Girish Gowdra | 6450343 | 2020-01-07 10:59:10 +0530 | [diff] [blame^] | 1 | // Copyright 2019 The etcd Authors |
| 2 | // |
| 3 | // Licensed under the Apache License, Version 2.0 (the "License"); |
| 4 | // you may not use this file except in compliance with the License. |
| 5 | // You may obtain a copy of the License at |
| 6 | // |
| 7 | // http://www.apache.org/licenses/LICENSE-2.0 |
| 8 | // |
| 9 | // Unless required by applicable law or agreed to in writing, software |
| 10 | // distributed under the License is distributed on an "AS IS" BASIS, |
| 11 | // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. |
| 12 | // See the License for the specific language governing permissions and |
| 13 | // limitations under the License. |
| 14 | |
| 15 | package logutil |
| 16 | |
| 17 | import ( |
| 18 | "sort" |
| 19 | |
| 20 | "go.uber.org/zap" |
| 21 | "go.uber.org/zap/zapcore" |
| 22 | ) |
| 23 | |
| 24 | // DefaultZapLoggerConfig defines default zap logger configuration. |
| 25 | var DefaultZapLoggerConfig = zap.Config{ |
| 26 | Level: zap.NewAtomicLevelAt(ConvertToZapLevel(DefaultLogLevel)), |
| 27 | |
| 28 | Development: false, |
| 29 | Sampling: &zap.SamplingConfig{ |
| 30 | Initial: 100, |
| 31 | Thereafter: 100, |
| 32 | }, |
| 33 | |
| 34 | Encoding: "json", |
| 35 | |
| 36 | // copied from "zap.NewProductionEncoderConfig" with some updates |
| 37 | EncoderConfig: zapcore.EncoderConfig{ |
| 38 | TimeKey: "ts", |
| 39 | LevelKey: "level", |
| 40 | NameKey: "logger", |
| 41 | CallerKey: "caller", |
| 42 | MessageKey: "msg", |
| 43 | StacktraceKey: "stacktrace", |
| 44 | LineEnding: zapcore.DefaultLineEnding, |
| 45 | EncodeLevel: zapcore.LowercaseLevelEncoder, |
| 46 | EncodeTime: zapcore.ISO8601TimeEncoder, |
| 47 | EncodeDuration: zapcore.StringDurationEncoder, |
| 48 | EncodeCaller: zapcore.ShortCallerEncoder, |
| 49 | }, |
| 50 | |
| 51 | // Use "/dev/null" to discard all |
| 52 | OutputPaths: []string{"stderr"}, |
| 53 | ErrorOutputPaths: []string{"stderr"}, |
| 54 | } |
| 55 | |
| 56 | // MergeOutputPaths merges logging output paths, resolving conflicts. |
| 57 | func MergeOutputPaths(cfg zap.Config) zap.Config { |
| 58 | outputs := make(map[string]struct{}) |
| 59 | for _, v := range cfg.OutputPaths { |
| 60 | outputs[v] = struct{}{} |
| 61 | } |
| 62 | outputSlice := make([]string, 0) |
| 63 | if _, ok := outputs["/dev/null"]; ok { |
| 64 | // "/dev/null" to discard all |
| 65 | outputSlice = []string{"/dev/null"} |
| 66 | } else { |
| 67 | for k := range outputs { |
| 68 | outputSlice = append(outputSlice, k) |
| 69 | } |
| 70 | } |
| 71 | cfg.OutputPaths = outputSlice |
| 72 | sort.Strings(cfg.OutputPaths) |
| 73 | |
| 74 | errOutputs := make(map[string]struct{}) |
| 75 | for _, v := range cfg.ErrorOutputPaths { |
| 76 | errOutputs[v] = struct{}{} |
| 77 | } |
| 78 | errOutputSlice := make([]string, 0) |
| 79 | if _, ok := errOutputs["/dev/null"]; ok { |
| 80 | // "/dev/null" to discard all |
| 81 | errOutputSlice = []string{"/dev/null"} |
| 82 | } else { |
| 83 | for k := range errOutputs { |
| 84 | errOutputSlice = append(errOutputSlice, k) |
| 85 | } |
| 86 | } |
| 87 | cfg.ErrorOutputPaths = errOutputSlice |
| 88 | sort.Strings(cfg.ErrorOutputPaths) |
| 89 | |
| 90 | return cfg |
| 91 | } |