Golang logrus cut longest file path example

main.go

package main

import (
	"fmt"
	"os"
	"runtime"
	"strings"

	"github.com/sirupsen/logrus"
)

func main() {
	log := logrus.New()
	log.SetReportCaller(true)
	log.Formatter = &logrus.TextFormatter{
		CallerPrettyfier: func(f *runtime.Frame) (string, string) {
			repopath := fmt.Sprintf("%s/src/github.com/miguelmota", os.Getenv("GOPATH"))
			filename := strings.Replace(f.File, repopath, "", -1)
			return fmt.Sprintf("%s()", f.Function), fmt.Sprintf("%s:%d", filename, f.Line)
		},
	}

	log.Println("hello world")

	// OUTPUTS:
	//
	// INFO[0000]/test/main.go:23 main.main() hello world
}