go build详解

go build 命令详解
usage: go build [-o output] [build flags] [packages]
packages是相对于GOROOT/src和GOPATH/src的相对路径。

-ldflag：
-w 去掉调试信息
-s 去掉符号表
-X 注入变量，编译时赋值
常用变量

Module=/pubgo/xxx
GOPATH=$(shell go env GOPATH)
Version=$(shell git tag --sort=committerdate | tail -n 1)
GoVersion=$(shell go version)
BuildTime=$(shell date "+%F %T")
CommitID=$(shell git rev-parse HEAD)
LDFLAGS:=-ldflags "-X '/pubgo/xxx/=${GoVersion}' \
-X '/pubgo/xxx/=${BuildTime}' \
-X '/pubgo/xxx/=${GOPATH}' \
-X '/pubgo/xxx/=${CommitID}' \
-X '/pubgo/xxx/=${Module}' \
-X '/pubgo/xxx/=${Version:-v0.0.1}'"

编译

go build ${LDFLAGS} -mod vendor -race -v -o main main.go
go build -ldflags "-w -s" -mod vendor -race -v -o main main.go

一个例子：

CGO_ENABLED=0 GOOS=linux GOARCH=amd64 go build -ldflags "-X /marmotedu/component-base/pkg/=v1.1.0 -X /marmotedu/component-base/pkg/=6a8f18a190f3079e48eca22b0eba4cb4a2c078d1 -X /marmotedu/component-base/pkg/="dirty" -X /marmotedu/component-base/pkg/=2022-09-22T07:13:47Z" -o /home/going/workspace/golang/src//marmotedu/iam/_output/platforms/linux/amd64/iam-apiserver /marmotedu/iam/cmd/iam-apiserver

参考链接：
go build命令详解
go ldfalgs设置