73 lines
1.7 KiB
Go
73 lines
1.7 KiB
Go
// Copyright (C) 2014 The Syncthing Authors.
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//
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// This Source Code Form is subject to the terms of the Mozilla Public
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// License, v. 2.0. If a copy of the MPL was not distributed with this file,
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// You can obtain one at http://mozilla.org/MPL/2.0/.
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// +build ignore
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package main
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import (
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"bytes"
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"flag"
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"fmt"
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"log"
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"os/exec"
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"regexp"
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)
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var (
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subjectIssues = regexp.MustCompile(`^([^(]+)\s+\((?:fixes|ref) ([^)]+)\)(?:[^\w])?$`)
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issueNumbers = regexp.MustCompile(`(#\d+)`)
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)
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func main() {
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flag.Parse()
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// Display changelog since the version given on the command line, or
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// figure out the last release if there were no arguments.
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var prevRel string
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if flag.NArg() > 0 {
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prevRel = flag.Arg(0)
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} else {
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bs, err := runError("git", "describe", "--abbrev=0", "HEAD^")
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if err != nil {
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log.Fatal(err)
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}
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prevRel = string(bs)
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}
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// Get the git log with subject and author nickname
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bs, err := runError("git", "log", "--reverse", "--pretty=format:%s|%aN", prevRel+"..")
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if err != nil {
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log.Fatal(err)
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}
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// Split into lines
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for _, line := range bytes.Split(bs, []byte{'\n'}) {
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// Split into subject and author
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fields := bytes.Split(line, []byte{'|'})
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subj := fields[0]
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author := fields[1]
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// Check if subject contains a "(fixes ...)" or "(ref ...)""
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if m := subjectIssues.FindSubmatch(subj); len(m) > 0 {
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// Find all issue numbers
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issues := issueNumbers.FindAll(m[2], -1)
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// Format a changelog entry
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fmt.Printf("* %s (%s, @%s)\n", m[1], bytes.Join(issues, []byte(", ")), author)
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}
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}
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}
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func runError(cmd string, args ...string) ([]byte, error) {
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ecmd := exec.Command(cmd, args...)
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bs, err := ecmd.CombinedOutput()
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if err != nil {
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return nil, err
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}
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return bytes.TrimSpace(bs), nil
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}
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