go-log/formatters/util_fileline.go

package formatters

import (
	"runtime"
	"strings"
)

// FilelineCaller returns file and line for caller
func FilelineCaller(skip int) (file string, line int) {
	for i := 0; i < 10; i++ {
		_, file, line, ok := runtime.Caller(skip + i)
		if !ok {
			return "???", 0
		}

		//fmt.Printf("%s:%d\n", file, line)
		if strings.Contains(file, "go-log/") {
			continue
		}

		// file = pkg/file.go
		n := 0
		for i := len(file) - 1; i > 0; i-- {
			if file[i] == '/' {
				n++
				if n >= 2 {
					file = file[i+1:]
					break
				}
			}
		}
		return file, line
	}

	return "???", 0
}