1package main
2
3import "fmt"
4
5var version string
6
7func main() {
8	fmt.Println(version)
9}

1go build -ldflags "-X main.version=123" main.go

 1package main
 2
 3import (
 4    "fmt"
 5    "csz.net/goForward/conf"
 6)
 7
 8func main() {
 9	fmt.Println(conf.Version)
10}

1go build -ldflags "-X csz.net/goForward/conf.Version=123"

1go build -ldflags "-X main.version=${GITHUB_REF/refs\/tags\//}" -o main.go