为程序添加版本功能
选项解释
- -v 用于获取可执行文件信息
- -ldflags 指定参数替换
- -X 指定命令行传参
- main.gitTag 包名.参数名
编译
go build -v -ldflags "-X main.gitTag=1 -X main.gitCommit=2 -X main.gitTreeState=3 -X main.buildDate=4"
查看版本信息
- 执行可执行程序 -v
-
xxxx -v
F:\go_home\src\myselft\goVersion>goVersion.exe -v { "gitTaggitTag": "1", "gitCommit": "2", "gitTreeState": "3", "buildDate": "4", "goVersion": "go1.12.4", "compiler": "gc", "platform": "windows/amd64" }
shell脚本（Makefile）
versionDir = "demo/pkg/version"
gitTag = $(shell if [ "`git describe --tags --abbrev=0 2>/dev/null`" != "" ];then git describe --tags --abbrev=0; else git log --pretty=format:'%h' -n 1; fi)
buildDate = $(shell TZ=Asia/Shanghai date +%FT%T%z)
gitCommit = $(shell git log --pretty=format:'%H' -n 1)
gitTreeState = $(shell if git status|grep -q 'clean';then echo clean; else echo dirty; fi)
ldflags="-w -X ${versionDir}.gitTag=${gitTag} -X ${versionDir}.buildDate=${buildDate} -X ${versionDir}.gitCommit=${gitCommit} -X ${versionDir}.gitTreeState=${gitTreeState}"
go build -v -ldflags ${ldflags} .
通过此脚本，可以获得版本信息有：build的时间，git commit的时间，git tag等
