Logging the filename

package main

import (
	"log"
)

func main() {
	log.Print("standard (default)")

	log.SetFlags(log.LstdFlags | log.Lshortfile)
	log.Print("standard + shortfile")

	log.SetFlags(log.LstdFlags | log.Llongfile)
	log.Print("standard + shortfile")

	log.SetFlags(log.Lshortfile)
	log.Print("shortfile")
}

2020/04/10 09:16:07 standard (default)
2020/04/10 09:16:07 logging_filename.go:11: standard + shortfile
2020/04/10 09:16:07 /home/gabor/work/slides/golang/examples/logging-filename/logging_filename.go:14: standard + shortfile
logging_filename.go:17: shortfile