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build time constants
This commit is contained in:
Anand Babu (AB) Periasamy
109
buildscripts/gen-constants.go
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109
buildscripts/gen-constants.go
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@@ -0,0 +1,109 @@
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// +build ignore
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/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"net/http"
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"os"
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"os/exec"
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"strings"
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"text/template"
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"time"
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)
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var constantsTemplate = `// -------- DO NOT EDIT --------
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// This file is autogenerated by buildscripts/gen-constants.go during the release process.
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package main
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const (
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minioVersion = {{if .Version}}"{{.Version}}"{{else}}""{{end}}
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minioReleaseTag = {{if .ReleaseTag}}"{{.ReleaseTag}}"{{else}}""{{end}}
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minioCommitID = {{if .CommitID}}"{{.CommitID}}"{{else}}""{{end}}
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)
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var (
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minioShortCommitID = minioCommitID[:12]
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)
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`
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// genConstants generates ‘build-constants.go’.
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func genConstants(version string) {
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t := template.Must(template.New("constants").Parse(constantsTemplate))
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constantsFile, e := os.OpenFile("build-constants.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
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if e != nil {
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fmt.Printf("gen-constants: Unable to create ‘build-constants.go’. Error: %s.\n", e)
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os.Exit(1)
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}
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defer constantsFile.Close()
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e = t.Execute(constantsFile, struct {
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Version string
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ReleaseTag string
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CommitID string
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}{version, releaseTag(version), commitID()})
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if e != nil {
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fmt.Printf("gen-constants: Unable to generate ‘build-constants.go’. Error: %s.\n", e)
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os.Exit(1)
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}
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}
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// genReleaseTag prints release tag to the console for easy git tagging.
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func releaseTag(version string) string {
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relPrefix := "UNOFFICIAL"
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if prefix := os.Getenv("MINIO_RELEASE"); prefix != "" {
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relPrefix = prefix
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}
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relTag := strings.Replace(version, " ", "-", -1)
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relTag = strings.Replace(relTag, ":", "-", -1)
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relTag = strings.Replace(relTag, ",", "", -1)
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return relPrefix + "." + relTag
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}
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// commitID returns the abbreviated commit-id hash of the last commit.
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func commitID() string {
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// git log --format="%h" -n1
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var (
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commit []byte
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e error
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)
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cmdName := "git"
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cmdArgs := []string{"log", "--format=%H", "-n1"}
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if commit, e = exec.Command(cmdName, cmdArgs...).Output(); e != nil {
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fmt.Fprintln(os.Stderr, "Error generating git commit-id: ", e)
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os.Exit(1)
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}
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return strings.TrimSpace(string(commit))
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}
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func main() {
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// Version is in HTTP TimeFormat.
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version := time.Now().UTC().Format(http.TimeFormat)
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// generate ‘build-constants.go’ file.
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genConstants(version)
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fmt.Println("Version: \"" + version + "\"")
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fmt.Println("Release-Tag: " + releaseTag(version))
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fmt.Println("Commit-ID: " + commitID())
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}
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@@ -1,77 +0,0 @@
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// +build ignore
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/*
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* Minio Cloud Storage, (C) 2015 Minio, Inc.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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package main
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import (
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"fmt"
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"net/http"
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"os"
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"strings"
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"text/template"
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"time"
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)
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var versionTemplate = `// -------- DO NOT EDIT --------
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// This file is autogenerated by genversion.go during the release process.
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package main
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const minioVersion = {{if .Version}}"{{.Version}}"{{else}}""{{end}}
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const minioReleaseTag = {{if .ReleaseTag}}"{{.ReleaseTag}}"{{else}}""{{end}}
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`
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// genVersion generates ‘version.go’.
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func genVersion(version string) {
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t := template.Must(template.New("version").Parse(versionTemplate))
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versionFile, err := os.OpenFile("version.go", os.O_WRONLY|os.O_CREATE|os.O_TRUNC, 0600)
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if err != nil {
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fmt.Printf("genversion: Unable to generate ‘version.go’. Error: %s.\n", err)
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os.Exit(1)
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}
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defer versionFile.Close()
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err = t.Execute(versionFile, struct {
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Version string
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ReleaseTag string
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}{version, genReleaseTag(version)})
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if err != nil {
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fmt.Printf("genversion: Unable to generate ‘version.go’. Error: %s.\n", err)
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os.Exit(1)
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}
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}
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// genReleaseTag prints release tag to the console for easy git tagging.
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func genReleaseTag(version string) string {
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relTag := strings.Replace(version, " ", "-", -1)
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relTag = strings.Replace(relTag, ":", "-", -1)
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relTag = strings.Replace(relTag, ",", "", -1)
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return "RELEASE." + relTag
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}
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func main() {
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// Version is in HTTP TimeFormat.
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version := time.Now().UTC().Format(http.TimeFormat)
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// generate ‘version.go’ file.
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genVersion(version)
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fmt.Println("Version: \"" + version + "\"")
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fmt.Println("Release-Tag: " + genReleaseTag(version))
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}
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