mirror of https://github.com/prometheus/prometheus
Signed-off-by: tariqibrahim <tariq.ibrahim@microsoft.com>pull/4927/head
tariqibrahim
6 years ago
commit
1fd438ed2b
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MIT License
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Copyright (c) 2018 Kubermatic
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Permission is hereby granted, free of charge, to any person obtaining a copy
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of this software and associated documentation files (the "Software"), to deal
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in the Software without restriction, including without limitation the rights
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to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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copies of the Software, and to permit persons to whom the Software is
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furnished to do so, subject to the following conditions:
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The above copyright notice and this permission notice shall be included in all
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copies or substantial portions of the Software.
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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SOFTWARE.
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# glog-gokit
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This packages is a replacement for [glog](github.com/golang/glog)
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in projects that use the [go-kit logger](https://godoc.org/github.com/go-kit/kit/log).
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It is inspired by istio's glog package for zap:
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https://github.com/istio/glog
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## Usage
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Override the official glog package with this one.
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This simply replaces the code in `vendor/golang/glog` with the code of this package.
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In your `Gopkg.toml`:
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```toml
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[[override]]
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name = "github.com/golang/glog"
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source = "github.com/kubermatic/glog-gokit"
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```
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In your `main.go`:
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```go
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// Import the package like it is original glog
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import "github.com/golang/glog"
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// Create go-kit logger in your main.go
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logger := log.NewLogfmtLogger(log.NewSyncWriter(os.Stdout))
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logger = log.With(logger, "ts", log.DefaultTimestampUTC)
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logger = log.With(logger, "caller", log.DefaultCaller)
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logger = level.NewFilter(logger, level.AllowAll())
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// Overriding the default glog with our go-kit glog implementation.
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// Thus we need to pass it our go-kit logger object.
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glog.SetLogger(logger)
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```
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Setting the logger to the glog package **MUST** happen before using glog in any package.
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## Function Levels
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| glog | gokit |
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| ------------ | ----- |
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| Info | Debug |
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| InfoDepth | Debug |
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| Infof | Debug |
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| Infoln | Debug |
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| Warning | Warn |
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| WarningDepth | Warn |
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| Warningf | Warn |
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| Warningln | Warn |
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| Error | Error |
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| ErrorDepth | Error |
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| Errorf | Error |
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| Errorln | Error |
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| Exit | Error |
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| ExitDepth | Error |
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| Exitf | Error |
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| Exitln | Error |
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| Fatal | Error |
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| FatalDepth | Error |
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| Fatalf | Error |
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| Fatalln | Error |
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This table is rather opinionated and build for use with the Kubernetes' [Go client](https://github.com/kubernetes/client-go).
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@ -0,0 +1,143 @@
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package glog
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import (
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"fmt"
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"math"
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"os"
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"sync"
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"github.com/go-kit/kit/log"
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"github.com/go-kit/kit/log/level"
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)
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var maxLevel Level = math.MaxInt32
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var logger = log.NewNopLogger()
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var mu = sync.Mutex{}
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// SetLogger redirects glog logging to the given logger.
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// It must be called prior any call to glog.
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func SetLogger(l log.Logger) {
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mu.Lock()
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logger = l
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mu.Unlock()
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}
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// ClampLevel clamps the leveled logging at the specified value.
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// It must be called prior any call to glog.
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func ClampLevel(l Level) {
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mu.Lock()
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maxLevel = l
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mu.Unlock()
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}
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type Level int32
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type Verbose bool
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func V(level Level) Verbose { return level <= maxLevel }
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func (v Verbose) Info(args ...interface{}) {
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if v {
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level.Debug(logger).Log("func", "Verbose.Info", "msg", fmt.Sprint(args...))
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}
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}
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func (v Verbose) Infoln(args ...interface{}) {
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if v {
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level.Debug(logger).Log("func", "Verbose.Infoln", "msg", fmt.Sprint(args...))
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}
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}
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func (v Verbose) Infof(format string, args ...interface{}) {
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if v {
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level.Debug(logger).Log("func", "Verbose.Infof", "msg", fmt.Sprintf(format, args...))
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}
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}
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func Info(args ...interface{}) {
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level.Debug(logger).Log("func", "Info", "msg", fmt.Sprint(args...))
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}
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func InfoDepth(depth int, args ...interface{}) {
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level.Debug(logger).Log("func", "InfoDepth", "msg", fmt.Sprint(args...))
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}
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func Infoln(args ...interface{}) {
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level.Debug(logger).Log("func", "Infoln", "msg", fmt.Sprint(args...))
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}
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func Infof(format string, args ...interface{}) {
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level.Debug(logger).Log("func", "Infof", "msg", fmt.Sprintf(format, args...))
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}
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func Warning(args ...interface{}) {
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level.Warn(logger).Log("func", "Warning", "msg", fmt.Sprint(args...))
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}
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func WarningDepth(depth int, args ...interface{}) {
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level.Warn(logger).Log("func", "WarningDepth", "msg", fmt.Sprint(args...))
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}
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func Warningln(args ...interface{}) {
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level.Warn(logger).Log("func", "Warningln", "msg", fmt.Sprint(args...))
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}
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func Warningf(format string, args ...interface{}) {
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level.Warn(logger).Log("func", "Warningf", "msg", fmt.Sprintf(format, args...))
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}
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func Error(args ...interface{}) {
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level.Error(logger).Log("func", "Error", "msg", fmt.Sprint(args...))
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}
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func ErrorDepth(depth int, args ...interface{}) {
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level.Error(logger).Log("func", "ErrorDepth", "msg", fmt.Sprint(args...))
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}
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func Errorln(args ...interface{}) {
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level.Error(logger).Log("func", "Errorln", "msg", fmt.Sprint(args...))
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}
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func Errorf(format string, args ...interface{}) {
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level.Error(logger).Log("func", "Errorf", "msg", fmt.Sprintf(format, args...))
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}
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func Fatal(args ...interface{}) {
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level.Error(logger).Log("func", "Fatal", "msg", fmt.Sprint(args...))
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os.Exit(255)
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}
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func FatalDepth(depth int, args ...interface{}) {
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level.Error(logger).Log("func", "FatalDepth", "msg", fmt.Sprint(args...))
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os.Exit(255)
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}
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func Fatalln(args ...interface{}) {
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level.Error(logger).Log("func", "Fatalln", "msg", fmt.Sprint(args...))
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os.Exit(255)
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}
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func Fatalf(format string, args ...interface{}) {
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level.Error(logger).Log("func", "Fatalf", "msg", fmt.Sprintf(format, args...))
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os.Exit(255)
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}
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func Exit(args ...interface{}) {
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level.Error(logger).Log("func", "Exit", "msg", fmt.Sprint(args...))
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os.Exit(1)
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}
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func ExitDepth(depth int, args ...interface{}) {
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level.Error(logger).Log("func", "ExitDepth", "msg", fmt.Sprint(args...))
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os.Exit(1)
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}
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func Exitln(args ...interface{}) {
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level.Error(logger).Log("func", "Exitln", "msg", fmt.Sprint(args...))
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os.Exit(1)
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}
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func Exitf(format string, args ...interface{}) {
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level.Error(logger).Log("func", "Exitf", "msg", fmt.Sprintf(format, args...))
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os.Exit(1)
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}
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