[Golang] How to get imported module/package version from main.go

how-to-get-verion-module.md

[Golang] How to get the version of imported non-standard module from main

tl; dr

Use debug.ReadBuildInfo() of "runtime/debug" module.

ts; dr

This is an example to get the version of "golang.org/x/xerrors" package from the main source code.

package main

import (
	"fmt"

	"log"

	"golang.org/x/xerrors"
	"runtime/debug"
)

func main() {
	buildInfo, ok := debug.ReadBuildInfo()
	if !ok {
		err := xerrors.New("failed to get build info")

		log.Fatal(err)
	}

	for _, modDep := range buildInfo.Deps {
		fmt.Println("module name:", modDep.Path)
		fmt.Println("module version:", modDep.Version)
	}
}
// Output:
// module name: golang.org/x/xerrors
// module version: v0.0.0-20200804184101-5ec99f83aff1

View it online: Go Playground