ver

package main

import (
	"log/slog"
	"os"

	"github.com/LeKovr/go-kit/ver"
)

var (
	version = "0.0-dev"

	repo = "git@github.com:LeKovr/dbrpc.git"
)

func replace(groups []string, a slog.Attr) slog.Attr {

	if a.Key == slog.TimeKey {
		return slog.Attr{}
	}
	return a
}

func main() {
	logger := slog.New(slog.NewJSONHandler(os.Stdout, &slog.HandlerOptions{ReplaceAttr: replace}))
	slog.SetDefault(logger)
	ver.Check(repo, version)
}

Output:

{"level":"INFO","msg":"App version is outdated","appVersion":"0.0-dev","sourceVersion":"v0.31","sourceUpdated":"2017-10-17T08:56:03Z","sourceLink":" See https://github.com/LeKovr/dbrpc/releases/tag/v0.31"}