minio/buildscripts/gen-ldflags.go
2021-08-18 18:35:22 -07:00

114 lines
3.1 KiB
Go

//go:build ignore
// +build ignore
// Copyright (c) 2015-2021 MinIO, Inc.
//
// This file is part of MinIO Object Storage stack
//
// This program is free software: you can redistribute it and/or modify
// it under the terms of the GNU Affero General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// This program is distributed in the hope that it will be useful
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU Affero General Public License for more details.
//
// You should have received a copy of the GNU Affero General Public License
// along with this program. If not, see <http://www.gnu.org/licenses/>.
package main
import (
"fmt"
"os"
"os/exec"
"strings"
"time"
)
func genLDFlags(version string) string {
ldflagsStr := "-s -w"
ldflagsStr += " -X github.com/minio/minio/cmd.Version=" + version
ldflagsStr += " -X github.com/minio/minio/cmd.ReleaseTag=" + releaseTag(version)
ldflagsStr += " -X github.com/minio/minio/cmd.CommitID=" + commitID()
ldflagsStr += " -X github.com/minio/minio/cmd.ShortCommitID=" + commitID()[:12]
ldflagsStr += " -X github.com/minio/minio/cmd.GOPATH=" + os.Getenv("GOPATH")
ldflagsStr += " -X github.com/minio/minio/cmd.GOROOT=" + os.Getenv("GOROOT")
return ldflagsStr
}
// genReleaseTag prints release tag to the console for easy git tagging.
func releaseTag(version string) string {
relPrefix := "DEVELOPMENT"
if prefix := os.Getenv("MINIO_RELEASE"); prefix != "" {
relPrefix = prefix
}
relSuffix := ""
if hotfix := os.Getenv("MINIO_HOTFIX"); hotfix != "" {
relSuffix = hotfix
}
relTag := strings.Replace(version, " ", "-", -1)
relTag = strings.Replace(relTag, ":", "-", -1)
relTag = strings.Replace(relTag, ",", "", -1)
relTag = relPrefix + "." + relTag
if relSuffix != "" {
relTag += "." + relSuffix
}
return relTag
}
// commitID returns the abbreviated commit-id hash of the last commit.
func commitID() string {
// git log --format="%H" -n1
var (
commit []byte
err error
)
cmdName := "git"
cmdArgs := []string{"log", "--format=%H", "-n1"}
if commit, err = exec.Command(cmdName, cmdArgs...).Output(); err != nil {
fmt.Fprintln(os.Stderr, "Error generating git commit-id: ", err)
os.Exit(1)
}
return strings.TrimSpace(string(commit))
}
func commitTime() time.Time {
// git log --format=%cD -n1
var (
commitUnix []byte
err error
)
cmdName := "git"
cmdArgs := []string{"log", "--format=%cI", "-n1"}
if commitUnix, err = exec.Command(cmdName, cmdArgs...).Output(); err != nil {
fmt.Fprintln(os.Stderr, "Error generating git commit-time: ", err)
os.Exit(1)
}
t, err := time.Parse(time.RFC3339, strings.TrimSpace(string(commitUnix)))
if err != nil {
fmt.Fprintln(os.Stderr, "Error generating git commit-time: ", err)
os.Exit(1)
}
return t.UTC()
}
func main() {
var version string
if len(os.Args) > 1 {
version = os.Args[1]
} else {
version = commitTime().Format(time.RFC3339)
}
fmt.Println(genLDFlags(version))
}