ref: f8b8b091fc154844ea8c839c42b936008be1089c
dir: /releaser/releaser.go/
// Copyright 2017-present The Hugo Authors. All rights reserved.
//
// Licensed under the Apache License, Version 2.0 (the "License");
// you may not use this file except in compliance with the License.
// You may obtain a copy of the License at
// http://www.apache.org/licenses/LICENSE-2.0
//
// Unless required by applicable law or agreed to in writing, software
// distributed under the License is distributed on an "AS IS" BASIS,
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
// See the License for the specific language governing permissions and
// limitations under the License.
// Package releaser implements a set of utilities and a wrapper around Goreleaser
// to help automate the Hugo release process.
package releaser
import (
"fmt"
"io/ioutil"
"log"
"os"
"os/exec"
"path/filepath"
"regexp"
"strings"
"github.com/gohugoio/hugo/common/hugo"
"github.com/pkg/errors"
)
const commitPrefix = "releaser:"
type releaseNotesState int
const (
releaseNotesNone = iota
releaseNotesCreated
releaseNotesReady
)
// ReleaseHandler provides functionality to release a new version of Hugo.
type ReleaseHandler struct {
cliVersion string
skipPublish bool
// Just simulate, no actual changes.
try bool
git func(args ...string) (string, error)
}
func (r ReleaseHandler) calculateVersions() (hugo.Version, hugo.Version) {
newVersion := hugo.MustParseVersion(r.cliVersion)
finalVersion := newVersion.Next()
finalVersion.PatchLevel = 0
if newVersion.Suffix != "-test" {
newVersion.Suffix = ""
}
finalVersion.Suffix = "-DEV"
return newVersion, finalVersion
}
// New initialises a ReleaseHandler.
func New(version string, skipPublish, try bool) *ReleaseHandler {
// When triggered from CI release branch
version = strings.TrimPrefix(version, "release-")
version = strings.TrimPrefix(version, "v")
rh := &ReleaseHandler{cliVersion: version, skipPublish: skipPublish, try: try}
if try {
rh.git = func(args ...string) (string, error) {
fmt.Println("git", strings.Join(args, " "))
return "", nil
}
} else {
rh.git = git
}
return rh
}
// Run creates a new release.
func (r *ReleaseHandler) Run() error {
if os.Getenv("GITHUB_TOKEN") == "" {
return errors.New("GITHUB_TOKEN not set, create one here with the repo scope selected: https://github.com/settings/tokens/new")
}
newVersion, finalVersion := r.calculateVersions()
version := newVersion.String()
tag := "v" + version
isPatch := newVersion.PatchLevel > 0
mainVersion := newVersion
mainVersion.PatchLevel = 0
// Exit early if tag already exists
exists, err := tagExists(tag)
if err != nil {
return err
}
if exists {
return fmt.Errorf("tag %q already exists", tag)
}
var changeLogFromTag string
if newVersion.PatchLevel == 0 {
// There may have been patch releases between, so set the tag explicitly.
changeLogFromTag = "v" + newVersion.Prev().String()
exists, _ := tagExists(changeLogFromTag)
if !exists {
// fall back to one that exists.
changeLogFromTag = ""
}
}
var (
gitCommits gitInfos
gitCommitsDocs gitInfos
relNotesState releaseNotesState
)
relNotesState, err = r.releaseNotesState(version)
if err != nil {
return err
}
prepareRelaseNotes := isPatch || relNotesState == releaseNotesNone
shouldRelease := isPatch || relNotesState == releaseNotesReady
defer r.gitPush() // TODO(bep)
if prepareRelaseNotes || shouldRelease {
gitCommits, err = getGitInfos(changeLogFromTag, "hugo", "", !r.try)
if err != nil {
return err
}
// TODO(bep) explicit tag?
gitCommitsDocs, err = getGitInfos("", "hugoDocs", "../hugoDocs", !r.try)
if err != nil {
return err
}
}
if relNotesState == releaseNotesCreated {
fmt.Println("Release notes created, but not ready. Reneame to *-ready.md to continue ...")
return nil
}
if prepareRelaseNotes {
releaseNotesFile, err := r.writeReleaseNotesToTemp(version, isPatch, gitCommits, gitCommitsDocs)
if err != nil {
return err
}
if _, err := r.git("add", releaseNotesFile); err != nil {
return err
}
commitMsg := fmt.Sprintf("%s Add release notes for %s", commitPrefix, newVersion)
if !isPatch {
commitMsg += "\n\nRename to *-ready.md to continue."
}
commitMsg += "\n[ci skip]"
if _, err := r.git("commit", "-m", commitMsg); err != nil {
return err
}
}
if !shouldRelease {
fmt.Printf("Skip release ... ")
return nil
}
// For docs, for now we assume that:
// The /docs subtree is up to date and ready to go.
// The hugoDocs/dev and hugoDocs/master must be merged manually after release.
// TODO(bep) improve this when we see how it works.
if err := r.bumpVersions(newVersion); err != nil {
return err
}
if _, err := r.git("commit", "-a", "-m", fmt.Sprintf("%s Bump versions for release of %s\n\n[ci skip]", commitPrefix, newVersion)); err != nil {
return err
}
releaseNotesFile := getReleaseNotesDocsTempFilename(version, true)
title, description := version, version
if isPatch {
title = "Hugo " + version + ": A couple of Bug Fixes"
description = "This version fixes a couple of bugs introduced in " + mainVersion.String() + "."
}
// Write the release notes to the docs site as well.
docFile, err := r.writeReleaseNotesToDocs(title, description, releaseNotesFile)
if err != nil {
return err
}
if _, err := r.git("add", docFile); err != nil {
return err
}
if _, err := r.git("commit", "-m", fmt.Sprintf("%s Add release notes to /docs for release of %s\n\n[ci skip]", commitPrefix, newVersion)); err != nil {
return err
}
if _, err := r.git("tag", "-a", tag, "-m", fmt.Sprintf("%s %s [ci skip]", commitPrefix, newVersion)); err != nil {
return err
}
if !r.skipPublish {
if _, err := r.git("push", "origin", tag); err != nil {
return err
}
}
if err := r.release(releaseNotesFile); err != nil {
return err
}
if err := r.bumpVersions(finalVersion); err != nil {
return err
}
if !r.try {
// No longer needed.
if err := os.Remove(releaseNotesFile); err != nil {
return err
}
}
if _, err := r.git("commit", "-a", "-m", fmt.Sprintf("%s Prepare repository for %s\n\n[ci skip]", commitPrefix, finalVersion)); err != nil {
return err
}
return nil
}
func (r *ReleaseHandler) gitPush() {
if r.skipPublish {
return
}
if _, err := r.git("push", "origin", "HEAD"); err != nil {
log.Fatal("push failed:", err)
}
}
func (r *ReleaseHandler) release(releaseNotesFile string) error {
if r.try {
fmt.Println("Skip goreleaser...")
return nil
}
args := []string{"--rm-dist", "--release-notes", releaseNotesFile}
if r.skipPublish {
args = append(args, "--skip-publish")
}
cmd := exec.Command("goreleaser", args...)
cmd.Stdout = os.Stdout
cmd.Stderr = os.Stderr
err := cmd.Run()
if err != nil {
return errors.Wrap(err, "goreleaser failed")
}
return nil
}
func (r *ReleaseHandler) bumpVersions(ver hugo.Version) error {
toDev := ""
if ver.Suffix != "" {
toDev = ver.Suffix
}
if err := r.replaceInFile("common/hugo/version_current.go",
`Number:(\s{4,})(.*),`, fmt.Sprintf(`Number:${1}%.2f,`, ver.Number),
`PatchLevel:(\s*)(.*),`, fmt.Sprintf(`PatchLevel:${1}%d,`, ver.PatchLevel),
`Suffix:(\s{4,})".*",`, fmt.Sprintf(`Suffix:${1}"%s",`, toDev)); err != nil {
return err
}
snapcraftGrade := "stable"
if ver.Suffix != "" {
snapcraftGrade = "devel"
}
if err := r.replaceInFile("snap/snapcraft.yaml",
`version: "(.*)"`, fmt.Sprintf(`version: "%s"`, ver),
`grade: (.*) #`, fmt.Sprintf(`grade: %s #`, snapcraftGrade)); err != nil {
return err
}
var minVersion string
if ver.Suffix != "" {
// People use the DEV version in daily use, and we cannot create new themes
// with the next version before it is released.
minVersion = ver.Prev().String()
} else {
minVersion = ver.String()
}
if err := r.replaceInFile("commands/new.go",
`min_version = "(.*)"`, fmt.Sprintf(`min_version = "%s"`, minVersion)); err != nil {
return err
}
return nil
}
func (r *ReleaseHandler) replaceInFile(filename string, oldNew ...string) error {
fullFilename := hugoFilepath(filename)
fi, err := os.Stat(fullFilename)
if err != nil {
return err
}
if r.try {
fmt.Printf("Replace in %q: %q\n", filename, oldNew)
return nil
}
b, err := ioutil.ReadFile(fullFilename)
if err != nil {
return err
}
newContent := string(b)
for i := 0; i < len(oldNew); i += 2 {
re := regexp.MustCompile(oldNew[i])
newContent = re.ReplaceAllString(newContent, oldNew[i+1])
}
return ioutil.WriteFile(fullFilename, []byte(newContent), fi.Mode())
}
func hugoFilepath(filename string) string {
pwd, err := os.Getwd()
if err != nil {
log.Fatal(err)
}
return filepath.Join(pwd, filename)
}
func isCI() bool {
return os.Getenv("CI") != ""
}