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Using the main.version ldflag

Defaults-wise GoReleaser sets three ldflags:

  • main.version: Current Git tag (the v prefix is stripped) or the name of the snapshot, if you're using the --snapshot flag
  • main.commit: Current git commit SHA
  • Date according RFC3339

You can use them in your main.go file to print more build details:

package main

import "fmt"

var (
    version = "dev"
    commit  = "none"
    date    = "unknown"
    builtBy = "unknown"

func main() {
  fmt.Printf("my app %s, commit %s, built at %s by %s", version, commit, date, builtBy)

You can override this by changing the ldflags option in the build section.