zerolog日志高级使用

使用github.com/pkg/errors打印详细的堆栈信息，输出非常友好。

设置堆栈打印详细调用过程

zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack

输出详细的堆栈信息

package main

import (
    "github.com/pkg/errors"
    "github.com/rs/zerolog"
    "github.com/rs/zerolog/log"
    "github.com/rs/zerolog/pkgerrors"
     "github.com/thinkeridea/go-extend/exbytes"
    "github.com/thinkeridea/go-extend/exstrings"
    "os"
    "strconv"
)

func C() error {
    _, err := os.Open("err")
    if err != nil {
        return errors.WithStack(err)
    }
    return nil
}

func B() error {
    return C()
}
func A() error {
    return B()
}
func init() {

    log.Logger = zerolog.New(os.Stderr).
        With().Timestamp().Stack().CallerWithSkipFrameCount(2).Logger()
    zerolog.CallerMarshalFunc = func(file string, line int) string {
        return WashPath(file) +":"+ strconv.Itoa(line)
    }
    // 使用官方提供的，输出更友好
    zerolog.ErrorStackMarshaler = pkgerrors.MarshalStack
}

func main() {
    err := A()
    if err != nil {
        log.Error().Stack().Err(err).Msg("")
    }
}
// 路径脱敏
func WashPath(s string) string {
    sb := exstrings.Bytes(s)
    path, _ := os.Getwd()
    pathByte := exbytes.Replace([]byte(path+"/"), []byte("\\"), []byte("/"), -1)
    root := os.Getenv("GOROOT")
    rootByte := exbytes.Replace([]byte(root+"/"), []byte("\\"), []byte("/"), -1)
    sb = exbytes.Replace(sb, pathByte, []byte(""), -1)
    sb = exbytes.Replace(sb, rootByte, []byte(""), -1)
    return exbytes.ToString(sb)
}

效果

{
    "level":"error",
    "stack":[
        {
            "func":"C",
            "line":"17",
            "source":"main.go"
        },
        {
            "func":"B",
            "line":"23",
            "source":"main.go"
        },
        {
            "func":"A",
            "line":"26",
            "source":"main.go"
        },
        {
            "func":"main",
            "line":"51",
            "source":"main.go"
        },
        {
            "func":"main",
            "line":"203",
            "source":"proc.go"
        },
        {
            "func":"goexit",
            "line":"1373",
            "source":"asm_amd64.s"
        }
    ],
    "error":"open err: The system cannot find the file specified.",
    "time":"2020-03-27T20:15:03+08:00",
    "caller":"zerolog_errors/main.go:55"
}