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‎logrus/00-logrus-baisc.go

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package main
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import (
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"os"
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"github.com/sirupsen/logrus"
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)
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func main() {
10+
log := logrus.New()
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log.Debug("lgorus new") // 这一句不会打印到文件中，因为此时还没有设置setOuput
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file, err := os.OpenFile("debug.log", os.O_CREATE|os.O_APPEND|os.O_WRONLY, os.ModeExclusive)
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if err != nil {
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log.Fatalf("create file debug.log failed:%v", err) // 所以这一句日志也会丢失， 应该用fmt
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}
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defer file.Close()
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log.SetLevel(logrus.DebugLevel)
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log.Formatter = &logrus.JSONFormatter{}
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log.SetOutput(file)
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log.WithField("key", "value").Info("test for withfield")
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log.WithFields(logrus.Fields{
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"animal": "walrus",
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"size": 10,
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}).Info("A group of walrus emerges from the ocean")
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}

‎logrus/01-lgorus-scope.go

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package main
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import (
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"fmt"
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"os"
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7+
"github.com/researchlab/gbp/logrus/scope/a/a1"
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"github.com/researchlab/gbp/logrus/scope/a/a2"
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"github.com/researchlab/gbp/logrus/scope/b"
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"github.com/researchlab/gbp/logrus/scope/logs"
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)
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var mLog = logs.Entry().WithField("scope", "main")
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func main() {
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logFile, err := os.OpenFile("./data/scope.log", os.O_CREATE|os.O_APPEND|os.O_WRONLY, os.ModeExclusive)
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if err != nil {
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fmt.Println("create file scope.log failed:", err) // 所以这一句日志也会丢失， 应该用fmt
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}
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defer logFile.Close()
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logs.Init(logFile)
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mLog.Info("main start")
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a1.Foo()
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b.Boo()
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a2.Doo()
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}

‎logrus/02-logrus-hook.go

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package main
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import (
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"github.com/researchlab/gbp/logrus/hook/logs"
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"github.com/researchlab/gbp/logrus/hook/pkg/a"
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log "github.com/sirupsen/logrus"
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)
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func main() {
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logs.InitLog("debug")
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log.Info("main start")
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a.Aoo()
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}

‎logrus/03-runtime-caller.go

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package main
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import (
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"fmt"
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"runtime"
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)
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func main() {
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foo()
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fmt.Println("boo----")
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boo()
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fmt.Println("coo----")
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coo()
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fmt.Println("doo----")
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doo()
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}
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func foo() {
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pc, file, line, ok := runtime.Caller(1)
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fmt.Println("pc:", pc)
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fmt.Println("file:", file)
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fmt.Println("line:", line)
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fmt.Println("ok:", ok)
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}
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func boo() {
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pc, file, line, ok := runtime.Caller(1)
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fmt.Println("pc:", pc)
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fmt.Println("file:", file)
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fmt.Println("line:", line)
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fmt.Println("ok:", ok)
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}
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func coo() {
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log()
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}
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func doo() {
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log()
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}
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func log() {
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pc, file, line, ok := runtime.Caller(2)
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fmt.Println("pc:", pc)
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fmt.Println("file:", file)
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fmt.Println("line:", line)
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fmt.Println("ok:", ok)
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}

‎logrus/data/hook.log

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[info] 2022-11-10 18:05:21.055 /Users/lihong/workbench/dev/src/github.com/sirupsen/logrus/logger.go:226 main start
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[info] 2022-11-10 18:05:42.054 /Users/lihong/workbench/dev/src/github.com/sirupsen/logrus/logger.go:226 main start
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[info] 2022-11-10 18:06:18.010 /Users/lihong/workbench/dev/src/github.com/sirupsen/logrus/logger.go:226 main start
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[info] 2022-11-10 18:08:32.252 /Users/lihong/workbench/dev/src/github.com/sirupsen/logrus/logger.go:226 main start
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[info] 2022-11-10 18:08:32.252 /Users/lihong/workbench/dev/src/github.com/sirupsen/logrus/logger.go:226 Aoo test
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[info] 2022-11-10 18:08:32.252 /Users/lihong/workbench/dev/src/github.com/researchlab/gbp/logrus/hook/pkg/a/a.go:9 ALog test
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{
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"level": "info",
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"msg": "main start",
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"time": "2022-11-10 18:19:57"
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}
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{
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"level": "info",
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"msg": "Aoo test",
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"time": "2022-11-10 18:19:57"
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}
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{
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"key": "aLog",
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"level": "info",
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"msg": "ALog test",
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"time": "2022-11-10 18:19:57"
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}
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{"level":"info","msg":"main start","time":"2022-11-10 18:20:38"}
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{"level":"info","msg":"Aoo test","time":"2022-11-10 18:20:38"}
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{"key":"aLog","level":"info","msg":"ALog test","time":"2022-11-10 18:20:38"}

‎logrus/data/scope.log

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‎logrus/debug.log

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{"key":"value","level":"info","msg":"test for withfield","time":"2022-11-10T16:17:36+08:00"}
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{"animal":"walrus","level":"info","msg":"A group of walrus emerges from the ocean","size":10,"time":"2022-11-10T16:17:36+08:00"}

‎logrus/go.mod

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module logrus
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go 1.17
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require github.com/sirupsen/logrus v1.9.0
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require golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 // indirect

‎logrus/go.sum

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github.com/davecgh/go-spew v1.1.0/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/davecgh/go-spew v1.1.1 h1:vj9j/u1bqnvCEfJOwUhtlOARqs3+rkHYY13jYWTU97c=
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github.com/davecgh/go-spew v1.1.1/go.mod h1:J7Y8YcW2NihsgmVo/mv3lAwl/skON4iLHjSsI+c5H38=
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github.com/pmezard/go-difflib v1.0.0 h1:4DBwDE0NGyQoBHbLQYPwSUPoCMWR5BEzIk/f1lZbAQM=
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github.com/pmezard/go-difflib v1.0.0/go.mod h1:iKH77koFhYxTK1pcRnkKkqfTogsbg7gZNVY4sRDYZ/4=
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github.com/sirupsen/logrus v1.9.0 h1:trlNQbNUG3OdDrDil03MCb1H2o9nJ1x4/5LYw7byDE0=
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github.com/sirupsen/logrus v1.9.0/go.mod h1:naHLuLoDiP4jHNo9R0sCBMtWGeIprob74mVsIT4qYEQ=
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github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
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github.com/stretchr/testify v1.7.0 h1:nwc3DEeHmmLAfoZucVR881uASk0Mfjw8xYJ99tb5CcY=
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github.com/stretchr/testify v1.7.0/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8 h1:0A+M6Uqn+Eje4kHMK80dtF3JCXC4ykBgQG4Fe06QRhQ=
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golang.org/x/sys v0.0.0-20220715151400-c0bba94af5f8/go.mod h1:oPkhp1MJrh7nUepCBck5+mAzfO9JrbApNNgaTdGDITg=
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gopkg.in/check.v1 v0.0.0-20161208181325-20d25e280405/go.mod h1:Co6ibVJAznAaIkqp8huTwlJQCZ016jof/cbN4VW5Yz0=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c h1:dUUwHk2QECo/6vqA44rthZ8ie2QXMNeKRTHCNY2nXvo=
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gopkg.in/yaml.v3 v3.0.0-20200313102051-9f266ea9e77c/go.mod h1:K4uyk7z7BCEPqu6E+C64Yfv1cQ7kz7rIZviUmN+EgEM=

‎logrus/hook/logs/logs.go

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package logs
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import (
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"encoding/json"
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"fmt"
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"io/ioutil"
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"runtime"
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9+
"github.com/rifflock/lfshook"
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log "github.com/sirupsen/logrus"
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)
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const logDir = "./data"
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const logPath = "hook"
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type MyJSONFormatter struct {
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Time string `json:"time"`
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File string `json:"file"`
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Line int `json:"line"`
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Level string `json:"level"`
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Info string `json:"info"`
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Msg string `json:"msg"`
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}
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func (f *MyJSONFormatter) Format(entry *log.Entry) ([]byte, error) {
26+
logrusJF := &(log.JSONFormatter{})
27+
logrusJF.TimestampFormat = "2006-01-02 15:04:05.000"
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bytes, _ := logrusJF.Format(entry)
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json.Unmarshal(bytes, &f)
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if _, file, no, ok := runtime.Caller(8); ok {
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f.File = file
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f.Line = no
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}
34+
str := fmt.Sprintf("[%s] %s %s:%d %s\n", f.Level, f.Time, f.File, f.Line, f.Msg)
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return []byte(str), nil
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}
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38+
func InitLog(level string) (err error) {
39+
err = setAppLog(level)
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return
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}
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func DefaultJSONFormatter()*log.JSONFormatter{
44+
return &log.JSONFormatter{
45+
TimestampFormat:"2006-01-02 15:04:05",
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//PrettyPrint:true, 表示Json展开打印
47+
}
48+
}
49+
func setAppLog(level string) (err error) {
50+
switch level {
51+
case "debug":
52+
log.SetLevel(log.DebugLevel)
53+
case "info":
54+
log.SetLevel(log.InfoLevel)
55+
case "warn":
56+
log.SetLevel(log.WarnLevel)
57+
case "error":
58+
log.SetLevel(log.ErrorLevel)
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default:
60+
log.Fatal("log conf only allow [debug, info,warn,error], please check your confguire")
61+
}
62+
63+
//os.MkdirAll(logDir+"/"+logPath, os.ModeDir)
64+
//var path = logDir + "/" + logPath + "/" + logPath + ".log"
65+
var path = logDir + "/" + logPath + ".log"
66+
log.SetOutput(ioutil.Discard)
67+
log.AddHook(lfshook.NewHook(
68+
lfshook.PathMap{
69+
log.InfoLevel: path,
70+
log.DebugLevel: path,
71+
log.WarnLevel: path,
72+
log.ErrorLevel: path,
73+
log.FatalLevel: path,
74+
log.PanicLevel: path,
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},
76+
//&MyJSONFormatter{}))
77+
DefaultJSONFormatter()))
78+
return nil
79+
}

‎logrus/hook/pkg/a/a.go

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package a
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import (
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log "github.com/sirupsen/logrus"
4+
)
5+
6+
var aLog = log.WithField("key","aLog")
7+
func Aoo(){
8+
log.Info("Aoo test")
9+
aLog.Info("ALog test")
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}

‎logrus/scope/a/a.go

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package a
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import "github.com/researchlab/gbp/logrus/scope/logs"
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5+
// common
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7+
var ALog = logs.Entry().WithField("scope","a")

‎logrus/scope/a/a1/a1.go

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package a1
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import "github.com/researchlab/gbp/logrus/scope/a"
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import "github.com/sirupsen/logrus"
4+
func Foo(){
5+
a.ALog.Info("a1 foo test")
6+
a.ALog.WithFields(logrus.Fields{
7+
"key":"a1",
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"size":10,
9+
}).Error("with fields test for a1")
10+
}

‎logrus/scope/a/a2/a2.go

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package a2
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import "github.com/sirupsen/logrus"
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var a2Log = logrus.WithField("scope","a2Log")
5+
func Doo(){
6+
a2Log.Info("Doo test")
7+
Eoo()
8+
}
9+
10+
func Eoo(){
11+
a2Log.Info("Eoo test")
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}

‎logrus/scope/b/b.go

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package b
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3+
import "github.com/researchlab/gbp/logrus/scope/logs"
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import "github.com/researchlab/gbp/logrus/scope/c"
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6+
// commone
7+
var bLog = logs.Entry()
8+
9+
func Boo(){
10+
bLog.WithField("func","boo").Info("b boo test")
11+
c.Coo()
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}

‎logrus/scope/c/c.go

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package c
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import "github.com/researchlab/gbp/logrus/scope/logs"
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var cLog = logs.Entry().WithField("scope","c")
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func Coo(){
6+
cLog.Info("Coo test")
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}

‎logrus/scope/logs/log.go

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package logs
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3+
import (
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"os"
5+
6+
"github.com/sirupsen/logrus"
7+
)
8+
9+
var serviceLog = logrus.New()
10+
11+
func Init(logFile *os.File) {
12+
serviceLog.SetLevel(logrus.DebugLevel)
13+
serviceLog.Formatter = &logrus.JSONFormatter{}
14+
serviceLog.SetOutput(logFile)
15+
}
16+
17+
func Logger() *logrus.Logger {
18+
return serviceLog
19+
}
20+
21+
func Entry() *logrus.Entry {
22+
return serviceLog.WithField("service", "scope")
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}

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