if all items are nil, a nil error is
+// returned.
+//
+// Combine(nil, nil) // == nil
+//
+// If only a single error was passed, it is returned as-is.
+//
+// Combine(err) // == err
+//
+// Combine skips over nil arguments so this function may be used to combine
+// together errors from operations that fail independently of each other.
+//
+// multierr.Combine(
+// reader.Close(),
+// writer.Close(),
+// pipe.Close(),
+// )
+//
+// If any of the passed errors is a multierr error, it will be flattened along
+// with the other errors.
+//
+// multierr.Combine(multierr.Combine(err1, err2), err3)
+// // is the same as
+// multierr.Combine(err1, err2, err3)
+//
+// The returned error formats into a readable multi-line error message if
+// formatted with %+v.
+//
+// fmt.Sprintf("%+v", multierr.Combine(err1, err2))
+func Combine(errors ...error) error {
+ return fromSlice(errors)
+}
+
+// Append appends the given errors together. Either value may be nil.
+//
+// This function is a specialization of Combine for the common case where
+// there are only two errors.
+//
+// err = multierr.Append(reader.Close(), writer.Close())
+//
+// The following pattern may also be used to record failure of deferred
+// operations without losing information about the original error.
+//
+// func doSomething(..) (err error) {
+// f := acquireResource()
+// defer func() {
+// err = multierr.Append(err, f.Close())
+// }()
+func Append(left error, right error) error {
+ switch {
+ case left == nil:
+ return right
+ case right == nil:
+ return left
+ }
+
+ if _, ok := right.(*multiError); !ok {
+ if l, ok := left.(*multiError); ok && !l.copyNeeded.Swap(true) {
+ // Common case where the error on the left is constantly being
+ // appended to.
+ errs := append(l.errors, right)
+ return &multiError{errors: errs}
+ } else if !ok {
+ // Both errors are single errors.
+ return &multiError{errors: []error{left, right}}
+ }
+ }
+
+ // Either right or both, left and right, are multiErrors. Rely on usual
+ // expensive logic.
+ errors := [2]error{left, right}
+ return fromSlice(errors[0:])
+}
+
+// AppendInto appends an error into the destination of an error pointer and
+// returns whether the error being appended was non-nil.
+//
+// var err error
+// multierr.AppendInto(&err, r.Close())
+// multierr.AppendInto(&err, w.Close())
+//
+// The above is equivalent to,
+//
+// err := multierr.Append(r.Close(), w.Close())
+//
+// As AppendInto reports whether the provided error was non-nil, it may be
+// used to build a multierr error in a loop more ergonomically. For example:
+//
+// var err error
+// for line := range lines {
+// var item Item
+// if multierr.AppendInto(&err, parse(line, &item)) {
+// continue
+// }
+// items = append(items, item)
+// }
+//
+// Compare this with a verison that relies solely on Append:
+//
+// var err error
+// for line := range lines {
+// var item Item
+// if parseErr := parse(line, &item); parseErr != nil {
+// err = multierr.Append(err, parseErr)
+// continue
+// }
+// items = append(items, item)
+// }
+func AppendInto(into *error, err error) (errored bool) {
+ if into == nil {
+ // We panic if 'into' is nil. This is not documented above
+ // because suggesting that the pointer must be non-nil may
+ // confuse users into thinking that the error that it points
+ // to must be non-nil.
+ panic("misuse of multierr.AppendInto: into pointer must not be nil")
+ }
+
+ if err == nil {
+ return false
+ }
+ *into = Append(*into, err)
+ return true
+}
diff --git a/vendor/go.uber.org/multierr/glide.yaml b/vendor/go.uber.org/multierr/glide.yaml
new file mode 100644
index 0000000..6ef084e
--- /dev/null
+++ b/vendor/go.uber.org/multierr/glide.yaml
@@ -0,0 +1,8 @@
+package: go.uber.org/multierr
+import:
+- package: go.uber.org/atomic
+ version: ^1
+testImport:
+- package: github.com/stretchr/testify
+ subpackages:
+ - assert
diff --git a/vendor/go.uber.org/multierr/go.mod b/vendor/go.uber.org/multierr/go.mod
new file mode 100644
index 0000000..ff8bdf9
--- /dev/null
+++ b/vendor/go.uber.org/multierr/go.mod
@@ -0,0 +1,8 @@
+module go.uber.org/multierr
+
+go 1.12
+
+require (
+ github.com/stretchr/testify v1.3.0
+ go.uber.org/atomic v1.7.0
+)
diff --git a/vendor/go.uber.org/multierr/go.sum b/vendor/go.uber.org/multierr/go.sum
new file mode 100644
index 0000000..ecfc286
--- /dev/null
+++ b/vendor/go.uber.org/multierr/go.sum
@@ -0,0 +1,11 @@
+github.com/davecgh/go-spew v1.1.0 h1:ZDRjVQ15GmhC3fiQ8ni8+OwkZQO4DARzQgrnXU1Liz8=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
diff --git a/vendor/go.uber.org/multierr/go113.go b/vendor/go.uber.org/multierr/go113.go
new file mode 100644
index 0000000..264b0ea
--- /dev/null
+++ b/vendor/go.uber.org/multierr/go113.go
@@ -0,0 +1,52 @@
+// Copyright (c) 2019 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// +build go1.13
+
+package multierr
+
+import "errors"
+
+// As attempts to find the first error in the error list that matches the type
+// of the value that target points to.
+//
+// This function allows errors.As to traverse the values stored on the
+// multierr error.
+func (merr *multiError) As(target interface{}) bool {
+ for _, err := range merr.Errors() {
+ if errors.As(err, target) {
+ return true
+ }
+ }
+ return false
+}
+
+// Is attempts to match the provided error against errors in the error list.
+//
+// This function allows errors.Is to traverse the values stored on the
+// multierr error.
+func (merr *multiError) Is(target error) bool {
+ for _, err := range merr.Errors() {
+ if errors.Is(err, target) {
+ return true
+ }
+ }
+ return false
+}
diff --git a/vendor/go.uber.org/zap/.codecov.yml b/vendor/go.uber.org/zap/.codecov.yml
new file mode 100644
index 0000000..8e5ca7d
--- /dev/null
+++ b/vendor/go.uber.org/zap/.codecov.yml
@@ -0,0 +1,17 @@
+coverage:
+ range: 80..100
+ round: down
+ precision: 2
+
+ status:
+ project: # measuring the overall project coverage
+ default: # context, you can create multiple ones with custom titles
+ enabled: yes # must be yes|true to enable this status
+ target: 95% # specify the target coverage for each commit status
+ # option: "auto" (must increase from parent commit or pull request base)
+ # option: "X%" a static target percentage to hit
+ if_not_found: success # if parent is not found report status as success, error, or failure
+ if_ci_failed: error # if ci fails report status as success, error, or failure
+ignore:
+ - internal/readme/readme.go
+
diff --git a/vendor/go.uber.org/zap/.gitignore b/vendor/go.uber.org/zap/.gitignore
new file mode 100644
index 0000000..da9d9d0
--- /dev/null
+++ b/vendor/go.uber.org/zap/.gitignore
@@ -0,0 +1,32 @@
+# Compiled Object files, Static and Dynamic libs (Shared Objects)
+*.o
+*.a
+*.so
+
+# Folders
+_obj
+_test
+vendor
+
+# Architecture specific extensions/prefixes
+*.[568vq]
+[568vq].out
+
+*.cgo1.go
+*.cgo2.c
+_cgo_defun.c
+_cgo_gotypes.go
+_cgo_export.*
+
+_testmain.go
+
+*.exe
+*.test
+*.prof
+*.pprof
+*.out
+*.log
+
+/bin
+cover.out
+cover.html
diff --git a/vendor/go.uber.org/zap/.readme.tmpl b/vendor/go.uber.org/zap/.readme.tmpl
new file mode 100644
index 0000000..3154a1e
--- /dev/null
+++ b/vendor/go.uber.org/zap/.readme.tmpl
@@ -0,0 +1,109 @@
+# :zap: zap [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
+
+Blazing fast, structured, leveled logging in Go.
+
+## Installation
+
+`go get -u go.uber.org/zap`
+
+Note that zap only supports the two most recent minor versions of Go.
+
+## Quick Start
+
+In contexts where performance is nice, but not critical, use the
+`SugaredLogger`. It's 4-10x faster than other structured logging
+packages and includes both structured and `printf`-style APIs.
+
+```go
+logger, _ := zap.NewProduction()
+defer logger.Sync() // flushes buffer, if any
+sugar := logger.Sugar()
+sugar.Infow("failed to fetch URL",
+ // Structured context as loosely typed key-value pairs.
+ "url", url,
+ "attempt", 3,
+ "backoff", time.Second,
+)
+sugar.Infof("Failed to fetch URL: %s", url)
+```
+
+When performance and type safety are critical, use the `Logger`. It's even
+faster than the `SugaredLogger` and allocates far less, but it only supports
+structured logging.
+
+```go
+logger, _ := zap.NewProduction()
+defer logger.Sync()
+logger.Info("failed to fetch URL",
+ // Structured context as strongly typed Field values.
+ zap.String("url", url),
+ zap.Int("attempt", 3),
+ zap.Duration("backoff", time.Second),
+)
+```
+
+See the [documentation][doc] and [FAQ](FAQ.md) for more details.
+
+## Performance
+
+For applications that log in the hot path, reflection-based serialization and
+string formatting are prohibitively expensive — they're CPU-intensive
+and make many small allocations. Put differently, using `encoding/json` and
+`fmt.Fprintf` to log tons of `interface{}`s makes your application slow.
+
+Zap takes a different approach. It includes a reflection-free, zero-allocation
+JSON encoder, and the base `Logger` strives to avoid serialization overhead
+and allocations wherever possible. By building the high-level `SugaredLogger`
+on that foundation, zap lets users *choose* when they need to count every
+allocation and when they'd prefer a more familiar, loosely typed API.
+
+As measured by its own [benchmarking suite][], not only is zap more performant
+than comparable structured logging packages — it's also faster than the
+standard library. Like all benchmarks, take these with a grain of salt.<sup
+id="anchor-versions">[1](#footnote-versions)</sup>
+
+Log a message and 10 fields:
+
+{{.BenchmarkAddingFields}}
+
+Log a message with a logger that already has 10 fields of context:
+
+{{.BenchmarkAccumulatedContext}}
+
+Log a static string, without any context or `printf`-style templating:
+
+{{.BenchmarkWithoutFields}}
+
+## Development Status: Stable
+
+All APIs are finalized, and no breaking changes will be made in the 1.x series
+of releases. Users of semver-aware dependency management systems should pin
+zap to `^1`.
+
+## Contributing
+
+We encourage and support an active, healthy community of contributors —
+including you! Details are in the [contribution guide](CONTRIBUTING.md) and
+the [code of conduct](CODE_OF_CONDUCT.md). The zap maintainers keep an eye on
+issues and pull requests, but you can also report any negative conduct to
+oss-conduct@uber.com. That email list is a private, safe space; even the zap
+maintainers don't have access, so don't hesitate to hold us to a high
+standard.
+
+<hr>
+
+Released under the [MIT License](LICENSE.txt).
+
+<sup id="footnote-versions">1</sup> In particular, keep in mind that we may be
+benchmarking against slightly older versions of other packages. Versions are
+pinned in zap's [glide.lock][] file. [↩](#anchor-versions)
+
+[doc-img]: https://godoc.org/go.uber.org/zap?status.svg
+[doc]: https://godoc.org/go.uber.org/zap
+[ci-img]: https://travis-ci.com/uber-go/zap.svg?branch=master
+[ci]: https://travis-ci.com/uber-go/zap
+[cov-img]: https://codecov.io/gh/uber-go/zap/branch/master/graph/badge.svg
+[cov]: https://codecov.io/gh/uber-go/zap
+[benchmarking suite]: https://github.com/uber-go/zap/tree/master/benchmarks
+[glide.lock]: https://github.com/uber-go/zap/blob/master/glide.lock
+
diff --git a/vendor/go.uber.org/zap/CHANGELOG.md b/vendor/go.uber.org/zap/CHANGELOG.md
new file mode 100644
index 0000000..6c32101
--- /dev/null
+++ b/vendor/go.uber.org/zap/CHANGELOG.md
@@ -0,0 +1,492 @@
+# Changelog
+
+## 1.18.1 (28 Jun 2021)
+
+Bugfixes:
+* [#974][]: Fix nil dereference in logger constructed by `zap.NewNop`.
+
+[#974]: https://github.com/uber-go/zap/pull/974
+
+## 1.18.0 (28 Jun 2021)
+
+Enhancements:
+* [#961][]: Add `zapcore.BufferedWriteSyncer`, a new `WriteSyncer` that buffers
+ messages in-memory and flushes them periodically.
+* [#971][]: Add `zapio.Writer` to use a Zap logger as an `io.Writer`.
+* [#897][]: Add `zap.WithClock` option to control the source of time via the
+ new `zapcore.Clock` interface.
+* [#949][]: Avoid panicking in `zap.SugaredLogger` when arguments of `*w`
+ methods don't match expectations.
+* [#943][]: Add support for filtering by level or arbitrary matcher function to
+ `zaptest/observer`.
+* [#691][]: Comply with `io.StringWriter` and `io.ByteWriter` in Zap's
+ `buffer.Buffer`.
+
+Thanks to @atrn0, @ernado, @heyanfu, @hnlq715, @zchee
+for their contributions to this release.
+
+[#691]: https://github.com/uber-go/zap/pull/691
+[#897]: https://github.com/uber-go/zap/pull/897
+[#943]: https://github.com/uber-go/zap/pull/943
+[#949]: https://github.com/uber-go/zap/pull/949
+[#961]: https://github.com/uber-go/zap/pull/961
+[#971]: https://github.com/uber-go/zap/pull/971
+
+## 1.17.0 (25 May 2021)
+
+Bugfixes:
+* [#867][]: Encode `<nil>` for nil `error` instead of a panic.
+* [#931][], [#936][]: Update minimum version constraints to address
+ vulnerabilities in dependencies.
+
+Enhancements:
+* [#865][]: Improve alignment of fields of the Logger struct, reducing its
+ size from 96 to 80 bytes.
+* [#881][]: Support `grpclog.LoggerV2` in zapgrpc.
+* [#903][]: Support URL-encoded POST requests to the AtomicLevel HTTP handler
+ with the `application/x-www-form-urlencoded` content type.
+* [#912][]: Support multi-field encoding with `zap.Inline`.
+* [#913][]: Speed up SugaredLogger for calls with a single string.
+* [#928][]: Add support for filtering by field name to `zaptest/observer`.
+
+Thanks to @ash2k, @FMLS, @jimmystewpot, @Oncilla, @tsoslow, @tylitianrui, @withshubh, and @wziww for their contributions to this release.
+
+## 1.16.0 (1 Sep 2020)
+
+Bugfixes:
+* [#828][]: Fix missing newline in IncreaseLevel error messages.
+* [#835][]: Fix panic in JSON encoder when encoding times or durations
+ without specifying a time or duration encoder.
+* [#843][]: Honor CallerSkip when taking stack traces.
+* [#862][]: Fix the default file permissions to use `0666` and rely on the umask instead.
+* [#854][]: Encode `<nil>` for nil `Stringer` instead of a panic error log.
+
+Enhancements:
+* [#629][]: Added `zapcore.TimeEncoderOfLayout` to easily create time encoders
+ for custom layouts.
+* [#697][]: Added support for a configurable delimiter in the console encoder.
+* [#852][]: Optimize console encoder by pooling the underlying JSON encoder.
+* [#844][]: Add ability to include the calling function as part of logs.
+* [#843][]: Add `StackSkip` for including truncated stacks as a field.
+* [#861][]: Add options to customize Fatal behaviour for better testability.
+
+Thanks to @SteelPhase, @tmshn, @lixingwang, @wyxloading, @moul, @segevfiner, @andy-retailnext and @jcorbin for their contributions to this release.
+
+## 1.15.0 (23 Apr 2020)
+
+Bugfixes:
+* [#804][]: Fix handling of `Time` values out of `UnixNano` range.
+* [#812][]: Fix `IncreaseLevel` being reset after a call to `With`.
+
+Enhancements:
+* [#806][]: Add `WithCaller` option to supersede the `AddCaller` option. This
+ allows disabling annotation of log entries with caller information if
+ previously enabled with `AddCaller`.
+* [#813][]: Deprecate `NewSampler` constructor in favor of
+ `NewSamplerWithOptions` which supports a `SamplerHook` option. This option
+ adds support for monitoring sampling decisions through a hook.
+
+Thanks to @danielbprice for their contributions to this release.
+
+## 1.14.1 (14 Mar 2020)
+
+Bugfixes:
+* [#791][]: Fix panic on attempting to build a logger with an invalid Config.
+* [#795][]: Vendoring Zap with `go mod vendor` no longer includes Zap's
+ development-time dependencies.
+* [#799][]: Fix issue introduced in 1.14.0 that caused invalid JSON output to
+ be generated for arrays of `time.Time` objects when using string-based time
+ formats.
+
+Thanks to @YashishDua for their contributions to this release.
+
+## 1.14.0 (20 Feb 2020)
+
+Enhancements:
+* [#771][]: Optimize calls for disabled log levels.
+* [#773][]: Add millisecond duration encoder.
+* [#775][]: Add option to increase the level of a logger.
+* [#786][]: Optimize time formatters using `Time.AppendFormat` where possible.
+
+Thanks to @caibirdme for their contributions to this release.
+
+## 1.13.0 (13 Nov 2019)
+
+Enhancements:
+* [#758][]: Add `Intp`, `Stringp`, and other similar `*p` field constructors
+ to log pointers to primitives with support for `nil` values.
+
+Thanks to @jbizzle for their contributions to this release.
+
+## 1.12.0 (29 Oct 2019)
+
+Enhancements:
+* [#751][]: Migrate to Go modules.
+
+## 1.11.0 (21 Oct 2019)
+
+Enhancements:
+* [#725][]: Add `zapcore.OmitKey` to omit keys in an `EncoderConfig`.
+* [#736][]: Add `RFC3339` and `RFC3339Nano` time encoders.
+
+Thanks to @juicemia, @uhthomas for their contributions to this release.
+
+## 1.10.0 (29 Apr 2019)
+
+Bugfixes:
+* [#657][]: Fix `MapObjectEncoder.AppendByteString` not adding value as a
+ string.
+* [#706][]: Fix incorrect call depth to determine caller in Go 1.12.
+
+Enhancements:
+* [#610][]: Add `zaptest.WrapOptions` to wrap `zap.Option` for creating test
+ loggers.
+* [#675][]: Don't panic when encoding a String field.
+* [#704][]: Disable HTML escaping for JSON objects encoded using the
+ reflect-based encoder.
+
+Thanks to @iaroslav-ciupin, @lelenanam, @joa, @NWilson for their contributions
+to this release.
+
+## v1.9.1 (06 Aug 2018)
+
+Bugfixes:
+
+* [#614][]: MapObjectEncoder should not ignore empty slices.
+
+## v1.9.0 (19 Jul 2018)
+
+Enhancements:
+* [#602][]: Reduce number of allocations when logging with reflection.
+* [#572][], [#606][]: Expose a registry for third-party logging sinks.
+
+Thanks to @nfarah86, @AlekSi, @JeanMertz, @philippgille, @etsangsplk, and
+@dimroc for their contributions to this release.
+
+## v1.8.0 (13 Apr 2018)
+
+Enhancements:
+* [#508][]: Make log level configurable when redirecting the standard
+ library's logger.
+* [#518][]: Add a logger that writes to a `*testing.TB`.
+* [#577][]: Add a top-level alias for `zapcore.Field` to clean up GoDoc.
+
+Bugfixes:
+* [#574][]: Add a missing import comment to `go.uber.org/zap/buffer`.
+
+Thanks to @DiSiqueira and @djui for their contributions to this release.
+
+## v1.7.1 (25 Sep 2017)
+
+Bugfixes:
+* [#504][]: Store strings when using AddByteString with the map encoder.
+
+## v1.7.0 (21 Sep 2017)
+
+Enhancements:
+
+* [#487][]: Add `NewStdLogAt`, which extends `NewStdLog` by allowing the user
+ to specify the level of the logged messages.
+
+## v1.6.0 (30 Aug 2017)
+
+Enhancements:
+
+* [#491][]: Omit zap stack frames from stacktraces.
+* [#490][]: Add a `ContextMap` method to observer logs for simpler
+ field validation in tests.
+
+## v1.5.0 (22 Jul 2017)
+
+Enhancements:
+
+* [#460][] and [#470][]: Support errors produced by `go.uber.org/multierr`.
+* [#465][]: Support user-supplied encoders for logger names.
+
+Bugfixes:
+
+* [#477][]: Fix a bug that incorrectly truncated deep stacktraces.
+
+Thanks to @richard-tunein and @pavius for their contributions to this release.
+
+## v1.4.1 (08 Jun 2017)
+
+This release fixes two bugs.
+
+Bugfixes:
+
+* [#435][]: Support a variety of case conventions when unmarshaling levels.
+* [#444][]: Fix a panic in the observer.
+
+## v1.4.0 (12 May 2017)
+
+This release adds a few small features and is fully backward-compatible.
+
+Enhancements:
+
+* [#424][]: Add a `LineEnding` field to `EncoderConfig`, allowing users to
+ override the Unix-style default.
+* [#425][]: Preserve time zones when logging times.
+* [#431][]: Make `zap.AtomicLevel` implement `fmt.Stringer`, which makes a
+ variety of operations a bit simpler.
+
+## v1.3.0 (25 Apr 2017)
+
+This release adds an enhancement to zap's testing helpers as well as the
+ability to marshal an AtomicLevel. It is fully backward-compatible.
+
+Enhancements:
+
+* [#415][]: Add a substring-filtering helper to zap's observer. This is
+ particularly useful when testing the `SugaredLogger`.
+* [#416][]: Make `AtomicLevel` implement `encoding.TextMarshaler`.
+
+## v1.2.0 (13 Apr 2017)
+
+This release adds a gRPC compatibility wrapper. It is fully backward-compatible.
+
+Enhancements:
+
+* [#402][]: Add a `zapgrpc` package that wraps zap's Logger and implements
+ `grpclog.Logger`.
+
+## v1.1.0 (31 Mar 2017)
+
+This release fixes two bugs and adds some enhancements to zap's testing helpers.
+It is fully backward-compatible.
+
+Bugfixes:
+
+* [#385][]: Fix caller path trimming on Windows.
+* [#396][]: Fix a panic when attempting to use non-existent directories with
+ zap's configuration struct.
+
+Enhancements:
+
+* [#386][]: Add filtering helpers to zaptest's observing logger.
+
+Thanks to @moitias for contributing to this release.
+
+## v1.0.0 (14 Mar 2017)
+
+This is zap's first stable release. All exported APIs are now final, and no
+further breaking changes will be made in the 1.x release series. Anyone using a
+semver-aware dependency manager should now pin to `^1`.
+
+Breaking changes:
+
+* [#366][]: Add byte-oriented APIs to encoders to log UTF-8 encoded text without
+ casting from `[]byte` to `string`.
+* [#364][]: To support buffering outputs, add `Sync` methods to `zapcore.Core`,
+ `zap.Logger`, and `zap.SugaredLogger`.
+* [#371][]: Rename the `testutils` package to `zaptest`, which is less likely to
+ clash with other testing helpers.
+
+Bugfixes:
+
+* [#362][]: Make the ISO8601 time formatters fixed-width, which is friendlier
+ for tab-separated console output.
+* [#369][]: Remove the automatic locks in `zapcore.NewCore`, which allows zap to
+ work with concurrency-safe `WriteSyncer` implementations.
+* [#347][]: Stop reporting errors when trying to `fsync` standard out on Linux
+ systems.
+* [#373][]: Report the correct caller from zap's standard library
+ interoperability wrappers.
+
+Enhancements:
+
+* [#348][]: Add a registry allowing third-party encodings to work with zap's
+ built-in `Config`.
+* [#327][]: Make the representation of logger callers configurable (like times,
+ levels, and durations).
+* [#376][]: Allow third-party encoders to use their own buffer pools, which
+ removes the last performance advantage that zap's encoders have over plugins.
+* [#346][]: Add `CombineWriteSyncers`, a convenience function to tee multiple
+ `WriteSyncer`s and lock the result.
+* [#365][]: Make zap's stacktraces compatible with mid-stack inlining (coming in
+ Go 1.9).
+* [#372][]: Export zap's observing logger as `zaptest/observer`. This makes it
+ easier for particularly punctilious users to unit test their application's
+ logging.
+
+Thanks to @suyash, @htrendev, @flisky, @Ulexus, and @skipor for their
+contributions to this release.
+
+## v1.0.0-rc.3 (7 Mar 2017)
+
+This is the third release candidate for zap's stable release. There are no
+breaking changes.
+
+Bugfixes:
+
+* [#339][]: Byte slices passed to `zap.Any` are now correctly treated as binary blobs
+ rather than `[]uint8`.
+
+Enhancements:
+
+* [#307][]: Users can opt into colored output for log levels.
+* [#353][]: In addition to hijacking the output of the standard library's
+ package-global logging functions, users can now construct a zap-backed
+ `log.Logger` instance.
+* [#311][]: Frames from common runtime functions and some of zap's internal
+ machinery are now omitted from stacktraces.
+
+Thanks to @ansel1 and @suyash for their contributions to this release.
+
+## v1.0.0-rc.2 (21 Feb 2017)
+
+This is the second release candidate for zap's stable release. It includes two
+breaking changes.
+
+Breaking changes:
+
+* [#316][]: Zap's global loggers are now fully concurrency-safe
+ (previously, users had to ensure that `ReplaceGlobals` was called before the
+ loggers were in use). However, they must now be accessed via the `L()` and
+ `S()` functions. Users can update their projects with
+
+ ```
+ gofmt -r "zap.L -> zap.L()" -w .
+ gofmt -r "zap.S -> zap.S()" -w .
+ ```
+* [#309][] and [#317][]: RC1 was mistakenly shipped with invalid
+ JSON and YAML struct tags on all config structs. This release fixes the tags
+ and adds static analysis to prevent similar bugs in the future.
+
+Bugfixes:
+
+* [#321][]: Redirecting the standard library's `log` output now
+ correctly reports the logger's caller.
+
+Enhancements:
+
+* [#325][] and [#333][]: Zap now transparently supports non-standard, rich
+ errors like those produced by `github.com/pkg/errors`.
+* [#326][]: Though `New(nil)` continues to return a no-op logger, `NewNop()` is
+ now preferred. Users can update their projects with `gofmt -r 'zap.New(nil) ->
+ zap.NewNop()' -w .`.
+* [#300][]: Incorrectly importing zap as `github.com/uber-go/zap` now returns a
+ more informative error.
+
+Thanks to @skipor and @chapsuk for their contributions to this release.
+
+## v1.0.0-rc.1 (14 Feb 2017)
+
+This is the first release candidate for zap's stable release. There are multiple
+breaking changes and improvements from the pre-release version. Most notably:
+
+* **Zap's import path is now "go.uber.org/zap"** — all users will
+ need to update their code.
+* User-facing types and functions remain in the `zap` package. Code relevant
+ largely to extension authors is now in the `zapcore` package.
+* The `zapcore.Core` type makes it easy for third-party packages to use zap's
+ internals but provide a different user-facing API.
+* `Logger` is now a concrete type instead of an interface.
+* A less verbose (though slower) logging API is included by default.
+* Package-global loggers `L` and `S` are included.
+* A human-friendly console encoder is included.
+* A declarative config struct allows common logger configurations to be managed
+ as configuration instead of code.
+* Sampling is more accurate, and doesn't depend on the standard library's shared
+ timer heap.
+
+## v0.1.0-beta.1 (6 Feb 2017)
+
+This is a minor version, tagged to allow users to pin to the pre-1.0 APIs and
+upgrade at their leisure. Since this is the first tagged release, there are no
+backward compatibility concerns and all functionality is new.
+
+Early zap adopters should pin to the 0.1.x minor version until they're ready to
+upgrade to the upcoming stable release.
+
+[#316]: https://github.com/uber-go/zap/pull/316
+[#309]: https://github.com/uber-go/zap/pull/309
+[#317]: https://github.com/uber-go/zap/pull/317
+[#321]: https://github.com/uber-go/zap/pull/321
+[#325]: https://github.com/uber-go/zap/pull/325
+[#333]: https://github.com/uber-go/zap/pull/333
+[#326]: https://github.com/uber-go/zap/pull/326
+[#300]: https://github.com/uber-go/zap/pull/300
+[#339]: https://github.com/uber-go/zap/pull/339
+[#307]: https://github.com/uber-go/zap/pull/307
+[#353]: https://github.com/uber-go/zap/pull/353
+[#311]: https://github.com/uber-go/zap/pull/311
+[#366]: https://github.com/uber-go/zap/pull/366
+[#364]: https://github.com/uber-go/zap/pull/364
+[#371]: https://github.com/uber-go/zap/pull/371
+[#362]: https://github.com/uber-go/zap/pull/362
+[#369]: https://github.com/uber-go/zap/pull/369
+[#347]: https://github.com/uber-go/zap/pull/347
+[#373]: https://github.com/uber-go/zap/pull/373
+[#348]: https://github.com/uber-go/zap/pull/348
+[#327]: https://github.com/uber-go/zap/pull/327
+[#376]: https://github.com/uber-go/zap/pull/376
+[#346]: https://github.com/uber-go/zap/pull/346
+[#365]: https://github.com/uber-go/zap/pull/365
+[#372]: https://github.com/uber-go/zap/pull/372
+[#385]: https://github.com/uber-go/zap/pull/385
+[#396]: https://github.com/uber-go/zap/pull/396
+[#386]: https://github.com/uber-go/zap/pull/386
+[#402]: https://github.com/uber-go/zap/pull/402
+[#415]: https://github.com/uber-go/zap/pull/415
+[#416]: https://github.com/uber-go/zap/pull/416
+[#424]: https://github.com/uber-go/zap/pull/424
+[#425]: https://github.com/uber-go/zap/pull/425
+[#431]: https://github.com/uber-go/zap/pull/431
+[#435]: https://github.com/uber-go/zap/pull/435
+[#444]: https://github.com/uber-go/zap/pull/444
+[#477]: https://github.com/uber-go/zap/pull/477
+[#465]: https://github.com/uber-go/zap/pull/465
+[#460]: https://github.com/uber-go/zap/pull/460
+[#470]: https://github.com/uber-go/zap/pull/470
+[#487]: https://github.com/uber-go/zap/pull/487
+[#490]: https://github.com/uber-go/zap/pull/490
+[#491]: https://github.com/uber-go/zap/pull/491
+[#504]: https://github.com/uber-go/zap/pull/504
+[#508]: https://github.com/uber-go/zap/pull/508
+[#518]: https://github.com/uber-go/zap/pull/518
+[#577]: https://github.com/uber-go/zap/pull/577
+[#574]: https://github.com/uber-go/zap/pull/574
+[#602]: https://github.com/uber-go/zap/pull/602
+[#572]: https://github.com/uber-go/zap/pull/572
+[#606]: https://github.com/uber-go/zap/pull/606
+[#614]: https://github.com/uber-go/zap/pull/614
+[#657]: https://github.com/uber-go/zap/pull/657
+[#706]: https://github.com/uber-go/zap/pull/706
+[#610]: https://github.com/uber-go/zap/pull/610
+[#675]: https://github.com/uber-go/zap/pull/675
+[#704]: https://github.com/uber-go/zap/pull/704
+[#725]: https://github.com/uber-go/zap/pull/725
+[#736]: https://github.com/uber-go/zap/pull/736
+[#751]: https://github.com/uber-go/zap/pull/751
+[#758]: https://github.com/uber-go/zap/pull/758
+[#771]: https://github.com/uber-go/zap/pull/771
+[#773]: https://github.com/uber-go/zap/pull/773
+[#775]: https://github.com/uber-go/zap/pull/775
+[#786]: https://github.com/uber-go/zap/pull/786
+[#791]: https://github.com/uber-go/zap/pull/791
+[#795]: https://github.com/uber-go/zap/pull/795
+[#799]: https://github.com/uber-go/zap/pull/799
+[#804]: https://github.com/uber-go/zap/pull/804
+[#812]: https://github.com/uber-go/zap/pull/812
+[#806]: https://github.com/uber-go/zap/pull/806
+[#813]: https://github.com/uber-go/zap/pull/813
+[#629]: https://github.com/uber-go/zap/pull/629
+[#697]: https://github.com/uber-go/zap/pull/697
+[#828]: https://github.com/uber-go/zap/pull/828
+[#835]: https://github.com/uber-go/zap/pull/835
+[#843]: https://github.com/uber-go/zap/pull/843
+[#844]: https://github.com/uber-go/zap/pull/844
+[#852]: https://github.com/uber-go/zap/pull/852
+[#854]: https://github.com/uber-go/zap/pull/854
+[#861]: https://github.com/uber-go/zap/pull/861
+[#862]: https://github.com/uber-go/zap/pull/862
+[#865]: https://github.com/uber-go/zap/pull/865
+[#867]: https://github.com/uber-go/zap/pull/867
+[#881]: https://github.com/uber-go/zap/pull/881
+[#903]: https://github.com/uber-go/zap/pull/903
+[#912]: https://github.com/uber-go/zap/pull/912
+[#913]: https://github.com/uber-go/zap/pull/913
+[#928]: https://github.com/uber-go/zap/pull/928
+[#931]: https://github.com/uber-go/zap/pull/931
+[#936]: https://github.com/uber-go/zap/pull/936
diff --git a/vendor/go.uber.org/zap/CODE_OF_CONDUCT.md b/vendor/go.uber.org/zap/CODE_OF_CONDUCT.md
new file mode 100644
index 0000000..e327d9a
--- /dev/null
+++ b/vendor/go.uber.org/zap/CODE_OF_CONDUCT.md
@@ -0,0 +1,75 @@
+# Contributor Covenant Code of Conduct
+
+## Our Pledge
+
+In the interest of fostering an open and welcoming environment, we as
+contributors and maintainers pledge to making participation in our project and
+our community a harassment-free experience for everyone, regardless of age,
+body size, disability, ethnicity, gender identity and expression, level of
+experience, nationality, personal appearance, race, religion, or sexual
+identity and orientation.
+
+## Our Standards
+
+Examples of behavior that contributes to creating a positive environment
+include:
+
+* Using welcoming and inclusive language
+* Being respectful of differing viewpoints and experiences
+* Gracefully accepting constructive criticism
+* Focusing on what is best for the community
+* Showing empathy towards other community members
+
+Examples of unacceptable behavior by participants include:
+
+* The use of sexualized language or imagery and unwelcome sexual attention or
+ advances
+* Trolling, insulting/derogatory comments, and personal or political attacks
+* Public or private harassment
+* Publishing others' private information, such as a physical or electronic
+ address, without explicit permission
+* Other conduct which could reasonably be considered inappropriate in a
+ professional setting
+
+## Our Responsibilities
+
+Project maintainers are responsible for clarifying the standards of acceptable
+behavior and are expected to take appropriate and fair corrective action in
+response to any instances of unacceptable behavior.
+
+Project maintainers have the right and responsibility to remove, edit, or
+reject comments, commits, code, wiki edits, issues, and other contributions
+that are not aligned to this Code of Conduct, or to ban temporarily or
+permanently any contributor for other behaviors that they deem inappropriate,
+threatening, offensive, or harmful.
+
+## Scope
+
+This Code of Conduct applies both within project spaces and in public spaces
+when an individual is representing the project or its community. Examples of
+representing a project or community include using an official project e-mail
+address, posting via an official social media account, or acting as an
+appointed representative at an online or offline event. Representation of a
+project may be further defined and clarified by project maintainers.
+
+## Enforcement
+
+Instances of abusive, harassing, or otherwise unacceptable behavior may be
+reported by contacting the project team at oss-conduct@uber.com. The project
+team will review and investigate all complaints, and will respond in a way
+that it deems appropriate to the circumstances. The project team is obligated
+to maintain confidentiality with regard to the reporter of an incident.
+Further details of specific enforcement policies may be posted separately.
+
+Project maintainers who do not follow or enforce the Code of Conduct in good
+faith may face temporary or permanent repercussions as determined by other
+members of the project's leadership.
+
+## Attribution
+
+This Code of Conduct is adapted from the [Contributor Covenant][homepage],
+version 1.4, available at
+[http://contributor-covenant.org/version/1/4][version].
+
+[homepage]: http://contributor-covenant.org
+[version]: http://contributor-covenant.org/version/1/4/
diff --git a/vendor/go.uber.org/zap/CONTRIBUTING.md b/vendor/go.uber.org/zap/CONTRIBUTING.md
new file mode 100644
index 0000000..5cd9656
--- /dev/null
+++ b/vendor/go.uber.org/zap/CONTRIBUTING.md
@@ -0,0 +1,75 @@
+# Contributing
+
+We'd love your help making zap the very best structured logging library in Go!
+
+If you'd like to add new exported APIs, please [open an issue][open-issue]
+describing your proposal — discussing API changes ahead of time makes
+pull request review much smoother. In your issue, pull request, and any other
+communications, please remember to treat your fellow contributors with
+respect! We take our [code of conduct](CODE_OF_CONDUCT.md) seriously.
+
+Note that you'll need to sign [Uber's Contributor License Agreement][cla]
+before we can accept any of your contributions. If necessary, a bot will remind
+you to accept the CLA when you open your pull request.
+
+## Setup
+
+[Fork][fork], then clone the repository:
+
+```
+mkdir -p $GOPATH/src/go.uber.org
+cd $GOPATH/src/go.uber.org
+git clone git@github.com:your_github_username/zap.git
+cd zap
+git remote add upstream https://github.com/uber-go/zap.git
+git fetch upstream
+```
+
+Make sure that the tests and the linters pass:
+
+```
+make test
+make lint
+```
+
+If you're not using the minor version of Go specified in the Makefile's
+`LINTABLE_MINOR_VERSIONS` variable, `make lint` doesn't do anything. This is
+fine, but it means that you'll only discover lint failures after you open your
+pull request.
+
+## Making Changes
+
+Start by creating a new branch for your changes:
+
+```
+cd $GOPATH/src/go.uber.org/zap
+git checkout master
+git fetch upstream
+git rebase upstream/master
+git checkout -b cool_new_feature
+```
+
+Make your changes, then ensure that `make lint` and `make test` still pass. If
+you're satisfied with your changes, push them to your fork.
+
+```
+git push origin cool_new_feature
+```
+
+Then use the GitHub UI to open a pull request.
+
+At this point, you're waiting on us to review your changes. We *try* to respond
+to issues and pull requests within a few business days, and we may suggest some
+improvements or alternatives. Once your changes are approved, one of the
+project maintainers will merge them.
+
+We're much more likely to approve your changes if you:
+
+* Add tests for new functionality.
+* Write a [good commit message][commit-message].
+* Maintain backward compatibility.
+
+[fork]: https://github.com/uber-go/zap/fork
+[open-issue]: https://github.com/uber-go/zap/issues/new
+[cla]: https://cla-assistant.io/uber-go/zap
+[commit-message]: http://tbaggery.com/2008/04/19/a-note-about-git-commit-messages.html
diff --git a/vendor/go.uber.org/zap/FAQ.md b/vendor/go.uber.org/zap/FAQ.md
new file mode 100644
index 0000000..b183b20
--- /dev/null
+++ b/vendor/go.uber.org/zap/FAQ.md
@@ -0,0 +1,164 @@
+# Frequently Asked Questions
+
+## Design
+
+### Why spend so much effort on logger performance?
+
+Of course, most applications won't notice the impact of a slow logger: they
+already take tens or hundreds of milliseconds for each operation, so an extra
+millisecond doesn't matter.
+
+On the other hand, why *not* make structured logging fast? The `SugaredLogger`
+isn't any harder to use than other logging packages, and the `Logger` makes
+structured logging possible in performance-sensitive contexts. Across a fleet
+of Go microservices, making each application even slightly more efficient adds
+up quickly.
+
+### Why aren't `Logger` and `SugaredLogger` interfaces?
+
+Unlike the familiar `io.Writer` and `http.Handler`, `Logger` and
+`SugaredLogger` interfaces would include *many* methods. As [Rob Pike points
+out][go-proverbs], "The bigger the interface, the weaker the abstraction."
+Interfaces are also rigid — *any* change requires releasing a new major
+version, since it breaks all third-party implementations.
+
+Making the `Logger` and `SugaredLogger` concrete types doesn't sacrifice much
+abstraction, and it lets us add methods without introducing breaking changes.
+Your applications should define and depend upon an interface that includes
+just the methods you use.
+
+### Why are some of my logs missing?
+
+Logs are dropped intentionally by zap when sampling is enabled. The production
+configuration (as returned by `NewProductionConfig()` enables sampling which will
+cause repeated logs within a second to be sampled. See more details on why sampling
+is enabled in [Why sample application logs](https://github.com/uber-go/zap/blob/master/FAQ.md#why-sample-application-logs).
+
+### Why sample application logs?
+
+Applications often experience runs of errors, either because of a bug or
+because of a misbehaving user. Logging errors is usually a good idea, but it
+can easily make this bad situation worse: not only is your application coping
+with a flood of errors, it's also spending extra CPU cycles and I/O logging
+those errors. Since writes are typically serialized, logging limits throughput
+when you need it most.
+
+Sampling fixes this problem by dropping repetitive log entries. Under normal
+conditions, your application writes out every entry. When similar entries are
+logged hundreds or thousands of times each second, though, zap begins dropping
+duplicates to preserve throughput.
+
+### Why do the structured logging APIs take a message in addition to fields?
+
+Subjectively, we find it helpful to accompany structured context with a brief
+description. This isn't critical during development, but it makes debugging
+and operating unfamiliar systems much easier.
+
+More concretely, zap's sampling algorithm uses the message to identify
+duplicate entries. In our experience, this is a practical middle ground
+between random sampling (which often drops the exact entry that you need while
+debugging) and hashing the complete entry (which is prohibitively expensive).
+
+### Why include package-global loggers?
+
+Since so many other logging packages include a global logger, many
+applications aren't designed to accept loggers as explicit parameters.
+Changing function signatures is often a breaking change, so zap includes
+global loggers to simplify migration.
+
+Avoid them where possible.
+
+### Why include dedicated Panic and Fatal log levels?
+
+In general, application code should handle errors gracefully instead of using
+`panic` or `os.Exit`. However, every rule has exceptions, and it's common to
+crash when an error is truly unrecoverable. To avoid losing any information
+— especially the reason for the crash — the logger must flush any
+buffered entries before the process exits.
+
+Zap makes this easy by offering `Panic` and `Fatal` logging methods that
+automatically flush before exiting. Of course, this doesn't guarantee that
+logs will never be lost, but it eliminates a common error.
+
+See the discussion in uber-go/zap#207 for more details.
+
+### What's `DPanic`?
+
+`DPanic` stands for "panic in development." In development, it logs at
+`PanicLevel`; otherwise, it logs at `ErrorLevel`. `DPanic` makes it easier to
+catch errors that are theoretically possible, but shouldn't actually happen,
+*without* crashing in production.
+
+If you've ever written code like this, you need `DPanic`:
+
+```go
+if err != nil {
+ panic(fmt.Sprintf("shouldn't ever get here: %v", err))
+}
+```
+
+## Installation
+
+### What does the error `expects import "go.uber.org/zap"` mean?
+
+Either zap was installed incorrectly or you're referencing the wrong package
+name in your code.
+
+Zap's source code happens to be hosted on GitHub, but the [import
+path][import-path] is `go.uber.org/zap`. This gives us, the project
+maintainers, the freedom to move the source code if necessary. However, it
+means that you need to take a little care when installing and using the
+package.
+
+If you follow two simple rules, everything should work: install zap with `go
+get -u go.uber.org/zap`, and always import it in your code with `import
+"go.uber.org/zap"`. Your code shouldn't contain *any* references to
+`github.com/uber-go/zap`.
+
+## Usage
+
+### Does zap support log rotation?
+
+Zap doesn't natively support rotating log files, since we prefer to leave this
+to an external program like `logrotate`.
+
+However, it's easy to integrate a log rotation package like
+[`gopkg.in/natefinch/lumberjack.v2`][lumberjack] as a `zapcore.WriteSyncer`.
+
+```go
+// lumberjack.Logger is already safe for concurrent use, so we don't need to
+// lock it.
+w := zapcore.AddSync(&lumberjack.Logger{
+ Filename: "/var/log/myapp/foo.log",
+ MaxSize: 500, // megabytes
+ MaxBackups: 3,
+ MaxAge: 28, // days
+})
+core := zapcore.NewCore(
+ zapcore.NewJSONEncoder(zap.NewProductionEncoderConfig()),
+ w,
+ zap.InfoLevel,
+)
+logger := zap.New(core)
+```
+
+## Extensions
+
+We'd love to support every logging need within zap itself, but we're only
+familiar with a handful of log ingestion systems, flag-parsing packages, and
+the like. Rather than merging code that we can't effectively debug and
+support, we'd rather grow an ecosystem of zap extensions.
+
+We're aware of the following extensions, but haven't used them ourselves:
+
+| Package | Integration |
+| --- | --- |
+| `github.com/tchap/zapext` | Sentry, syslog |
+| `github.com/fgrosse/zaptest` | Ginkgo |
+| `github.com/blendle/zapdriver` | Stackdriver |
+| `github.com/moul/zapgorm` | Gorm |
+| `github.com/moul/zapfilter` | Advanced filtering rules |
+
+[go-proverbs]: https://go-proverbs.github.io/
+[import-path]: https://golang.org/cmd/go/#hdr-Remote_import_paths
+[lumberjack]: https://godoc.org/gopkg.in/natefinch/lumberjack.v2
diff --git a/vendor/go.uber.org/zap/LICENSE.txt b/vendor/go.uber.org/zap/LICENSE.txt
new file mode 100644
index 0000000..6652bed
--- /dev/null
+++ b/vendor/go.uber.org/zap/LICENSE.txt
@@ -0,0 +1,19 @@
+Copyright (c) 2016-2017 Uber Technologies, Inc.
+
+Permission is hereby granted, free of charge, to any person obtaining a copy
+of this software and associated documentation files (the "Software"), to deal
+in the Software without restriction, including without limitation the rights
+to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+copies of the Software, and to permit persons to whom the Software is
+furnished to do so, subject to the following conditions:
+
+The above copyright notice and this permission notice shall be included in
+all copies or substantial portions of the Software.
+
+THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+THE SOFTWARE.
diff --git a/vendor/go.uber.org/zap/Makefile b/vendor/go.uber.org/zap/Makefile
new file mode 100644
index 0000000..9b1bc3b
--- /dev/null
+++ b/vendor/go.uber.org/zap/Makefile
@@ -0,0 +1,73 @@
+export GOBIN ?= $(shell pwd)/bin
+
+GOLINT = $(GOBIN)/golint
+STATICCHECK = $(GOBIN)/staticcheck
+BENCH_FLAGS ?= -cpuprofile=cpu.pprof -memprofile=mem.pprof -benchmem
+
+# Directories containing independent Go modules.
+#
+# We track coverage only for the main module.
+MODULE_DIRS = . ./benchmarks ./zapgrpc/internal/test
+
+# Many Go tools take file globs or directories as arguments instead of packages.
+GO_FILES := $(shell \
+ find . '(' -path '*/.*' -o -path './vendor' ')' -prune \
+ -o -name '*.go' -print | cut -b3-)
+
+.PHONY: all
+all: lint test
+
+.PHONY: lint
+lint: $(GOLINT) $(STATICCHECK)
+ @rm -rf lint.log
+ @echo "Checking formatting..."
+ @gofmt -d -s $(GO_FILES) 2>&1 | tee lint.log
+ @echo "Checking vet..."
+ @$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go vet ./... 2>&1) &&) true | tee -a lint.log
+ @echo "Checking lint..."
+ @$(foreach dir,$(MODULE_DIRS),(cd $(dir) && $(GOLINT) ./... 2>&1) &&) true | tee -a lint.log
+ @echo "Checking staticcheck..."
+ @$(foreach dir,$(MODULE_DIRS),(cd $(dir) && $(STATICCHECK) ./... 2>&1) &&) true | tee -a lint.log
+ @echo "Checking for unresolved FIXMEs..."
+ @git grep -i fixme | grep -v -e Makefile | tee -a lint.log
+ @echo "Checking for license headers..."
+ @./checklicense.sh | tee -a lint.log
+ @[ ! -s lint.log ]
+ @echo "Checking 'go mod tidy'..."
+ @make tidy
+ @if ! git diff --quiet; then \
+ echo "'go mod tidy' resulted in changes or working tree is dirty:"; \
+ git --no-pager diff; \
+ fi
+
+$(GOLINT):
+ cd tools && go install golang.org/x/lint/golint
+
+$(STATICCHECK):
+ cd tools && go install honnef.co/go/tools/cmd/staticcheck
+
+.PHONY: test
+test:
+ @$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go test -race ./...) &&) true
+
+.PHONY: cover
+cover:
+ go test -race -coverprofile=cover.out -coverpkg=./... ./...
+ go tool cover -html=cover.out -o cover.html
+
+.PHONY: bench
+BENCH ?= .
+bench:
+ @$(foreach dir,$(MODULE_DIRS), ( \
+ cd $(dir) && \
+ go list ./... | xargs -n1 go test -bench=$(BENCH) -run="^$$" $(BENCH_FLAGS) \
+ ) &&) true
+
+.PHONY: updatereadme
+updatereadme:
+ rm -f README.md
+ cat .readme.tmpl | go run internal/readme/readme.go > README.md
+
+.PHONY: tidy
+tidy:
+ @$(foreach dir,$(MODULE_DIRS),(cd $(dir) && go mod tidy) &&) true
diff --git a/vendor/go.uber.org/zap/README.md b/vendor/go.uber.org/zap/README.md
new file mode 100644
index 0000000..1e64d6c
--- /dev/null
+++ b/vendor/go.uber.org/zap/README.md
@@ -0,0 +1,134 @@
+# :zap: zap [![GoDoc][doc-img]][doc] [![Build Status][ci-img]][ci] [![Coverage Status][cov-img]][cov]
+
+Blazing fast, structured, leveled logging in Go.
+
+## Installation
+
+`go get -u go.uber.org/zap`
+
+Note that zap only supports the two most recent minor versions of Go.
+
+## Quick Start
+
+In contexts where performance is nice, but not critical, use the
+`SugaredLogger`. It's 4-10x faster than other structured logging
+packages and includes both structured and `printf`-style APIs.
+
+```go
+logger, _ := zap.NewProduction()
+defer logger.Sync() // flushes buffer, if any
+sugar := logger.Sugar()
+sugar.Infow("failed to fetch URL",
+ // Structured context as loosely typed key-value pairs.
+ "url", url,
+ "attempt", 3,
+ "backoff", time.Second,
+)
+sugar.Infof("Failed to fetch URL: %s", url)
+```
+
+When performance and type safety are critical, use the `Logger`. It's even
+faster than the `SugaredLogger` and allocates far less, but it only supports
+structured logging.
+
+```go
+logger, _ := zap.NewProduction()
+defer logger.Sync()
+logger.Info("failed to fetch URL",
+ // Structured context as strongly typed Field values.
+ zap.String("url", url),
+ zap.Int("attempt", 3),
+ zap.Duration("backoff", time.Second),
+)
+```
+
+See the [documentation][doc] and [FAQ](FAQ.md) for more details.
+
+## Performance
+
+For applications that log in the hot path, reflection-based serialization and
+string formatting are prohibitively expensive — they're CPU-intensive
+and make many small allocations. Put differently, using `encoding/json` and
+`fmt.Fprintf` to log tons of `interface{}`s makes your application slow.
+
+Zap takes a different approach. It includes a reflection-free, zero-allocation
+JSON encoder, and the base `Logger` strives to avoid serialization overhead
+and allocations wherever possible. By building the high-level `SugaredLogger`
+on that foundation, zap lets users *choose* when they need to count every
+allocation and when they'd prefer a more familiar, loosely typed API.
+
+As measured by its own [benchmarking suite][], not only is zap more performant
+than comparable structured logging packages — it's also faster than the
+standard library. Like all benchmarks, take these with a grain of salt.<sup
+id="anchor-versions">[1](#footnote-versions)</sup>
+
+Log a message and 10 fields:
+
+| Package | Time | Time % to zap | Objects Allocated |
+| :------ | :--: | :-----------: | :---------------: |
+| :zap: zap | 862 ns/op | +0% | 5 allocs/op
+| :zap: zap (sugared) | 1250 ns/op | +45% | 11 allocs/op
+| zerolog | 4021 ns/op | +366% | 76 allocs/op
+| go-kit | 4542 ns/op | +427% | 105 allocs/op
+| apex/log | 26785 ns/op | +3007% | 115 allocs/op
+| logrus | 29501 ns/op | +3322% | 125 allocs/op
+| log15 | 29906 ns/op | +3369% | 122 allocs/op
+
+Log a message with a logger that already has 10 fields of context:
+
+| Package | Time | Time % to zap | Objects Allocated |
+| :------ | :--: | :-----------: | :---------------: |
+| :zap: zap | 126 ns/op | +0% | 0 allocs/op
+| :zap: zap (sugared) | 187 ns/op | +48% | 2 allocs/op
+| zerolog | 88 ns/op | -30% | 0 allocs/op
+| go-kit | 5087 ns/op | +3937% | 103 allocs/op
+| log15 | 18548 ns/op | +14621% | 73 allocs/op
+| apex/log | 26012 ns/op | +20544% | 104 allocs/op
+| logrus | 27236 ns/op | +21516% | 113 allocs/op
+
+Log a static string, without any context or `printf`-style templating:
+
+| Package | Time | Time % to zap | Objects Allocated |
+| :------ | :--: | :-----------: | :---------------: |
+| :zap: zap | 118 ns/op | +0% | 0 allocs/op
+| :zap: zap (sugared) | 191 ns/op | +62% | 2 allocs/op
+| zerolog | 93 ns/op | -21% | 0 allocs/op
+| go-kit | 280 ns/op | +137% | 11 allocs/op
+| standard library | 499 ns/op | +323% | 2 allocs/op
+| apex/log | 1990 ns/op | +1586% | 10 allocs/op
+| logrus | 3129 ns/op | +2552% | 24 allocs/op
+| log15 | 3887 ns/op | +3194% | 23 allocs/op
+
+## Development Status: Stable
+
+All APIs are finalized, and no breaking changes will be made in the 1.x series
+of releases. Users of semver-aware dependency management systems should pin
+zap to `^1`.
+
+## Contributing
+
+We encourage and support an active, healthy community of contributors —
+including you! Details are in the [contribution guide](CONTRIBUTING.md) and
+the [code of conduct](CODE_OF_CONDUCT.md). The zap maintainers keep an eye on
+issues and pull requests, but you can also report any negative conduct to
+oss-conduct@uber.com. That email list is a private, safe space; even the zap
+maintainers don't have access, so don't hesitate to hold us to a high
+standard.
+
+<hr>
+
+Released under the [MIT License](LICENSE.txt).
+
+<sup id="footnote-versions">1</sup> In particular, keep in mind that we may be
+benchmarking against slightly older versions of other packages. Versions are
+pinned in the [benchmarks/go.mod][] file. [↩](#anchor-versions)
+
+[doc-img]: https://pkg.go.dev/badge/go.uber.org/zap
+[doc]: https://pkg.go.dev/go.uber.org/zap
+[ci-img]: https://github.com/uber-go/zap/actions/workflows/go.yml/badge.svg
+[ci]: https://github.com/uber-go/zap/actions/workflows/go.yml
+[cov-img]: https://codecov.io/gh/uber-go/zap/branch/master/graph/badge.svg
+[cov]: https://codecov.io/gh/uber-go/zap
+[benchmarking suite]: https://github.com/uber-go/zap/tree/master/benchmarks
+[benchmarks/go.mod]: https://github.com/uber-go/zap/blob/master/benchmarks/go.mod
+
diff --git a/vendor/go.uber.org/zap/array.go b/vendor/go.uber.org/zap/array.go
new file mode 100644
index 0000000..5be3704
--- /dev/null
+++ b/vendor/go.uber.org/zap/array.go
@@ -0,0 +1,320 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "time"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// Array constructs a field with the given key and ArrayMarshaler. It provides
+// a flexible, but still type-safe and efficient, way to add array-like types
+// to the logging context. The struct's MarshalLogArray method is called lazily.
+func Array(key string, val zapcore.ArrayMarshaler) Field {
+ return Field{Key: key, Type: zapcore.ArrayMarshalerType, Interface: val}
+}
+
+// Bools constructs a field that carries a slice of bools.
+func Bools(key string, bs []bool) Field {
+ return Array(key, bools(bs))
+}
+
+// ByteStrings constructs a field that carries a slice of []byte, each of which
+// must be UTF-8 encoded text.
+func ByteStrings(key string, bss [][]byte) Field {
+ return Array(key, byteStringsArray(bss))
+}
+
+// Complex128s constructs a field that carries a slice of complex numbers.
+func Complex128s(key string, nums []complex128) Field {
+ return Array(key, complex128s(nums))
+}
+
+// Complex64s constructs a field that carries a slice of complex numbers.
+func Complex64s(key string, nums []complex64) Field {
+ return Array(key, complex64s(nums))
+}
+
+// Durations constructs a field that carries a slice of time.Durations.
+func Durations(key string, ds []time.Duration) Field {
+ return Array(key, durations(ds))
+}
+
+// Float64s constructs a field that carries a slice of floats.
+func Float64s(key string, nums []float64) Field {
+ return Array(key, float64s(nums))
+}
+
+// Float32s constructs a field that carries a slice of floats.
+func Float32s(key string, nums []float32) Field {
+ return Array(key, float32s(nums))
+}
+
+// Ints constructs a field that carries a slice of integers.
+func Ints(key string, nums []int) Field {
+ return Array(key, ints(nums))
+}
+
+// Int64s constructs a field that carries a slice of integers.
+func Int64s(key string, nums []int64) Field {
+ return Array(key, int64s(nums))
+}
+
+// Int32s constructs a field that carries a slice of integers.
+func Int32s(key string, nums []int32) Field {
+ return Array(key, int32s(nums))
+}
+
+// Int16s constructs a field that carries a slice of integers.
+func Int16s(key string, nums []int16) Field {
+ return Array(key, int16s(nums))
+}
+
+// Int8s constructs a field that carries a slice of integers.
+func Int8s(key string, nums []int8) Field {
+ return Array(key, int8s(nums))
+}
+
+// Strings constructs a field that carries a slice of strings.
+func Strings(key string, ss []string) Field {
+ return Array(key, stringArray(ss))
+}
+
+// Times constructs a field that carries a slice of time.Times.
+func Times(key string, ts []time.Time) Field {
+ return Array(key, times(ts))
+}
+
+// Uints constructs a field that carries a slice of unsigned integers.
+func Uints(key string, nums []uint) Field {
+ return Array(key, uints(nums))
+}
+
+// Uint64s constructs a field that carries a slice of unsigned integers.
+func Uint64s(key string, nums []uint64) Field {
+ return Array(key, uint64s(nums))
+}
+
+// Uint32s constructs a field that carries a slice of unsigned integers.
+func Uint32s(key string, nums []uint32) Field {
+ return Array(key, uint32s(nums))
+}
+
+// Uint16s constructs a field that carries a slice of unsigned integers.
+func Uint16s(key string, nums []uint16) Field {
+ return Array(key, uint16s(nums))
+}
+
+// Uint8s constructs a field that carries a slice of unsigned integers.
+func Uint8s(key string, nums []uint8) Field {
+ return Array(key, uint8s(nums))
+}
+
+// Uintptrs constructs a field that carries a slice of pointer addresses.
+func Uintptrs(key string, us []uintptr) Field {
+ return Array(key, uintptrs(us))
+}
+
+// Errors constructs a field that carries a slice of errors.
+func Errors(key string, errs []error) Field {
+ return Array(key, errArray(errs))
+}
+
+type bools []bool
+
+func (bs bools) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range bs {
+ arr.AppendBool(bs[i])
+ }
+ return nil
+}
+
+type byteStringsArray [][]byte
+
+func (bss byteStringsArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range bss {
+ arr.AppendByteString(bss[i])
+ }
+ return nil
+}
+
+type complex128s []complex128
+
+func (nums complex128s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendComplex128(nums[i])
+ }
+ return nil
+}
+
+type complex64s []complex64
+
+func (nums complex64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendComplex64(nums[i])
+ }
+ return nil
+}
+
+type durations []time.Duration
+
+func (ds durations) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range ds {
+ arr.AppendDuration(ds[i])
+ }
+ return nil
+}
+
+type float64s []float64
+
+func (nums float64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendFloat64(nums[i])
+ }
+ return nil
+}
+
+type float32s []float32
+
+func (nums float32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendFloat32(nums[i])
+ }
+ return nil
+}
+
+type ints []int
+
+func (nums ints) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendInt(nums[i])
+ }
+ return nil
+}
+
+type int64s []int64
+
+func (nums int64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendInt64(nums[i])
+ }
+ return nil
+}
+
+type int32s []int32
+
+func (nums int32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendInt32(nums[i])
+ }
+ return nil
+}
+
+type int16s []int16
+
+func (nums int16s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendInt16(nums[i])
+ }
+ return nil
+}
+
+type int8s []int8
+
+func (nums int8s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendInt8(nums[i])
+ }
+ return nil
+}
+
+type stringArray []string
+
+func (ss stringArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range ss {
+ arr.AppendString(ss[i])
+ }
+ return nil
+}
+
+type times []time.Time
+
+func (ts times) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range ts {
+ arr.AppendTime(ts[i])
+ }
+ return nil
+}
+
+type uints []uint
+
+func (nums uints) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUint(nums[i])
+ }
+ return nil
+}
+
+type uint64s []uint64
+
+func (nums uint64s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUint64(nums[i])
+ }
+ return nil
+}
+
+type uint32s []uint32
+
+func (nums uint32s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUint32(nums[i])
+ }
+ return nil
+}
+
+type uint16s []uint16
+
+func (nums uint16s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUint16(nums[i])
+ }
+ return nil
+}
+
+type uint8s []uint8
+
+func (nums uint8s) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUint8(nums[i])
+ }
+ return nil
+}
+
+type uintptrs []uintptr
+
+func (nums uintptrs) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range nums {
+ arr.AppendUintptr(nums[i])
+ }
+ return nil
+}
diff --git a/vendor/go.uber.org/zap/buffer/buffer.go b/vendor/go.uber.org/zap/buffer/buffer.go
new file mode 100644
index 0000000..9e929cd
--- /dev/null
+++ b/vendor/go.uber.org/zap/buffer/buffer.go
@@ -0,0 +1,141 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package buffer provides a thin wrapper around a byte slice. Unlike the
+// standard library's bytes.Buffer, it supports a portion of the strconv
+// package's zero-allocation formatters.
+package buffer // import "go.uber.org/zap/buffer"
+
+import (
+ "strconv"
+ "time"
+)
+
+const _size = 1024 // by default, create 1 KiB buffers
+
+// Buffer is a thin wrapper around a byte slice. It's intended to be pooled, so
+// the only way to construct one is via a Pool.
+type Buffer struct {
+ bs []byte
+ pool Pool
+}
+
+// AppendByte writes a single byte to the Buffer.
+func (b *Buffer) AppendByte(v byte) {
+ b.bs = append(b.bs, v)
+}
+
+// AppendString writes a string to the Buffer.
+func (b *Buffer) AppendString(s string) {
+ b.bs = append(b.bs, s...)
+}
+
+// AppendInt appends an integer to the underlying buffer (assuming base 10).
+func (b *Buffer) AppendInt(i int64) {
+ b.bs = strconv.AppendInt(b.bs, i, 10)
+}
+
+// AppendTime appends the time formatted using the specified layout.
+func (b *Buffer) AppendTime(t time.Time, layout string) {
+ b.bs = t.AppendFormat(b.bs, layout)
+}
+
+// AppendUint appends an unsigned integer to the underlying buffer (assuming
+// base 10).
+func (b *Buffer) AppendUint(i uint64) {
+ b.bs = strconv.AppendUint(b.bs, i, 10)
+}
+
+// AppendBool appends a bool to the underlying buffer.
+func (b *Buffer) AppendBool(v bool) {
+ b.bs = strconv.AppendBool(b.bs, v)
+}
+
+// AppendFloat appends a float to the underlying buffer. It doesn't quote NaN
+// or +/- Inf.
+func (b *Buffer) AppendFloat(f float64, bitSize int) {
+ b.bs = strconv.AppendFloat(b.bs, f, 'f', -1, bitSize)
+}
+
+// Len returns the length of the underlying byte slice.
+func (b *Buffer) Len() int {
+ return len(b.bs)
+}
+
+// Cap returns the capacity of the underlying byte slice.
+func (b *Buffer) Cap() int {
+ return cap(b.bs)
+}
+
+// Bytes returns a mutable reference to the underlying byte slice.
+func (b *Buffer) Bytes() []byte {
+ return b.bs
+}
+
+// String returns a string copy of the underlying byte slice.
+func (b *Buffer) String() string {
+ return string(b.bs)
+}
+
+// Reset resets the underlying byte slice. Subsequent writes re-use the slice's
+// backing array.
+func (b *Buffer) Reset() {
+ b.bs = b.bs[:0]
+}
+
+// Write implements io.Writer.
+func (b *Buffer) Write(bs []byte) (int, error) {
+ b.bs = append(b.bs, bs...)
+ return len(bs), nil
+}
+
+// WriteByte writes a single byte to the Buffer.
+//
+// Error returned is always nil, function signature is compatible
+// with bytes.Buffer and bufio.Writer
+func (b *Buffer) WriteByte(v byte) error {
+ b.AppendByte(v)
+ return nil
+}
+
+// WriteString writes a string to the Buffer.
+//
+// Error returned is always nil, function signature is compatible
+// with bytes.Buffer and bufio.Writer
+func (b *Buffer) WriteString(s string) (int, error) {
+ b.AppendString(s)
+ return len(s), nil
+}
+
+// TrimNewline trims any final "\n" byte from the end of the buffer.
+func (b *Buffer) TrimNewline() {
+ if i := len(b.bs) - 1; i >= 0 {
+ if b.bs[i] == '\n' {
+ b.bs = b.bs[:i]
+ }
+ }
+}
+
+// Free returns the Buffer to its Pool.
+//
+// Callers must not retain references to the Buffer after calling Free.
+func (b *Buffer) Free() {
+ b.pool.put(b)
+}
diff --git a/vendor/go.uber.org/zap/buffer/pool.go b/vendor/go.uber.org/zap/buffer/pool.go
new file mode 100644
index 0000000..8fb3e20
--- /dev/null
+++ b/vendor/go.uber.org/zap/buffer/pool.go
@@ -0,0 +1,49 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package buffer
+
+import "sync"
+
+// A Pool is a type-safe wrapper around a sync.Pool.
+type Pool struct {
+ p *sync.Pool
+}
+
+// NewPool constructs a new Pool.
+func NewPool() Pool {
+ return Pool{p: &sync.Pool{
+ New: func() interface{} {
+ return &Buffer{bs: make([]byte, 0, _size)}
+ },
+ }}
+}
+
+// Get retrieves a Buffer from the pool, creating one if necessary.
+func (p Pool) Get() *Buffer {
+ buf := p.p.Get().(*Buffer)
+ buf.Reset()
+ buf.pool = p
+ return buf
+}
+
+func (p Pool) put(buf *Buffer) {
+ p.p.Put(buf)
+}
diff --git a/vendor/go.uber.org/zap/checklicense.sh b/vendor/go.uber.org/zap/checklicense.sh
new file mode 100644
index 0000000..345ac8b
--- /dev/null
+++ b/vendor/go.uber.org/zap/checklicense.sh
@@ -0,0 +1,17 @@
+#!/bin/bash -e
+
+ERROR_COUNT=0
+while read -r file
+do
+ case "$(head -1 "${file}")" in
+ *"Copyright (c) "*" Uber Technologies, Inc.")
+ # everything's cool
+ ;;
+ *)
+ echo "$file is missing license header."
+ (( ERROR_COUNT++ ))
+ ;;
+ esac
+done < <(git ls-files "*\.go")
+
+exit $ERROR_COUNT
diff --git a/vendor/go.uber.org/zap/config.go b/vendor/go.uber.org/zap/config.go
new file mode 100644
index 0000000..55637fb
--- /dev/null
+++ b/vendor/go.uber.org/zap/config.go
@@ -0,0 +1,264 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+ "sort"
+ "time"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// SamplingConfig sets a sampling strategy for the logger. Sampling caps the
+// global CPU and I/O load that logging puts on your process while attempting
+// to preserve a representative subset of your logs.
+//
+// If specified, the Sampler will invoke the Hook after each decision.
+//
+// Values configured here are per-second. See zapcore.NewSamplerWithOptions for
+// details.
+type SamplingConfig struct {
+ Initial int `json:"initial" yaml:"initial"`
+ Thereafter int `json:"thereafter" yaml:"thereafter"`
+ Hook func(zapcore.Entry, zapcore.SamplingDecision) `json:"-" yaml:"-"`
+}
+
+// Config offers a declarative way to construct a logger. It doesn't do
+// anything that can't be done with New, Options, and the various
+// zapcore.WriteSyncer and zapcore.Core wrappers, but it's a simpler way to
+// toggle common options.
+//
+// Note that Config intentionally supports only the most common options. More
+// unusual logging setups (logging to network connections or message queues,
+// splitting output between multiple files, etc.) are possible, but require
+// direct use of the zapcore package. For sample code, see the package-level
+// BasicConfiguration and AdvancedConfiguration examples.
+//
+// For an example showing runtime log level changes, see the documentation for
+// AtomicLevel.
+type Config struct {
+ // Level is the minimum enabled logging level. Note that this is a dynamic
+ // level, so calling Config.Level.SetLevel will atomically change the log
+ // level of all loggers descended from this config.
+ Level AtomicLevel `json:"level" yaml:"level"`
+ // Development puts the logger in development mode, which changes the
+ // behavior of DPanicLevel and takes stacktraces more liberally.
+ Development bool `json:"development" yaml:"development"`
+ // DisableCaller stops annotating logs with the calling function's file
+ // name and line number. By default, all logs are annotated.
+ DisableCaller bool `json:"disableCaller" yaml:"disableCaller"`
+ // DisableStacktrace completely disables automatic stacktrace capturing. By
+ // default, stacktraces are captured for WarnLevel and above logs in
+ // development and ErrorLevel and above in production.
+ DisableStacktrace bool `json:"disableStacktrace" yaml:"disableStacktrace"`
+ // Sampling sets a sampling policy. A nil SamplingConfig disables sampling.
+ Sampling *SamplingConfig `json:"sampling" yaml:"sampling"`
+ // Encoding sets the logger's encoding. Valid values are "json" and
+ // "console", as well as any third-party encodings registered via
+ // RegisterEncoder.
+ Encoding string `json:"encoding" yaml:"encoding"`
+ // EncoderConfig sets options for the chosen encoder. See
+ // zapcore.EncoderConfig for details.
+ EncoderConfig zapcore.EncoderConfig `json:"encoderConfig" yaml:"encoderConfig"`
+ // OutputPaths is a list of URLs or file paths to write logging output to.
+ // See Open for details.
+ OutputPaths []string `json:"outputPaths" yaml:"outputPaths"`
+ // ErrorOutputPaths is a list of URLs to write internal logger errors to.
+ // The default is standard error.
+ //
+ // Note that this setting only affects internal errors; for sample code that
+ // sends error-level logs to a different location from info- and debug-level
+ // logs, see the package-level AdvancedConfiguration example.
+ ErrorOutputPaths []string `json:"errorOutputPaths" yaml:"errorOutputPaths"`
+ // InitialFields is a collection of fields to add to the root logger.
+ InitialFields map[string]interface{} `json:"initialFields" yaml:"initialFields"`
+}
+
+// NewProductionEncoderConfig returns an opinionated EncoderConfig for
+// production environments.
+func NewProductionEncoderConfig() zapcore.EncoderConfig {
+ return zapcore.EncoderConfig{
+ TimeKey: "ts",
+ LevelKey: "level",
+ NameKey: "logger",
+ CallerKey: "caller",
+ FunctionKey: zapcore.OmitKey,
+ MessageKey: "msg",
+ StacktraceKey: "stacktrace",
+ LineEnding: zapcore.DefaultLineEnding,
+ EncodeLevel: zapcore.LowercaseLevelEncoder,
+ EncodeTime: zapcore.EpochTimeEncoder,
+ EncodeDuration: zapcore.SecondsDurationEncoder,
+ EncodeCaller: zapcore.ShortCallerEncoder,
+ }
+}
+
+// NewProductionConfig is a reasonable production logging configuration.
+// Logging is enabled at InfoLevel and above.
+//
+// It uses a JSON encoder, writes to standard error, and enables sampling.
+// Stacktraces are automatically included on logs of ErrorLevel and above.
+func NewProductionConfig() Config {
+ return Config{
+ Level: NewAtomicLevelAt(InfoLevel),
+ Development: false,
+ Sampling: &SamplingConfig{
+ Initial: 100,
+ Thereafter: 100,
+ },
+ Encoding: "json",
+ EncoderConfig: NewProductionEncoderConfig(),
+ OutputPaths: []string{"stderr"},
+ ErrorOutputPaths: []string{"stderr"},
+ }
+}
+
+// NewDevelopmentEncoderConfig returns an opinionated EncoderConfig for
+// development environments.
+func NewDevelopmentEncoderConfig() zapcore.EncoderConfig {
+ return zapcore.EncoderConfig{
+ // Keys can be anything except the empty string.
+ TimeKey: "T",
+ LevelKey: "L",
+ NameKey: "N",
+ CallerKey: "C",
+ FunctionKey: zapcore.OmitKey,
+ MessageKey: "M",
+ StacktraceKey: "S",
+ LineEnding: zapcore.DefaultLineEnding,
+ EncodeLevel: zapcore.CapitalLevelEncoder,
+ EncodeTime: zapcore.ISO8601TimeEncoder,
+ EncodeDuration: zapcore.StringDurationEncoder,
+ EncodeCaller: zapcore.ShortCallerEncoder,
+ }
+}
+
+// NewDevelopmentConfig is a reasonable development logging configuration.
+// Logging is enabled at DebugLevel and above.
+//
+// It enables development mode (which makes DPanicLevel logs panic), uses a
+// console encoder, writes to standard error, and disables sampling.
+// Stacktraces are automatically included on logs of WarnLevel and above.
+func NewDevelopmentConfig() Config {
+ return Config{
+ Level: NewAtomicLevelAt(DebugLevel),
+ Development: true,
+ Encoding: "console",
+ EncoderConfig: NewDevelopmentEncoderConfig(),
+ OutputPaths: []string{"stderr"},
+ ErrorOutputPaths: []string{"stderr"},
+ }
+}
+
+// Build constructs a logger from the Config and Options.
+func (cfg Config) Build(opts ...Option) (*Logger, error) {
+ enc, err := cfg.buildEncoder()
+ if err != nil {
+ return nil, err
+ }
+
+ sink, errSink, err := cfg.openSinks()
+ if err != nil {
+ return nil, err
+ }
+
+ if cfg.Level == (AtomicLevel{}) {
+ return nil, fmt.Errorf("missing Level")
+ }
+
+ log := New(
+ zapcore.NewCore(enc, sink, cfg.Level),
+ cfg.buildOptions(errSink)...,
+ )
+ if len(opts) > 0 {
+ log = log.WithOptions(opts...)
+ }
+ return log, nil
+}
+
+func (cfg Config) buildOptions(errSink zapcore.WriteSyncer) []Option {
+ opts := []Option{ErrorOutput(errSink)}
+
+ if cfg.Development {
+ opts = append(opts, Development())
+ }
+
+ if !cfg.DisableCaller {
+ opts = append(opts, AddCaller())
+ }
+
+ stackLevel := ErrorLevel
+ if cfg.Development {
+ stackLevel = WarnLevel
+ }
+ if !cfg.DisableStacktrace {
+ opts = append(opts, AddStacktrace(stackLevel))
+ }
+
+ if scfg := cfg.Sampling; scfg != nil {
+ opts = append(opts, WrapCore(func(core zapcore.Core) zapcore.Core {
+ var samplerOpts []zapcore.SamplerOption
+ if scfg.Hook != nil {
+ samplerOpts = append(samplerOpts, zapcore.SamplerHook(scfg.Hook))
+ }
+ return zapcore.NewSamplerWithOptions(
+ core,
+ time.Second,
+ cfg.Sampling.Initial,
+ cfg.Sampling.Thereafter,
+ samplerOpts...,
+ )
+ }))
+ }
+
+ if len(cfg.InitialFields) > 0 {
+ fs := make([]Field, 0, len(cfg.InitialFields))
+ keys := make([]string, 0, len(cfg.InitialFields))
+ for k := range cfg.InitialFields {
+ keys = append(keys, k)
+ }
+ sort.Strings(keys)
+ for _, k := range keys {
+ fs = append(fs, Any(k, cfg.InitialFields[k]))
+ }
+ opts = append(opts, Fields(fs...))
+ }
+
+ return opts
+}
+
+func (cfg Config) openSinks() (zapcore.WriteSyncer, zapcore.WriteSyncer, error) {
+ sink, closeOut, err := Open(cfg.OutputPaths...)
+ if err != nil {
+ return nil, nil, err
+ }
+ errSink, _, err := Open(cfg.ErrorOutputPaths...)
+ if err != nil {
+ closeOut()
+ return nil, nil, err
+ }
+ return sink, errSink, nil
+}
+
+func (cfg Config) buildEncoder() (zapcore.Encoder, error) {
+ return newEncoder(cfg.Encoding, cfg.EncoderConfig)
+}
diff --git a/vendor/go.uber.org/zap/doc.go b/vendor/go.uber.org/zap/doc.go
new file mode 100644
index 0000000..8638dd1
--- /dev/null
+++ b/vendor/go.uber.org/zap/doc.go
@@ -0,0 +1,113 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package zap provides fast, structured, leveled logging.
+//
+// For applications that log in the hot path, reflection-based serialization
+// and string formatting are prohibitively expensive - they're CPU-intensive
+// and make many small allocations. Put differently, using json.Marshal and
+// fmt.Fprintf to log tons of interface{} makes your application slow.
+//
+// Zap takes a different approach. It includes a reflection-free,
+// zero-allocation JSON encoder, and the base Logger strives to avoid
+// serialization overhead and allocations wherever possible. By building the
+// high-level SugaredLogger on that foundation, zap lets users choose when
+// they need to count every allocation and when they'd prefer a more familiar,
+// loosely typed API.
+//
+// Choosing a Logger
+//
+// In contexts where performance is nice, but not critical, use the
+// SugaredLogger. It's 4-10x faster than other structured logging packages and
+// supports both structured and printf-style logging. Like log15 and go-kit,
+// the SugaredLogger's structured logging APIs are loosely typed and accept a
+// variadic number of key-value pairs. (For more advanced use cases, they also
+// accept strongly typed fields - see the SugaredLogger.With documentation for
+// details.)
+// sugar := zap.NewExample().Sugar()
+// defer sugar.Sync()
+// sugar.Infow("failed to fetch URL",
+// "url", "http://example.com",
+// "attempt", 3,
+// "backoff", time.Second,
+// )
+// sugar.Infof("failed to fetch URL: %s", "http://example.com")
+//
+// By default, loggers are unbuffered. However, since zap's low-level APIs
+// allow buffering, calling Sync before letting your process exit is a good
+// habit.
+//
+// In the rare contexts where every microsecond and every allocation matter,
+// use the Logger. It's even faster than the SugaredLogger and allocates far
+// less, but it only supports strongly-typed, structured logging.
+// logger := zap.NewExample()
+// defer logger.Sync()
+// logger.Info("failed to fetch URL",
+// zap.String("url", "http://example.com"),
+// zap.Int("attempt", 3),
+// zap.Duration("backoff", time.Second),
+// )
+//
+// Choosing between the Logger and SugaredLogger doesn't need to be an
+// application-wide decision: converting between the two is simple and
+// inexpensive.
+// logger := zap.NewExample()
+// defer logger.Sync()
+// sugar := logger.Sugar()
+// plain := sugar.Desugar()
+//
+// Configuring Zap
+//
+// The simplest way to build a Logger is to use zap's opinionated presets:
+// NewExample, NewProduction, and NewDevelopment. These presets build a logger
+// with a single function call:
+// logger, err := zap.NewProduction()
+// if err != nil {
+// log.Fatalf("can't initialize zap logger: %v", err)
+// }
+// defer logger.Sync()
+//
+// Presets are fine for small projects, but larger projects and organizations
+// naturally require a bit more customization. For most users, zap's Config
+// struct strikes the right balance between flexibility and convenience. See
+// the package-level BasicConfiguration example for sample code.
+//
+// More unusual configurations (splitting output between files, sending logs
+// to a message queue, etc.) are possible, but require direct use of
+// go.uber.org/zap/zapcore. See the package-level AdvancedConfiguration
+// example for sample code.
+//
+// Extending Zap
+//
+// The zap package itself is a relatively thin wrapper around the interfaces
+// in go.uber.org/zap/zapcore. Extending zap to support a new encoding (e.g.,
+// BSON), a new log sink (e.g., Kafka), or something more exotic (perhaps an
+// exception aggregation service, like Sentry or Rollbar) typically requires
+// implementing the zapcore.Encoder, zapcore.WriteSyncer, or zapcore.Core
+// interfaces. See the zapcore documentation for details.
+//
+// Similarly, package authors can use the high-performance Encoder and Core
+// implementations in the zapcore package to build their own loggers.
+//
+// Frequently Asked Questions
+//
+// An FAQ covering everything from installation errors to design decisions is
+// available at https://github.com/uber-go/zap/blob/master/FAQ.md.
+package zap // import "go.uber.org/zap"
diff --git a/vendor/go.uber.org/zap/encoder.go b/vendor/go.uber.org/zap/encoder.go
new file mode 100644
index 0000000..08ed833
--- /dev/null
+++ b/vendor/go.uber.org/zap/encoder.go
@@ -0,0 +1,79 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "errors"
+ "fmt"
+ "sync"
+
+ "go.uber.org/zap/zapcore"
+)
+
+var (
+ errNoEncoderNameSpecified = errors.New("no encoder name specified")
+
+ _encoderNameToConstructor = map[string]func(zapcore.EncoderConfig) (zapcore.Encoder, error){
+ "console": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
+ return zapcore.NewConsoleEncoder(encoderConfig), nil
+ },
+ "json": func(encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
+ return zapcore.NewJSONEncoder(encoderConfig), nil
+ },
+ }
+ _encoderMutex sync.RWMutex
+)
+
+// RegisterEncoder registers an encoder constructor, which the Config struct
+// can then reference. By default, the "json" and "console" encoders are
+// registered.
+//
+// Attempting to register an encoder whose name is already taken returns an
+// error.
+func RegisterEncoder(name string, constructor func(zapcore.EncoderConfig) (zapcore.Encoder, error)) error {
+ _encoderMutex.Lock()
+ defer _encoderMutex.Unlock()
+ if name == "" {
+ return errNoEncoderNameSpecified
+ }
+ if _, ok := _encoderNameToConstructor[name]; ok {
+ return fmt.Errorf("encoder already registered for name %q", name)
+ }
+ _encoderNameToConstructor[name] = constructor
+ return nil
+}
+
+func newEncoder(name string, encoderConfig zapcore.EncoderConfig) (zapcore.Encoder, error) {
+ if encoderConfig.TimeKey != "" && encoderConfig.EncodeTime == nil {
+ return nil, fmt.Errorf("missing EncodeTime in EncoderConfig")
+ }
+
+ _encoderMutex.RLock()
+ defer _encoderMutex.RUnlock()
+ if name == "" {
+ return nil, errNoEncoderNameSpecified
+ }
+ constructor, ok := _encoderNameToConstructor[name]
+ if !ok {
+ return nil, fmt.Errorf("no encoder registered for name %q", name)
+ }
+ return constructor(encoderConfig)
+}
diff --git a/vendor/go.uber.org/zap/error.go b/vendor/go.uber.org/zap/error.go
new file mode 100644
index 0000000..65982a5
--- /dev/null
+++ b/vendor/go.uber.org/zap/error.go
@@ -0,0 +1,80 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "sync"
+
+ "go.uber.org/zap/zapcore"
+)
+
+var _errArrayElemPool = sync.Pool{New: func() interface{} {
+ return &errArrayElem{}
+}}
+
+// Error is shorthand for the common idiom NamedError("error", err).
+func Error(err error) Field {
+ return NamedError("error", err)
+}
+
+// NamedError constructs a field that lazily stores err.Error() under the
+// provided key. Errors which also implement fmt.Formatter (like those produced
+// by github.com/pkg/errors) will also have their verbose representation stored
+// under key+"Verbose". If passed a nil error, the field is a no-op.
+//
+// For the common case in which the key is simply "error", the Error function
+// is shorter and less repetitive.
+func NamedError(key string, err error) Field {
+ if err == nil {
+ return Skip()
+ }
+ return Field{Key: key, Type: zapcore.ErrorType, Interface: err}
+}
+
+type errArray []error
+
+func (errs errArray) MarshalLogArray(arr zapcore.ArrayEncoder) error {
+ for i := range errs {
+ if errs[i] == nil {
+ continue
+ }
+ // To represent each error as an object with an "error" attribute and
+ // potentially an "errorVerbose" attribute, we need to wrap it in a
+ // type that implements LogObjectMarshaler. To prevent this from
+ // allocating, pool the wrapper type.
+ elem := _errArrayElemPool.Get().(*errArrayElem)
+ elem.error = errs[i]
+ arr.AppendObject(elem)
+ elem.error = nil
+ _errArrayElemPool.Put(elem)
+ }
+ return nil
+}
+
+type errArrayElem struct {
+ error
+}
+
+func (e *errArrayElem) MarshalLogObject(enc zapcore.ObjectEncoder) error {
+ // Re-use the error field's logic, which supports non-standard error types.
+ Error(e.error).AddTo(enc)
+ return nil
+}
diff --git a/vendor/go.uber.org/zap/field.go b/vendor/go.uber.org/zap/field.go
new file mode 100644
index 0000000..bbb745d
--- /dev/null
+++ b/vendor/go.uber.org/zap/field.go
@@ -0,0 +1,549 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+ "math"
+ "time"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// Field is an alias for Field. Aliasing this type dramatically
+// improves the navigability of this package's API documentation.
+type Field = zapcore.Field
+
+var (
+ _minTimeInt64 = time.Unix(0, math.MinInt64)
+ _maxTimeInt64 = time.Unix(0, math.MaxInt64)
+)
+
+// Skip constructs a no-op field, which is often useful when handling invalid
+// inputs in other Field constructors.
+func Skip() Field {
+ return Field{Type: zapcore.SkipType}
+}
+
+// nilField returns a field which will marshal explicitly as nil. See motivation
+// in https://github.com/uber-go/zap/issues/753 . If we ever make breaking
+// changes and add zapcore.NilType and zapcore.ObjectEncoder.AddNil, the
+// implementation here should be changed to reflect that.
+func nilField(key string) Field { return Reflect(key, nil) }
+
+// Binary constructs a field that carries an opaque binary blob.
+//
+// Binary data is serialized in an encoding-appropriate format. For example,
+// zap's JSON encoder base64-encodes binary blobs. To log UTF-8 encoded text,
+// use ByteString.
+func Binary(key string, val []byte) Field {
+ return Field{Key: key, Type: zapcore.BinaryType, Interface: val}
+}
+
+// Bool constructs a field that carries a bool.
+func Bool(key string, val bool) Field {
+ var ival int64
+ if val {
+ ival = 1
+ }
+ return Field{Key: key, Type: zapcore.BoolType, Integer: ival}
+}
+
+// Boolp constructs a field that carries a *bool. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Boolp(key string, val *bool) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Bool(key, *val)
+}
+
+// ByteString constructs a field that carries UTF-8 encoded text as a []byte.
+// To log opaque binary blobs (which aren't necessarily valid UTF-8), use
+// Binary.
+func ByteString(key string, val []byte) Field {
+ return Field{Key: key, Type: zapcore.ByteStringType, Interface: val}
+}
+
+// Complex128 constructs a field that carries a complex number. Unlike most
+// numeric fields, this costs an allocation (to convert the complex128 to
+// interface{}).
+func Complex128(key string, val complex128) Field {
+ return Field{Key: key, Type: zapcore.Complex128Type, Interface: val}
+}
+
+// Complex128p constructs a field that carries a *complex128. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Complex128p(key string, val *complex128) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Complex128(key, *val)
+}
+
+// Complex64 constructs a field that carries a complex number. Unlike most
+// numeric fields, this costs an allocation (to convert the complex64 to
+// interface{}).
+func Complex64(key string, val complex64) Field {
+ return Field{Key: key, Type: zapcore.Complex64Type, Interface: val}
+}
+
+// Complex64p constructs a field that carries a *complex64. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Complex64p(key string, val *complex64) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Complex64(key, *val)
+}
+
+// Float64 constructs a field that carries a float64. The way the
+// floating-point value is represented is encoder-dependent, so marshaling is
+// necessarily lazy.
+func Float64(key string, val float64) Field {
+ return Field{Key: key, Type: zapcore.Float64Type, Integer: int64(math.Float64bits(val))}
+}
+
+// Float64p constructs a field that carries a *float64. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Float64p(key string, val *float64) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Float64(key, *val)
+}
+
+// Float32 constructs a field that carries a float32. The way the
+// floating-point value is represented is encoder-dependent, so marshaling is
+// necessarily lazy.
+func Float32(key string, val float32) Field {
+ return Field{Key: key, Type: zapcore.Float32Type, Integer: int64(math.Float32bits(val))}
+}
+
+// Float32p constructs a field that carries a *float32. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Float32p(key string, val *float32) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Float32(key, *val)
+}
+
+// Int constructs a field with the given key and value.
+func Int(key string, val int) Field {
+ return Int64(key, int64(val))
+}
+
+// Intp constructs a field that carries a *int. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Intp(key string, val *int) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Int(key, *val)
+}
+
+// Int64 constructs a field with the given key and value.
+func Int64(key string, val int64) Field {
+ return Field{Key: key, Type: zapcore.Int64Type, Integer: val}
+}
+
+// Int64p constructs a field that carries a *int64. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Int64p(key string, val *int64) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Int64(key, *val)
+}
+
+// Int32 constructs a field with the given key and value.
+func Int32(key string, val int32) Field {
+ return Field{Key: key, Type: zapcore.Int32Type, Integer: int64(val)}
+}
+
+// Int32p constructs a field that carries a *int32. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Int32p(key string, val *int32) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Int32(key, *val)
+}
+
+// Int16 constructs a field with the given key and value.
+func Int16(key string, val int16) Field {
+ return Field{Key: key, Type: zapcore.Int16Type, Integer: int64(val)}
+}
+
+// Int16p constructs a field that carries a *int16. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Int16p(key string, val *int16) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Int16(key, *val)
+}
+
+// Int8 constructs a field with the given key and value.
+func Int8(key string, val int8) Field {
+ return Field{Key: key, Type: zapcore.Int8Type, Integer: int64(val)}
+}
+
+// Int8p constructs a field that carries a *int8. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Int8p(key string, val *int8) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Int8(key, *val)
+}
+
+// String constructs a field with the given key and value.
+func String(key string, val string) Field {
+ return Field{Key: key, Type: zapcore.StringType, String: val}
+}
+
+// Stringp constructs a field that carries a *string. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Stringp(key string, val *string) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return String(key, *val)
+}
+
+// Uint constructs a field with the given key and value.
+func Uint(key string, val uint) Field {
+ return Uint64(key, uint64(val))
+}
+
+// Uintp constructs a field that carries a *uint. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uintp(key string, val *uint) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uint(key, *val)
+}
+
+// Uint64 constructs a field with the given key and value.
+func Uint64(key string, val uint64) Field {
+ return Field{Key: key, Type: zapcore.Uint64Type, Integer: int64(val)}
+}
+
+// Uint64p constructs a field that carries a *uint64. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uint64p(key string, val *uint64) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uint64(key, *val)
+}
+
+// Uint32 constructs a field with the given key and value.
+func Uint32(key string, val uint32) Field {
+ return Field{Key: key, Type: zapcore.Uint32Type, Integer: int64(val)}
+}
+
+// Uint32p constructs a field that carries a *uint32. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uint32p(key string, val *uint32) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uint32(key, *val)
+}
+
+// Uint16 constructs a field with the given key and value.
+func Uint16(key string, val uint16) Field {
+ return Field{Key: key, Type: zapcore.Uint16Type, Integer: int64(val)}
+}
+
+// Uint16p constructs a field that carries a *uint16. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uint16p(key string, val *uint16) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uint16(key, *val)
+}
+
+// Uint8 constructs a field with the given key and value.
+func Uint8(key string, val uint8) Field {
+ return Field{Key: key, Type: zapcore.Uint8Type, Integer: int64(val)}
+}
+
+// Uint8p constructs a field that carries a *uint8. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uint8p(key string, val *uint8) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uint8(key, *val)
+}
+
+// Uintptr constructs a field with the given key and value.
+func Uintptr(key string, val uintptr) Field {
+ return Field{Key: key, Type: zapcore.UintptrType, Integer: int64(val)}
+}
+
+// Uintptrp constructs a field that carries a *uintptr. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Uintptrp(key string, val *uintptr) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Uintptr(key, *val)
+}
+
+// Reflect constructs a field with the given key and an arbitrary object. It uses
+// an encoding-appropriate, reflection-based function to lazily serialize nearly
+// any object into the logging context, but it's relatively slow and
+// allocation-heavy. Outside tests, Any is always a better choice.
+//
+// If encoding fails (e.g., trying to serialize a map[int]string to JSON), Reflect
+// includes the error message in the final log output.
+func Reflect(key string, val interface{}) Field {
+ return Field{Key: key, Type: zapcore.ReflectType, Interface: val}
+}
+
+// Namespace creates a named, isolated scope within the logger's context. All
+// subsequent fields will be added to the new namespace.
+//
+// This helps prevent key collisions when injecting loggers into sub-components
+// or third-party libraries.
+func Namespace(key string) Field {
+ return Field{Key: key, Type: zapcore.NamespaceType}
+}
+
+// Stringer constructs a field with the given key and the output of the value's
+// String method. The Stringer's String method is called lazily.
+func Stringer(key string, val fmt.Stringer) Field {
+ return Field{Key: key, Type: zapcore.StringerType, Interface: val}
+}
+
+// Time constructs a Field with the given key and value. The encoder
+// controls how the time is serialized.
+func Time(key string, val time.Time) Field {
+ if val.Before(_minTimeInt64) || val.After(_maxTimeInt64) {
+ return Field{Key: key, Type: zapcore.TimeFullType, Interface: val}
+ }
+ return Field{Key: key, Type: zapcore.TimeType, Integer: val.UnixNano(), Interface: val.Location()}
+}
+
+// Timep constructs a field that carries a *time.Time. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Timep(key string, val *time.Time) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Time(key, *val)
+}
+
+// Stack constructs a field that stores a stacktrace of the current goroutine
+// under provided key. Keep in mind that taking a stacktrace is eager and
+// expensive (relatively speaking); this function both makes an allocation and
+// takes about two microseconds.
+func Stack(key string) Field {
+ return StackSkip(key, 1) // skip Stack
+}
+
+// StackSkip constructs a field similarly to Stack, but also skips the given
+// number of frames from the top of the stacktrace.
+func StackSkip(key string, skip int) Field {
+ // Returning the stacktrace as a string costs an allocation, but saves us
+ // from expanding the zapcore.Field union struct to include a byte slice. Since
+ // taking a stacktrace is already so expensive (~10us), the extra allocation
+ // is okay.
+ return String(key, takeStacktrace(skip+1)) // skip StackSkip
+}
+
+// Duration constructs a field with the given key and value. The encoder
+// controls how the duration is serialized.
+func Duration(key string, val time.Duration) Field {
+ return Field{Key: key, Type: zapcore.DurationType, Integer: int64(val)}
+}
+
+// Durationp constructs a field that carries a *time.Duration. The returned Field will safely
+// and explicitly represent `nil` when appropriate.
+func Durationp(key string, val *time.Duration) Field {
+ if val == nil {
+ return nilField(key)
+ }
+ return Duration(key, *val)
+}
+
+// Object constructs a field with the given key and ObjectMarshaler. It
+// provides a flexible, but still type-safe and efficient, way to add map- or
+// struct-like user-defined types to the logging context. The struct's
+// MarshalLogObject method is called lazily.
+func Object(key string, val zapcore.ObjectMarshaler) Field {
+ return Field{Key: key, Type: zapcore.ObjectMarshalerType, Interface: val}
+}
+
+// Inline constructs a Field that is similar to Object, but it
+// will add the elements of the provided ObjectMarshaler to the
+// current namespace.
+func Inline(val zapcore.ObjectMarshaler) Field {
+ return zapcore.Field{
+ Type: zapcore.InlineMarshalerType,
+ Interface: val,
+ }
+}
+
+// Any takes a key and an arbitrary value and chooses the best way to represent
+// them as a field, falling back to a reflection-based approach only if
+// necessary.
+//
+// Since byte/uint8 and rune/int32 are aliases, Any can't differentiate between
+// them. To minimize surprises, []byte values are treated as binary blobs, byte
+// values are treated as uint8, and runes are always treated as integers.
+func Any(key string, value interface{}) Field {
+ switch val := value.(type) {
+ case zapcore.ObjectMarshaler:
+ return Object(key, val)
+ case zapcore.ArrayMarshaler:
+ return Array(key, val)
+ case bool:
+ return Bool(key, val)
+ case *bool:
+ return Boolp(key, val)
+ case []bool:
+ return Bools(key, val)
+ case complex128:
+ return Complex128(key, val)
+ case *complex128:
+ return Complex128p(key, val)
+ case []complex128:
+ return Complex128s(key, val)
+ case complex64:
+ return Complex64(key, val)
+ case *complex64:
+ return Complex64p(key, val)
+ case []complex64:
+ return Complex64s(key, val)
+ case float64:
+ return Float64(key, val)
+ case *float64:
+ return Float64p(key, val)
+ case []float64:
+ return Float64s(key, val)
+ case float32:
+ return Float32(key, val)
+ case *float32:
+ return Float32p(key, val)
+ case []float32:
+ return Float32s(key, val)
+ case int:
+ return Int(key, val)
+ case *int:
+ return Intp(key, val)
+ case []int:
+ return Ints(key, val)
+ case int64:
+ return Int64(key, val)
+ case *int64:
+ return Int64p(key, val)
+ case []int64:
+ return Int64s(key, val)
+ case int32:
+ return Int32(key, val)
+ case *int32:
+ return Int32p(key, val)
+ case []int32:
+ return Int32s(key, val)
+ case int16:
+ return Int16(key, val)
+ case *int16:
+ return Int16p(key, val)
+ case []int16:
+ return Int16s(key, val)
+ case int8:
+ return Int8(key, val)
+ case *int8:
+ return Int8p(key, val)
+ case []int8:
+ return Int8s(key, val)
+ case string:
+ return String(key, val)
+ case *string:
+ return Stringp(key, val)
+ case []string:
+ return Strings(key, val)
+ case uint:
+ return Uint(key, val)
+ case *uint:
+ return Uintp(key, val)
+ case []uint:
+ return Uints(key, val)
+ case uint64:
+ return Uint64(key, val)
+ case *uint64:
+ return Uint64p(key, val)
+ case []uint64:
+ return Uint64s(key, val)
+ case uint32:
+ return Uint32(key, val)
+ case *uint32:
+ return Uint32p(key, val)
+ case []uint32:
+ return Uint32s(key, val)
+ case uint16:
+ return Uint16(key, val)
+ case *uint16:
+ return Uint16p(key, val)
+ case []uint16:
+ return Uint16s(key, val)
+ case uint8:
+ return Uint8(key, val)
+ case *uint8:
+ return Uint8p(key, val)
+ case []byte:
+ return Binary(key, val)
+ case uintptr:
+ return Uintptr(key, val)
+ case *uintptr:
+ return Uintptrp(key, val)
+ case []uintptr:
+ return Uintptrs(key, val)
+ case time.Time:
+ return Time(key, val)
+ case *time.Time:
+ return Timep(key, val)
+ case []time.Time:
+ return Times(key, val)
+ case time.Duration:
+ return Duration(key, val)
+ case *time.Duration:
+ return Durationp(key, val)
+ case []time.Duration:
+ return Durations(key, val)
+ case error:
+ return NamedError(key, val)
+ case []error:
+ return Errors(key, val)
+ case fmt.Stringer:
+ return Stringer(key, val)
+ default:
+ return Reflect(key, val)
+ }
+}
diff --git a/vendor/go.uber.org/zap/flag.go b/vendor/go.uber.org/zap/flag.go
new file mode 100644
index 0000000..1312875
--- /dev/null
+++ b/vendor/go.uber.org/zap/flag.go
@@ -0,0 +1,39 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "flag"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// LevelFlag uses the standard library's flag.Var to declare a global flag
+// with the specified name, default, and usage guidance. The returned value is
+// a pointer to the value of the flag.
+//
+// If you don't want to use the flag package's global state, you can use any
+// non-nil *Level as a flag.Value with your own *flag.FlagSet.
+func LevelFlag(name string, defaultLevel zapcore.Level, usage string) *zapcore.Level {
+ lvl := defaultLevel
+ flag.Var(&lvl, name, usage)
+ return &lvl
+}
diff --git a/vendor/go.uber.org/zap/glide.yaml b/vendor/go.uber.org/zap/glide.yaml
new file mode 100644
index 0000000..8e1d05e
--- /dev/null
+++ b/vendor/go.uber.org/zap/glide.yaml
@@ -0,0 +1,34 @@
+package: go.uber.org/zap
+license: MIT
+import:
+- package: go.uber.org/atomic
+ version: ^1
+- package: go.uber.org/multierr
+ version: ^1
+testImport:
+- package: github.com/satori/go.uuid
+- package: github.com/sirupsen/logrus
+- package: github.com/apex/log
+ subpackages:
+ - handlers/json
+- package: github.com/go-kit/kit
+ subpackages:
+ - log
+- package: github.com/stretchr/testify
+ subpackages:
+ - assert
+ - require
+- package: gopkg.in/inconshreveable/log15.v2
+- package: github.com/mattn/goveralls
+- package: github.com/pborman/uuid
+- package: github.com/pkg/errors
+- package: github.com/rs/zerolog
+- package: golang.org/x/tools
+ subpackages:
+ - cover
+- package: golang.org/x/lint
+ subpackages:
+ - golint
+- package: github.com/axw/gocov
+ subpackages:
+ - gocov
diff --git a/vendor/go.uber.org/zap/global.go b/vendor/go.uber.org/zap/global.go
new file mode 100644
index 0000000..c1ac050
--- /dev/null
+++ b/vendor/go.uber.org/zap/global.go
@@ -0,0 +1,168 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "bytes"
+ "fmt"
+ "log"
+ "os"
+ "sync"
+
+ "go.uber.org/zap/zapcore"
+)
+
+const (
+ _loggerWriterDepth = 2
+ _programmerErrorTemplate = "You've found a bug in zap! Please file a bug at " +
+ "https://github.com/uber-go/zap/issues/new and reference this error: %v"
+)
+
+var (
+ _globalMu sync.RWMutex
+ _globalL = NewNop()
+ _globalS = _globalL.Sugar()
+)
+
+// L returns the global Logger, which can be reconfigured with ReplaceGlobals.
+// It's safe for concurrent use.
+func L() *Logger {
+ _globalMu.RLock()
+ l := _globalL
+ _globalMu.RUnlock()
+ return l
+}
+
+// S returns the global SugaredLogger, which can be reconfigured with
+// ReplaceGlobals. It's safe for concurrent use.
+func S() *SugaredLogger {
+ _globalMu.RLock()
+ s := _globalS
+ _globalMu.RUnlock()
+ return s
+}
+
+// ReplaceGlobals replaces the global Logger and SugaredLogger, and returns a
+// function to restore the original values. It's safe for concurrent use.
+func ReplaceGlobals(logger *Logger) func() {
+ _globalMu.Lock()
+ prev := _globalL
+ _globalL = logger
+ _globalS = logger.Sugar()
+ _globalMu.Unlock()
+ return func() { ReplaceGlobals(prev) }
+}
+
+// NewStdLog returns a *log.Logger which writes to the supplied zap Logger at
+// InfoLevel. To redirect the standard library's package-global logging
+// functions, use RedirectStdLog instead.
+func NewStdLog(l *Logger) *log.Logger {
+ logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
+ f := logger.Info
+ return log.New(&loggerWriter{f}, "" /* prefix */, 0 /* flags */)
+}
+
+// NewStdLogAt returns *log.Logger which writes to supplied zap logger at
+// required level.
+func NewStdLogAt(l *Logger, level zapcore.Level) (*log.Logger, error) {
+ logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
+ logFunc, err := levelToFunc(logger, level)
+ if err != nil {
+ return nil, err
+ }
+ return log.New(&loggerWriter{logFunc}, "" /* prefix */, 0 /* flags */), nil
+}
+
+// RedirectStdLog redirects output from the standard library's package-global
+// logger to the supplied logger at InfoLevel. Since zap already handles caller
+// annotations, timestamps, etc., it automatically disables the standard
+// library's annotations and prefixing.
+//
+// It returns a function to restore the original prefix and flags and reset the
+// standard library's output to os.Stderr.
+func RedirectStdLog(l *Logger) func() {
+ f, err := redirectStdLogAt(l, InfoLevel)
+ if err != nil {
+ // Can't get here, since passing InfoLevel to redirectStdLogAt always
+ // works.
+ panic(fmt.Sprintf(_programmerErrorTemplate, err))
+ }
+ return f
+}
+
+// RedirectStdLogAt redirects output from the standard library's package-global
+// logger to the supplied logger at the specified level. Since zap already
+// handles caller annotations, timestamps, etc., it automatically disables the
+// standard library's annotations and prefixing.
+//
+// It returns a function to restore the original prefix and flags and reset the
+// standard library's output to os.Stderr.
+func RedirectStdLogAt(l *Logger, level zapcore.Level) (func(), error) {
+ return redirectStdLogAt(l, level)
+}
+
+func redirectStdLogAt(l *Logger, level zapcore.Level) (func(), error) {
+ flags := log.Flags()
+ prefix := log.Prefix()
+ log.SetFlags(0)
+ log.SetPrefix("")
+ logger := l.WithOptions(AddCallerSkip(_stdLogDefaultDepth + _loggerWriterDepth))
+ logFunc, err := levelToFunc(logger, level)
+ if err != nil {
+ return nil, err
+ }
+ log.SetOutput(&loggerWriter{logFunc})
+ return func() {
+ log.SetFlags(flags)
+ log.SetPrefix(prefix)
+ log.SetOutput(os.Stderr)
+ }, nil
+}
+
+func levelToFunc(logger *Logger, lvl zapcore.Level) (func(string, ...Field), error) {
+ switch lvl {
+ case DebugLevel:
+ return logger.Debug, nil
+ case InfoLevel:
+ return logger.Info, nil
+ case WarnLevel:
+ return logger.Warn, nil
+ case ErrorLevel:
+ return logger.Error, nil
+ case DPanicLevel:
+ return logger.DPanic, nil
+ case PanicLevel:
+ return logger.Panic, nil
+ case FatalLevel:
+ return logger.Fatal, nil
+ }
+ return nil, fmt.Errorf("unrecognized level: %q", lvl)
+}
+
+type loggerWriter struct {
+ logFunc func(msg string, fields ...Field)
+}
+
+func (l *loggerWriter) Write(p []byte) (int, error) {
+ p = bytes.TrimSpace(p)
+ l.logFunc(string(p))
+ return len(p), nil
+}
diff --git a/vendor/go.uber.org/zap/global_go112.go b/vendor/go.uber.org/zap/global_go112.go
new file mode 100644
index 0000000..6b5dbda
--- /dev/null
+++ b/vendor/go.uber.org/zap/global_go112.go
@@ -0,0 +1,26 @@
+// Copyright (c) 2019 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// See #682 for more information.
+// +build go1.12
+
+package zap
+
+const _stdLogDefaultDepth = 1
diff --git a/vendor/go.uber.org/zap/global_prego112.go b/vendor/go.uber.org/zap/global_prego112.go
new file mode 100644
index 0000000..d3ab9af
--- /dev/null
+++ b/vendor/go.uber.org/zap/global_prego112.go
@@ -0,0 +1,26 @@
+// Copyright (c) 2019 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// See #682 for more information.
+// +build !go1.12
+
+package zap
+
+const _stdLogDefaultDepth = 2
diff --git a/vendor/go.uber.org/zap/go.mod b/vendor/go.uber.org/zap/go.mod
new file mode 100644
index 0000000..9455c99
--- /dev/null
+++ b/vendor/go.uber.org/zap/go.mod
@@ -0,0 +1,14 @@
+module go.uber.org/zap
+
+go 1.13
+
+require (
+ github.com/benbjohnson/clock v1.1.0
+ github.com/pkg/errors v0.8.1
+ github.com/stretchr/testify v1.7.0
+ go.uber.org/atomic v1.7.0
+ go.uber.org/goleak v1.1.10
+ go.uber.org/multierr v1.6.0
+ gopkg.in/yaml.v2 v2.2.8
+ gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b // indirect
+)
diff --git a/vendor/go.uber.org/zap/go.sum b/vendor/go.uber.org/zap/go.sum
new file mode 100644
index 0000000..b330071
--- /dev/null
+++ b/vendor/go.uber.org/zap/go.sum
@@ -0,0 +1,54 @@
+github.com/benbjohnson/clock v1.1.0 h1:Q92kusRqC1XV2MjkWETPvjJVqKetz1OzxZB7mHJLju8=
+github.com/benbjohnson/clock v1.1.0/go.mod h1:J11/hYXuz8f4ySSvYwY0FKfm+ezbsZBKZxNJlLklBHA=
+github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
+github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
+github.com/kr/pretty v0.1.0 h1:L/CwN0zerZDmRFUapSPitk6f+Q3+0za1rQkzVuMiMFI=
+github.com/kr/pretty v0.1.0/go.mod h1:dAy3ld7l9f0ibDNOQOHHMYYIIbhfbHSm3C4ZsoJORNo=
+github.com/kr/pty v1.1.1 h1:VkoXIwSboBpnk99O/KFauAEILuNHv5DVFKZMBN/gUgw=
+github.com/kr/pty v1.1.1/go.mod h1:pFQYn66WHrOpPYNljwOMqo10TkYh1fy3cYio2l3bCsQ=
+github.com/kr/text v0.1.0 h1:45sCR5RtlFHMR4UwH9sdQ5TC8v0qDQCHnXt+kaKSTVE=
+github.com/kr/text v0.1.0/go.mod h1:4Jbv+DJW3UT/LiOwJeYQe1efqtUx/iVham/4vfdArNI=
+github.com/pkg/errors v0.8.1 h1:iURUrRGxPUNPdy5/HRSm+Yj6okJ6UtLINN0Q9M4+h3I=
+github.com/pkg/errors v0.8.1/go.mod h1:bwawxfHBFNV+L2hUp1rHADufV3IMtnDRdf1r5NINEl0=
+github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
+github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
+github.com/stretchr/objx v0.1.0 h1:4G4v2dO3VZwixGIRoQ5Lfboy6nUhCyYzaqnIAPPhYs4=
+github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
+github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
+github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
+github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
+github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
+go.uber.org/atomic v1.7.0 h1:ADUqmZGgLDDfbSL9ZmPxKTybcoEYHgpYfELNoN+7hsw=
+go.uber.org/atomic v1.7.0/go.mod h1:fEN4uk6kAWBTFdckzkM89CLk9XfWZrxpCo0nPH17wJc=
+go.uber.org/goleak v1.1.10 h1:z+mqJhf6ss6BSfSM671tgKyZBFPTTJM+HLxnhPC3wu0=
+go.uber.org/goleak v1.1.10/go.mod h1:8a7PlsEVH3e/a/GLqe5IIrQx6GzcnRmZEufDUTk4A7A=
+go.uber.org/multierr v1.6.0 h1:y6IPFStTAIT5Ytl7/XYmHvzXQ7S3g/IeZW9hyZ5thw4=
+go.uber.org/multierr v1.6.0/go.mod h1:cdWPpRnG4AhwMwsgIHip0KRBQjJy5kYEpYjJxpXp9iU=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2 h1:VklqNMn3ovrHsnt90PveolxSbWFaJdECFbxSq0Mqo2M=
+golang.org/x/crypto v0.0.0-20190308221718-c2843e01d9a2/go.mod h1:djNgcEr1/C05ACkg1iLfiJU5Ep61QUkGW8qpdssI0+w=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
+golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
+golang.org/x/net v0.0.0-20190311183353-d8887717615a/go.mod h1:t9HGtf8HONx5eT2rtn7q6eTqICYqUVnKs3thJo3Qplg=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859 h1:R/3boaszxrf1GEUWTVDzSKVwLmSJpwZ1yqXm8j0v2QI=
+golang.org/x/net v0.0.0-20190620200207-3b0461eec859/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
+golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a h1:1BGLXjeY4akVXGgbC9HugT3Jv3hCI0z56oJR5vAMgBU=
+golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
+golang.org/x/text v0.3.0 h1:g61tztE5qeGQ89tm6NTjjM9VPIm088od1l6aSorWRWg=
+golang.org/x/text v0.3.0/go.mod h1:NqM8EUOU14njkJ3fqMW+pc6Ldnwhi/IjpwHt7yyuwOQ=
+golang.org/x/tools v0.0.0-20190311212946-11955173bddd/go.mod h1:LCzVGOaR6xXOjkQ3onu1FJEFr0SW1gC7cKk1uF8kGRs=
+golang.org/x/tools v0.0.0-20191108193012-7d206e10da11 h1:Yq9t9jnGoR+dBuitxdo9l6Q7xh/zOyNnYUtDKaQ3x0E=
+golang.org/x/tools v0.0.0-20191108193012-7d206e10da11/go.mod h1:b+2E5dAYhXwXZwtnZ6UAqBI28+e2cm9otk0dWdXHAEo=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7 h1:9zdDQZ7Thm29KFXgAX/+yaf3eVbP7djjWp/dXAppNCc=
+golang.org/x/xerrors v0.0.0-20190717185122-a985d3407aa7/go.mod h1:I/5z698sn9Ka8TeJc9MKroUUfqBBauWjQqLJ2OPfmY0=
+gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127 h1:qIbj1fsPNlZgppZ+VLlY7N33q108Sa+fhmuc+sWQYwY=
+gopkg.in/check.v1 v1.0.0-20180628173108-788fd7840127/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
+gopkg.in/yaml.v2 v2.2.2/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v2 v2.2.8 h1:obN1ZagJSUGI0Ek/LBmuj4SNLPfIny3KsKFopxRdj10=
+gopkg.in/yaml.v2 v2.2.8/go.mod h1:hI93XBmqTisBFMUTm0b8Fm+jr3Dg1NNxqwp+5A1VGuI=
+gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b h1:h8qDotaEPuJATrMmW04NCwg7v22aHH28wwpauUhK9Oo=
+gopkg.in/yaml.v3 v3.0.0-20210107192922-496545a6307b/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=
diff --git a/vendor/go.uber.org/zap/http_handler.go b/vendor/go.uber.org/zap/http_handler.go
new file mode 100644
index 0000000..1297c33
--- /dev/null
+++ b/vendor/go.uber.org/zap/http_handler.go
@@ -0,0 +1,132 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "encoding/json"
+ "fmt"
+ "io"
+ "net/http"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// ServeHTTP is a simple JSON endpoint that can report on or change the current
+// logging level.
+//
+// GET
+//
+// The GET request returns a JSON description of the current logging level like:
+// {"level":"info"}
+//
+// PUT
+//
+// The PUT request changes the logging level. It is perfectly safe to change the
+// logging level while a program is running. Two content types are supported:
+//
+// Content-Type: application/x-www-form-urlencoded
+//
+// With this content type, the level can be provided through the request body or
+// a query parameter. The log level is URL encoded like:
+//
+// level=debug
+//
+// The request body takes precedence over the query parameter, if both are
+// specified.
+//
+// This content type is the default for a curl PUT request. Following are two
+// example curl requests that both set the logging level to debug.
+//
+// curl -X PUT localhost:8080/log/level?level=debug
+// curl -X PUT localhost:8080/log/level -d level=debug
+//
+// For any other content type, the payload is expected to be JSON encoded and
+// look like:
+//
+// {"level":"info"}
+//
+// An example curl request could look like this:
+//
+// curl -X PUT localhost:8080/log/level -H "Content-Type: application/json" -d '{"level":"debug"}'
+//
+func (lvl AtomicLevel) ServeHTTP(w http.ResponseWriter, r *http.Request) {
+ type errorResponse struct {
+ Error string `json:"error"`
+ }
+ type payload struct {
+ Level zapcore.Level `json:"level"`
+ }
+
+ enc := json.NewEncoder(w)
+
+ switch r.Method {
+ case http.MethodGet:
+ enc.Encode(payload{Level: lvl.Level()})
+ case http.MethodPut:
+ requestedLvl, err := decodePutRequest(r.Header.Get("Content-Type"), r)
+ if err != nil {
+ w.WriteHeader(http.StatusBadRequest)
+ enc.Encode(errorResponse{Error: err.Error()})
+ return
+ }
+ lvl.SetLevel(requestedLvl)
+ enc.Encode(payload{Level: lvl.Level()})
+ default:
+ w.WriteHeader(http.StatusMethodNotAllowed)
+ enc.Encode(errorResponse{
+ Error: "Only GET and PUT are supported.",
+ })
+ }
+}
+
+// Decodes incoming PUT requests and returns the requested logging level.
+func decodePutRequest(contentType string, r *http.Request) (zapcore.Level, error) {
+ if contentType == "application/x-www-form-urlencoded" {
+ return decodePutURL(r)
+ }
+ return decodePutJSON(r.Body)
+}
+
+func decodePutURL(r *http.Request) (zapcore.Level, error) {
+ lvl := r.FormValue("level")
+ if lvl == "" {
+ return 0, fmt.Errorf("must specify logging level")
+ }
+ var l zapcore.Level
+ if err := l.UnmarshalText([]byte(lvl)); err != nil {
+ return 0, err
+ }
+ return l, nil
+}
+
+func decodePutJSON(body io.Reader) (zapcore.Level, error) {
+ var pld struct {
+ Level *zapcore.Level `json:"level"`
+ }
+ if err := json.NewDecoder(body).Decode(&pld); err != nil {
+ return 0, fmt.Errorf("malformed request body: %v", err)
+ }
+ if pld.Level == nil {
+ return 0, fmt.Errorf("must specify logging level")
+ }
+ return *pld.Level, nil
+
+}
diff --git a/vendor/go.uber.org/zap/internal/bufferpool/bufferpool.go b/vendor/go.uber.org/zap/internal/bufferpool/bufferpool.go
new file mode 100644
index 0000000..dad583a
--- /dev/null
+++ b/vendor/go.uber.org/zap/internal/bufferpool/bufferpool.go
@@ -0,0 +1,31 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package bufferpool houses zap's shared internal buffer pool. Third-party
+// packages can recreate the same functionality with buffers.NewPool.
+package bufferpool
+
+import "go.uber.org/zap/buffer"
+
+var (
+ _pool = buffer.NewPool()
+ // Get retrieves a buffer from the pool, creating one if necessary.
+ Get = _pool.Get
+)
diff --git a/vendor/go.uber.org/zap/internal/color/color.go b/vendor/go.uber.org/zap/internal/color/color.go
new file mode 100644
index 0000000..c4d5d02
--- /dev/null
+++ b/vendor/go.uber.org/zap/internal/color/color.go
@@ -0,0 +1,44 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package color adds coloring functionality for TTY output.
+package color
+
+import "fmt"
+
+// Foreground colors.
+const (
+ Black Color = iota + 30
+ Red
+ Green
+ Yellow
+ Blue
+ Magenta
+ Cyan
+ White
+)
+
+// Color represents a text color.
+type Color uint8
+
+// Add adds the coloring to the given string.
+func (c Color) Add(s string) string {
+ return fmt.Sprintf("\x1b[%dm%s\x1b[0m", uint8(c), s)
+}
diff --git a/vendor/go.uber.org/zap/internal/exit/exit.go b/vendor/go.uber.org/zap/internal/exit/exit.go
new file mode 100644
index 0000000..dfc5b05
--- /dev/null
+++ b/vendor/go.uber.org/zap/internal/exit/exit.go
@@ -0,0 +1,64 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package exit provides stubs so that unit tests can exercise code that calls
+// os.Exit(1).
+package exit
+
+import "os"
+
+var real = func() { os.Exit(1) }
+
+// Exit normally terminates the process by calling os.Exit(1). If the package
+// is stubbed, it instead records a call in the testing spy.
+func Exit() {
+ real()
+}
+
+// A StubbedExit is a testing fake for os.Exit.
+type StubbedExit struct {
+ Exited bool
+ prev func()
+}
+
+// Stub substitutes a fake for the call to os.Exit(1).
+func Stub() *StubbedExit {
+ s := &StubbedExit{prev: real}
+ real = s.exit
+ return s
+}
+
+// WithStub runs the supplied function with Exit stubbed. It returns the stub
+// used, so that users can test whether the process would have crashed.
+func WithStub(f func()) *StubbedExit {
+ s := Stub()
+ defer s.Unstub()
+ f()
+ return s
+}
+
+// Unstub restores the previous exit function.
+func (se *StubbedExit) Unstub() {
+ real = se.prev
+}
+
+func (se *StubbedExit) exit() {
+ se.Exited = true
+}
diff --git a/vendor/go.uber.org/zap/level.go b/vendor/go.uber.org/zap/level.go
new file mode 100644
index 0000000..3567a9a
--- /dev/null
+++ b/vendor/go.uber.org/zap/level.go
@@ -0,0 +1,132 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "go.uber.org/atomic"
+ "go.uber.org/zap/zapcore"
+)
+
+const (
+ // DebugLevel logs are typically voluminous, and are usually disabled in
+ // production.
+ DebugLevel = zapcore.DebugLevel
+ // InfoLevel is the default logging priority.
+ InfoLevel = zapcore.InfoLevel
+ // WarnLevel logs are more important than Info, but don't need individual
+ // human review.
+ WarnLevel = zapcore.WarnLevel
+ // ErrorLevel logs are high-priority. If an application is running smoothly,
+ // it shouldn't generate any error-level logs.
+ ErrorLevel = zapcore.ErrorLevel
+ // DPanicLevel logs are particularly important errors. In development the
+ // logger panics after writing the message.
+ DPanicLevel = zapcore.DPanicLevel
+ // PanicLevel logs a message, then panics.
+ PanicLevel = zapcore.PanicLevel
+ // FatalLevel logs a message, then calls os.Exit(1).
+ FatalLevel = zapcore.FatalLevel
+)
+
+// LevelEnablerFunc is a convenient way to implement zapcore.LevelEnabler with
+// an anonymous function.
+//
+// It's particularly useful when splitting log output between different
+// outputs (e.g., standard error and standard out). For sample code, see the
+// package-level AdvancedConfiguration example.
+type LevelEnablerFunc func(zapcore.Level) bool
+
+// Enabled calls the wrapped function.
+func (f LevelEnablerFunc) Enabled(lvl zapcore.Level) bool { return f(lvl) }
+
+// An AtomicLevel is an atomically changeable, dynamic logging level. It lets
+// you safely change the log level of a tree of loggers (the root logger and
+// any children created by adding context) at runtime.
+//
+// The AtomicLevel itself is an http.Handler that serves a JSON endpoint to
+// alter its level.
+//
+// AtomicLevels must be created with the NewAtomicLevel constructor to allocate
+// their internal atomic pointer.
+type AtomicLevel struct {
+ l *atomic.Int32
+}
+
+// NewAtomicLevel creates an AtomicLevel with InfoLevel and above logging
+// enabled.
+func NewAtomicLevel() AtomicLevel {
+ return AtomicLevel{
+ l: atomic.NewInt32(int32(InfoLevel)),
+ }
+}
+
+// NewAtomicLevelAt is a convenience function that creates an AtomicLevel
+// and then calls SetLevel with the given level.
+func NewAtomicLevelAt(l zapcore.Level) AtomicLevel {
+ a := NewAtomicLevel()
+ a.SetLevel(l)
+ return a
+}
+
+// Enabled implements the zapcore.LevelEnabler interface, which allows the
+// AtomicLevel to be used in place of traditional static levels.
+func (lvl AtomicLevel) Enabled(l zapcore.Level) bool {
+ return lvl.Level().Enabled(l)
+}
+
+// Level returns the minimum enabled log level.
+func (lvl AtomicLevel) Level() zapcore.Level {
+ return zapcore.Level(int8(lvl.l.Load()))
+}
+
+// SetLevel alters the logging level.
+func (lvl AtomicLevel) SetLevel(l zapcore.Level) {
+ lvl.l.Store(int32(l))
+}
+
+// String returns the string representation of the underlying Level.
+func (lvl AtomicLevel) String() string {
+ return lvl.Level().String()
+}
+
+// UnmarshalText unmarshals the text to an AtomicLevel. It uses the same text
+// representations as the static zapcore.Levels ("debug", "info", "warn",
+// "error", "dpanic", "panic", and "fatal").
+func (lvl *AtomicLevel) UnmarshalText(text []byte) error {
+ if lvl.l == nil {
+ lvl.l = &atomic.Int32{}
+ }
+
+ var l zapcore.Level
+ if err := l.UnmarshalText(text); err != nil {
+ return err
+ }
+
+ lvl.SetLevel(l)
+ return nil
+}
+
+// MarshalText marshals the AtomicLevel to a byte slice. It uses the same
+// text representation as the static zapcore.Levels ("debug", "info", "warn",
+// "error", "dpanic", "panic", and "fatal").
+func (lvl AtomicLevel) MarshalText() (text []byte, err error) {
+ return lvl.Level().MarshalText()
+}
diff --git a/vendor/go.uber.org/zap/logger.go b/vendor/go.uber.org/zap/logger.go
new file mode 100644
index 0000000..f116bd9
--- /dev/null
+++ b/vendor/go.uber.org/zap/logger.go
@@ -0,0 +1,348 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+ "io/ioutil"
+ "os"
+ "runtime"
+ "strings"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// A Logger provides fast, leveled, structured logging. All methods are safe
+// for concurrent use.
+//
+// The Logger is designed for contexts in which every microsecond and every
+// allocation matters, so its API intentionally favors performance and type
+// safety over brevity. For most applications, the SugaredLogger strikes a
+// better balance between performance and ergonomics.
+type Logger struct {
+ core zapcore.Core
+
+ development bool
+ addCaller bool
+ onFatal zapcore.CheckWriteAction // default is WriteThenFatal
+
+ name string
+ errorOutput zapcore.WriteSyncer
+
+ addStack zapcore.LevelEnabler
+
+ callerSkip int
+
+ clock zapcore.Clock
+}
+
+// New constructs a new Logger from the provided zapcore.Core and Options. If
+// the passed zapcore.Core is nil, it falls back to using a no-op
+// implementation.
+//
+// This is the most flexible way to construct a Logger, but also the most
+// verbose. For typical use cases, the highly-opinionated presets
+// (NewProduction, NewDevelopment, and NewExample) or the Config struct are
+// more convenient.
+//
+// For sample code, see the package-level AdvancedConfiguration example.
+func New(core zapcore.Core, options ...Option) *Logger {
+ if core == nil {
+ return NewNop()
+ }
+ log := &Logger{
+ core: core,
+ errorOutput: zapcore.Lock(os.Stderr),
+ addStack: zapcore.FatalLevel + 1,
+ clock: zapcore.DefaultClock,
+ }
+ return log.WithOptions(options...)
+}
+
+// NewNop returns a no-op Logger. It never writes out logs or internal errors,
+// and it never runs user-defined hooks.
+//
+// Using WithOptions to replace the Core or error output of a no-op Logger can
+// re-enable logging.
+func NewNop() *Logger {
+ return &Logger{
+ core: zapcore.NewNopCore(),
+ errorOutput: zapcore.AddSync(ioutil.Discard),
+ addStack: zapcore.FatalLevel + 1,
+ clock: zapcore.DefaultClock,
+ }
+}
+
+// NewProduction builds a sensible production Logger that writes InfoLevel and
+// above logs to standard error as JSON.
+//
+// It's a shortcut for NewProductionConfig().Build(...Option).
+func NewProduction(options ...Option) (*Logger, error) {
+ return NewProductionConfig().Build(options...)
+}
+
+// NewDevelopment builds a development Logger that writes DebugLevel and above
+// logs to standard error in a human-friendly format.
+//
+// It's a shortcut for NewDevelopmentConfig().Build(...Option).
+func NewDevelopment(options ...Option) (*Logger, error) {
+ return NewDevelopmentConfig().Build(options...)
+}
+
+// NewExample builds a Logger that's designed for use in zap's testable
+// examples. It writes DebugLevel and above logs to standard out as JSON, but
+// omits the timestamp and calling function to keep example output
+// short and deterministic.
+func NewExample(options ...Option) *Logger {
+ encoderCfg := zapcore.EncoderConfig{
+ MessageKey: "msg",
+ LevelKey: "level",
+ NameKey: "logger",
+ EncodeLevel: zapcore.LowercaseLevelEncoder,
+ EncodeTime: zapcore.ISO8601TimeEncoder,
+ EncodeDuration: zapcore.StringDurationEncoder,
+ }
+ core := zapcore.NewCore(zapcore.NewJSONEncoder(encoderCfg), os.Stdout, DebugLevel)
+ return New(core).WithOptions(options...)
+}
+
+// Sugar wraps the Logger to provide a more ergonomic, but slightly slower,
+// API. Sugaring a Logger is quite inexpensive, so it's reasonable for a
+// single application to use both Loggers and SugaredLoggers, converting
+// between them on the boundaries of performance-sensitive code.
+func (log *Logger) Sugar() *SugaredLogger {
+ core := log.clone()
+ core.callerSkip += 2
+ return &SugaredLogger{core}
+}
+
+// Named adds a new path segment to the logger's name. Segments are joined by
+// periods. By default, Loggers are unnamed.
+func (log *Logger) Named(s string) *Logger {
+ if s == "" {
+ return log
+ }
+ l := log.clone()
+ if log.name == "" {
+ l.name = s
+ } else {
+ l.name = strings.Join([]string{l.name, s}, ".")
+ }
+ return l
+}
+
+// WithOptions clones the current Logger, applies the supplied Options, and
+// returns the resulting Logger. It's safe to use concurrently.
+func (log *Logger) WithOptions(opts ...Option) *Logger {
+ c := log.clone()
+ for _, opt := range opts {
+ opt.apply(c)
+ }
+ return c
+}
+
+// With creates a child logger and adds structured context to it. Fields added
+// to the child don't affect the parent, and vice versa.
+func (log *Logger) With(fields ...Field) *Logger {
+ if len(fields) == 0 {
+ return log
+ }
+ l := log.clone()
+ l.core = l.core.With(fields)
+ return l
+}
+
+// Check returns a CheckedEntry if logging a message at the specified level
+// is enabled. It's a completely optional optimization; in high-performance
+// applications, Check can help avoid allocating a slice to hold fields.
+func (log *Logger) Check(lvl zapcore.Level, msg string) *zapcore.CheckedEntry {
+ return log.check(lvl, msg)
+}
+
+// Debug logs a message at DebugLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+func (log *Logger) Debug(msg string, fields ...Field) {
+ if ce := log.check(DebugLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Info logs a message at InfoLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+func (log *Logger) Info(msg string, fields ...Field) {
+ if ce := log.check(InfoLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Warn logs a message at WarnLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+func (log *Logger) Warn(msg string, fields ...Field) {
+ if ce := log.check(WarnLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Error logs a message at ErrorLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+func (log *Logger) Error(msg string, fields ...Field) {
+ if ce := log.check(ErrorLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// DPanic logs a message at DPanicLevel. The message includes any fields
+// passed at the log site, as well as any fields accumulated on the logger.
+//
+// If the logger is in development mode, it then panics (DPanic means
+// "development panic"). This is useful for catching errors that are
+// recoverable, but shouldn't ever happen.
+func (log *Logger) DPanic(msg string, fields ...Field) {
+ if ce := log.check(DPanicLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Panic logs a message at PanicLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+//
+// The logger then panics, even if logging at PanicLevel is disabled.
+func (log *Logger) Panic(msg string, fields ...Field) {
+ if ce := log.check(PanicLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Fatal logs a message at FatalLevel. The message includes any fields passed
+// at the log site, as well as any fields accumulated on the logger.
+//
+// The logger then calls os.Exit(1), even if logging at FatalLevel is
+// disabled.
+func (log *Logger) Fatal(msg string, fields ...Field) {
+ if ce := log.check(FatalLevel, msg); ce != nil {
+ ce.Write(fields...)
+ }
+}
+
+// Sync calls the underlying Core's Sync method, flushing any buffered log
+// entries. Applications should take care to call Sync before exiting.
+func (log *Logger) Sync() error {
+ return log.core.Sync()
+}
+
+// Core returns the Logger's underlying zapcore.Core.
+func (log *Logger) Core() zapcore.Core {
+ return log.core
+}
+
+func (log *Logger) clone() *Logger {
+ copy := *log
+ return ©
+}
+
+func (log *Logger) check(lvl zapcore.Level, msg string) *zapcore.CheckedEntry {
+ // check must always be called directly by a method in the Logger interface
+ // (e.g., Check, Info, Fatal).
+ const callerSkipOffset = 2
+
+ // Check the level first to reduce the cost of disabled log calls.
+ // Since Panic and higher may exit, we skip the optimization for those levels.
+ if lvl < zapcore.DPanicLevel && !log.core.Enabled(lvl) {
+ return nil
+ }
+
+ // Create basic checked entry thru the core; this will be non-nil if the
+ // log message will actually be written somewhere.
+ ent := zapcore.Entry{
+ LoggerName: log.name,
+ Time: log.clock.Now(),
+ Level: lvl,
+ Message: msg,
+ }
+ ce := log.core.Check(ent, nil)
+ willWrite := ce != nil
+
+ // Set up any required terminal behavior.
+ switch ent.Level {
+ case zapcore.PanicLevel:
+ ce = ce.Should(ent, zapcore.WriteThenPanic)
+ case zapcore.FatalLevel:
+ onFatal := log.onFatal
+ // Noop is the default value for CheckWriteAction, and it leads to
+ // continued execution after a Fatal which is unexpected.
+ if onFatal == zapcore.WriteThenNoop {
+ onFatal = zapcore.WriteThenFatal
+ }
+ ce = ce.Should(ent, onFatal)
+ case zapcore.DPanicLevel:
+ if log.development {
+ ce = ce.Should(ent, zapcore.WriteThenPanic)
+ }
+ }
+
+ // Only do further annotation if we're going to write this message; checked
+ // entries that exist only for terminal behavior don't benefit from
+ // annotation.
+ if !willWrite {
+ return ce
+ }
+
+ // Thread the error output through to the CheckedEntry.
+ ce.ErrorOutput = log.errorOutput
+ if log.addCaller {
+ frame, defined := getCallerFrame(log.callerSkip + callerSkipOffset)
+ if !defined {
+ fmt.Fprintf(log.errorOutput, "%v Logger.check error: failed to get caller\n", ent.Time.UTC())
+ log.errorOutput.Sync()
+ }
+
+ ce.Entry.Caller = zapcore.EntryCaller{
+ Defined: defined,
+ PC: frame.PC,
+ File: frame.File,
+ Line: frame.Line,
+ Function: frame.Function,
+ }
+ }
+ if log.addStack.Enabled(ce.Entry.Level) {
+ ce.Entry.Stack = StackSkip("", log.callerSkip+callerSkipOffset).String
+ }
+
+ return ce
+}
+
+// getCallerFrame gets caller frame. The argument skip is the number of stack
+// frames to ascend, with 0 identifying the caller of getCallerFrame. The
+// boolean ok is false if it was not possible to recover the information.
+//
+// Note: This implementation is similar to runtime.Caller, but it returns the whole frame.
+func getCallerFrame(skip int) (frame runtime.Frame, ok bool) {
+ const skipOffset = 2 // skip getCallerFrame and Callers
+
+ pc := make([]uintptr, 1)
+ numFrames := runtime.Callers(skip+skipOffset, pc)
+ if numFrames < 1 {
+ return
+ }
+
+ frame, _ = runtime.CallersFrames(pc).Next()
+ return frame, frame.PC != 0
+}
diff --git a/vendor/go.uber.org/zap/options.go b/vendor/go.uber.org/zap/options.go
new file mode 100644
index 0000000..e9e6616
--- /dev/null
+++ b/vendor/go.uber.org/zap/options.go
@@ -0,0 +1,148 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+
+ "go.uber.org/zap/zapcore"
+)
+
+// An Option configures a Logger.
+type Option interface {
+ apply(*Logger)
+}
+
+// optionFunc wraps a func so it satisfies the Option interface.
+type optionFunc func(*Logger)
+
+func (f optionFunc) apply(log *Logger) {
+ f(log)
+}
+
+// WrapCore wraps or replaces the Logger's underlying zapcore.Core.
+func WrapCore(f func(zapcore.Core) zapcore.Core) Option {
+ return optionFunc(func(log *Logger) {
+ log.core = f(log.core)
+ })
+}
+
+// Hooks registers functions which will be called each time the Logger writes
+// out an Entry. Repeated use of Hooks is additive.
+//
+// Hooks are useful for simple side effects, like capturing metrics for the
+// number of emitted logs. More complex side effects, including anything that
+// requires access to the Entry's structured fields, should be implemented as
+// a zapcore.Core instead. See zapcore.RegisterHooks for details.
+func Hooks(hooks ...func(zapcore.Entry) error) Option {
+ return optionFunc(func(log *Logger) {
+ log.core = zapcore.RegisterHooks(log.core, hooks...)
+ })
+}
+
+// Fields adds fields to the Logger.
+func Fields(fs ...Field) Option {
+ return optionFunc(func(log *Logger) {
+ log.core = log.core.With(fs)
+ })
+}
+
+// ErrorOutput sets the destination for errors generated by the Logger. Note
+// that this option only affects internal errors; for sample code that sends
+// error-level logs to a different location from info- and debug-level logs,
+// see the package-level AdvancedConfiguration example.
+//
+// The supplied WriteSyncer must be safe for concurrent use. The Open and
+// zapcore.Lock functions are the simplest ways to protect files with a mutex.
+func ErrorOutput(w zapcore.WriteSyncer) Option {
+ return optionFunc(func(log *Logger) {
+ log.errorOutput = w
+ })
+}
+
+// Development puts the logger in development mode, which makes DPanic-level
+// logs panic instead of simply logging an error.
+func Development() Option {
+ return optionFunc(func(log *Logger) {
+ log.development = true
+ })
+}
+
+// AddCaller configures the Logger to annotate each message with the filename,
+// line number, and function name of zap's caller. See also WithCaller.
+func AddCaller() Option {
+ return WithCaller(true)
+}
+
+// WithCaller configures the Logger to annotate each message with the filename,
+// line number, and function name of zap's caller, or not, depending on the
+// value of enabled. This is a generalized form of AddCaller.
+func WithCaller(enabled bool) Option {
+ return optionFunc(func(log *Logger) {
+ log.addCaller = enabled
+ })
+}
+
+// AddCallerSkip increases the number of callers skipped by caller annotation
+// (as enabled by the AddCaller option). When building wrappers around the
+// Logger and SugaredLogger, supplying this Option prevents zap from always
+// reporting the wrapper code as the caller.
+func AddCallerSkip(skip int) Option {
+ return optionFunc(func(log *Logger) {
+ log.callerSkip += skip
+ })
+}
+
+// AddStacktrace configures the Logger to record a stack trace for all messages at
+// or above a given level.
+func AddStacktrace(lvl zapcore.LevelEnabler) Option {
+ return optionFunc(func(log *Logger) {
+ log.addStack = lvl
+ })
+}
+
+// IncreaseLevel increase the level of the logger. It has no effect if
+// the passed in level tries to decrease the level of the logger.
+func IncreaseLevel(lvl zapcore.LevelEnabler) Option {
+ return optionFunc(func(log *Logger) {
+ core, err := zapcore.NewIncreaseLevelCore(log.core, lvl)
+ if err != nil {
+ fmt.Fprintf(log.errorOutput, "failed to IncreaseLevel: %v\n", err)
+ } else {
+ log.core = core
+ }
+ })
+}
+
+// OnFatal sets the action to take on fatal logs.
+func OnFatal(action zapcore.CheckWriteAction) Option {
+ return optionFunc(func(log *Logger) {
+ log.onFatal = action
+ })
+}
+
+// WithClock specifies the clock used by the logger to determine the current
+// time for logged entries. Defaults to the system clock with time.Now.
+func WithClock(clock zapcore.Clock) Option {
+ return optionFunc(func(log *Logger) {
+ log.clock = clock
+ })
+}
diff --git a/vendor/go.uber.org/zap/sink.go b/vendor/go.uber.org/zap/sink.go
new file mode 100644
index 0000000..df46fa8
--- /dev/null
+++ b/vendor/go.uber.org/zap/sink.go
@@ -0,0 +1,161 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "errors"
+ "fmt"
+ "io"
+ "net/url"
+ "os"
+ "strings"
+ "sync"
+
+ "go.uber.org/zap/zapcore"
+)
+
+const schemeFile = "file"
+
+var (
+ _sinkMutex sync.RWMutex
+ _sinkFactories map[string]func(*url.URL) (Sink, error) // keyed by scheme
+)
+
+func init() {
+ resetSinkRegistry()
+}
+
+func resetSinkRegistry() {
+ _sinkMutex.Lock()
+ defer _sinkMutex.Unlock()
+
+ _sinkFactories = map[string]func(*url.URL) (Sink, error){
+ schemeFile: newFileSink,
+ }
+}
+
+// Sink defines the interface to write to and close logger destinations.
+type Sink interface {
+ zapcore.WriteSyncer
+ io.Closer
+}
+
+type nopCloserSink struct{ zapcore.WriteSyncer }
+
+func (nopCloserSink) Close() error { return nil }
+
+type errSinkNotFound struct {
+ scheme string
+}
+
+func (e *errSinkNotFound) Error() string {
+ return fmt.Sprintf("no sink found for scheme %q", e.scheme)
+}
+
+// RegisterSink registers a user-supplied factory for all sinks with a
+// particular scheme.
+//
+// All schemes must be ASCII, valid under section 3.1 of RFC 3986
+// (https://tools.ietf.org/html/rfc3986#section-3.1), and must not already
+// have a factory registered. Zap automatically registers a factory for the
+// "file" scheme.
+func RegisterSink(scheme string, factory func(*url.URL) (Sink, error)) error {
+ _sinkMutex.Lock()
+ defer _sinkMutex.Unlock()
+
+ if scheme == "" {
+ return errors.New("can't register a sink factory for empty string")
+ }
+ normalized, err := normalizeScheme(scheme)
+ if err != nil {
+ return fmt.Errorf("%q is not a valid scheme: %v", scheme, err)
+ }
+ if _, ok := _sinkFactories[normalized]; ok {
+ return fmt.Errorf("sink factory already registered for scheme %q", normalized)
+ }
+ _sinkFactories[normalized] = factory
+ return nil
+}
+
+func newSink(rawURL string) (Sink, error) {
+ u, err := url.Parse(rawURL)
+ if err != nil {
+ return nil, fmt.Errorf("can't parse %q as a URL: %v", rawURL, err)
+ }
+ if u.Scheme == "" {
+ u.Scheme = schemeFile
+ }
+
+ _sinkMutex.RLock()
+ factory, ok := _sinkFactories[u.Scheme]
+ _sinkMutex.RUnlock()
+ if !ok {
+ return nil, &errSinkNotFound{u.Scheme}
+ }
+ return factory(u)
+}
+
+func newFileSink(u *url.URL) (Sink, error) {
+ if u.User != nil {
+ return nil, fmt.Errorf("user and password not allowed with file URLs: got %v", u)
+ }
+ if u.Fragment != "" {
+ return nil, fmt.Errorf("fragments not allowed with file URLs: got %v", u)
+ }
+ if u.RawQuery != "" {
+ return nil, fmt.Errorf("query parameters not allowed with file URLs: got %v", u)
+ }
+ // Error messages are better if we check hostname and port separately.
+ if u.Port() != "" {
+ return nil, fmt.Errorf("ports not allowed with file URLs: got %v", u)
+ }
+ if hn := u.Hostname(); hn != "" && hn != "localhost" {
+ return nil, fmt.Errorf("file URLs must leave host empty or use localhost: got %v", u)
+ }
+ switch u.Path {
+ case "stdout":
+ return nopCloserSink{os.Stdout}, nil
+ case "stderr":
+ return nopCloserSink{os.Stderr}, nil
+ }
+ return os.OpenFile(u.Path, os.O_WRONLY|os.O_APPEND|os.O_CREATE, 0666)
+}
+
+func normalizeScheme(s string) (string, error) {
+ // https://tools.ietf.org/html/rfc3986#section-3.1
+ s = strings.ToLower(s)
+ if first := s[0]; 'a' > first || 'z' < first {
+ return "", errors.New("must start with a letter")
+ }
+ for i := 1; i < len(s); i++ { // iterate over bytes, not runes
+ c := s[i]
+ switch {
+ case 'a' <= c && c <= 'z':
+ continue
+ case '0' <= c && c <= '9':
+ continue
+ case c == '.' || c == '+' || c == '-':
+ continue
+ }
+ return "", fmt.Errorf("may not contain %q", c)
+ }
+ return s, nil
+}
diff --git a/vendor/go.uber.org/zap/stacktrace.go b/vendor/go.uber.org/zap/stacktrace.go
new file mode 100644
index 0000000..0cf8c1d
--- /dev/null
+++ b/vendor/go.uber.org/zap/stacktrace.go
@@ -0,0 +1,85 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "runtime"
+ "sync"
+
+ "go.uber.org/zap/internal/bufferpool"
+)
+
+var (
+ _stacktracePool = sync.Pool{
+ New: func() interface{} {
+ return newProgramCounters(64)
+ },
+ }
+)
+
+func takeStacktrace(skip int) string {
+ buffer := bufferpool.Get()
+ defer buffer.Free()
+ programCounters := _stacktracePool.Get().(*programCounters)
+ defer _stacktracePool.Put(programCounters)
+
+ var numFrames int
+ for {
+ // Skip the call to runtime.Callers and takeStacktrace so that the
+ // program counters start at the caller of takeStacktrace.
+ numFrames = runtime.Callers(skip+2, programCounters.pcs)
+ if numFrames < len(programCounters.pcs) {
+ break
+ }
+ // Don't put the too-short counter slice back into the pool; this lets
+ // the pool adjust if we consistently take deep stacktraces.
+ programCounters = newProgramCounters(len(programCounters.pcs) * 2)
+ }
+
+ i := 0
+ frames := runtime.CallersFrames(programCounters.pcs[:numFrames])
+
+ // Note: On the last iteration, frames.Next() returns false, with a valid
+ // frame, but we ignore this frame. The last frame is a a runtime frame which
+ // adds noise, since it's only either runtime.main or runtime.goexit.
+ for frame, more := frames.Next(); more; frame, more = frames.Next() {
+ if i != 0 {
+ buffer.AppendByte('\n')
+ }
+ i++
+ buffer.AppendString(frame.Function)
+ buffer.AppendByte('\n')
+ buffer.AppendByte('\t')
+ buffer.AppendString(frame.File)
+ buffer.AppendByte(':')
+ buffer.AppendInt(int64(frame.Line))
+ }
+
+ return buffer.String()
+}
+
+type programCounters struct {
+ pcs []uintptr
+}
+
+func newProgramCounters(size int) *programCounters {
+ return &programCounters{make([]uintptr, size)}
+}
diff --git a/vendor/go.uber.org/zap/sugar.go b/vendor/go.uber.org/zap/sugar.go
new file mode 100644
index 0000000..0b96519
--- /dev/null
+++ b/vendor/go.uber.org/zap/sugar.go
@@ -0,0 +1,315 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+
+ "go.uber.org/zap/zapcore"
+
+ "go.uber.org/multierr"
+)
+
+const (
+ _oddNumberErrMsg = "Ignored key without a value."
+ _nonStringKeyErrMsg = "Ignored key-value pairs with non-string keys."
+)
+
+// A SugaredLogger wraps the base Logger functionality in a slower, but less
+// verbose, API. Any Logger can be converted to a SugaredLogger with its Sugar
+// method.
+//
+// Unlike the Logger, the SugaredLogger doesn't insist on structured logging.
+// For each log level, it exposes three methods: one for loosely-typed
+// structured logging, one for println-style formatting, and one for
+// printf-style formatting. For example, SugaredLoggers can produce InfoLevel
+// output with Infow ("info with" structured context), Info, or Infof.
+type SugaredLogger struct {
+ base *Logger
+}
+
+// Desugar unwraps a SugaredLogger, exposing the original Logger. Desugaring
+// is quite inexpensive, so it's reasonable for a single application to use
+// both Loggers and SugaredLoggers, converting between them on the boundaries
+// of performance-sensitive code.
+func (s *SugaredLogger) Desugar() *Logger {
+ base := s.base.clone()
+ base.callerSkip -= 2
+ return base
+}
+
+// Named adds a sub-scope to the logger's name. See Logger.Named for details.
+func (s *SugaredLogger) Named(name string) *SugaredLogger {
+ return &SugaredLogger{base: s.base.Named(name)}
+}
+
+// With adds a variadic number of fields to the logging context. It accepts a
+// mix of strongly-typed Field objects and loosely-typed key-value pairs. When
+// processing pairs, the first element of the pair is used as the field key
+// and the second as the field value.
+//
+// For example,
+// sugaredLogger.With(
+// "hello", "world",
+// "failure", errors.New("oh no"),
+// Stack(),
+// "count", 42,
+// "user", User{Name: "alice"},
+// )
+// is the equivalent of
+// unsugared.With(
+// String("hello", "world"),
+// String("failure", "oh no"),
+// Stack(),
+// Int("count", 42),
+// Object("user", User{Name: "alice"}),
+// )
+//
+// Note that the keys in key-value pairs should be strings. In development,
+// passing a non-string key panics. In production, the logger is more
+// forgiving: a separate error is logged, but the key-value pair is skipped
+// and execution continues. Passing an orphaned key triggers similar behavior:
+// panics in development and errors in production.
+func (s *SugaredLogger) With(args ...interface{}) *SugaredLogger {
+ return &SugaredLogger{base: s.base.With(s.sweetenFields(args)...)}
+}
+
+// Debug uses fmt.Sprint to construct and log a message.
+func (s *SugaredLogger) Debug(args ...interface{}) {
+ s.log(DebugLevel, "", args, nil)
+}
+
+// Info uses fmt.Sprint to construct and log a message.
+func (s *SugaredLogger) Info(args ...interface{}) {
+ s.log(InfoLevel, "", args, nil)
+}
+
+// Warn uses fmt.Sprint to construct and log a message.
+func (s *SugaredLogger) Warn(args ...interface{}) {
+ s.log(WarnLevel, "", args, nil)
+}
+
+// Error uses fmt.Sprint to construct and log a message.
+func (s *SugaredLogger) Error(args ...interface{}) {
+ s.log(ErrorLevel, "", args, nil)
+}
+
+// DPanic uses fmt.Sprint to construct and log a message. In development, the
+// logger then panics. (See DPanicLevel for details.)
+func (s *SugaredLogger) DPanic(args ...interface{}) {
+ s.log(DPanicLevel, "", args, nil)
+}
+
+// Panic uses fmt.Sprint to construct and log a message, then panics.
+func (s *SugaredLogger) Panic(args ...interface{}) {
+ s.log(PanicLevel, "", args, nil)
+}
+
+// Fatal uses fmt.Sprint to construct and log a message, then calls os.Exit.
+func (s *SugaredLogger) Fatal(args ...interface{}) {
+ s.log(FatalLevel, "", args, nil)
+}
+
+// Debugf uses fmt.Sprintf to log a templated message.
+func (s *SugaredLogger) Debugf(template string, args ...interface{}) {
+ s.log(DebugLevel, template, args, nil)
+}
+
+// Infof uses fmt.Sprintf to log a templated message.
+func (s *SugaredLogger) Infof(template string, args ...interface{}) {
+ s.log(InfoLevel, template, args, nil)
+}
+
+// Warnf uses fmt.Sprintf to log a templated message.
+func (s *SugaredLogger) Warnf(template string, args ...interface{}) {
+ s.log(WarnLevel, template, args, nil)
+}
+
+// Errorf uses fmt.Sprintf to log a templated message.
+func (s *SugaredLogger) Errorf(template string, args ...interface{}) {
+ s.log(ErrorLevel, template, args, nil)
+}
+
+// DPanicf uses fmt.Sprintf to log a templated message. In development, the
+// logger then panics. (See DPanicLevel for details.)
+func (s *SugaredLogger) DPanicf(template string, args ...interface{}) {
+ s.log(DPanicLevel, template, args, nil)
+}
+
+// Panicf uses fmt.Sprintf to log a templated message, then panics.
+func (s *SugaredLogger) Panicf(template string, args ...interface{}) {
+ s.log(PanicLevel, template, args, nil)
+}
+
+// Fatalf uses fmt.Sprintf to log a templated message, then calls os.Exit.
+func (s *SugaredLogger) Fatalf(template string, args ...interface{}) {
+ s.log(FatalLevel, template, args, nil)
+}
+
+// Debugw logs a message with some additional context. The variadic key-value
+// pairs are treated as they are in With.
+//
+// When debug-level logging is disabled, this is much faster than
+// s.With(keysAndValues).Debug(msg)
+func (s *SugaredLogger) Debugw(msg string, keysAndValues ...interface{}) {
+ s.log(DebugLevel, msg, nil, keysAndValues)
+}
+
+// Infow logs a message with some additional context. The variadic key-value
+// pairs are treated as they are in With.
+func (s *SugaredLogger) Infow(msg string, keysAndValues ...interface{}) {
+ s.log(InfoLevel, msg, nil, keysAndValues)
+}
+
+// Warnw logs a message with some additional context. The variadic key-value
+// pairs are treated as they are in With.
+func (s *SugaredLogger) Warnw(msg string, keysAndValues ...interface{}) {
+ s.log(WarnLevel, msg, nil, keysAndValues)
+}
+
+// Errorw logs a message with some additional context. The variadic key-value
+// pairs are treated as they are in With.
+func (s *SugaredLogger) Errorw(msg string, keysAndValues ...interface{}) {
+ s.log(ErrorLevel, msg, nil, keysAndValues)
+}
+
+// DPanicw logs a message with some additional context. In development, the
+// logger then panics. (See DPanicLevel for details.) The variadic key-value
+// pairs are treated as they are in With.
+func (s *SugaredLogger) DPanicw(msg string, keysAndValues ...interface{}) {
+ s.log(DPanicLevel, msg, nil, keysAndValues)
+}
+
+// Panicw logs a message with some additional context, then panics. The
+// variadic key-value pairs are treated as they are in With.
+func (s *SugaredLogger) Panicw(msg string, keysAndValues ...interface{}) {
+ s.log(PanicLevel, msg, nil, keysAndValues)
+}
+
+// Fatalw logs a message with some additional context, then calls os.Exit. The
+// variadic key-value pairs are treated as they are in With.
+func (s *SugaredLogger) Fatalw(msg string, keysAndValues ...interface{}) {
+ s.log(FatalLevel, msg, nil, keysAndValues)
+}
+
+// Sync flushes any buffered log entries.
+func (s *SugaredLogger) Sync() error {
+ return s.base.Sync()
+}
+
+func (s *SugaredLogger) log(lvl zapcore.Level, template string, fmtArgs []interface{}, context []interface{}) {
+ // If logging at this level is completely disabled, skip the overhead of
+ // string formatting.
+ if lvl < DPanicLevel && !s.base.Core().Enabled(lvl) {
+ return
+ }
+
+ msg := getMessage(template, fmtArgs)
+ if ce := s.base.Check(lvl, msg); ce != nil {
+ ce.Write(s.sweetenFields(context)...)
+ }
+}
+
+// getMessage format with Sprint, Sprintf, or neither.
+func getMessage(template string, fmtArgs []interface{}) string {
+ if len(fmtArgs) == 0 {
+ return template
+ }
+
+ if template != "" {
+ return fmt.Sprintf(template, fmtArgs...)
+ }
+
+ if len(fmtArgs) == 1 {
+ if str, ok := fmtArgs[0].(string); ok {
+ return str
+ }
+ }
+ return fmt.Sprint(fmtArgs...)
+}
+
+func (s *SugaredLogger) sweetenFields(args []interface{}) []Field {
+ if len(args) == 0 {
+ return nil
+ }
+
+ // Allocate enough space for the worst case; if users pass only structured
+ // fields, we shouldn't penalize them with extra allocations.
+ fields := make([]Field, 0, len(args))
+ var invalid invalidPairs
+
+ for i := 0; i < len(args); {
+ // This is a strongly-typed field. Consume it and move on.
+ if f, ok := args[i].(Field); ok {
+ fields = append(fields, f)
+ i++
+ continue
+ }
+
+ // Make sure this element isn't a dangling key.
+ if i == len(args)-1 {
+ s.base.Error(_oddNumberErrMsg, Any("ignored", args[i]))
+ break
+ }
+
+ // Consume this value and the next, treating them as a key-value pair. If the
+ // key isn't a string, add this pair to the slice of invalid pairs.
+ key, val := args[i], args[i+1]
+ if keyStr, ok := key.(string); !ok {
+ // Subsequent errors are likely, so allocate once up front.
+ if cap(invalid) == 0 {
+ invalid = make(invalidPairs, 0, len(args)/2)
+ }
+ invalid = append(invalid, invalidPair{i, key, val})
+ } else {
+ fields = append(fields, Any(keyStr, val))
+ }
+ i += 2
+ }
+
+ // If we encountered any invalid key-value pairs, log an error.
+ if len(invalid) > 0 {
+ s.base.Error(_nonStringKeyErrMsg, Array("invalid", invalid))
+ }
+ return fields
+}
+
+type invalidPair struct {
+ position int
+ key, value interface{}
+}
+
+func (p invalidPair) MarshalLogObject(enc zapcore.ObjectEncoder) error {
+ enc.AddInt64("position", int64(p.position))
+ Any("key", p.key).AddTo(enc)
+ Any("value", p.value).AddTo(enc)
+ return nil
+}
+
+type invalidPairs []invalidPair
+
+func (ps invalidPairs) MarshalLogArray(enc zapcore.ArrayEncoder) error {
+ var err error
+ for i := range ps {
+ err = multierr.Append(err, enc.AppendObject(ps[i]))
+ }
+ return err
+}
diff --git a/vendor/go.uber.org/zap/time.go b/vendor/go.uber.org/zap/time.go
new file mode 100644
index 0000000..c5a1f16
--- /dev/null
+++ b/vendor/go.uber.org/zap/time.go
@@ -0,0 +1,27 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import "time"
+
+func timeToMillis(t time.Time) int64 {
+ return t.UnixNano() / int64(time.Millisecond)
+}
diff --git a/vendor/go.uber.org/zap/writer.go b/vendor/go.uber.org/zap/writer.go
new file mode 100644
index 0000000..86a709a
--- /dev/null
+++ b/vendor/go.uber.org/zap/writer.go
@@ -0,0 +1,99 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zap
+
+import (
+ "fmt"
+ "io"
+ "io/ioutil"
+
+ "go.uber.org/zap/zapcore"
+
+ "go.uber.org/multierr"
+)
+
+// Open is a high-level wrapper that takes a variadic number of URLs, opens or
+// creates each of the specified resources, and combines them into a locked
+// WriteSyncer. It also returns any error encountered and a function to close
+// any opened files.
+//
+// Passing no URLs returns a no-op WriteSyncer. Zap handles URLs without a
+// scheme and URLs with the "file" scheme. Third-party code may register
+// factories for other schemes using RegisterSink.
+//
+// URLs with the "file" scheme must use absolute paths on the local
+// filesystem. No user, password, port, fragments, or query parameters are
+// allowed, and the hostname must be empty or "localhost".
+//
+// Since it's common to write logs to the local filesystem, URLs without a
+// scheme (e.g., "/var/log/foo.log") are treated as local file paths. Without
+// a scheme, the special paths "stdout" and "stderr" are interpreted as
+// os.Stdout and os.Stderr. When specified without a scheme, relative file
+// paths also work.
+func Open(paths ...string) (zapcore.WriteSyncer, func(), error) {
+ writers, close, err := open(paths)
+ if err != nil {
+ return nil, nil, err
+ }
+
+ writer := CombineWriteSyncers(writers...)
+ return writer, close, nil
+}
+
+func open(paths []string) ([]zapcore.WriteSyncer, func(), error) {
+ writers := make([]zapcore.WriteSyncer, 0, len(paths))
+ closers := make([]io.Closer, 0, len(paths))
+ close := func() {
+ for _, c := range closers {
+ c.Close()
+ }
+ }
+
+ var openErr error
+ for _, path := range paths {
+ sink, err := newSink(path)
+ if err != nil {
+ openErr = multierr.Append(openErr, fmt.Errorf("couldn't open sink %q: %v", path, err))
+ continue
+ }
+ writers = append(writers, sink)
+ closers = append(closers, sink)
+ }
+ if openErr != nil {
+ close()
+ return writers, nil, openErr
+ }
+
+ return writers, close, nil
+}
+
+// CombineWriteSyncers is a utility that combines multiple WriteSyncers into a
+// single, locked WriteSyncer. If no inputs are supplied, it returns a no-op
+// WriteSyncer.
+//
+// It's provided purely as a convenience; the result is no different from
+// using zapcore.NewMultiWriteSyncer and zapcore.Lock individually.
+func CombineWriteSyncers(writers ...zapcore.WriteSyncer) zapcore.WriteSyncer {
+ if len(writers) == 0 {
+ return zapcore.AddSync(ioutil.Discard)
+ }
+ return zapcore.Lock(zapcore.NewMultiWriteSyncer(writers...))
+}
diff --git a/vendor/go.uber.org/zap/zapcore/buffered_write_syncer.go b/vendor/go.uber.org/zap/zapcore/buffered_write_syncer.go
new file mode 100644
index 0000000..0c1436f
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/buffered_write_syncer.go
@@ -0,0 +1,188 @@
+// Copyright (c) 2021 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "bufio"
+ "sync"
+ "time"
+
+ "go.uber.org/multierr"
+)
+
+const (
+ // _defaultBufferSize specifies the default size used by Buffer.
+ _defaultBufferSize = 256 * 1024 // 256 kB
+
+ // _defaultFlushInterval specifies the default flush interval for
+ // Buffer.
+ _defaultFlushInterval = 30 * time.Second
+)
+
+// A BufferedWriteSyncer is a WriteSyncer that buffers writes in-memory before
+// flushing them to a wrapped WriteSyncer after reaching some limit, or at some
+// fixed interval--whichever comes first.
+//
+// BufferedWriteSyncer is safe for concurrent use. You don't need to use
+// zapcore.Lock for WriteSyncers with BufferedWriteSyncer.
+type BufferedWriteSyncer struct {
+ // WS is the WriteSyncer around which BufferedWriteSyncer will buffer
+ // writes.
+ //
+ // This field is required.
+ WS WriteSyncer
+
+ // Size specifies the maximum amount of data the writer will buffered
+ // before flushing.
+ //
+ // Defaults to 256 kB if unspecified.
+ Size int
+
+ // FlushInterval specifies how often the writer should flush data if
+ // there have been no writes.
+ //
+ // Defaults to 30 seconds if unspecified.
+ FlushInterval time.Duration
+
+ // Clock, if specified, provides control of the source of time for the
+ // writer.
+ //
+ // Defaults to the system clock.
+ Clock Clock
+
+ // unexported fields for state
+ mu sync.Mutex
+ initialized bool // whether initialize() has run
+ writer *bufio.Writer
+ ticker *time.Ticker
+ stop chan struct{} // closed when flushLoop should stop
+ stopped bool // whether Stop() has run
+ done chan struct{} // closed when flushLoop has stopped
+}
+
+func (s *BufferedWriteSyncer) initialize() {
+ size := s.Size
+ if size == 0 {
+ size = _defaultBufferSize
+ }
+
+ flushInterval := s.FlushInterval
+ if flushInterval == 0 {
+ flushInterval = _defaultFlushInterval
+ }
+
+ if s.Clock == nil {
+ s.Clock = DefaultClock
+ }
+
+ s.ticker = s.Clock.NewTicker(flushInterval)
+ s.writer = bufio.NewWriterSize(s.WS, size)
+ s.stop = make(chan struct{})
+ s.done = make(chan struct{})
+ s.initialized = true
+ go s.flushLoop()
+}
+
+// Write writes log data into buffer syncer directly, multiple Write calls will be batched,
+// and log data will be flushed to disk when the buffer is full or periodically.
+func (s *BufferedWriteSyncer) Write(bs []byte) (int, error) {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+
+ if !s.initialized {
+ s.initialize()
+ }
+
+ // To avoid partial writes from being flushed, we manually flush the existing buffer if:
+ // * The current write doesn't fit into the buffer fully, and
+ // * The buffer is not empty (since bufio will not split large writes when the buffer is empty)
+ if len(bs) > s.writer.Available() && s.writer.Buffered() > 0 {
+ if err := s.writer.Flush(); err != nil {
+ return 0, err
+ }
+ }
+
+ return s.writer.Write(bs)
+}
+
+// Sync flushes buffered log data into disk directly.
+func (s *BufferedWriteSyncer) Sync() error {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+
+ var err error
+ if s.initialized {
+ err = s.writer.Flush()
+ }
+
+ return multierr.Append(err, s.WS.Sync())
+}
+
+// flushLoop flushes the buffer at the configured interval until Stop is
+// called.
+func (s *BufferedWriteSyncer) flushLoop() {
+ defer close(s.done)
+
+ for {
+ select {
+ case <-s.ticker.C:
+ // we just simply ignore error here
+ // because the underlying bufio writer stores any errors
+ // and we return any error from Sync() as part of the close
+ _ = s.Sync()
+ case <-s.stop:
+ return
+ }
+ }
+}
+
+// Stop closes the buffer, cleans up background goroutines, and flushes
+// remaining unwritten data.
+func (s *BufferedWriteSyncer) Stop() (err error) {
+ var stopped bool
+
+ // Critical section.
+ func() {
+ s.mu.Lock()
+ defer s.mu.Unlock()
+
+ if !s.initialized {
+ return
+ }
+
+ stopped = s.stopped
+ if stopped {
+ return
+ }
+ s.stopped = true
+
+ s.ticker.Stop()
+ close(s.stop) // tell flushLoop to stop
+ <-s.done // and wait until it has
+ }()
+
+ // Don't call Sync on consecutive Stops.
+ if !stopped {
+ err = s.Sync()
+ }
+
+ return err
+}
diff --git a/vendor/go.uber.org/zap/zapcore/clock.go b/vendor/go.uber.org/zap/zapcore/clock.go
new file mode 100644
index 0000000..d2ea95b
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/clock.go
@@ -0,0 +1,50 @@
+// Copyright (c) 2021 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "time"
+)
+
+// DefaultClock is the default clock used by Zap in operations that require
+// time. This clock uses the system clock for all operations.
+var DefaultClock = systemClock{}
+
+// Clock is a source of time for logged entries.
+type Clock interface {
+ // Now returns the current local time.
+ Now() time.Time
+
+ // NewTicker returns *time.Ticker that holds a channel
+ // that delivers "ticks" of a clock.
+ NewTicker(time.Duration) *time.Ticker
+}
+
+// systemClock implements default Clock that uses system time.
+type systemClock struct{}
+
+func (systemClock) Now() time.Time {
+ return time.Now()
+}
+
+func (systemClock) NewTicker(duration time.Duration) *time.Ticker {
+ return time.NewTicker(duration)
+}
diff --git a/vendor/go.uber.org/zap/zapcore/console_encoder.go b/vendor/go.uber.org/zap/zapcore/console_encoder.go
new file mode 100644
index 0000000..2307af4
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/console_encoder.go
@@ -0,0 +1,161 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "fmt"
+ "sync"
+
+ "go.uber.org/zap/buffer"
+ "go.uber.org/zap/internal/bufferpool"
+)
+
+var _sliceEncoderPool = sync.Pool{
+ New: func() interface{} {
+ return &sliceArrayEncoder{elems: make([]interface{}, 0, 2)}
+ },
+}
+
+func getSliceEncoder() *sliceArrayEncoder {
+ return _sliceEncoderPool.Get().(*sliceArrayEncoder)
+}
+
+func putSliceEncoder(e *sliceArrayEncoder) {
+ e.elems = e.elems[:0]
+ _sliceEncoderPool.Put(e)
+}
+
+type consoleEncoder struct {
+ *jsonEncoder
+}
+
+// NewConsoleEncoder creates an encoder whose output is designed for human -
+// rather than machine - consumption. It serializes the core log entry data
+// (message, level, timestamp, etc.) in a plain-text format and leaves the
+// structured context as JSON.
+//
+// Note that although the console encoder doesn't use the keys specified in the
+// encoder configuration, it will omit any element whose key is set to the empty
+// string.
+func NewConsoleEncoder(cfg EncoderConfig) Encoder {
+ if cfg.ConsoleSeparator == "" {
+ // Use a default delimiter of '\t' for backwards compatibility
+ cfg.ConsoleSeparator = "\t"
+ }
+ return consoleEncoder{newJSONEncoder(cfg, true)}
+}
+
+func (c consoleEncoder) Clone() Encoder {
+ return consoleEncoder{c.jsonEncoder.Clone().(*jsonEncoder)}
+}
+
+func (c consoleEncoder) EncodeEntry(ent Entry, fields []Field) (*buffer.Buffer, error) {
+ line := bufferpool.Get()
+
+ // We don't want the entry's metadata to be quoted and escaped (if it's
+ // encoded as strings), which means that we can't use the JSON encoder. The
+ // simplest option is to use the memory encoder and fmt.Fprint.
+ //
+ // If this ever becomes a performance bottleneck, we can implement
+ // ArrayEncoder for our plain-text format.
+ arr := getSliceEncoder()
+ if c.TimeKey != "" && c.EncodeTime != nil {
+ c.EncodeTime(ent.Time, arr)
+ }
+ if c.LevelKey != "" && c.EncodeLevel != nil {
+ c.EncodeLevel(ent.Level, arr)
+ }
+ if ent.LoggerName != "" && c.NameKey != "" {
+ nameEncoder := c.EncodeName
+
+ if nameEncoder == nil {
+ // Fall back to FullNameEncoder for backward compatibility.
+ nameEncoder = FullNameEncoder
+ }
+
+ nameEncoder(ent.LoggerName, arr)
+ }
+ if ent.Caller.Defined {
+ if c.CallerKey != "" && c.EncodeCaller != nil {
+ c.EncodeCaller(ent.Caller, arr)
+ }
+ if c.FunctionKey != "" {
+ arr.AppendString(ent.Caller.Function)
+ }
+ }
+ for i := range arr.elems {
+ if i > 0 {
+ line.AppendString(c.ConsoleSeparator)
+ }
+ fmt.Fprint(line, arr.elems[i])
+ }
+ putSliceEncoder(arr)
+
+ // Add the message itself.
+ if c.MessageKey != "" {
+ c.addSeparatorIfNecessary(line)
+ line.AppendString(ent.Message)
+ }
+
+ // Add any structured context.
+ c.writeContext(line, fields)
+
+ // If there's no stacktrace key, honor that; this allows users to force
+ // single-line output.
+ if ent.Stack != "" && c.StacktraceKey != "" {
+ line.AppendByte('\n')
+ line.AppendString(ent.Stack)
+ }
+
+ if c.LineEnding != "" {
+ line.AppendString(c.LineEnding)
+ } else {
+ line.AppendString(DefaultLineEnding)
+ }
+ return line, nil
+}
+
+func (c consoleEncoder) writeContext(line *buffer.Buffer, extra []Field) {
+ context := c.jsonEncoder.Clone().(*jsonEncoder)
+ defer func() {
+ // putJSONEncoder assumes the buffer is still used, but we write out the buffer so
+ // we can free it.
+ context.buf.Free()
+ putJSONEncoder(context)
+ }()
+
+ addFields(context, extra)
+ context.closeOpenNamespaces()
+ if context.buf.Len() == 0 {
+ return
+ }
+
+ c.addSeparatorIfNecessary(line)
+ line.AppendByte('{')
+ line.Write(context.buf.Bytes())
+ line.AppendByte('}')
+}
+
+func (c consoleEncoder) addSeparatorIfNecessary(line *buffer.Buffer) {
+ if line.Len() > 0 {
+ line.AppendString(c.ConsoleSeparator)
+ }
+}
diff --git a/vendor/go.uber.org/zap/zapcore/core.go b/vendor/go.uber.org/zap/zapcore/core.go
new file mode 100644
index 0000000..a1ef8b0
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/core.go
@@ -0,0 +1,113 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+// Core is a minimal, fast logger interface. It's designed for library authors
+// to wrap in a more user-friendly API.
+type Core interface {
+ LevelEnabler
+
+ // With adds structured context to the Core.
+ With([]Field) Core
+ // Check determines whether the supplied Entry should be logged (using the
+ // embedded LevelEnabler and possibly some extra logic). If the entry
+ // should be logged, the Core adds itself to the CheckedEntry and returns
+ // the result.
+ //
+ // Callers must use Check before calling Write.
+ Check(Entry, *CheckedEntry) *CheckedEntry
+ // Write serializes the Entry and any Fields supplied at the log site and
+ // writes them to their destination.
+ //
+ // If called, Write should always log the Entry and Fields; it should not
+ // replicate the logic of Check.
+ Write(Entry, []Field) error
+ // Sync flushes buffered logs (if any).
+ Sync() error
+}
+
+type nopCore struct{}
+
+// NewNopCore returns a no-op Core.
+func NewNopCore() Core { return nopCore{} }
+func (nopCore) Enabled(Level) bool { return false }
+func (n nopCore) With([]Field) Core { return n }
+func (nopCore) Check(_ Entry, ce *CheckedEntry) *CheckedEntry { return ce }
+func (nopCore) Write(Entry, []Field) error { return nil }
+func (nopCore) Sync() error { return nil }
+
+// NewCore creates a Core that writes logs to a WriteSyncer.
+func NewCore(enc Encoder, ws WriteSyncer, enab LevelEnabler) Core {
+ return &ioCore{
+ LevelEnabler: enab,
+ enc: enc,
+ out: ws,
+ }
+}
+
+type ioCore struct {
+ LevelEnabler
+ enc Encoder
+ out WriteSyncer
+}
+
+func (c *ioCore) With(fields []Field) Core {
+ clone := c.clone()
+ addFields(clone.enc, fields)
+ return clone
+}
+
+func (c *ioCore) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
+ if c.Enabled(ent.Level) {
+ return ce.AddCore(ent, c)
+ }
+ return ce
+}
+
+func (c *ioCore) Write(ent Entry, fields []Field) error {
+ buf, err := c.enc.EncodeEntry(ent, fields)
+ if err != nil {
+ return err
+ }
+ _, err = c.out.Write(buf.Bytes())
+ buf.Free()
+ if err != nil {
+ return err
+ }
+ if ent.Level > ErrorLevel {
+ // Since we may be crashing the program, sync the output. Ignore Sync
+ // errors, pending a clean solution to issue #370.
+ c.Sync()
+ }
+ return nil
+}
+
+func (c *ioCore) Sync() error {
+ return c.out.Sync()
+}
+
+func (c *ioCore) clone() *ioCore {
+ return &ioCore{
+ LevelEnabler: c.LevelEnabler,
+ enc: c.enc.Clone(),
+ out: c.out,
+ }
+}
diff --git a/vendor/go.uber.org/zap/zapcore/doc.go b/vendor/go.uber.org/zap/zapcore/doc.go
new file mode 100644
index 0000000..31000e9
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/doc.go
@@ -0,0 +1,24 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+// Package zapcore defines and implements the low-level interfaces upon which
+// zap is built. By providing alternate implementations of these interfaces,
+// external packages can extend zap's capabilities.
+package zapcore // import "go.uber.org/zap/zapcore"
diff --git a/vendor/go.uber.org/zap/zapcore/encoder.go b/vendor/go.uber.org/zap/zapcore/encoder.go
new file mode 100644
index 0000000..6601ca1
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/encoder.go
@@ -0,0 +1,443 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "encoding/json"
+ "time"
+
+ "go.uber.org/zap/buffer"
+)
+
+// DefaultLineEnding defines the default line ending when writing logs.
+// Alternate line endings specified in EncoderConfig can override this
+// behavior.
+const DefaultLineEnding = "\n"
+
+// OmitKey defines the key to use when callers want to remove a key from log output.
+const OmitKey = ""
+
+// A LevelEncoder serializes a Level to a primitive type.
+type LevelEncoder func(Level, PrimitiveArrayEncoder)
+
+// LowercaseLevelEncoder serializes a Level to a lowercase string. For example,
+// InfoLevel is serialized to "info".
+func LowercaseLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
+ enc.AppendString(l.String())
+}
+
+// LowercaseColorLevelEncoder serializes a Level to a lowercase string and adds coloring.
+// For example, InfoLevel is serialized to "info" and colored blue.
+func LowercaseColorLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
+ s, ok := _levelToLowercaseColorString[l]
+ if !ok {
+ s = _unknownLevelColor.Add(l.String())
+ }
+ enc.AppendString(s)
+}
+
+// CapitalLevelEncoder serializes a Level to an all-caps string. For example,
+// InfoLevel is serialized to "INFO".
+func CapitalLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
+ enc.AppendString(l.CapitalString())
+}
+
+// CapitalColorLevelEncoder serializes a Level to an all-caps string and adds color.
+// For example, InfoLevel is serialized to "INFO" and colored blue.
+func CapitalColorLevelEncoder(l Level, enc PrimitiveArrayEncoder) {
+ s, ok := _levelToCapitalColorString[l]
+ if !ok {
+ s = _unknownLevelColor.Add(l.CapitalString())
+ }
+ enc.AppendString(s)
+}
+
+// UnmarshalText unmarshals text to a LevelEncoder. "capital" is unmarshaled to
+// CapitalLevelEncoder, "coloredCapital" is unmarshaled to CapitalColorLevelEncoder,
+// "colored" is unmarshaled to LowercaseColorLevelEncoder, and anything else
+// is unmarshaled to LowercaseLevelEncoder.
+func (e *LevelEncoder) UnmarshalText(text []byte) error {
+ switch string(text) {
+ case "capital":
+ *e = CapitalLevelEncoder
+ case "capitalColor":
+ *e = CapitalColorLevelEncoder
+ case "color":
+ *e = LowercaseColorLevelEncoder
+ default:
+ *e = LowercaseLevelEncoder
+ }
+ return nil
+}
+
+// A TimeEncoder serializes a time.Time to a primitive type.
+type TimeEncoder func(time.Time, PrimitiveArrayEncoder)
+
+// EpochTimeEncoder serializes a time.Time to a floating-point number of seconds
+// since the Unix epoch.
+func EpochTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ nanos := t.UnixNano()
+ sec := float64(nanos) / float64(time.Second)
+ enc.AppendFloat64(sec)
+}
+
+// EpochMillisTimeEncoder serializes a time.Time to a floating-point number of
+// milliseconds since the Unix epoch.
+func EpochMillisTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ nanos := t.UnixNano()
+ millis := float64(nanos) / float64(time.Millisecond)
+ enc.AppendFloat64(millis)
+}
+
+// EpochNanosTimeEncoder serializes a time.Time to an integer number of
+// nanoseconds since the Unix epoch.
+func EpochNanosTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ enc.AppendInt64(t.UnixNano())
+}
+
+func encodeTimeLayout(t time.Time, layout string, enc PrimitiveArrayEncoder) {
+ type appendTimeEncoder interface {
+ AppendTimeLayout(time.Time, string)
+ }
+
+ if enc, ok := enc.(appendTimeEncoder); ok {
+ enc.AppendTimeLayout(t, layout)
+ return
+ }
+
+ enc.AppendString(t.Format(layout))
+}
+
+// ISO8601TimeEncoder serializes a time.Time to an ISO8601-formatted string
+// with millisecond precision.
+//
+// If enc supports AppendTimeLayout(t time.Time,layout string), it's used
+// instead of appending a pre-formatted string value.
+func ISO8601TimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ encodeTimeLayout(t, "2006-01-02T15:04:05.000Z0700", enc)
+}
+
+// RFC3339TimeEncoder serializes a time.Time to an RFC3339-formatted string.
+//
+// If enc supports AppendTimeLayout(t time.Time,layout string), it's used
+// instead of appending a pre-formatted string value.
+func RFC3339TimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ encodeTimeLayout(t, time.RFC3339, enc)
+}
+
+// RFC3339NanoTimeEncoder serializes a time.Time to an RFC3339-formatted string
+// with nanosecond precision.
+//
+// If enc supports AppendTimeLayout(t time.Time,layout string), it's used
+// instead of appending a pre-formatted string value.
+func RFC3339NanoTimeEncoder(t time.Time, enc PrimitiveArrayEncoder) {
+ encodeTimeLayout(t, time.RFC3339Nano, enc)
+}
+
+// TimeEncoderOfLayout returns TimeEncoder which serializes a time.Time using
+// given layout.
+func TimeEncoderOfLayout(layout string) TimeEncoder {
+ return func(t time.Time, enc PrimitiveArrayEncoder) {
+ encodeTimeLayout(t, layout, enc)
+ }
+}
+
+// UnmarshalText unmarshals text to a TimeEncoder.
+// "rfc3339nano" and "RFC3339Nano" are unmarshaled to RFC3339NanoTimeEncoder.
+// "rfc3339" and "RFC3339" are unmarshaled to RFC3339TimeEncoder.
+// "iso8601" and "ISO8601" are unmarshaled to ISO8601TimeEncoder.
+// "millis" is unmarshaled to EpochMillisTimeEncoder.
+// "nanos" is unmarshaled to EpochNanosEncoder.
+// Anything else is unmarshaled to EpochTimeEncoder.
+func (e *TimeEncoder) UnmarshalText(text []byte) error {
+ switch string(text) {
+ case "rfc3339nano", "RFC3339Nano":
+ *e = RFC3339NanoTimeEncoder
+ case "rfc3339", "RFC3339":
+ *e = RFC3339TimeEncoder
+ case "iso8601", "ISO8601":
+ *e = ISO8601TimeEncoder
+ case "millis":
+ *e = EpochMillisTimeEncoder
+ case "nanos":
+ *e = EpochNanosTimeEncoder
+ default:
+ *e = EpochTimeEncoder
+ }
+ return nil
+}
+
+// UnmarshalYAML unmarshals YAML to a TimeEncoder.
+// If value is an object with a "layout" field, it will be unmarshaled to TimeEncoder with given layout.
+// timeEncoder:
+// layout: 06/01/02 03:04pm
+// If value is string, it uses UnmarshalText.
+// timeEncoder: iso8601
+func (e *TimeEncoder) UnmarshalYAML(unmarshal func(interface{}) error) error {
+ var o struct {
+ Layout string `json:"layout" yaml:"layout"`
+ }
+ if err := unmarshal(&o); err == nil {
+ *e = TimeEncoderOfLayout(o.Layout)
+ return nil
+ }
+
+ var s string
+ if err := unmarshal(&s); err != nil {
+ return err
+ }
+ return e.UnmarshalText([]byte(s))
+}
+
+// UnmarshalJSON unmarshals JSON to a TimeEncoder as same way UnmarshalYAML does.
+func (e *TimeEncoder) UnmarshalJSON(data []byte) error {
+ return e.UnmarshalYAML(func(v interface{}) error {
+ return json.Unmarshal(data, v)
+ })
+}
+
+// A DurationEncoder serializes a time.Duration to a primitive type.
+type DurationEncoder func(time.Duration, PrimitiveArrayEncoder)
+
+// SecondsDurationEncoder serializes a time.Duration to a floating-point number of seconds elapsed.
+func SecondsDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
+ enc.AppendFloat64(float64(d) / float64(time.Second))
+}
+
+// NanosDurationEncoder serializes a time.Duration to an integer number of
+// nanoseconds elapsed.
+func NanosDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
+ enc.AppendInt64(int64(d))
+}
+
+// MillisDurationEncoder serializes a time.Duration to an integer number of
+// milliseconds elapsed.
+func MillisDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
+ enc.AppendInt64(d.Nanoseconds() / 1e6)
+}
+
+// StringDurationEncoder serializes a time.Duration using its built-in String
+// method.
+func StringDurationEncoder(d time.Duration, enc PrimitiveArrayEncoder) {
+ enc.AppendString(d.String())
+}
+
+// UnmarshalText unmarshals text to a DurationEncoder. "string" is unmarshaled
+// to StringDurationEncoder, and anything else is unmarshaled to
+// NanosDurationEncoder.
+func (e *DurationEncoder) UnmarshalText(text []byte) error {
+ switch string(text) {
+ case "string":
+ *e = StringDurationEncoder
+ case "nanos":
+ *e = NanosDurationEncoder
+ case "ms":
+ *e = MillisDurationEncoder
+ default:
+ *e = SecondsDurationEncoder
+ }
+ return nil
+}
+
+// A CallerEncoder serializes an EntryCaller to a primitive type.
+type CallerEncoder func(EntryCaller, PrimitiveArrayEncoder)
+
+// FullCallerEncoder serializes a caller in /full/path/to/package/file:line
+// format.
+func FullCallerEncoder(caller EntryCaller, enc PrimitiveArrayEncoder) {
+ // TODO: consider using a byte-oriented API to save an allocation.
+ enc.AppendString(caller.String())
+}
+
+// ShortCallerEncoder serializes a caller in package/file:line format, trimming
+// all but the final directory from the full path.
+func ShortCallerEncoder(caller EntryCaller, enc PrimitiveArrayEncoder) {
+ // TODO: consider using a byte-oriented API to save an allocation.
+ enc.AppendString(caller.TrimmedPath())
+}
+
+// UnmarshalText unmarshals text to a CallerEncoder. "full" is unmarshaled to
+// FullCallerEncoder and anything else is unmarshaled to ShortCallerEncoder.
+func (e *CallerEncoder) UnmarshalText(text []byte) error {
+ switch string(text) {
+ case "full":
+ *e = FullCallerEncoder
+ default:
+ *e = ShortCallerEncoder
+ }
+ return nil
+}
+
+// A NameEncoder serializes a period-separated logger name to a primitive
+// type.
+type NameEncoder func(string, PrimitiveArrayEncoder)
+
+// FullNameEncoder serializes the logger name as-is.
+func FullNameEncoder(loggerName string, enc PrimitiveArrayEncoder) {
+ enc.AppendString(loggerName)
+}
+
+// UnmarshalText unmarshals text to a NameEncoder. Currently, everything is
+// unmarshaled to FullNameEncoder.
+func (e *NameEncoder) UnmarshalText(text []byte) error {
+ switch string(text) {
+ case "full":
+ *e = FullNameEncoder
+ default:
+ *e = FullNameEncoder
+ }
+ return nil
+}
+
+// An EncoderConfig allows users to configure the concrete encoders supplied by
+// zapcore.
+type EncoderConfig struct {
+ // Set the keys used for each log entry. If any key is empty, that portion
+ // of the entry is omitted.
+ MessageKey string `json:"messageKey" yaml:"messageKey"`
+ LevelKey string `json:"levelKey" yaml:"levelKey"`
+ TimeKey string `json:"timeKey" yaml:"timeKey"`
+ NameKey string `json:"nameKey" yaml:"nameKey"`
+ CallerKey string `json:"callerKey" yaml:"callerKey"`
+ FunctionKey string `json:"functionKey" yaml:"functionKey"`
+ StacktraceKey string `json:"stacktraceKey" yaml:"stacktraceKey"`
+ LineEnding string `json:"lineEnding" yaml:"lineEnding"`
+ // Configure the primitive representations of common complex types. For
+ // example, some users may want all time.Times serialized as floating-point
+ // seconds since epoch, while others may prefer ISO8601 strings.
+ EncodeLevel LevelEncoder `json:"levelEncoder" yaml:"levelEncoder"`
+ EncodeTime TimeEncoder `json:"timeEncoder" yaml:"timeEncoder"`
+ EncodeDuration DurationEncoder `json:"durationEncoder" yaml:"durationEncoder"`
+ EncodeCaller CallerEncoder `json:"callerEncoder" yaml:"callerEncoder"`
+ // Unlike the other primitive type encoders, EncodeName is optional. The
+ // zero value falls back to FullNameEncoder.
+ EncodeName NameEncoder `json:"nameEncoder" yaml:"nameEncoder"`
+ // Configures the field separator used by the console encoder. Defaults
+ // to tab.
+ ConsoleSeparator string `json:"consoleSeparator" yaml:"consoleSeparator"`
+}
+
+// ObjectEncoder is a strongly-typed, encoding-agnostic interface for adding a
+// map- or struct-like object to the logging context. Like maps, ObjectEncoders
+// aren't safe for concurrent use (though typical use shouldn't require locks).
+type ObjectEncoder interface {
+ // Logging-specific marshalers.
+ AddArray(key string, marshaler ArrayMarshaler) error
+ AddObject(key string, marshaler ObjectMarshaler) error
+
+ // Built-in types.
+ AddBinary(key string, value []byte) // for arbitrary bytes
+ AddByteString(key string, value []byte) // for UTF-8 encoded bytes
+ AddBool(key string, value bool)
+ AddComplex128(key string, value complex128)
+ AddComplex64(key string, value complex64)
+ AddDuration(key string, value time.Duration)
+ AddFloat64(key string, value float64)
+ AddFloat32(key string, value float32)
+ AddInt(key string, value int)
+ AddInt64(key string, value int64)
+ AddInt32(key string, value int32)
+ AddInt16(key string, value int16)
+ AddInt8(key string, value int8)
+ AddString(key, value string)
+ AddTime(key string, value time.Time)
+ AddUint(key string, value uint)
+ AddUint64(key string, value uint64)
+ AddUint32(key string, value uint32)
+ AddUint16(key string, value uint16)
+ AddUint8(key string, value uint8)
+ AddUintptr(key string, value uintptr)
+
+ // AddReflected uses reflection to serialize arbitrary objects, so it can be
+ // slow and allocation-heavy.
+ AddReflected(key string, value interface{}) error
+ // OpenNamespace opens an isolated namespace where all subsequent fields will
+ // be added. Applications can use namespaces to prevent key collisions when
+ // injecting loggers into sub-components or third-party libraries.
+ OpenNamespace(key string)
+}
+
+// ArrayEncoder is a strongly-typed, encoding-agnostic interface for adding
+// array-like objects to the logging context. Of note, it supports mixed-type
+// arrays even though they aren't typical in Go. Like slices, ArrayEncoders
+// aren't safe for concurrent use (though typical use shouldn't require locks).
+type ArrayEncoder interface {
+ // Built-in types.
+ PrimitiveArrayEncoder
+
+ // Time-related types.
+ AppendDuration(time.Duration)
+ AppendTime(time.Time)
+
+ // Logging-specific marshalers.
+ AppendArray(ArrayMarshaler) error
+ AppendObject(ObjectMarshaler) error
+
+ // AppendReflected uses reflection to serialize arbitrary objects, so it's
+ // slow and allocation-heavy.
+ AppendReflected(value interface{}) error
+}
+
+// PrimitiveArrayEncoder is the subset of the ArrayEncoder interface that deals
+// only in Go's built-in types. It's included only so that Duration- and
+// TimeEncoders cannot trigger infinite recursion.
+type PrimitiveArrayEncoder interface {
+ // Built-in types.
+ AppendBool(bool)
+ AppendByteString([]byte) // for UTF-8 encoded bytes
+ AppendComplex128(complex128)
+ AppendComplex64(complex64)
+ AppendFloat64(float64)
+ AppendFloat32(float32)
+ AppendInt(int)
+ AppendInt64(int64)
+ AppendInt32(int32)
+ AppendInt16(int16)
+ AppendInt8(int8)
+ AppendString(string)
+ AppendUint(uint)
+ AppendUint64(uint64)
+ AppendUint32(uint32)
+ AppendUint16(uint16)
+ AppendUint8(uint8)
+ AppendUintptr(uintptr)
+}
+
+// Encoder is a format-agnostic interface for all log entry marshalers. Since
+// log encoders don't need to support the same wide range of use cases as
+// general-purpose marshalers, it's possible to make them faster and
+// lower-allocation.
+//
+// Implementations of the ObjectEncoder interface's methods can, of course,
+// freely modify the receiver. However, the Clone and EncodeEntry methods will
+// be called concurrently and shouldn't modify the receiver.
+type Encoder interface {
+ ObjectEncoder
+
+ // Clone copies the encoder, ensuring that adding fields to the copy doesn't
+ // affect the original.
+ Clone() Encoder
+
+ // EncodeEntry encodes an entry and fields, along with any accumulated
+ // context, into a byte buffer and returns it. Any fields that are empty,
+ // including fields on the `Entry` type, should be omitted.
+ EncodeEntry(Entry, []Field) (*buffer.Buffer, error)
+}
diff --git a/vendor/go.uber.org/zap/zapcore/entry.go b/vendor/go.uber.org/zap/zapcore/entry.go
new file mode 100644
index 0000000..2d815fe
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/entry.go
@@ -0,0 +1,264 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "fmt"
+ "runtime"
+ "strings"
+ "sync"
+ "time"
+
+ "go.uber.org/zap/internal/bufferpool"
+ "go.uber.org/zap/internal/exit"
+
+ "go.uber.org/multierr"
+)
+
+var (
+ _cePool = sync.Pool{New: func() interface{} {
+ // Pre-allocate some space for cores.
+ return &CheckedEntry{
+ cores: make([]Core, 4),
+ }
+ }}
+)
+
+func getCheckedEntry() *CheckedEntry {
+ ce := _cePool.Get().(*CheckedEntry)
+ ce.reset()
+ return ce
+}
+
+func putCheckedEntry(ce *CheckedEntry) {
+ if ce == nil {
+ return
+ }
+ _cePool.Put(ce)
+}
+
+// NewEntryCaller makes an EntryCaller from the return signature of
+// runtime.Caller.
+func NewEntryCaller(pc uintptr, file string, line int, ok bool) EntryCaller {
+ if !ok {
+ return EntryCaller{}
+ }
+ return EntryCaller{
+ PC: pc,
+ File: file,
+ Line: line,
+ Defined: true,
+ }
+}
+
+// EntryCaller represents the caller of a logging function.
+type EntryCaller struct {
+ Defined bool
+ PC uintptr
+ File string
+ Line int
+ Function string
+}
+
+// String returns the full path and line number of the caller.
+func (ec EntryCaller) String() string {
+ return ec.FullPath()
+}
+
+// FullPath returns a /full/path/to/package/file:line description of the
+// caller.
+func (ec EntryCaller) FullPath() string {
+ if !ec.Defined {
+ return "undefined"
+ }
+ buf := bufferpool.Get()
+ buf.AppendString(ec.File)
+ buf.AppendByte(':')
+ buf.AppendInt(int64(ec.Line))
+ caller := buf.String()
+ buf.Free()
+ return caller
+}
+
+// TrimmedPath returns a package/file:line description of the caller,
+// preserving only the leaf directory name and file name.
+func (ec EntryCaller) TrimmedPath() string {
+ if !ec.Defined {
+ return "undefined"
+ }
+ // nb. To make sure we trim the path correctly on Windows too, we
+ // counter-intuitively need to use '/' and *not* os.PathSeparator here,
+ // because the path given originates from Go stdlib, specifically
+ // runtime.Caller() which (as of Mar/17) returns forward slashes even on
+ // Windows.
+ //
+ // See https://github.com/golang/go/issues/3335
+ // and https://github.com/golang/go/issues/18151
+ //
+ // for discussion on the issue on Go side.
+ //
+ // Find the last separator.
+ //
+ idx := strings.LastIndexByte(ec.File, '/')
+ if idx == -1 {
+ return ec.FullPath()
+ }
+ // Find the penultimate separator.
+ idx = strings.LastIndexByte(ec.File[:idx], '/')
+ if idx == -1 {
+ return ec.FullPath()
+ }
+ buf := bufferpool.Get()
+ // Keep everything after the penultimate separator.
+ buf.AppendString(ec.File[idx+1:])
+ buf.AppendByte(':')
+ buf.AppendInt(int64(ec.Line))
+ caller := buf.String()
+ buf.Free()
+ return caller
+}
+
+// An Entry represents a complete log message. The entry's structured context
+// is already serialized, but the log level, time, message, and call site
+// information are available for inspection and modification. Any fields left
+// empty will be omitted when encoding.
+//
+// Entries are pooled, so any functions that accept them MUST be careful not to
+// retain references to them.
+type Entry struct {
+ Level Level
+ Time time.Time
+ LoggerName string
+ Message string
+ Caller EntryCaller
+ Stack string
+}
+
+// CheckWriteAction indicates what action to take after a log entry is
+// processed. Actions are ordered in increasing severity.
+type CheckWriteAction uint8
+
+const (
+ // WriteThenNoop indicates that nothing special needs to be done. It's the
+ // default behavior.
+ WriteThenNoop CheckWriteAction = iota
+ // WriteThenGoexit runs runtime.Goexit after Write.
+ WriteThenGoexit
+ // WriteThenPanic causes a panic after Write.
+ WriteThenPanic
+ // WriteThenFatal causes a fatal os.Exit after Write.
+ WriteThenFatal
+)
+
+// CheckedEntry is an Entry together with a collection of Cores that have
+// already agreed to log it.
+//
+// CheckedEntry references should be created by calling AddCore or Should on a
+// nil *CheckedEntry. References are returned to a pool after Write, and MUST
+// NOT be retained after calling their Write method.
+type CheckedEntry struct {
+ Entry
+ ErrorOutput WriteSyncer
+ dirty bool // best-effort detection of pool misuse
+ should CheckWriteAction
+ cores []Core
+}
+
+func (ce *CheckedEntry) reset() {
+ ce.Entry = Entry{}
+ ce.ErrorOutput = nil
+ ce.dirty = false
+ ce.should = WriteThenNoop
+ for i := range ce.cores {
+ // don't keep references to cores
+ ce.cores[i] = nil
+ }
+ ce.cores = ce.cores[:0]
+}
+
+// Write writes the entry to the stored Cores, returns any errors, and returns
+// the CheckedEntry reference to a pool for immediate re-use. Finally, it
+// executes any required CheckWriteAction.
+func (ce *CheckedEntry) Write(fields ...Field) {
+ if ce == nil {
+ return
+ }
+
+ if ce.dirty {
+ if ce.ErrorOutput != nil {
+ // Make a best effort to detect unsafe re-use of this CheckedEntry.
+ // If the entry is dirty, log an internal error; because the
+ // CheckedEntry is being used after it was returned to the pool,
+ // the message may be an amalgamation from multiple call sites.
+ fmt.Fprintf(ce.ErrorOutput, "%v Unsafe CheckedEntry re-use near Entry %+v.\n", ce.Time, ce.Entry)
+ ce.ErrorOutput.Sync()
+ }
+ return
+ }
+ ce.dirty = true
+
+ var err error
+ for i := range ce.cores {
+ err = multierr.Append(err, ce.cores[i].Write(ce.Entry, fields))
+ }
+ if ce.ErrorOutput != nil {
+ if err != nil {
+ fmt.Fprintf(ce.ErrorOutput, "%v write error: %v\n", ce.Time, err)
+ ce.ErrorOutput.Sync()
+ }
+ }
+
+ should, msg := ce.should, ce.Message
+ putCheckedEntry(ce)
+
+ switch should {
+ case WriteThenPanic:
+ panic(msg)
+ case WriteThenFatal:
+ exit.Exit()
+ case WriteThenGoexit:
+ runtime.Goexit()
+ }
+}
+
+// AddCore adds a Core that has agreed to log this CheckedEntry. It's intended to be
+// used by Core.Check implementations, and is safe to call on nil CheckedEntry
+// references.
+func (ce *CheckedEntry) AddCore(ent Entry, core Core) *CheckedEntry {
+ if ce == nil {
+ ce = getCheckedEntry()
+ ce.Entry = ent
+ }
+ ce.cores = append(ce.cores, core)
+ return ce
+}
+
+// Should sets this CheckedEntry's CheckWriteAction, which controls whether a
+// Core will panic or fatal after writing this log entry. Like AddCore, it's
+// safe to call on nil CheckedEntry references.
+func (ce *CheckedEntry) Should(ent Entry, should CheckWriteAction) *CheckedEntry {
+ if ce == nil {
+ ce = getCheckedEntry()
+ ce.Entry = ent
+ }
+ ce.should = should
+ return ce
+}
diff --git a/vendor/go.uber.org/zap/zapcore/error.go b/vendor/go.uber.org/zap/zapcore/error.go
new file mode 100644
index 0000000..f2a07d7
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/error.go
@@ -0,0 +1,132 @@
+// Copyright (c) 2017 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "fmt"
+ "reflect"
+ "sync"
+)
+
+// Encodes the given error into fields of an object. A field with the given
+// name is added for the error message.
+//
+// If the error implements fmt.Formatter, a field with the name ${key}Verbose
+// is also added with the full verbose error message.
+//
+// Finally, if the error implements errorGroup (from go.uber.org/multierr) or
+// causer (from github.com/pkg/errors), a ${key}Causes field is added with an
+// array of objects containing the errors this error was comprised of.
+//
+// {
+// "error": err.Error(),
+// "errorVerbose": fmt.Sprintf("%+v", err),
+// "errorCauses": [
+// ...
+// ],
+// }
+func encodeError(key string, err error, enc ObjectEncoder) (retErr error) {
+ // Try to capture panics (from nil references or otherwise) when calling
+ // the Error() method
+ defer func() {
+ if rerr := recover(); rerr != nil {
+ // If it's a nil pointer, just say "<nil>". The likeliest causes are a
+ // error that fails to guard against nil or a nil pointer for a
+ // value receiver, and in either case, "<nil>" is a nice result.
+ if v := reflect.ValueOf(err); v.Kind() == reflect.Ptr && v.IsNil() {
+ enc.AddString(key, "<nil>")
+ return
+ }
+
+ retErr = fmt.Errorf("PANIC=%v", rerr)
+ }
+ }()
+
+ basic := err.Error()
+ enc.AddString(key, basic)
+
+ switch e := err.(type) {
+ case errorGroup:
+ return enc.AddArray(key+"Causes", errArray(e.Errors()))
+ case fmt.Formatter:
+ verbose := fmt.Sprintf("%+v", e)
+ if verbose != basic {
+ // This is a rich error type, like those produced by
+ // github.com/pkg/errors.
+ enc.AddString(key+"Verbose", verbose)
+ }
+ }
+ return nil
+}
+
+type errorGroup interface {
+ // Provides read-only access to the underlying list of errors, preferably
+ // without causing any allocs.
+ Errors() []error
+}
+
+// Note that errArry and errArrayElem are very similar to the version
+// implemented in the top-level error.go file. We can't re-use this because
+// that would require exporting errArray as part of the zapcore API.
+
+// Encodes a list of errors using the standard error encoding logic.
+type errArray []error
+
+func (errs errArray) MarshalLogArray(arr ArrayEncoder) error {
+ for i := range errs {
+ if errs[i] == nil {
+ continue
+ }
+
+ el := newErrArrayElem(errs[i])
+ arr.AppendObject(el)
+ el.Free()
+ }
+ return nil
+}
+
+var _errArrayElemPool = sync.Pool{New: func() interface{} {
+ return &errArrayElem{}
+}}
+
+// Encodes any error into a {"error": ...} re-using the same errors logic.
+//
+// May be passed in place of an array to build a single-element array.
+type errArrayElem struct{ err error }
+
+func newErrArrayElem(err error) *errArrayElem {
+ e := _errArrayElemPool.Get().(*errArrayElem)
+ e.err = err
+ return e
+}
+
+func (e *errArrayElem) MarshalLogArray(arr ArrayEncoder) error {
+ return arr.AppendObject(e)
+}
+
+func (e *errArrayElem) MarshalLogObject(enc ObjectEncoder) error {
+ return encodeError("error", e.err, enc)
+}
+
+func (e *errArrayElem) Free() {
+ e.err = nil
+ _errArrayElemPool.Put(e)
+}
diff --git a/vendor/go.uber.org/zap/zapcore/field.go b/vendor/go.uber.org/zap/zapcore/field.go
new file mode 100644
index 0000000..95bdb0a
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/field.go
@@ -0,0 +1,233 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "bytes"
+ "fmt"
+ "math"
+ "reflect"
+ "time"
+)
+
+// A FieldType indicates which member of the Field union struct should be used
+// and how it should be serialized.
+type FieldType uint8
+
+const (
+ // UnknownType is the default field type. Attempting to add it to an encoder will panic.
+ UnknownType FieldType = iota
+ // ArrayMarshalerType indicates that the field carries an ArrayMarshaler.
+ ArrayMarshalerType
+ // ObjectMarshalerType indicates that the field carries an ObjectMarshaler.
+ ObjectMarshalerType
+ // BinaryType indicates that the field carries an opaque binary blob.
+ BinaryType
+ // BoolType indicates that the field carries a bool.
+ BoolType
+ // ByteStringType indicates that the field carries UTF-8 encoded bytes.
+ ByteStringType
+ // Complex128Type indicates that the field carries a complex128.
+ Complex128Type
+ // Complex64Type indicates that the field carries a complex128.
+ Complex64Type
+ // DurationType indicates that the field carries a time.Duration.
+ DurationType
+ // Float64Type indicates that the field carries a float64.
+ Float64Type
+ // Float32Type indicates that the field carries a float32.
+ Float32Type
+ // Int64Type indicates that the field carries an int64.
+ Int64Type
+ // Int32Type indicates that the field carries an int32.
+ Int32Type
+ // Int16Type indicates that the field carries an int16.
+ Int16Type
+ // Int8Type indicates that the field carries an int8.
+ Int8Type
+ // StringType indicates that the field carries a string.
+ StringType
+ // TimeType indicates that the field carries a time.Time that is
+ // representable by a UnixNano() stored as an int64.
+ TimeType
+ // TimeFullType indicates that the field carries a time.Time stored as-is.
+ TimeFullType
+ // Uint64Type indicates that the field carries a uint64.
+ Uint64Type
+ // Uint32Type indicates that the field carries a uint32.
+ Uint32Type
+ // Uint16Type indicates that the field carries a uint16.
+ Uint16Type
+ // Uint8Type indicates that the field carries a uint8.
+ Uint8Type
+ // UintptrType indicates that the field carries a uintptr.
+ UintptrType
+ // ReflectType indicates that the field carries an interface{}, which should
+ // be serialized using reflection.
+ ReflectType
+ // NamespaceType signals the beginning of an isolated namespace. All
+ // subsequent fields should be added to the new namespace.
+ NamespaceType
+ // StringerType indicates that the field carries a fmt.Stringer.
+ StringerType
+ // ErrorType indicates that the field carries an error.
+ ErrorType
+ // SkipType indicates that the field is a no-op.
+ SkipType
+
+ // InlineMarshalerType indicates that the field carries an ObjectMarshaler
+ // that should be inlined.
+ InlineMarshalerType
+)
+
+// A Field is a marshaling operation used to add a key-value pair to a logger's
+// context. Most fields are lazily marshaled, so it's inexpensive to add fields
+// to disabled debug-level log statements.
+type Field struct {
+ Key string
+ Type FieldType
+ Integer int64
+ String string
+ Interface interface{}
+}
+
+// AddTo exports a field through the ObjectEncoder interface. It's primarily
+// useful to library authors, and shouldn't be necessary in most applications.
+func (f Field) AddTo(enc ObjectEncoder) {
+ var err error
+
+ switch f.Type {
+ case ArrayMarshalerType:
+ err = enc.AddArray(f.Key, f.Interface.(ArrayMarshaler))
+ case ObjectMarshalerType:
+ err = enc.AddObject(f.Key, f.Interface.(ObjectMarshaler))
+ case InlineMarshalerType:
+ err = f.Interface.(ObjectMarshaler).MarshalLogObject(enc)
+ case BinaryType:
+ enc.AddBinary(f.Key, f.Interface.([]byte))
+ case BoolType:
+ enc.AddBool(f.Key, f.Integer == 1)
+ case ByteStringType:
+ enc.AddByteString(f.Key, f.Interface.([]byte))
+ case Complex128Type:
+ enc.AddComplex128(f.Key, f.Interface.(complex128))
+ case Complex64Type:
+ enc.AddComplex64(f.Key, f.Interface.(complex64))
+ case DurationType:
+ enc.AddDuration(f.Key, time.Duration(f.Integer))
+ case Float64Type:
+ enc.AddFloat64(f.Key, math.Float64frombits(uint64(f.Integer)))
+ case Float32Type:
+ enc.AddFloat32(f.Key, math.Float32frombits(uint32(f.Integer)))
+ case Int64Type:
+ enc.AddInt64(f.Key, f.Integer)
+ case Int32Type:
+ enc.AddInt32(f.Key, int32(f.Integer))
+ case Int16Type:
+ enc.AddInt16(f.Key, int16(f.Integer))
+ case Int8Type:
+ enc.AddInt8(f.Key, int8(f.Integer))
+ case StringType:
+ enc.AddString(f.Key, f.String)
+ case TimeType:
+ if f.Interface != nil {
+ enc.AddTime(f.Key, time.Unix(0, f.Integer).In(f.Interface.(*time.Location)))
+ } else {
+ // Fall back to UTC if location is nil.
+ enc.AddTime(f.Key, time.Unix(0, f.Integer))
+ }
+ case TimeFullType:
+ enc.AddTime(f.Key, f.Interface.(time.Time))
+ case Uint64Type:
+ enc.AddUint64(f.Key, uint64(f.Integer))
+ case Uint32Type:
+ enc.AddUint32(f.Key, uint32(f.Integer))
+ case Uint16Type:
+ enc.AddUint16(f.Key, uint16(f.Integer))
+ case Uint8Type:
+ enc.AddUint8(f.Key, uint8(f.Integer))
+ case UintptrType:
+ enc.AddUintptr(f.Key, uintptr(f.Integer))
+ case ReflectType:
+ err = enc.AddReflected(f.Key, f.Interface)
+ case NamespaceType:
+ enc.OpenNamespace(f.Key)
+ case StringerType:
+ err = encodeStringer(f.Key, f.Interface, enc)
+ case ErrorType:
+ err = encodeError(f.Key, f.Interface.(error), enc)
+ case SkipType:
+ break
+ default:
+ panic(fmt.Sprintf("unknown field type: %v", f))
+ }
+
+ if err != nil {
+ enc.AddString(fmt.Sprintf("%sError", f.Key), err.Error())
+ }
+}
+
+// Equals returns whether two fields are equal. For non-primitive types such as
+// errors, marshalers, or reflect types, it uses reflect.DeepEqual.
+func (f Field) Equals(other Field) bool {
+ if f.Type != other.Type {
+ return false
+ }
+ if f.Key != other.Key {
+ return false
+ }
+
+ switch f.Type {
+ case BinaryType, ByteStringType:
+ return bytes.Equal(f.Interface.([]byte), other.Interface.([]byte))
+ case ArrayMarshalerType, ObjectMarshalerType, ErrorType, ReflectType:
+ return reflect.DeepEqual(f.Interface, other.Interface)
+ default:
+ return f == other
+ }
+}
+
+func addFields(enc ObjectEncoder, fields []Field) {
+ for i := range fields {
+ fields[i].AddTo(enc)
+ }
+}
+
+func encodeStringer(key string, stringer interface{}, enc ObjectEncoder) (retErr error) {
+ // Try to capture panics (from nil references or otherwise) when calling
+ // the String() method, similar to https://golang.org/src/fmt/print.go#L540
+ defer func() {
+ if err := recover(); err != nil {
+ // If it's a nil pointer, just say "<nil>". The likeliest causes are a
+ // Stringer that fails to guard against nil or a nil pointer for a
+ // value receiver, and in either case, "<nil>" is a nice result.
+ if v := reflect.ValueOf(stringer); v.Kind() == reflect.Ptr && v.IsNil() {
+ enc.AddString(key, "<nil>")
+ return
+ }
+
+ retErr = fmt.Errorf("PANIC=%v", err)
+ }
+ }()
+
+ enc.AddString(key, stringer.(fmt.Stringer).String())
+ return nil
+}
diff --git a/vendor/go.uber.org/zap/zapcore/hook.go b/vendor/go.uber.org/zap/zapcore/hook.go
new file mode 100644
index 0000000..5db4afb
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/hook.go
@@ -0,0 +1,68 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import "go.uber.org/multierr"
+
+type hooked struct {
+ Core
+ funcs []func(Entry) error
+}
+
+// RegisterHooks wraps a Core and runs a collection of user-defined callback
+// hooks each time a message is logged. Execution of the callbacks is blocking.
+//
+// This offers users an easy way to register simple callbacks (e.g., metrics
+// collection) without implementing the full Core interface.
+func RegisterHooks(core Core, hooks ...func(Entry) error) Core {
+ funcs := append([]func(Entry) error{}, hooks...)
+ return &hooked{
+ Core: core,
+ funcs: funcs,
+ }
+}
+
+func (h *hooked) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
+ // Let the wrapped Core decide whether to log this message or not. This
+ // also gives the downstream a chance to register itself directly with the
+ // CheckedEntry.
+ if downstream := h.Core.Check(ent, ce); downstream != nil {
+ return downstream.AddCore(ent, h)
+ }
+ return ce
+}
+
+func (h *hooked) With(fields []Field) Core {
+ return &hooked{
+ Core: h.Core.With(fields),
+ funcs: h.funcs,
+ }
+}
+
+func (h *hooked) Write(ent Entry, _ []Field) error {
+ // Since our downstream had a chance to register itself directly with the
+ // CheckedMessage, we don't need to call it here.
+ var err error
+ for i := range h.funcs {
+ err = multierr.Append(err, h.funcs[i](ent))
+ }
+ return err
+}
diff --git a/vendor/go.uber.org/zap/zapcore/increase_level.go b/vendor/go.uber.org/zap/zapcore/increase_level.go
new file mode 100644
index 0000000..5a17492
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/increase_level.go
@@ -0,0 +1,66 @@
+// Copyright (c) 2020 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import "fmt"
+
+type levelFilterCore struct {
+ core Core
+ level LevelEnabler
+}
+
+// NewIncreaseLevelCore creates a core that can be used to increase the level of
+// an existing Core. It cannot be used to decrease the logging level, as it acts
+// as a filter before calling the underlying core. If level decreases the log level,
+// an error is returned.
+func NewIncreaseLevelCore(core Core, level LevelEnabler) (Core, error) {
+ for l := _maxLevel; l >= _minLevel; l-- {
+ if !core.Enabled(l) && level.Enabled(l) {
+ return nil, fmt.Errorf("invalid increase level, as level %q is allowed by increased level, but not by existing core", l)
+ }
+ }
+
+ return &levelFilterCore{core, level}, nil
+}
+
+func (c *levelFilterCore) Enabled(lvl Level) bool {
+ return c.level.Enabled(lvl)
+}
+
+func (c *levelFilterCore) With(fields []Field) Core {
+ return &levelFilterCore{c.core.With(fields), c.level}
+}
+
+func (c *levelFilterCore) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
+ if !c.Enabled(ent.Level) {
+ return ce
+ }
+
+ return c.core.Check(ent, ce)
+}
+
+func (c *levelFilterCore) Write(ent Entry, fields []Field) error {
+ return c.core.Write(ent, fields)
+}
+
+func (c *levelFilterCore) Sync() error {
+ return c.core.Sync()
+}
diff --git a/vendor/go.uber.org/zap/zapcore/json_encoder.go b/vendor/go.uber.org/zap/zapcore/json_encoder.go
new file mode 100644
index 0000000..5cf7d91
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/json_encoder.go
@@ -0,0 +1,534 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "encoding/base64"
+ "encoding/json"
+ "math"
+ "sync"
+ "time"
+ "unicode/utf8"
+
+ "go.uber.org/zap/buffer"
+ "go.uber.org/zap/internal/bufferpool"
+)
+
+// For JSON-escaping; see jsonEncoder.safeAddString below.
+const _hex = "0123456789abcdef"
+
+var _jsonPool = sync.Pool{New: func() interface{} {
+ return &jsonEncoder{}
+}}
+
+func getJSONEncoder() *jsonEncoder {
+ return _jsonPool.Get().(*jsonEncoder)
+}
+
+func putJSONEncoder(enc *jsonEncoder) {
+ if enc.reflectBuf != nil {
+ enc.reflectBuf.Free()
+ }
+ enc.EncoderConfig = nil
+ enc.buf = nil
+ enc.spaced = false
+ enc.openNamespaces = 0
+ enc.reflectBuf = nil
+ enc.reflectEnc = nil
+ _jsonPool.Put(enc)
+}
+
+type jsonEncoder struct {
+ *EncoderConfig
+ buf *buffer.Buffer
+ spaced bool // include spaces after colons and commas
+ openNamespaces int
+
+ // for encoding generic values by reflection
+ reflectBuf *buffer.Buffer
+ reflectEnc *json.Encoder
+}
+
+// NewJSONEncoder creates a fast, low-allocation JSON encoder. The encoder
+// appropriately escapes all field keys and values.
+//
+// Note that the encoder doesn't deduplicate keys, so it's possible to produce
+// a message like
+// {"foo":"bar","foo":"baz"}
+// This is permitted by the JSON specification, but not encouraged. Many
+// libraries will ignore duplicate key-value pairs (typically keeping the last
+// pair) when unmarshaling, but users should attempt to avoid adding duplicate
+// keys.
+func NewJSONEncoder(cfg EncoderConfig) Encoder {
+ return newJSONEncoder(cfg, false)
+}
+
+func newJSONEncoder(cfg EncoderConfig, spaced bool) *jsonEncoder {
+ return &jsonEncoder{
+ EncoderConfig: &cfg,
+ buf: bufferpool.Get(),
+ spaced: spaced,
+ }
+}
+
+func (enc *jsonEncoder) AddArray(key string, arr ArrayMarshaler) error {
+ enc.addKey(key)
+ return enc.AppendArray(arr)
+}
+
+func (enc *jsonEncoder) AddObject(key string, obj ObjectMarshaler) error {
+ enc.addKey(key)
+ return enc.AppendObject(obj)
+}
+
+func (enc *jsonEncoder) AddBinary(key string, val []byte) {
+ enc.AddString(key, base64.StdEncoding.EncodeToString(val))
+}
+
+func (enc *jsonEncoder) AddByteString(key string, val []byte) {
+ enc.addKey(key)
+ enc.AppendByteString(val)
+}
+
+func (enc *jsonEncoder) AddBool(key string, val bool) {
+ enc.addKey(key)
+ enc.AppendBool(val)
+}
+
+func (enc *jsonEncoder) AddComplex128(key string, val complex128) {
+ enc.addKey(key)
+ enc.AppendComplex128(val)
+}
+
+func (enc *jsonEncoder) AddDuration(key string, val time.Duration) {
+ enc.addKey(key)
+ enc.AppendDuration(val)
+}
+
+func (enc *jsonEncoder) AddFloat64(key string, val float64) {
+ enc.addKey(key)
+ enc.AppendFloat64(val)
+}
+
+func (enc *jsonEncoder) AddInt64(key string, val int64) {
+ enc.addKey(key)
+ enc.AppendInt64(val)
+}
+
+func (enc *jsonEncoder) resetReflectBuf() {
+ if enc.reflectBuf == nil {
+ enc.reflectBuf = bufferpool.Get()
+ enc.reflectEnc = json.NewEncoder(enc.reflectBuf)
+
+ // For consistency with our custom JSON encoder.
+ enc.reflectEnc.SetEscapeHTML(false)
+ } else {
+ enc.reflectBuf.Reset()
+ }
+}
+
+var nullLiteralBytes = []byte("null")
+
+// Only invoke the standard JSON encoder if there is actually something to
+// encode; otherwise write JSON null literal directly.
+func (enc *jsonEncoder) encodeReflected(obj interface{}) ([]byte, error) {
+ if obj == nil {
+ return nullLiteralBytes, nil
+ }
+ enc.resetReflectBuf()
+ if err := enc.reflectEnc.Encode(obj); err != nil {
+ return nil, err
+ }
+ enc.reflectBuf.TrimNewline()
+ return enc.reflectBuf.Bytes(), nil
+}
+
+func (enc *jsonEncoder) AddReflected(key string, obj interface{}) error {
+ valueBytes, err := enc.encodeReflected(obj)
+ if err != nil {
+ return err
+ }
+ enc.addKey(key)
+ _, err = enc.buf.Write(valueBytes)
+ return err
+}
+
+func (enc *jsonEncoder) OpenNamespace(key string) {
+ enc.addKey(key)
+ enc.buf.AppendByte('{')
+ enc.openNamespaces++
+}
+
+func (enc *jsonEncoder) AddString(key, val string) {
+ enc.addKey(key)
+ enc.AppendString(val)
+}
+
+func (enc *jsonEncoder) AddTime(key string, val time.Time) {
+ enc.addKey(key)
+ enc.AppendTime(val)
+}
+
+func (enc *jsonEncoder) AddUint64(key string, val uint64) {
+ enc.addKey(key)
+ enc.AppendUint64(val)
+}
+
+func (enc *jsonEncoder) AppendArray(arr ArrayMarshaler) error {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('[')
+ err := arr.MarshalLogArray(enc)
+ enc.buf.AppendByte(']')
+ return err
+}
+
+func (enc *jsonEncoder) AppendObject(obj ObjectMarshaler) error {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('{')
+ err := obj.MarshalLogObject(enc)
+ enc.buf.AppendByte('}')
+ return err
+}
+
+func (enc *jsonEncoder) AppendBool(val bool) {
+ enc.addElementSeparator()
+ enc.buf.AppendBool(val)
+}
+
+func (enc *jsonEncoder) AppendByteString(val []byte) {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('"')
+ enc.safeAddByteString(val)
+ enc.buf.AppendByte('"')
+}
+
+func (enc *jsonEncoder) AppendComplex128(val complex128) {
+ enc.addElementSeparator()
+ // Cast to a platform-independent, fixed-size type.
+ r, i := float64(real(val)), float64(imag(val))
+ enc.buf.AppendByte('"')
+ // Because we're always in a quoted string, we can use strconv without
+ // special-casing NaN and +/-Inf.
+ enc.buf.AppendFloat(r, 64)
+ enc.buf.AppendByte('+')
+ enc.buf.AppendFloat(i, 64)
+ enc.buf.AppendByte('i')
+ enc.buf.AppendByte('"')
+}
+
+func (enc *jsonEncoder) AppendDuration(val time.Duration) {
+ cur := enc.buf.Len()
+ if e := enc.EncodeDuration; e != nil {
+ e(val, enc)
+ }
+ if cur == enc.buf.Len() {
+ // User-supplied EncodeDuration is a no-op. Fall back to nanoseconds to keep
+ // JSON valid.
+ enc.AppendInt64(int64(val))
+ }
+}
+
+func (enc *jsonEncoder) AppendInt64(val int64) {
+ enc.addElementSeparator()
+ enc.buf.AppendInt(val)
+}
+
+func (enc *jsonEncoder) AppendReflected(val interface{}) error {
+ valueBytes, err := enc.encodeReflected(val)
+ if err != nil {
+ return err
+ }
+ enc.addElementSeparator()
+ _, err = enc.buf.Write(valueBytes)
+ return err
+}
+
+func (enc *jsonEncoder) AppendString(val string) {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('"')
+ enc.safeAddString(val)
+ enc.buf.AppendByte('"')
+}
+
+func (enc *jsonEncoder) AppendTimeLayout(time time.Time, layout string) {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('"')
+ enc.buf.AppendTime(time, layout)
+ enc.buf.AppendByte('"')
+}
+
+func (enc *jsonEncoder) AppendTime(val time.Time) {
+ cur := enc.buf.Len()
+ if e := enc.EncodeTime; e != nil {
+ e(val, enc)
+ }
+ if cur == enc.buf.Len() {
+ // User-supplied EncodeTime is a no-op. Fall back to nanos since epoch to keep
+ // output JSON valid.
+ enc.AppendInt64(val.UnixNano())
+ }
+}
+
+func (enc *jsonEncoder) AppendUint64(val uint64) {
+ enc.addElementSeparator()
+ enc.buf.AppendUint(val)
+}
+
+func (enc *jsonEncoder) AddComplex64(k string, v complex64) { enc.AddComplex128(k, complex128(v)) }
+func (enc *jsonEncoder) AddFloat32(k string, v float32) { enc.AddFloat64(k, float64(v)) }
+func (enc *jsonEncoder) AddInt(k string, v int) { enc.AddInt64(k, int64(v)) }
+func (enc *jsonEncoder) AddInt32(k string, v int32) { enc.AddInt64(k, int64(v)) }
+func (enc *jsonEncoder) AddInt16(k string, v int16) { enc.AddInt64(k, int64(v)) }
+func (enc *jsonEncoder) AddInt8(k string, v int8) { enc.AddInt64(k, int64(v)) }
+func (enc *jsonEncoder) AddUint(k string, v uint) { enc.AddUint64(k, uint64(v)) }
+func (enc *jsonEncoder) AddUint32(k string, v uint32) { enc.AddUint64(k, uint64(v)) }
+func (enc *jsonEncoder) AddUint16(k string, v uint16) { enc.AddUint64(k, uint64(v)) }
+func (enc *jsonEncoder) AddUint8(k string, v uint8) { enc.AddUint64(k, uint64(v)) }
+func (enc *jsonEncoder) AddUintptr(k string, v uintptr) { enc.AddUint64(k, uint64(v)) }
+func (enc *jsonEncoder) AppendComplex64(v complex64) { enc.AppendComplex128(complex128(v)) }
+func (enc *jsonEncoder) AppendFloat64(v float64) { enc.appendFloat(v, 64) }
+func (enc *jsonEncoder) AppendFloat32(v float32) { enc.appendFloat(float64(v), 32) }
+func (enc *jsonEncoder) AppendInt(v int) { enc.AppendInt64(int64(v)) }
+func (enc *jsonEncoder) AppendInt32(v int32) { enc.AppendInt64(int64(v)) }
+func (enc *jsonEncoder) AppendInt16(v int16) { enc.AppendInt64(int64(v)) }
+func (enc *jsonEncoder) AppendInt8(v int8) { enc.AppendInt64(int64(v)) }
+func (enc *jsonEncoder) AppendUint(v uint) { enc.AppendUint64(uint64(v)) }
+func (enc *jsonEncoder) AppendUint32(v uint32) { enc.AppendUint64(uint64(v)) }
+func (enc *jsonEncoder) AppendUint16(v uint16) { enc.AppendUint64(uint64(v)) }
+func (enc *jsonEncoder) AppendUint8(v uint8) { enc.AppendUint64(uint64(v)) }
+func (enc *jsonEncoder) AppendUintptr(v uintptr) { enc.AppendUint64(uint64(v)) }
+
+func (enc *jsonEncoder) Clone() Encoder {
+ clone := enc.clone()
+ clone.buf.Write(enc.buf.Bytes())
+ return clone
+}
+
+func (enc *jsonEncoder) clone() *jsonEncoder {
+ clone := getJSONEncoder()
+ clone.EncoderConfig = enc.EncoderConfig
+ clone.spaced = enc.spaced
+ clone.openNamespaces = enc.openNamespaces
+ clone.buf = bufferpool.Get()
+ return clone
+}
+
+func (enc *jsonEncoder) EncodeEntry(ent Entry, fields []Field) (*buffer.Buffer, error) {
+ final := enc.clone()
+ final.buf.AppendByte('{')
+
+ if final.LevelKey != "" {
+ final.addKey(final.LevelKey)
+ cur := final.buf.Len()
+ final.EncodeLevel(ent.Level, final)
+ if cur == final.buf.Len() {
+ // User-supplied EncodeLevel was a no-op. Fall back to strings to keep
+ // output JSON valid.
+ final.AppendString(ent.Level.String())
+ }
+ }
+ if final.TimeKey != "" {
+ final.AddTime(final.TimeKey, ent.Time)
+ }
+ if ent.LoggerName != "" && final.NameKey != "" {
+ final.addKey(final.NameKey)
+ cur := final.buf.Len()
+ nameEncoder := final.EncodeName
+
+ // if no name encoder provided, fall back to FullNameEncoder for backwards
+ // compatibility
+ if nameEncoder == nil {
+ nameEncoder = FullNameEncoder
+ }
+
+ nameEncoder(ent.LoggerName, final)
+ if cur == final.buf.Len() {
+ // User-supplied EncodeName was a no-op. Fall back to strings to
+ // keep output JSON valid.
+ final.AppendString(ent.LoggerName)
+ }
+ }
+ if ent.Caller.Defined {
+ if final.CallerKey != "" {
+ final.addKey(final.CallerKey)
+ cur := final.buf.Len()
+ final.EncodeCaller(ent.Caller, final)
+ if cur == final.buf.Len() {
+ // User-supplied EncodeCaller was a no-op. Fall back to strings to
+ // keep output JSON valid.
+ final.AppendString(ent.Caller.String())
+ }
+ }
+ if final.FunctionKey != "" {
+ final.addKey(final.FunctionKey)
+ final.AppendString(ent.Caller.Function)
+ }
+ }
+ if final.MessageKey != "" {
+ final.addKey(enc.MessageKey)
+ final.AppendString(ent.Message)
+ }
+ if enc.buf.Len() > 0 {
+ final.addElementSeparator()
+ final.buf.Write(enc.buf.Bytes())
+ }
+ addFields(final, fields)
+ final.closeOpenNamespaces()
+ if ent.Stack != "" && final.StacktraceKey != "" {
+ final.AddString(final.StacktraceKey, ent.Stack)
+ }
+ final.buf.AppendByte('}')
+ if final.LineEnding != "" {
+ final.buf.AppendString(final.LineEnding)
+ } else {
+ final.buf.AppendString(DefaultLineEnding)
+ }
+
+ ret := final.buf
+ putJSONEncoder(final)
+ return ret, nil
+}
+
+func (enc *jsonEncoder) truncate() {
+ enc.buf.Reset()
+}
+
+func (enc *jsonEncoder) closeOpenNamespaces() {
+ for i := 0; i < enc.openNamespaces; i++ {
+ enc.buf.AppendByte('}')
+ }
+}
+
+func (enc *jsonEncoder) addKey(key string) {
+ enc.addElementSeparator()
+ enc.buf.AppendByte('"')
+ enc.safeAddString(key)
+ enc.buf.AppendByte('"')
+ enc.buf.AppendByte(':')
+ if enc.spaced {
+ enc.buf.AppendByte(' ')
+ }
+}
+
+func (enc *jsonEncoder) addElementSeparator() {
+ last := enc.buf.Len() - 1
+ if last < 0 {
+ return
+ }
+ switch enc.buf.Bytes()[last] {
+ case '{', '[', ':', ',', ' ':
+ return
+ default:
+ enc.buf.AppendByte(',')
+ if enc.spaced {
+ enc.buf.AppendByte(' ')
+ }
+ }
+}
+
+func (enc *jsonEncoder) appendFloat(val float64, bitSize int) {
+ enc.addElementSeparator()
+ switch {
+ case math.IsNaN(val):
+ enc.buf.AppendString(`"NaN"`)
+ case math.IsInf(val, 1):
+ enc.buf.AppendString(`"+Inf"`)
+ case math.IsInf(val, -1):
+ enc.buf.AppendString(`"-Inf"`)
+ default:
+ enc.buf.AppendFloat(val, bitSize)
+ }
+}
+
+// safeAddString JSON-escapes a string and appends it to the internal buffer.
+// Unlike the standard library's encoder, it doesn't attempt to protect the
+// user from browser vulnerabilities or JSONP-related problems.
+func (enc *jsonEncoder) safeAddString(s string) {
+ for i := 0; i < len(s); {
+ if enc.tryAddRuneSelf(s[i]) {
+ i++
+ continue
+ }
+ r, size := utf8.DecodeRuneInString(s[i:])
+ if enc.tryAddRuneError(r, size) {
+ i++
+ continue
+ }
+ enc.buf.AppendString(s[i : i+size])
+ i += size
+ }
+}
+
+// safeAddByteString is no-alloc equivalent of safeAddString(string(s)) for s []byte.
+func (enc *jsonEncoder) safeAddByteString(s []byte) {
+ for i := 0; i < len(s); {
+ if enc.tryAddRuneSelf(s[i]) {
+ i++
+ continue
+ }
+ r, size := utf8.DecodeRune(s[i:])
+ if enc.tryAddRuneError(r, size) {
+ i++
+ continue
+ }
+ enc.buf.Write(s[i : i+size])
+ i += size
+ }
+}
+
+// tryAddRuneSelf appends b if it is valid UTF-8 character represented in a single byte.
+func (enc *jsonEncoder) tryAddRuneSelf(b byte) bool {
+ if b >= utf8.RuneSelf {
+ return false
+ }
+ if 0x20 <= b && b != '\\' && b != '"' {
+ enc.buf.AppendByte(b)
+ return true
+ }
+ switch b {
+ case '\\', '"':
+ enc.buf.AppendByte('\\')
+ enc.buf.AppendByte(b)
+ case '\n':
+ enc.buf.AppendByte('\\')
+ enc.buf.AppendByte('n')
+ case '\r':
+ enc.buf.AppendByte('\\')
+ enc.buf.AppendByte('r')
+ case '\t':
+ enc.buf.AppendByte('\\')
+ enc.buf.AppendByte('t')
+ default:
+ // Encode bytes < 0x20, except for the escape sequences above.
+ enc.buf.AppendString(`\u00`)
+ enc.buf.AppendByte(_hex[b>>4])
+ enc.buf.AppendByte(_hex[b&0xF])
+ }
+ return true
+}
+
+func (enc *jsonEncoder) tryAddRuneError(r rune, size int) bool {
+ if r == utf8.RuneError && size == 1 {
+ enc.buf.AppendString(`\ufffd`)
+ return true
+ }
+ return false
+}
diff --git a/vendor/go.uber.org/zap/zapcore/level.go b/vendor/go.uber.org/zap/zapcore/level.go
new file mode 100644
index 0000000..e575c9f
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/level.go
@@ -0,0 +1,175 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "bytes"
+ "errors"
+ "fmt"
+)
+
+var errUnmarshalNilLevel = errors.New("can't unmarshal a nil *Level")
+
+// A Level is a logging priority. Higher levels are more important.
+type Level int8
+
+const (
+ // DebugLevel logs are typically voluminous, and are usually disabled in
+ // production.
+ DebugLevel Level = iota - 1
+ // InfoLevel is the default logging priority.
+ InfoLevel
+ // WarnLevel logs are more important than Info, but don't need individual
+ // human review.
+ WarnLevel
+ // ErrorLevel logs are high-priority. If an application is running smoothly,
+ // it shouldn't generate any error-level logs.
+ ErrorLevel
+ // DPanicLevel logs are particularly important errors. In development the
+ // logger panics after writing the message.
+ DPanicLevel
+ // PanicLevel logs a message, then panics.
+ PanicLevel
+ // FatalLevel logs a message, then calls os.Exit(1).
+ FatalLevel
+
+ _minLevel = DebugLevel
+ _maxLevel = FatalLevel
+)
+
+// String returns a lower-case ASCII representation of the log level.
+func (l Level) String() string {
+ switch l {
+ case DebugLevel:
+ return "debug"
+ case InfoLevel:
+ return "info"
+ case WarnLevel:
+ return "warn"
+ case ErrorLevel:
+ return "error"
+ case DPanicLevel:
+ return "dpanic"
+ case PanicLevel:
+ return "panic"
+ case FatalLevel:
+ return "fatal"
+ default:
+ return fmt.Sprintf("Level(%d)", l)
+ }
+}
+
+// CapitalString returns an all-caps ASCII representation of the log level.
+func (l Level) CapitalString() string {
+ // Printing levels in all-caps is common enough that we should export this
+ // functionality.
+ switch l {
+ case DebugLevel:
+ return "DEBUG"
+ case InfoLevel:
+ return "INFO"
+ case WarnLevel:
+ return "WARN"
+ case ErrorLevel:
+ return "ERROR"
+ case DPanicLevel:
+ return "DPANIC"
+ case PanicLevel:
+ return "PANIC"
+ case FatalLevel:
+ return "FATAL"
+ default:
+ return fmt.Sprintf("LEVEL(%d)", l)
+ }
+}
+
+// MarshalText marshals the Level to text. Note that the text representation
+// drops the -Level suffix (see example).
+func (l Level) MarshalText() ([]byte, error) {
+ return []byte(l.String()), nil
+}
+
+// UnmarshalText unmarshals text to a level. Like MarshalText, UnmarshalText
+// expects the text representation of a Level to drop the -Level suffix (see
+// example).
+//
+// In particular, this makes it easy to configure logging levels using YAML,
+// TOML, or JSON files.
+func (l *Level) UnmarshalText(text []byte) error {
+ if l == nil {
+ return errUnmarshalNilLevel
+ }
+ if !l.unmarshalText(text) && !l.unmarshalText(bytes.ToLower(text)) {
+ return fmt.Errorf("unrecognized level: %q", text)
+ }
+ return nil
+}
+
+func (l *Level) unmarshalText(text []byte) bool {
+ switch string(text) {
+ case "debug", "DEBUG":
+ *l = DebugLevel
+ case "info", "INFO", "": // make the zero value useful
+ *l = InfoLevel
+ case "warn", "WARN":
+ *l = WarnLevel
+ case "error", "ERROR":
+ *l = ErrorLevel
+ case "dpanic", "DPANIC":
+ *l = DPanicLevel
+ case "panic", "PANIC":
+ *l = PanicLevel
+ case "fatal", "FATAL":
+ *l = FatalLevel
+ default:
+ return false
+ }
+ return true
+}
+
+// Set sets the level for the flag.Value interface.
+func (l *Level) Set(s string) error {
+ return l.UnmarshalText([]byte(s))
+}
+
+// Get gets the level for the flag.Getter interface.
+func (l *Level) Get() interface{} {
+ return *l
+}
+
+// Enabled returns true if the given level is at or above this level.
+func (l Level) Enabled(lvl Level) bool {
+ return lvl >= l
+}
+
+// LevelEnabler decides whether a given logging level is enabled when logging a
+// message.
+//
+// Enablers are intended to be used to implement deterministic filters;
+// concerns like sampling are better implemented as a Core.
+//
+// Each concrete Level value implements a static LevelEnabler which returns
+// true for itself and all higher logging levels. For example WarnLevel.Enabled()
+// will return true for WarnLevel, ErrorLevel, DPanicLevel, PanicLevel, and
+// FatalLevel, but return false for InfoLevel and DebugLevel.
+type LevelEnabler interface {
+ Enabled(Level) bool
+}
diff --git a/vendor/go.uber.org/zap/zapcore/level_strings.go b/vendor/go.uber.org/zap/zapcore/level_strings.go
new file mode 100644
index 0000000..7af8dad
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/level_strings.go
@@ -0,0 +1,46 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import "go.uber.org/zap/internal/color"
+
+var (
+ _levelToColor = map[Level]color.Color{
+ DebugLevel: color.Magenta,
+ InfoLevel: color.Blue,
+ WarnLevel: color.Yellow,
+ ErrorLevel: color.Red,
+ DPanicLevel: color.Red,
+ PanicLevel: color.Red,
+ FatalLevel: color.Red,
+ }
+ _unknownLevelColor = color.Red
+
+ _levelToLowercaseColorString = make(map[Level]string, len(_levelToColor))
+ _levelToCapitalColorString = make(map[Level]string, len(_levelToColor))
+)
+
+func init() {
+ for level, color := range _levelToColor {
+ _levelToLowercaseColorString[level] = color.Add(level.String())
+ _levelToCapitalColorString[level] = color.Add(level.CapitalString())
+ }
+}
diff --git a/vendor/go.uber.org/zap/zapcore/marshaler.go b/vendor/go.uber.org/zap/zapcore/marshaler.go
new file mode 100644
index 0000000..c3c55ba
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/marshaler.go
@@ -0,0 +1,61 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+// ObjectMarshaler allows user-defined types to efficiently add themselves to the
+// logging context, and to selectively omit information which shouldn't be
+// included in logs (e.g., passwords).
+//
+// Note: ObjectMarshaler is only used when zap.Object is used or when
+// passed directly to zap.Any. It is not used when reflection-based
+// encoding is used.
+type ObjectMarshaler interface {
+ MarshalLogObject(ObjectEncoder) error
+}
+
+// ObjectMarshalerFunc is a type adapter that turns a function into an
+// ObjectMarshaler.
+type ObjectMarshalerFunc func(ObjectEncoder) error
+
+// MarshalLogObject calls the underlying function.
+func (f ObjectMarshalerFunc) MarshalLogObject(enc ObjectEncoder) error {
+ return f(enc)
+}
+
+// ArrayMarshaler allows user-defined types to efficiently add themselves to the
+// logging context, and to selectively omit information which shouldn't be
+// included in logs (e.g., passwords).
+//
+// Note: ArrayMarshaler is only used when zap.Array is used or when
+// passed directly to zap.Any. It is not used when reflection-based
+// encoding is used.
+type ArrayMarshaler interface {
+ MarshalLogArray(ArrayEncoder) error
+}
+
+// ArrayMarshalerFunc is a type adapter that turns a function into an
+// ArrayMarshaler.
+type ArrayMarshalerFunc func(ArrayEncoder) error
+
+// MarshalLogArray calls the underlying function.
+func (f ArrayMarshalerFunc) MarshalLogArray(enc ArrayEncoder) error {
+ return f(enc)
+}
diff --git a/vendor/go.uber.org/zap/zapcore/memory_encoder.go b/vendor/go.uber.org/zap/zapcore/memory_encoder.go
new file mode 100644
index 0000000..dfead08
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/memory_encoder.go
@@ -0,0 +1,179 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import "time"
+
+// MapObjectEncoder is an ObjectEncoder backed by a simple
+// map[string]interface{}. It's not fast enough for production use, but it's
+// helpful in tests.
+type MapObjectEncoder struct {
+ // Fields contains the entire encoded log context.
+ Fields map[string]interface{}
+ // cur is a pointer to the namespace we're currently writing to.
+ cur map[string]interface{}
+}
+
+// NewMapObjectEncoder creates a new map-backed ObjectEncoder.
+func NewMapObjectEncoder() *MapObjectEncoder {
+ m := make(map[string]interface{})
+ return &MapObjectEncoder{
+ Fields: m,
+ cur: m,
+ }
+}
+
+// AddArray implements ObjectEncoder.
+func (m *MapObjectEncoder) AddArray(key string, v ArrayMarshaler) error {
+ arr := &sliceArrayEncoder{elems: make([]interface{}, 0)}
+ err := v.MarshalLogArray(arr)
+ m.cur[key] = arr.elems
+ return err
+}
+
+// AddObject implements ObjectEncoder.
+func (m *MapObjectEncoder) AddObject(k string, v ObjectMarshaler) error {
+ newMap := NewMapObjectEncoder()
+ m.cur[k] = newMap.Fields
+ return v.MarshalLogObject(newMap)
+}
+
+// AddBinary implements ObjectEncoder.
+func (m *MapObjectEncoder) AddBinary(k string, v []byte) { m.cur[k] = v }
+
+// AddByteString implements ObjectEncoder.
+func (m *MapObjectEncoder) AddByteString(k string, v []byte) { m.cur[k] = string(v) }
+
+// AddBool implements ObjectEncoder.
+func (m *MapObjectEncoder) AddBool(k string, v bool) { m.cur[k] = v }
+
+// AddDuration implements ObjectEncoder.
+func (m MapObjectEncoder) AddDuration(k string, v time.Duration) { m.cur[k] = v }
+
+// AddComplex128 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddComplex128(k string, v complex128) { m.cur[k] = v }
+
+// AddComplex64 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddComplex64(k string, v complex64) { m.cur[k] = v }
+
+// AddFloat64 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddFloat64(k string, v float64) { m.cur[k] = v }
+
+// AddFloat32 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddFloat32(k string, v float32) { m.cur[k] = v }
+
+// AddInt implements ObjectEncoder.
+func (m *MapObjectEncoder) AddInt(k string, v int) { m.cur[k] = v }
+
+// AddInt64 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddInt64(k string, v int64) { m.cur[k] = v }
+
+// AddInt32 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddInt32(k string, v int32) { m.cur[k] = v }
+
+// AddInt16 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddInt16(k string, v int16) { m.cur[k] = v }
+
+// AddInt8 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddInt8(k string, v int8) { m.cur[k] = v }
+
+// AddString implements ObjectEncoder.
+func (m *MapObjectEncoder) AddString(k string, v string) { m.cur[k] = v }
+
+// AddTime implements ObjectEncoder.
+func (m MapObjectEncoder) AddTime(k string, v time.Time) { m.cur[k] = v }
+
+// AddUint implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUint(k string, v uint) { m.cur[k] = v }
+
+// AddUint64 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUint64(k string, v uint64) { m.cur[k] = v }
+
+// AddUint32 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUint32(k string, v uint32) { m.cur[k] = v }
+
+// AddUint16 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUint16(k string, v uint16) { m.cur[k] = v }
+
+// AddUint8 implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUint8(k string, v uint8) { m.cur[k] = v }
+
+// AddUintptr implements ObjectEncoder.
+func (m *MapObjectEncoder) AddUintptr(k string, v uintptr) { m.cur[k] = v }
+
+// AddReflected implements ObjectEncoder.
+func (m *MapObjectEncoder) AddReflected(k string, v interface{}) error {
+ m.cur[k] = v
+ return nil
+}
+
+// OpenNamespace implements ObjectEncoder.
+func (m *MapObjectEncoder) OpenNamespace(k string) {
+ ns := make(map[string]interface{})
+ m.cur[k] = ns
+ m.cur = ns
+}
+
+// sliceArrayEncoder is an ArrayEncoder backed by a simple []interface{}. Like
+// the MapObjectEncoder, it's not designed for production use.
+type sliceArrayEncoder struct {
+ elems []interface{}
+}
+
+func (s *sliceArrayEncoder) AppendArray(v ArrayMarshaler) error {
+ enc := &sliceArrayEncoder{}
+ err := v.MarshalLogArray(enc)
+ s.elems = append(s.elems, enc.elems)
+ return err
+}
+
+func (s *sliceArrayEncoder) AppendObject(v ObjectMarshaler) error {
+ m := NewMapObjectEncoder()
+ err := v.MarshalLogObject(m)
+ s.elems = append(s.elems, m.Fields)
+ return err
+}
+
+func (s *sliceArrayEncoder) AppendReflected(v interface{}) error {
+ s.elems = append(s.elems, v)
+ return nil
+}
+
+func (s *sliceArrayEncoder) AppendBool(v bool) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendByteString(v []byte) { s.elems = append(s.elems, string(v)) }
+func (s *sliceArrayEncoder) AppendComplex128(v complex128) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendComplex64(v complex64) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendDuration(v time.Duration) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendFloat64(v float64) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendFloat32(v float32) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendInt(v int) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendInt64(v int64) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendInt32(v int32) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendInt16(v int16) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendInt8(v int8) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendString(v string) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendTime(v time.Time) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUint(v uint) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUint64(v uint64) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUint32(v uint32) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUint16(v uint16) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUint8(v uint8) { s.elems = append(s.elems, v) }
+func (s *sliceArrayEncoder) AppendUintptr(v uintptr) { s.elems = append(s.elems, v) }
diff --git a/vendor/go.uber.org/zap/zapcore/sampler.go b/vendor/go.uber.org/zap/zapcore/sampler.go
new file mode 100644
index 0000000..25f10ca
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/sampler.go
@@ -0,0 +1,208 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "time"
+
+ "go.uber.org/atomic"
+)
+
+const (
+ _numLevels = _maxLevel - _minLevel + 1
+ _countersPerLevel = 4096
+)
+
+type counter struct {
+ resetAt atomic.Int64
+ counter atomic.Uint64
+}
+
+type counters [_numLevels][_countersPerLevel]counter
+
+func newCounters() *counters {
+ return &counters{}
+}
+
+func (cs *counters) get(lvl Level, key string) *counter {
+ i := lvl - _minLevel
+ j := fnv32a(key) % _countersPerLevel
+ return &cs[i][j]
+}
+
+// fnv32a, adapted from "hash/fnv", but without a []byte(string) alloc
+func fnv32a(s string) uint32 {
+ const (
+ offset32 = 2166136261
+ prime32 = 16777619
+ )
+ hash := uint32(offset32)
+ for i := 0; i < len(s); i++ {
+ hash ^= uint32(s[i])
+ hash *= prime32
+ }
+ return hash
+}
+
+func (c *counter) IncCheckReset(t time.Time, tick time.Duration) uint64 {
+ tn := t.UnixNano()
+ resetAfter := c.resetAt.Load()
+ if resetAfter > tn {
+ return c.counter.Inc()
+ }
+
+ c.counter.Store(1)
+
+ newResetAfter := tn + tick.Nanoseconds()
+ if !c.resetAt.CAS(resetAfter, newResetAfter) {
+ // We raced with another goroutine trying to reset, and it also reset
+ // the counter to 1, so we need to reincrement the counter.
+ return c.counter.Inc()
+ }
+
+ return 1
+}
+
+// SamplingDecision is a decision represented as a bit field made by sampler.
+// More decisions may be added in the future.
+type SamplingDecision uint32
+
+const (
+ // LogDropped indicates that the Sampler dropped a log entry.
+ LogDropped SamplingDecision = 1 << iota
+ // LogSampled indicates that the Sampler sampled a log entry.
+ LogSampled
+)
+
+// optionFunc wraps a func so it satisfies the SamplerOption interface.
+type optionFunc func(*sampler)
+
+func (f optionFunc) apply(s *sampler) {
+ f(s)
+}
+
+// SamplerOption configures a Sampler.
+type SamplerOption interface {
+ apply(*sampler)
+}
+
+// nopSamplingHook is the default hook used by sampler.
+func nopSamplingHook(Entry, SamplingDecision) {}
+
+// SamplerHook registers a function which will be called when Sampler makes a
+// decision.
+//
+// This hook may be used to get visibility into the performance of the sampler.
+// For example, use it to track metrics of dropped versus sampled logs.
+//
+// var dropped atomic.Int64
+// zapcore.SamplerHook(func(ent zapcore.Entry, dec zapcore.SamplingDecision) {
+// if dec&zapcore.LogDropped > 0 {
+// dropped.Inc()
+// }
+// })
+func SamplerHook(hook func(entry Entry, dec SamplingDecision)) SamplerOption {
+ return optionFunc(func(s *sampler) {
+ s.hook = hook
+ })
+}
+
+// NewSamplerWithOptions creates a Core that samples incoming entries, which
+// caps the CPU and I/O load of logging while attempting to preserve a
+// representative subset of your logs.
+//
+// Zap samples by logging the first N entries with a given level and message
+// each tick. If more Entries with the same level and message are seen during
+// the same interval, every Mth message is logged and the rest are dropped.
+//
+// Sampler can be configured to report sampling decisions with the SamplerHook
+// option.
+//
+// Keep in mind that zap's sampling implementation is optimized for speed over
+// absolute precision; under load, each tick may be slightly over- or
+// under-sampled.
+func NewSamplerWithOptions(core Core, tick time.Duration, first, thereafter int, opts ...SamplerOption) Core {
+ s := &sampler{
+ Core: core,
+ tick: tick,
+ counts: newCounters(),
+ first: uint64(first),
+ thereafter: uint64(thereafter),
+ hook: nopSamplingHook,
+ }
+ for _, opt := range opts {
+ opt.apply(s)
+ }
+
+ return s
+}
+
+type sampler struct {
+ Core
+
+ counts *counters
+ tick time.Duration
+ first, thereafter uint64
+ hook func(Entry, SamplingDecision)
+}
+
+// NewSampler creates a Core that samples incoming entries, which
+// caps the CPU and I/O load of logging while attempting to preserve a
+// representative subset of your logs.
+//
+// Zap samples by logging the first N entries with a given level and message
+// each tick. If more Entries with the same level and message are seen during
+// the same interval, every Mth message is logged and the rest are dropped.
+//
+// Keep in mind that zap's sampling implementation is optimized for speed over
+// absolute precision; under load, each tick may be slightly over- or
+// under-sampled.
+//
+// Deprecated: use NewSamplerWithOptions.
+func NewSampler(core Core, tick time.Duration, first, thereafter int) Core {
+ return NewSamplerWithOptions(core, tick, first, thereafter)
+}
+
+func (s *sampler) With(fields []Field) Core {
+ return &sampler{
+ Core: s.Core.With(fields),
+ tick: s.tick,
+ counts: s.counts,
+ first: s.first,
+ thereafter: s.thereafter,
+ hook: s.hook,
+ }
+}
+
+func (s *sampler) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
+ if !s.Enabled(ent.Level) {
+ return ce
+ }
+
+ counter := s.counts.get(ent.Level, ent.Message)
+ n := counter.IncCheckReset(ent.Time, s.tick)
+ if n > s.first && (n-s.first)%s.thereafter != 0 {
+ s.hook(ent, LogDropped)
+ return ce
+ }
+ s.hook(ent, LogSampled)
+ return s.Core.Check(ent, ce)
+}
diff --git a/vendor/go.uber.org/zap/zapcore/tee.go b/vendor/go.uber.org/zap/zapcore/tee.go
new file mode 100644
index 0000000..07a32ee
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/tee.go
@@ -0,0 +1,81 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import "go.uber.org/multierr"
+
+type multiCore []Core
+
+// NewTee creates a Core that duplicates log entries into two or more
+// underlying Cores.
+//
+// Calling it with a single Core returns the input unchanged, and calling
+// it with no input returns a no-op Core.
+func NewTee(cores ...Core) Core {
+ switch len(cores) {
+ case 0:
+ return NewNopCore()
+ case 1:
+ return cores[0]
+ default:
+ return multiCore(cores)
+ }
+}
+
+func (mc multiCore) With(fields []Field) Core {
+ clone := make(multiCore, len(mc))
+ for i := range mc {
+ clone[i] = mc[i].With(fields)
+ }
+ return clone
+}
+
+func (mc multiCore) Enabled(lvl Level) bool {
+ for i := range mc {
+ if mc[i].Enabled(lvl) {
+ return true
+ }
+ }
+ return false
+}
+
+func (mc multiCore) Check(ent Entry, ce *CheckedEntry) *CheckedEntry {
+ for i := range mc {
+ ce = mc[i].Check(ent, ce)
+ }
+ return ce
+}
+
+func (mc multiCore) Write(ent Entry, fields []Field) error {
+ var err error
+ for i := range mc {
+ err = multierr.Append(err, mc[i].Write(ent, fields))
+ }
+ return err
+}
+
+func (mc multiCore) Sync() error {
+ var err error
+ for i := range mc {
+ err = multierr.Append(err, mc[i].Sync())
+ }
+ return err
+}
diff --git a/vendor/go.uber.org/zap/zapcore/write_syncer.go b/vendor/go.uber.org/zap/zapcore/write_syncer.go
new file mode 100644
index 0000000..d4a1af3
--- /dev/null
+++ b/vendor/go.uber.org/zap/zapcore/write_syncer.go
@@ -0,0 +1,122 @@
+// Copyright (c) 2016 Uber Technologies, Inc.
+//
+// Permission is hereby granted, free of charge, to any person obtaining a copy
+// of this software and associated documentation files (the "Software"), to deal
+// in the Software without restriction, including without limitation the rights
+// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
+// copies of the Software, and to permit persons to whom the Software is
+// furnished to do so, subject to the following conditions:
+//
+// The above copyright notice and this permission notice shall be included in
+// all copies or substantial portions of the Software.
+//
+// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
+// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
+// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
+// THE SOFTWARE.
+
+package zapcore
+
+import (
+ "io"
+ "sync"
+
+ "go.uber.org/multierr"
+)
+
+// A WriteSyncer is an io.Writer that can also flush any buffered data. Note
+// that *os.File (and thus, os.Stderr and os.Stdout) implement WriteSyncer.
+type WriteSyncer interface {
+ io.Writer
+ Sync() error
+}
+
+// AddSync converts an io.Writer to a WriteSyncer. It attempts to be
+// intelligent: if the concrete type of the io.Writer implements WriteSyncer,
+// we'll use the existing Sync method. If it doesn't, we'll add a no-op Sync.
+func AddSync(w io.Writer) WriteSyncer {
+ switch w := w.(type) {
+ case WriteSyncer:
+ return w
+ default:
+ return writerWrapper{w}
+ }
+}
+
+type lockedWriteSyncer struct {
+ sync.Mutex
+ ws WriteSyncer
+}
+
+// Lock wraps a WriteSyncer in a mutex to make it safe for concurrent use. In
+// particular, *os.Files must be locked before use.
+func Lock(ws WriteSyncer) WriteSyncer {
+ if _, ok := ws.(*lockedWriteSyncer); ok {
+ // no need to layer on another lock
+ return ws
+ }
+ return &lockedWriteSyncer{ws: ws}
+}
+
+func (s *lockedWriteSyncer) Write(bs []byte) (int, error) {
+ s.Lock()
+ n, err := s.ws.Write(bs)
+ s.Unlock()
+ return n, err
+}
+
+func (s *lockedWriteSyncer) Sync() error {
+ s.Lock()
+ err := s.ws.Sync()
+ s.Unlock()
+ return err
+}
+
+type writerWrapper struct {
+ io.Writer
+}
+
+func (w writerWrapper) Sync() error {
+ return nil
+}
+
+type multiWriteSyncer []WriteSyncer
+
+// NewMultiWriteSyncer creates a WriteSyncer that duplicates its writes
+// and sync calls, much like io.MultiWriter.
+func NewMultiWriteSyncer(ws ...WriteSyncer) WriteSyncer {
+ if len(ws) == 1 {
+ return ws[0]
+ }
+ return multiWriteSyncer(ws)
+}
+
+// See https://golang.org/src/io/multi.go
+// When not all underlying syncers write the same number of bytes,
+// the smallest number is returned even though Write() is called on
+// all of them.
+func (ws multiWriteSyncer) Write(p []byte) (int, error) {
+ var writeErr error
+ nWritten := 0
+ for _, w := range ws {
+ n, err := w.Write(p)
+ writeErr = multierr.Append(writeErr, err)
+ if nWritten == 0 && n != 0 {
+ nWritten = n
+ } else if n < nWritten {
+ nWritten = n
+ }
+ }
+ return nWritten, writeErr
+}
+
+func (ws multiWriteSyncer) Sync() error {
+ var err error
+ for _, w := range ws {
+ err = multierr.Append(err, w.Sync())
+ }
+ return err
+}