ref: 4fc918e02cfc7f260d6312248ff9d33e95b27943
dir: /releaser/git.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
import (
"fmt"
"os/exec"
"regexp"
"sort"
"strconv"
"strings"
)
var issueRe = regexp.MustCompile(`(?i)[Updates?|Closes?|Fix.*|See] #(\d+)`)
const (
notesChanges = "notesChanges"
templateChanges = "templateChanges"
coreChanges = "coreChanges"
outChanges = "outChanges"
otherChanges = "otherChanges"
)
type changeLog struct {
Version string
Enhancements map[string]gitInfos
Fixes map[string]gitInfos
Notes gitInfos
All gitInfos
Docs gitInfos
// Overall stats
Repo *gitHubRepo
ContributorCount int
ThemeCount int
}
func newChangeLog(infos, docInfos gitInfos) *changeLog {
return &changeLog{
Enhancements: make(map[string]gitInfos),
Fixes: make(map[string]gitInfos),
All: infos,
Docs: docInfos,
}
}
func (l *changeLog) addGitInfo(isFix bool, info gitInfo, category string) {
var (
infos gitInfos
found bool
segment map[string]gitInfos
)
if category == notesChanges {
l.Notes = append(l.Notes, info)
return
} else if isFix {
segment = l.Fixes
} else {
segment = l.Enhancements
}
infos, found = segment[category]
if !found {
infos = gitInfos{}
}
infos = append(infos, info)
segment[category] = infos
}
func gitInfosToChangeLog(infos, docInfos gitInfos) *changeLog {
log := newChangeLog(infos, docInfos)
for _, info := range infos {
los := strings.ToLower(info.Subject)
isFix := strings.Contains(los, "fix")
var category = otherChanges
// TODO(bep) improve
if regexp.MustCompile("(?i)deprecate").MatchString(los) {
category = notesChanges
} else if regexp.MustCompile("(?i)tpl|tplimpl:|layout").MatchString(los) {
category = templateChanges
} else if regexp.MustCompile("(?i)hugolib:").MatchString(los) {
category = coreChanges
} else if regexp.MustCompile("(?i)out(put)?:|media:|Output|Media").MatchString(los) {
category = outChanges
}
// Trim package prefix.
colonIdx := strings.Index(info.Subject, ":")
if colonIdx != -1 && colonIdx < (len(info.Subject)/2) {
info.Subject = info.Subject[colonIdx+1:]
}
info.Subject = strings.TrimSpace(info.Subject)
log.addGitInfo(isFix, info, category)
}
return log
}
type gitInfo struct {
Hash string
Author string
Subject string
Body string
GitHubCommit *gitHubCommit
}
func (g gitInfo) Issues() []int {
return extractIssues(g.Body)
}
func (g gitInfo) AuthorID() string {
if g.GitHubCommit != nil {
return g.GitHubCommit.Author.Login
}
return g.Author
}
func extractIssues(body string) []int {
var i []int
m := issueRe.FindAllStringSubmatch(body, -1)
for _, mm := range m {
issueID, err := strconv.Atoi(mm[1])
if err != nil {
continue
}
i = append(i, issueID)
}
return i
}
type gitInfos []gitInfo
func git(args ...string) (string, error) {
cmd := exec.Command("git", args...)
out, err := cmd.CombinedOutput()
if err != nil {
return "", fmt.Errorf("git failed: %q: %q (%q)", err, out, args)
}
return string(out), nil
}
func getGitInfos(tag, repo, repoPath string, remote bool) (gitInfos, error) {
return getGitInfosBefore("HEAD", tag, repo, repoPath, remote)
}
type countribCount struct {
Author string
GitHubAuthor gitHubAuthor
Count int
}
func (c countribCount) AuthorLink() string {
if c.GitHubAuthor.HTMLURL != "" {
return fmt.Sprintf("[@%s](%s)", c.GitHubAuthor.Login, c.GitHubAuthor.HTMLURL)
}
if !strings.Contains(c.Author, "@") {
return c.Author
}
return c.Author[:strings.Index(c.Author, "@")]
}
type contribCounts []countribCount
func (c contribCounts) Less(i, j int) bool { return c[i].Count > c[j].Count }
func (c contribCounts) Len() int { return len(c) }
func (c contribCounts) Swap(i, j int) { c[i], c[j] = c[j], c[i] }
func (g gitInfos) ContribCountPerAuthor() contribCounts {
var c contribCounts
counters := make(map[string]countribCount)
for _, gi := range g {
authorID := gi.AuthorID()
if count, ok := counters[authorID]; ok {
count.Count = count.Count + 1
counters[authorID] = count
} else {
var ghA gitHubAuthor
if gi.GitHubCommit != nil {
ghA = gi.GitHubCommit.Author
}
authorCount := countribCount{Count: 1, Author: gi.Author, GitHubAuthor: ghA}
counters[authorID] = authorCount
}
}
for _, v := range counters {
c = append(c, v)
}
sort.Sort(c)
return c
}
func getGitInfosBefore(ref, tag, repo, repoPath string, remote bool) (gitInfos, error) {
client := newGitHubAPI(repo)
var g gitInfos
log, err := gitLogBefore(ref, tag, repoPath)
if err != nil {
return g, err
}
log = strings.Trim(log, "\n\x1e'")
entries := strings.Split(log, "\x1e")
for _, entry := range entries {
items := strings.Split(entry, "\x1f")
gi := gitInfo{}
if len(items) > 0 {
gi.Hash = items[0]
}
if len(items) > 1 {
gi.Author = items[1]
}
if len(items) > 2 {
gi.Subject = items[2]
}
if len(items) > 3 {
gi.Body = items[3]
}
if remote && gi.Hash != "" {
gc, err := client.fetchCommit(gi.Hash)
if err == nil {
gi.GitHubCommit = &gc
}
}
g = append(g, gi)
}
return g, nil
}
// Ignore autogenerated commits etc. in change log. This is a regexp.
const ignoredCommits = "releaser?:|snapcraft:|Merge commit|Squashed"
func gitLogBefore(ref, tag, repoPath string) (string, error) {
var prevTag string
var err error
if tag != "" {
prevTag = tag
} else {
prevTag, err = gitVersionTagBefore(ref)
if err != nil {
return "", err
}
}
defaultArgs := []string{"log", "-E", fmt.Sprintf("--grep=%s", ignoredCommits), "--invert-grep", "--pretty=format:%x1e%h%x1f%aE%x1f%s%x1f%b", "--abbrev-commit", prevTag + ".." + ref}
var args []string
if repoPath != "" {
args = append([]string{"-C", repoPath}, defaultArgs...)
} else {
args = defaultArgs
}
log, err := git(args...)
if err != nil {
return ",", err
}
return log, err
}
func gitVersionTagBefore(ref string) (string, error) {
return gitShort("describe", "--tags", "--abbrev=0", "--always", "--match", "v[0-9]*", ref+"^")
}
func gitShort(args ...string) (output string, err error) {
output, err = git(args...)
return strings.Replace(strings.Split(output, "\n")[0], "'", "", -1), err
}
func tagExists(tag string) (bool, error) {
out, err := git("tag", "-l", tag)
if err != nil {
return false, err
}
if strings.Contains(out, tag) {
return true, nil
}
return false, nil
}