cord-776 create build / runtime containers for autmation uservices
Change-Id: I246973192adef56a250ffe93a5f65fff488840c1
diff --git a/switchq/vendor/github.com/juju/ansiterm/LICENSE b/switchq/vendor/github.com/juju/ansiterm/LICENSE
new file mode 100644
index 0000000..ade9307
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/LICENSE
@@ -0,0 +1,191 @@
+All files in this repository are licensed as follows. If you contribute
+to this repository, it is assumed that you license your contribution
+under the same license unless you state otherwise.
+
+All files Copyright (C) 2015 Canonical Ltd. unless otherwise specified in the file.
+
+This software is licensed under the LGPLv3, included below.
+
+As a special exception to the GNU Lesser General Public License version 3
+("LGPL3"), the copyright holders of this Library give you permission to
+convey to a third party a Combined Work that links statically or dynamically
+to this Library without providing any Minimal Corresponding Source or
+Minimal Application Code as set out in 4d or providing the installation
+information set out in section 4e, provided that you comply with the other
+provisions of LGPL3 and provided that you meet, for the Application the
+terms and conditions of the license(s) which apply to the Application.
+
+Except as stated in this special exception, the provisions of LGPL3 will
+continue to comply in full to this Library. If you modify this Library, you
+may apply this exception to your version of this Library, but you are not
+obliged to do so. If you do not wish to do so, delete this exception
+statement from your version. This exception does not (and cannot) modify any
+license terms which apply to the Application, with which you must still
+comply.
+
+
+ GNU LESSER GENERAL PUBLIC LICENSE
+ Version 3, 29 June 2007
+
+ Copyright (C) 2007 Free Software Foundation, Inc. <http://fsf.org/>
+ Everyone is permitted to copy and distribute verbatim copies
+ of this license document, but changing it is not allowed.
+
+
+ This version of the GNU Lesser General Public License incorporates
+the terms and conditions of version 3 of the GNU General Public
+License, supplemented by the additional permissions listed below.
+
+ 0. Additional Definitions.
+
+ As used herein, "this License" refers to version 3 of the GNU Lesser
+General Public License, and the "GNU GPL" refers to version 3 of the GNU
+General Public License.
+
+ "The Library" refers to a covered work governed by this License,
+other than an Application or a Combined Work as defined below.
+
+ An "Application" is any work that makes use of an interface provided
+by the Library, but which is not otherwise based on the Library.
+Defining a subclass of a class defined by the Library is deemed a mode
+of using an interface provided by the Library.
+
+ A "Combined Work" is a work produced by combining or linking an
+Application with the Library. The particular version of the Library
+with which the Combined Work was made is also called the "Linked
+Version".
+
+ The "Minimal Corresponding Source" for a Combined Work means the
+Corresponding Source for the Combined Work, excluding any source code
+for portions of the Combined Work that, considered in isolation, are
+based on the Application, and not on the Linked Version.
+
+ The "Corresponding Application Code" for a Combined Work means the
+object code and/or source code for the Application, including any data
+and utility programs needed for reproducing the Combined Work from the
+Application, but excluding the System Libraries of the Combined Work.
+
+ 1. Exception to Section 3 of the GNU GPL.
+
+ You may convey a covered work under sections 3 and 4 of this License
+without being bound by section 3 of the GNU GPL.
+
+ 2. Conveying Modified Versions.
+
+ If you modify a copy of the Library, and, in your modifications, a
+facility refers to a function or data to be supplied by an Application
+that uses the facility (other than as an argument passed when the
+facility is invoked), then you may convey a copy of the modified
+version:
+
+ a) under this License, provided that you make a good faith effort to
+ ensure that, in the event an Application does not supply the
+ function or data, the facility still operates, and performs
+ whatever part of its purpose remains meaningful, or
+
+ b) under the GNU GPL, with none of the additional permissions of
+ this License applicable to that copy.
+
+ 3. Object Code Incorporating Material from Library Header Files.
+
+ The object code form of an Application may incorporate material from
+a header file that is part of the Library. You may convey such object
+code under terms of your choice, provided that, if the incorporated
+material is not limited to numerical parameters, data structure
+layouts and accessors, or small macros, inline functions and templates
+(ten or fewer lines in length), you do both of the following:
+
+ a) Give prominent notice with each copy of the object code that the
+ Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the object code with a copy of the GNU GPL and this license
+ document.
+
+ 4. Combined Works.
+
+ You may convey a Combined Work under terms of your choice that,
+taken together, effectively do not restrict modification of the
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+engineering for debugging such modifications, if you also do each of
+the following:
+
+ a) Give prominent notice with each copy of the Combined Work that
+ the Library is used in it and that the Library and its use are
+ covered by this License.
+
+ b) Accompany the Combined Work with a copy of the GNU GPL and this license
+ document.
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+ c) For a Combined Work that displays copyright notices during
+ execution, include the copyright notice for the Library among
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+ suitable for, and under terms that permit, the user to
+ recombine or relink the Application with a modified version of
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+ manner specified by section 6 of the GNU GPL for conveying
+ Corresponding Source.
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+ 1) Use a suitable shared library mechanism for linking with the
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+ a copy of the Library already present on the user's computer
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+ of the Library that is interface-compatible with the Linked
+ Version.
+
+ e) Provide Installation Information, but only if you would otherwise
+ be required to provide such information under section 6 of the
+ GNU GPL, and only to the extent that such information is
+ necessary to install and execute a modified version of the
+ Combined Work produced by recombining or relinking the
+ Application with a modified version of the Linked Version. (If
+ you use option 4d0, the Installation Information must accompany
+ the Minimal Corresponding Source and Corresponding Application
+ Code. If you use option 4d1, you must provide the Installation
+ Information in the manner specified by section 6 of the GNU GPL
+ for conveying Corresponding Source.)
+
+ 5. Combined Libraries.
+
+ You may place library facilities that are a work based on the
+Library side by side in a single library together with other library
+facilities that are not Applications and are not covered by this
+License, and convey such a combined library under terms of your
+choice, if you do both of the following:
+
+ a) Accompany the combined library with a copy of the same work based
+ on the Library, uncombined with any other library facilities,
+ conveyed under the terms of this License.
+
+ b) Give prominent notice with the combined library that part of it
+ is a work based on the Library, and explaining where to find the
+ accompanying uncombined form of the same work.
+
+ 6. Revised Versions of the GNU Lesser General Public License.
+
+ The Free Software Foundation may publish revised and/or new versions
+of the GNU Lesser General Public License from time to time. Such new
+versions will be similar in spirit to the present version, but may
+differ in detail to address new problems or concerns.
+
+ Each version is given a distinguishing version number. If the
+Library as you received it specifies that a certain numbered version
+of the GNU Lesser General Public License "or any later version"
+applies to it, you have the option of following the terms and
+conditions either of that published version or of any later version
+published by the Free Software Foundation. If the Library as you
+received it does not specify a version number of the GNU Lesser
+General Public License, you may choose any version of the GNU Lesser
+General Public License ever published by the Free Software Foundation.
+
+ If the Library as you received it specifies that a proxy can decide
+whether future versions of the GNU Lesser General Public License shall
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+permanent authorization for you to choose that version for the
+Library.
diff --git a/switchq/vendor/github.com/juju/ansiterm/Makefile b/switchq/vendor/github.com/juju/ansiterm/Makefile
new file mode 100644
index 0000000..212fdcb
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/Makefile
@@ -0,0 +1,14 @@
+# Copyright 2016 Canonical Ltd.
+# Licensed under the LGPLv3, see LICENCE file for details.
+
+default: check
+
+check:
+ go test
+
+docs:
+ godoc2md github.com/juju/ansiterm > README.md
+ sed -i 's|\[godoc-link-here\]|[](https://godoc.org/github.com/juju/ansiterm)|' README.md
+
+
+.PHONY: default check docs
diff --git a/switchq/vendor/github.com/juju/ansiterm/README.md b/switchq/vendor/github.com/juju/ansiterm/README.md
new file mode 100644
index 0000000..5674387
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/README.md
@@ -0,0 +1,323 @@
+
+# ansiterm
+ import "github.com/juju/ansiterm"
+
+Package ansiterm provides a Writer that writes out the ANSI escape
+codes for color and styles.
+
+
+
+
+
+
+
+## type Color
+``` go
+type Color int
+```
+Color represents one of the standard 16 ANSI colors.
+
+
+
+``` go
+const (
+ Default Color
+ Black
+ Red
+ Green
+ Yellow
+ Blue
+ Magenta
+ Cyan
+ Gray
+ DarkGray
+ BrightRed
+ BrightGreen
+ BrightYellow
+ BrightBlue
+ BrightMagenta
+ BrightCyan
+ White
+)
+```
+
+
+
+
+
+
+
+
+### func (Color) String
+``` go
+func (c Color) String() string
+```
+String returns the name of the color.
+
+
+
+## type Context
+``` go
+type Context struct {
+ Foreground Color
+ Background Color
+ Styles []Style
+}
+```
+Context provides a way to specify both foreground and background colors
+along with other styles and write text to a Writer with those colors and
+styles.
+
+
+
+
+
+
+
+
+
+### func Background
+``` go
+func Background(color Color) *Context
+```
+Background is a convenience function that creates a Context with the
+specified color as the background color.
+
+
+### func Foreground
+``` go
+func Foreground(color Color) *Context
+```
+Foreground is a convenience function that creates a Context with the
+specified color as the foreground color.
+
+
+### func Styles
+``` go
+func Styles(styles ...Style) *Context
+```
+Styles is a convenience function that creates a Context with the
+specified styles set.
+
+
+
+
+### func (\*Context) Fprint
+``` go
+func (c *Context) Fprint(w sgrWriter, args ...interface{})
+```
+Fprint will set the sgr values of the writer to the specified foreground,
+background and styles, then formats using the default formats for its
+operands and writes to w. Spaces are added between operands when neither is
+a string. It returns the number of bytes written and any write error
+encountered.
+
+
+
+### func (\*Context) Fprintf
+``` go
+func (c *Context) Fprintf(w sgrWriter, format string, args ...interface{})
+```
+Fprintf will set the sgr values of the writer to the specified
+foreground, background and styles, then write the formatted string,
+then reset the writer.
+
+
+
+### func (\*Context) SetBackground
+``` go
+func (c *Context) SetBackground(color Color) *Context
+```
+SetBackground sets the background to the specified color.
+
+
+
+### func (\*Context) SetForeground
+``` go
+func (c *Context) SetForeground(color Color) *Context
+```
+SetForeground sets the foreground to the specified color.
+
+
+
+### func (\*Context) SetStyle
+``` go
+func (c *Context) SetStyle(styles ...Style) *Context
+```
+SetStyle replaces the styles with the new values.
+
+
+
+## type Style
+``` go
+type Style int
+```
+
+
+``` go
+const (
+ Bold Style
+ Faint
+ Italic
+ Underline
+ Blink
+ Reverse
+ Strikethrough
+ Conceal
+)
+```
+
+
+
+
+
+
+
+
+### func (Style) String
+``` go
+func (s Style) String() string
+```
+
+
+## type TabWriter
+``` go
+type TabWriter struct {
+ Writer
+ // contains filtered or unexported fields
+}
+```
+TabWriter is a filter that inserts padding around tab-delimited
+columns in its input to align them in the output.
+
+It also setting of colors and styles over and above the standard
+tabwriter package.
+
+
+
+
+
+
+
+
+
+### func NewTabWriter
+``` go
+func NewTabWriter(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter
+```
+NewTabWriter returns a writer that is able to set colors and styels.
+The ansi escape codes are stripped for width calculations.
+
+
+
+
+### func (\*TabWriter) Flush
+``` go
+func (t *TabWriter) Flush() error
+```
+Flush should be called after the last call to Write to ensure
+that any data buffered in the Writer is written to output. Any
+incomplete escape sequence at the end is considered
+complete for formatting purposes.
+
+
+
+### func (\*TabWriter) Init
+``` go
+func (t *TabWriter) Init(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter
+```
+A Writer must be initialized with a call to Init. The first parameter (output)
+specifies the filter output. The remaining parameters control the formatting:
+
+
+ minwidth minimal cell width including any padding
+ tabwidth width of tab characters (equivalent number of spaces)
+ padding padding added to a cell before computing its width
+ padchar ASCII char used for padding
+ if padchar == '\t', the Writer will assume that the
+ width of a '\t' in the formatted output is tabwidth,
+ and cells are left-aligned independent of align_left
+ (for correct-looking results, tabwidth must correspond
+ to the tab width in the viewer displaying the result)
+ flags formatting control
+
+
+
+## type Writer
+``` go
+type Writer struct {
+ io.Writer
+ // contains filtered or unexported fields
+}
+```
+Writer allows colors and styles to be specified. If the io.Writer
+is not a terminal capable of color, all attempts to set colors or
+styles are no-ops.
+
+
+
+
+
+
+
+
+
+### func NewWriter
+``` go
+func NewWriter(w io.Writer) *Writer
+```
+NewWriter returns a Writer that allows the caller to specify colors and
+styles. If the io.Writer is not a terminal capable of color, all attempts
+to set colors or styles are no-ops.
+
+
+
+
+### func (\*Writer) ClearStyle
+``` go
+func (w *Writer) ClearStyle(s Style)
+```
+ClearStyle clears the text style.
+
+
+
+### func (\*Writer) Reset
+``` go
+func (w *Writer) Reset()
+```
+Reset returns the default foreground and background colors with no styles.
+
+
+
+### func (\*Writer) SetBackground
+``` go
+func (w *Writer) SetBackground(c Color)
+```
+SetBackground sets the background color.
+
+
+
+### func (\*Writer) SetForeground
+``` go
+func (w *Writer) SetForeground(c Color)
+```
+SetForeground sets the foreground color.
+
+
+
+### func (\*Writer) SetStyle
+``` go
+func (w *Writer) SetStyle(s Style)
+```
+SetStyle sets the text style.
+
+
+
+
+
+
+
+
+
+- - -
+Generated by [godoc2md](http://godoc.org/github.com/davecheney/godoc2md)
\ No newline at end of file
diff --git a/switchq/vendor/github.com/juju/ansiterm/attribute.go b/switchq/vendor/github.com/juju/ansiterm/attribute.go
new file mode 100644
index 0000000..f2daa48
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/attribute.go
@@ -0,0 +1,50 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+import (
+ "fmt"
+ "sort"
+ "strings"
+)
+
+type attribute int
+
+const (
+ unknownAttribute attribute = -1
+ reset attribute = 0
+)
+
+// sgr returns the escape sequence for the Select Graphic Rendition
+// for the attribute.
+func (a attribute) sgr() string {
+ if a < 0 {
+ return ""
+ }
+ return fmt.Sprintf("\x1b[%dm", a)
+}
+
+type attributes []attribute
+
+func (a attributes) Len() int { return len(a) }
+func (a attributes) Less(i, j int) bool { return a[i] < a[j] }
+func (a attributes) Swap(i, j int) { a[i], a[j] = a[j], a[i] }
+
+// sgr returns the combined escape sequence for the Select Graphic Rendition
+// for the sequence of attributes.
+func (a attributes) sgr() string {
+ switch len(a) {
+ case 0:
+ return ""
+ case 1:
+ return a[0].sgr()
+ default:
+ sort.Sort(a)
+ var values []string
+ for _, attr := range a {
+ values = append(values, fmt.Sprint(attr))
+ }
+ return fmt.Sprintf("\x1b[%sm", strings.Join(values, ";"))
+ }
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/color.go b/switchq/vendor/github.com/juju/ansiterm/color.go
new file mode 100644
index 0000000..0a97de3
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/color.go
@@ -0,0 +1,119 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+const (
+ _ Color = iota
+ Default
+ Black
+ Red
+ Green
+ Yellow
+ Blue
+ Magenta
+ Cyan
+ Gray
+ DarkGray
+ BrightRed
+ BrightGreen
+ BrightYellow
+ BrightBlue
+ BrightMagenta
+ BrightCyan
+ White
+)
+
+// Color represents one of the standard 16 ANSI colors.
+type Color int
+
+// String returns the name of the color.
+func (c Color) String() string {
+ switch c {
+ case Default:
+ return "default"
+ case Black:
+ return "black"
+ case Red:
+ return "red"
+ case Green:
+ return "green"
+ case Yellow:
+ return "yellow"
+ case Blue:
+ return "blue"
+ case Magenta:
+ return "magenta"
+ case Cyan:
+ return "cyan"
+ case Gray:
+ return "gray"
+ case DarkGray:
+ return "darkgray"
+ case BrightRed:
+ return "brightred"
+ case BrightGreen:
+ return "brightgreen"
+ case BrightYellow:
+ return "brightyellow"
+ case BrightBlue:
+ return "brightblue"
+ case BrightMagenta:
+ return "brightmagenta"
+ case BrightCyan:
+ return "brightcyan"
+ case White:
+ return "white"
+ default:
+ return ""
+ }
+}
+
+func (c Color) foreground() attribute {
+ switch c {
+ case Default:
+ return 39
+ case Black:
+ return 30
+ case Red:
+ return 31
+ case Green:
+ return 32
+ case Yellow:
+ return 33
+ case Blue:
+ return 34
+ case Magenta:
+ return 35
+ case Cyan:
+ return 36
+ case Gray:
+ return 37
+ case DarkGray:
+ return 90
+ case BrightRed:
+ return 91
+ case BrightGreen:
+ return 92
+ case BrightYellow:
+ return 93
+ case BrightBlue:
+ return 94
+ case BrightMagenta:
+ return 95
+ case BrightCyan:
+ return 96
+ case White:
+ return 97
+ default:
+ return unknownAttribute
+ }
+}
+
+func (c Color) background() attribute {
+ value := c.foreground()
+ if value != unknownAttribute {
+ return value + 10
+ }
+ return value
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/context.go b/switchq/vendor/github.com/juju/ansiterm/context.go
new file mode 100644
index 0000000..e61a867
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/context.go
@@ -0,0 +1,95 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+import (
+ "fmt"
+ "io"
+)
+
+// Context provides a way to specify both foreground and background colors
+// along with other styles and write text to a Writer with those colors and
+// styles.
+type Context struct {
+ Foreground Color
+ Background Color
+ Styles []Style
+}
+
+// Foreground is a convenience function that creates a Context with the
+// specified color as the foreground color.
+func Foreground(color Color) *Context {
+ return &Context{Foreground: color}
+}
+
+// Background is a convenience function that creates a Context with the
+// specified color as the background color.
+func Background(color Color) *Context {
+ return &Context{Background: color}
+}
+
+// Styles is a convenience function that creates a Context with the
+// specified styles set.
+func Styles(styles ...Style) *Context {
+ return &Context{Styles: styles}
+}
+
+// SetForeground sets the foreground to the specified color.
+func (c *Context) SetForeground(color Color) *Context {
+ c.Foreground = color
+ return c
+}
+
+// SetBackground sets the background to the specified color.
+func (c *Context) SetBackground(color Color) *Context {
+ c.Background = color
+ return c
+}
+
+// SetStyle replaces the styles with the new values.
+func (c *Context) SetStyle(styles ...Style) *Context {
+ c.Styles = styles
+ return c
+}
+
+type sgrWriter interface {
+ io.Writer
+ writeSGR(value sgr)
+}
+
+// Fprintf will set the sgr values of the writer to the specified
+// foreground, background and styles, then write the formatted string,
+// then reset the writer.
+func (c *Context) Fprintf(w sgrWriter, format string, args ...interface{}) {
+ w.writeSGR(c)
+ fmt.Fprintf(w, format, args...)
+ w.writeSGR(reset)
+}
+
+// Fprint will set the sgr values of the writer to the specified foreground,
+// background and styles, then formats using the default formats for its
+// operands and writes to w. Spaces are added between operands when neither is
+// a string. It returns the number of bytes written and any write error
+// encountered.
+func (c *Context) Fprint(w sgrWriter, args ...interface{}) {
+ w.writeSGR(c)
+ fmt.Fprint(w, args...)
+ w.writeSGR(reset)
+}
+
+func (c *Context) sgr() string {
+ var values attributes
+ if foreground := c.Foreground.foreground(); foreground != unknownAttribute {
+ values = append(values, foreground)
+ }
+ if background := c.Background.background(); background != unknownAttribute {
+ values = append(values, background)
+ }
+ for _, style := range c.Styles {
+ if value := style.enable(); value != unknownAttribute {
+ values = append(values, value)
+ }
+ }
+ return values.sgr()
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/doc.go b/switchq/vendor/github.com/juju/ansiterm/doc.go
new file mode 100644
index 0000000..7827007
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/doc.go
@@ -0,0 +1,6 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+// Package ansiterm provides a Writer that writes out the ANSI escape
+// codes for color and styles.
+package ansiterm
diff --git a/switchq/vendor/github.com/juju/ansiterm/style.go b/switchq/vendor/github.com/juju/ansiterm/style.go
new file mode 100644
index 0000000..0be42da
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/style.go
@@ -0,0 +1,72 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+const (
+ _ Style = iota
+ Bold
+ Faint
+ Italic
+ Underline
+ Blink
+ Reverse
+ Strikethrough
+ Conceal
+)
+
+type Style int
+
+func (s Style) String() string {
+ switch s {
+ case Bold:
+ return "bold"
+ case Faint:
+ return "faint"
+ case Italic:
+ return "italic"
+ case Underline:
+ return "underline"
+ case Blink:
+ return "blink"
+ case Reverse:
+ return "reverse"
+ case Strikethrough:
+ return "strikethrough"
+ case Conceal:
+ return "conceal"
+ default:
+ return ""
+ }
+}
+
+func (s Style) enable() attribute {
+ switch s {
+ case Bold:
+ return 1
+ case Faint:
+ return 2
+ case Italic:
+ return 3
+ case Underline:
+ return 4
+ case Blink:
+ return 5
+ case Reverse:
+ return 7
+ case Conceal:
+ return 8
+ case Strikethrough:
+ return 9
+ default:
+ return unknownAttribute
+ }
+}
+
+func (s Style) disable() attribute {
+ value := s.enable()
+ if value != unknownAttribute {
+ return value + 20
+ }
+ return value
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/tabwriter.go b/switchq/vendor/github.com/juju/ansiterm/tabwriter.go
new file mode 100644
index 0000000..1ff6faa
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/tabwriter.go
@@ -0,0 +1,64 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+import (
+ "io"
+
+ "github.com/juju/ansiterm/tabwriter"
+)
+
+// NewTabWriter returns a writer that is able to set colors and styels.
+// The ansi escape codes are stripped for width calculations.
+func NewTabWriter(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter {
+ return new(TabWriter).Init(output, minwidth, tabwidth, padding, padchar, flags)
+}
+
+// TabWriter is a filter that inserts padding around tab-delimited
+// columns in its input to align them in the output.
+//
+// It also setting of colors and styles over and above the standard
+// tabwriter package.
+type TabWriter struct {
+ Writer
+ tw tabwriter.Writer
+}
+
+// Flush should be called after the last call to Write to ensure
+// that any data buffered in the Writer is written to output. Any
+// incomplete escape sequence at the end is considered
+// complete for formatting purposes.
+//
+func (t *TabWriter) Flush() error {
+ return t.tw.Flush()
+}
+
+// SetColumnAlignRight will mark a particular column as align right.
+// This is reset on the next flush.
+func (t *TabWriter) SetColumnAlignRight(column int) {
+ t.tw.SetColumnAlignRight(column)
+}
+
+// A Writer must be initialized with a call to Init. The first parameter (output)
+// specifies the filter output. The remaining parameters control the formatting:
+//
+// minwidth minimal cell width including any padding
+// tabwidth width of tab characters (equivalent number of spaces)
+// padding padding added to a cell before computing its width
+// padchar ASCII char used for padding
+// if padchar == '\t', the Writer will assume that the
+// width of a '\t' in the formatted output is tabwidth,
+// and cells are left-aligned independent of align_left
+// (for correct-looking results, tabwidth must correspond
+// to the tab width in the viewer displaying the result)
+// flags formatting control
+//
+func (t *TabWriter) Init(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *TabWriter {
+ writer, colorCapable := colorEnabledWriter(output)
+ t.Writer = Writer{
+ Writer: t.tw.Init(writer, minwidth, tabwidth, padding, padchar, flags),
+ noColor: !colorCapable,
+ }
+ return t
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/tabwriter/tabwriter.go b/switchq/vendor/github.com/juju/ansiterm/tabwriter/tabwriter.go
new file mode 100644
index 0000000..98949d0
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/tabwriter/tabwriter.go
@@ -0,0 +1,587 @@
+// Copyright 2009 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// This file is mostly a copy of the go standard library text/tabwriter. With
+// the additional stripping of ansi control characters for width calculations.
+
+// Package tabwriter implements a write filter (tabwriter.Writer) that
+// translates tabbed columns in input into properly aligned text.
+//
+// The package is using the Elastic Tabstops algorithm described at
+// http://nickgravgaard.com/elastictabstops/index.html.
+//
+package tabwriter
+
+import (
+ "bytes"
+ "io"
+ "unicode/utf8"
+
+ "github.com/lunixbochs/vtclean"
+)
+
+// ----------------------------------------------------------------------------
+// Filter implementation
+
+// A cell represents a segment of text terminated by tabs or line breaks.
+// The text itself is stored in a separate buffer; cell only describes the
+// segment's size in bytes, its width in runes, and whether it's an htab
+// ('\t') terminated cell.
+//
+type cell struct {
+ size int // cell size in bytes
+ width int // cell width in runes
+ htab bool // true if the cell is terminated by an htab ('\t')
+}
+
+// A Writer is a filter that inserts padding around tab-delimited
+// columns in its input to align them in the output.
+//
+// The Writer treats incoming bytes as UTF-8 encoded text consisting
+// of cells terminated by (horizontal or vertical) tabs or line
+// breaks (newline or formfeed characters). Cells in adjacent lines
+// constitute a column. The Writer inserts padding as needed to
+// make all cells in a column have the same width, effectively
+// aligning the columns. It assumes that all characters have the
+// same width except for tabs for which a tabwidth must be specified.
+// Note that cells are tab-terminated, not tab-separated: trailing
+// non-tab text at the end of a line does not form a column cell.
+//
+// The Writer assumes that all Unicode code points have the same width;
+// this may not be true in some fonts.
+//
+// If DiscardEmptyColumns is set, empty columns that are terminated
+// entirely by vertical (or "soft") tabs are discarded. Columns
+// terminated by horizontal (or "hard") tabs are not affected by
+// this flag.
+//
+// If a Writer is configured to filter HTML, HTML tags and entities
+// are passed through. The widths of tags and entities are
+// assumed to be zero (tags) and one (entities) for formatting purposes.
+//
+// A segment of text may be escaped by bracketing it with Escape
+// characters. The tabwriter passes escaped text segments through
+// unchanged. In particular, it does not interpret any tabs or line
+// breaks within the segment. If the StripEscape flag is set, the
+// Escape characters are stripped from the output; otherwise they
+// are passed through as well. For the purpose of formatting, the
+// width of the escaped text is always computed excluding the Escape
+// characters.
+//
+// The formfeed character ('\f') acts like a newline but it also
+// terminates all columns in the current line (effectively calling
+// Flush). Cells in the next line start new columns. Unless found
+// inside an HTML tag or inside an escaped text segment, formfeed
+// characters appear as newlines in the output.
+//
+// The Writer must buffer input internally, because proper spacing
+// of one line may depend on the cells in future lines. Clients must
+// call Flush when done calling Write.
+//
+type Writer struct {
+ // configuration
+ output io.Writer
+ minwidth int
+ tabwidth int
+ padding int
+ padbytes [8]byte
+ flags uint
+
+ // current state
+ buf bytes.Buffer // collected text excluding tabs or line breaks
+ pos int // buffer position up to which cell.width of incomplete cell has been computed
+ cell cell // current incomplete cell; cell.width is up to buf[pos] excluding ignored sections
+ endChar byte // terminating char of escaped sequence (Escape for escapes, '>', ';' for HTML tags/entities, or 0)
+ lines [][]cell // list of lines; each line is a list of cells
+ widths []int // list of column widths in runes - re-used during formatting
+ alignment map[int]uint // column alignment
+}
+
+func (b *Writer) addLine() { b.lines = append(b.lines, []cell{}) }
+
+// Reset the current state.
+func (b *Writer) reset() {
+ b.buf.Reset()
+ b.pos = 0
+ b.cell = cell{}
+ b.endChar = 0
+ b.lines = b.lines[0:0]
+ b.widths = b.widths[0:0]
+ b.alignment = make(map[int]uint)
+ b.addLine()
+}
+
+// Internal representation (current state):
+//
+// - all text written is appended to buf; tabs and line breaks are stripped away
+// - at any given time there is a (possibly empty) incomplete cell at the end
+// (the cell starts after a tab or line break)
+// - cell.size is the number of bytes belonging to the cell so far
+// - cell.width is text width in runes of that cell from the start of the cell to
+// position pos; html tags and entities are excluded from this width if html
+// filtering is enabled
+// - the sizes and widths of processed text are kept in the lines list
+// which contains a list of cells for each line
+// - the widths list is a temporary list with current widths used during
+// formatting; it is kept in Writer because it's re-used
+//
+// |<---------- size ---------->|
+// | |
+// |<- width ->|<- ignored ->| |
+// | | | |
+// [---processed---tab------------<tag>...</tag>...]
+// ^ ^ ^
+// | | |
+// buf start of incomplete cell pos
+
+// Formatting can be controlled with these flags.
+const (
+ // Ignore html tags and treat entities (starting with '&'
+ // and ending in ';') as single characters (width = 1).
+ FilterHTML uint = 1 << iota
+
+ // Strip Escape characters bracketing escaped text segments
+ // instead of passing them through unchanged with the text.
+ StripEscape
+
+ // Force right-alignment of cell content.
+ // Default is left-alignment.
+ AlignRight
+
+ // Handle empty columns as if they were not present in
+ // the input in the first place.
+ DiscardEmptyColumns
+
+ // Always use tabs for indentation columns (i.e., padding of
+ // leading empty cells on the left) independent of padchar.
+ TabIndent
+
+ // Print a vertical bar ('|') between columns (after formatting).
+ // Discarded columns appear as zero-width columns ("||").
+ Debug
+)
+
+// A Writer must be initialized with a call to Init. The first parameter (output)
+// specifies the filter output. The remaining parameters control the formatting:
+//
+// minwidth minimal cell width including any padding
+// tabwidth width of tab characters (equivalent number of spaces)
+// padding padding added to a cell before computing its width
+// padchar ASCII char used for padding
+// if padchar == '\t', the Writer will assume that the
+// width of a '\t' in the formatted output is tabwidth,
+// and cells are left-aligned independent of align_left
+// (for correct-looking results, tabwidth must correspond
+// to the tab width in the viewer displaying the result)
+// flags formatting control
+//
+func (b *Writer) Init(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *Writer {
+ if minwidth < 0 || tabwidth < 0 || padding < 0 {
+ panic("negative minwidth, tabwidth, or padding")
+ }
+ b.output = output
+ b.minwidth = minwidth
+ b.tabwidth = tabwidth
+ b.padding = padding
+ for i := range b.padbytes {
+ b.padbytes[i] = padchar
+ }
+ if padchar == '\t' {
+ // tab padding enforces left-alignment
+ flags &^= AlignRight
+ }
+ b.flags = flags
+
+ b.reset()
+
+ return b
+}
+
+// debugging support (keep code around)
+func (b *Writer) dump() {
+ pos := 0
+ for i, line := range b.lines {
+ print("(", i, ") ")
+ for _, c := range line {
+ print("[", string(b.buf.Bytes()[pos:pos+c.size]), "]")
+ pos += c.size
+ }
+ print("\n")
+ }
+ print("\n")
+}
+
+// local error wrapper so we can distinguish errors we want to return
+// as errors from genuine panics (which we don't want to return as errors)
+type osError struct {
+ err error
+}
+
+func (b *Writer) write0(buf []byte) {
+ n, err := b.output.Write(buf)
+ if n != len(buf) && err == nil {
+ err = io.ErrShortWrite
+ }
+ if err != nil {
+ panic(osError{err})
+ }
+}
+
+func (b *Writer) writeN(src []byte, n int) {
+ for n > len(src) {
+ b.write0(src)
+ n -= len(src)
+ }
+ b.write0(src[0:n])
+}
+
+var (
+ newline = []byte{'\n'}
+ tabs = []byte("\t\t\t\t\t\t\t\t")
+)
+
+func (b *Writer) writePadding(textw, cellw int, useTabs bool) {
+ if b.padbytes[0] == '\t' || useTabs {
+ // padding is done with tabs
+ if b.tabwidth == 0 {
+ return // tabs have no width - can't do any padding
+ }
+ // make cellw the smallest multiple of b.tabwidth
+ cellw = (cellw + b.tabwidth - 1) / b.tabwidth * b.tabwidth
+ n := cellw - textw // amount of padding
+ if n < 0 {
+ panic("internal error")
+ }
+ b.writeN(tabs, (n+b.tabwidth-1)/b.tabwidth)
+ return
+ }
+
+ // padding is done with non-tab characters
+ b.writeN(b.padbytes[0:], cellw-textw)
+}
+
+var vbar = []byte{'|'}
+
+func (b *Writer) writeLines(pos0 int, line0, line1 int) (pos int) {
+ pos = pos0
+ for i := line0; i < line1; i++ {
+ line := b.lines[i]
+
+ // if TabIndent is set, use tabs to pad leading empty cells
+ useTabs := b.flags&TabIndent != 0
+
+ for j, c := range line {
+ if j > 0 && b.flags&Debug != 0 {
+ // indicate column break
+ b.write0(vbar)
+ }
+
+ if c.size == 0 {
+ // empty cell
+ if j < len(b.widths) {
+ b.writePadding(c.width, b.widths[j], useTabs)
+ }
+ } else {
+ // non-empty cell
+ useTabs = false
+ alignColumnRight := b.alignment[j] == AlignRight
+ if (b.flags&AlignRight == 0) && !alignColumnRight { // align left
+ b.write0(b.buf.Bytes()[pos : pos+c.size])
+ pos += c.size
+ if j < len(b.widths) {
+ b.writePadding(c.width, b.widths[j], false)
+ }
+ } else if alignColumnRight && j < len(b.widths) {
+ // just this column
+ internalSize := b.widths[j] - b.padding
+ if j < len(b.widths) {
+ b.writePadding(c.width, internalSize, false)
+ }
+ b.write0(b.buf.Bytes()[pos : pos+c.size])
+ if b.padding > 0 {
+ b.writePadding(0, b.padding, false)
+ }
+ pos += c.size
+ } else { // align right
+ if j < len(b.widths) {
+ b.writePadding(c.width, b.widths[j], false)
+ }
+ b.write0(b.buf.Bytes()[pos : pos+c.size])
+ pos += c.size
+ }
+ }
+ }
+
+ if i+1 == len(b.lines) {
+ // last buffered line - we don't have a newline, so just write
+ // any outstanding buffered data
+ b.write0(b.buf.Bytes()[pos : pos+b.cell.size])
+ pos += b.cell.size
+ } else {
+ // not the last line - write newline
+ b.write0(newline)
+ }
+ }
+ return
+}
+
+// Format the text between line0 and line1 (excluding line1); pos
+// is the buffer position corresponding to the beginning of line0.
+// Returns the buffer position corresponding to the beginning of
+// line1 and an error, if any.
+//
+func (b *Writer) format(pos0 int, line0, line1 int) (pos int) {
+ pos = pos0
+ column := len(b.widths)
+ for this := line0; this < line1; this++ {
+ line := b.lines[this]
+
+ if column < len(line)-1 {
+ // cell exists in this column => this line
+ // has more cells than the previous line
+ // (the last cell per line is ignored because cells are
+ // tab-terminated; the last cell per line describes the
+ // text before the newline/formfeed and does not belong
+ // to a column)
+
+ // print unprinted lines until beginning of block
+ pos = b.writeLines(pos, line0, this)
+ line0 = this
+
+ // column block begin
+ width := b.minwidth // minimal column width
+ discardable := true // true if all cells in this column are empty and "soft"
+ for ; this < line1; this++ {
+ line = b.lines[this]
+ if column < len(line)-1 {
+ // cell exists in this column
+ c := line[column]
+ // update width
+ if w := c.width + b.padding; w > width {
+ width = w
+ }
+ // update discardable
+ if c.width > 0 || c.htab {
+ discardable = false
+ }
+ } else {
+ break
+ }
+ }
+ // column block end
+
+ // discard empty columns if necessary
+ if discardable && b.flags&DiscardEmptyColumns != 0 {
+ width = 0
+ }
+
+ // format and print all columns to the right of this column
+ // (we know the widths of this column and all columns to the left)
+ b.widths = append(b.widths, width) // push width
+ pos = b.format(pos, line0, this)
+ b.widths = b.widths[0 : len(b.widths)-1] // pop width
+ line0 = this
+ }
+ }
+
+ // print unprinted lines until end
+ return b.writeLines(pos, line0, line1)
+}
+
+// Append text to current cell.
+func (b *Writer) append(text []byte) {
+ b.buf.Write(text)
+ b.cell.size += len(text)
+}
+
+// Update the cell width.
+func (b *Writer) updateWidth() {
+ // ---- Changes here -----
+ newChars := b.buf.Bytes()[b.pos:b.buf.Len()]
+ cleaned := vtclean.Clean(string(newChars), false) // false to strip colors
+ b.cell.width += utf8.RuneCount([]byte(cleaned))
+ // --- end of changes ----
+ b.pos = b.buf.Len()
+}
+
+// To escape a text segment, bracket it with Escape characters.
+// For instance, the tab in this string "Ignore this tab: \xff\t\xff"
+// does not terminate a cell and constitutes a single character of
+// width one for formatting purposes.
+//
+// The value 0xff was chosen because it cannot appear in a valid UTF-8 sequence.
+//
+const Escape = '\xff'
+
+// Start escaped mode.
+func (b *Writer) startEscape(ch byte) {
+ switch ch {
+ case Escape:
+ b.endChar = Escape
+ case '<':
+ b.endChar = '>'
+ case '&':
+ b.endChar = ';'
+ }
+}
+
+// Terminate escaped mode. If the escaped text was an HTML tag, its width
+// is assumed to be zero for formatting purposes; if it was an HTML entity,
+// its width is assumed to be one. In all other cases, the width is the
+// unicode width of the text.
+//
+func (b *Writer) endEscape() {
+ switch b.endChar {
+ case Escape:
+ b.updateWidth()
+ if b.flags&StripEscape == 0 {
+ b.cell.width -= 2 // don't count the Escape chars
+ }
+ case '>': // tag of zero width
+ case ';':
+ b.cell.width++ // entity, count as one rune
+ }
+ b.pos = b.buf.Len()
+ b.endChar = 0
+}
+
+// Terminate the current cell by adding it to the list of cells of the
+// current line. Returns the number of cells in that line.
+//
+func (b *Writer) terminateCell(htab bool) int {
+ b.cell.htab = htab
+ line := &b.lines[len(b.lines)-1]
+ *line = append(*line, b.cell)
+ b.cell = cell{}
+ return len(*line)
+}
+
+func handlePanic(err *error, op string) {
+ if e := recover(); e != nil {
+ if nerr, ok := e.(osError); ok {
+ *err = nerr.err
+ return
+ }
+ panic("tabwriter: panic during " + op)
+ }
+}
+
+// Flush should be called after the last call to Write to ensure
+// that any data buffered in the Writer is written to output. Any
+// incomplete escape sequence at the end is considered
+// complete for formatting purposes.
+//
+func (b *Writer) Flush() (err error) {
+ defer b.reset() // even in the presence of errors
+ defer handlePanic(&err, "Flush")
+
+ // add current cell if not empty
+ if b.cell.size > 0 {
+ if b.endChar != 0 {
+ // inside escape - terminate it even if incomplete
+ b.endEscape()
+ }
+ b.terminateCell(false)
+ }
+
+ // format contents of buffer
+ b.format(0, 0, len(b.lines))
+
+ return
+}
+
+var hbar = []byte("---\n")
+
+// SetColumnAlignRight will mark a particular column as align right.
+// This is reset on the next flush.
+func (b *Writer) SetColumnAlignRight(column int) {
+ b.alignment[column] = AlignRight
+}
+
+// Write writes buf to the writer b.
+// The only errors returned are ones encountered
+// while writing to the underlying output stream.
+//
+func (b *Writer) Write(buf []byte) (n int, err error) {
+ defer handlePanic(&err, "Write")
+
+ // split text into cells
+ n = 0
+ for i, ch := range buf {
+ if b.endChar == 0 {
+ // outside escape
+ switch ch {
+ case '\t', '\v', '\n', '\f':
+ // end of cell
+ b.append(buf[n:i])
+ b.updateWidth()
+ n = i + 1 // ch consumed
+ ncells := b.terminateCell(ch == '\t')
+ if ch == '\n' || ch == '\f' {
+ // terminate line
+ b.addLine()
+ if ch == '\f' || ncells == 1 {
+ // A '\f' always forces a flush. Otherwise, if the previous
+ // line has only one cell which does not have an impact on
+ // the formatting of the following lines (the last cell per
+ // line is ignored by format()), thus we can flush the
+ // Writer contents.
+ if err = b.Flush(); err != nil {
+ return
+ }
+ if ch == '\f' && b.flags&Debug != 0 {
+ // indicate section break
+ b.write0(hbar)
+ }
+ }
+ }
+
+ case Escape:
+ // start of escaped sequence
+ b.append(buf[n:i])
+ b.updateWidth()
+ n = i
+ if b.flags&StripEscape != 0 {
+ n++ // strip Escape
+ }
+ b.startEscape(Escape)
+
+ case '<', '&':
+ // possibly an html tag/entity
+ if b.flags&FilterHTML != 0 {
+ // begin of tag/entity
+ b.append(buf[n:i])
+ b.updateWidth()
+ n = i
+ b.startEscape(ch)
+ }
+ }
+
+ } else {
+ // inside escape
+ if ch == b.endChar {
+ // end of tag/entity
+ j := i + 1
+ if ch == Escape && b.flags&StripEscape != 0 {
+ j = i // strip Escape
+ }
+ b.append(buf[n:j])
+ n = i + 1 // ch consumed
+ b.endEscape()
+ }
+ }
+ }
+
+ // append leftover text
+ b.append(buf[n:])
+ n = len(buf)
+ return
+}
+
+// NewWriter allocates and initializes a new tabwriter.Writer.
+// The parameters are the same as for the Init function.
+//
+func NewWriter(output io.Writer, minwidth, tabwidth, padding int, padchar byte, flags uint) *Writer {
+ return new(Writer).Init(output, minwidth, tabwidth, padding, padchar, flags)
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/terminal.go b/switchq/vendor/github.com/juju/ansiterm/terminal.go
new file mode 100644
index 0000000..96fd11c
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/terminal.go
@@ -0,0 +1,32 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+import (
+ "io"
+ "os"
+
+ "github.com/mattn/go-colorable"
+ "github.com/mattn/go-isatty"
+)
+
+// colorEnabledWriter returns a writer that can handle the ansi color codes
+// and true if the writer passed in is a terminal capable of color. If the
+// TERM environment variable is set to "dumb", the terminal is not considered
+// color capable.
+func colorEnabledWriter(w io.Writer) (io.Writer, bool) {
+ f, ok := w.(*os.File)
+ if !ok {
+ return w, false
+ }
+ // Check the TERM environment variable specifically
+ // to check for "dumb" terminals.
+ if os.Getenv("TERM") == "dumb" {
+ return w, false
+ }
+ if !isatty.IsTerminal(f.Fd()) {
+ return w, false
+ }
+ return colorable.NewColorable(f), true
+}
diff --git a/switchq/vendor/github.com/juju/ansiterm/writer.go b/switchq/vendor/github.com/juju/ansiterm/writer.go
new file mode 100644
index 0000000..32437bb
--- /dev/null
+++ b/switchq/vendor/github.com/juju/ansiterm/writer.go
@@ -0,0 +1,74 @@
+// Copyright 2016 Canonical Ltd.
+// Licensed under the LGPLv3, see LICENCE file for details.
+
+package ansiterm
+
+import (
+ "fmt"
+ "io"
+)
+
+// Writer allows colors and styles to be specified. If the io.Writer
+// is not a terminal capable of color, all attempts to set colors or
+// styles are no-ops.
+type Writer struct {
+ io.Writer
+
+ noColor bool
+}
+
+// NewWriter returns a Writer that allows the caller to specify colors and
+// styles. If the io.Writer is not a terminal capable of color, all attempts
+// to set colors or styles are no-ops.
+func NewWriter(w io.Writer) *Writer {
+ writer, colorCapable := colorEnabledWriter(w)
+ return &Writer{
+ Writer: writer,
+ noColor: !colorCapable,
+ }
+}
+
+// SetColorCapable forces the writer to either write the ANSI escape color
+// if capable is true, or to not write them if capable is false.
+func (w *Writer) SetColorCapable(capable bool) {
+ w.noColor = !capable
+}
+
+// SetForeground sets the foreground color.
+func (w *Writer) SetForeground(c Color) {
+ w.writeSGR(c.foreground())
+}
+
+// SetBackground sets the background color.
+func (w *Writer) SetBackground(c Color) {
+ w.writeSGR(c.background())
+}
+
+// SetStyle sets the text style.
+func (w *Writer) SetStyle(s Style) {
+ w.writeSGR(s.enable())
+}
+
+// ClearStyle clears the text style.
+func (w *Writer) ClearStyle(s Style) {
+ w.writeSGR(s.disable())
+}
+
+// Reset returns the default foreground and background colors with no styles.
+func (w *Writer) Reset() {
+ w.writeSGR(reset)
+}
+
+type sgr interface {
+ // sgr returns the combined escape sequence for the Select Graphic Rendition.
+ sgr() string
+}
+
+// writeSGR takes the appropriate integer SGR parameters
+// and writes out the ANIS escape code.
+func (w *Writer) writeSGR(value sgr) {
+ if w.noColor {
+ return
+ }
+ fmt.Fprint(w, value.sgr())
+}