| // Copyright 2014 The Go Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style |
| // license that can be found in the LICENSE file. |
| |
| package main |
| |
| import ( |
| "io/ioutil" |
| "os" |
| "path/filepath" |
| ) |
| |
| var hookFile = filepath.FromSlash(".git/hooks/commit-msg") |
| |
| func installHook() { |
| filename := filepath.Join(repoRoot(), hookFile) |
| _, err := os.Stat(filename) |
| if err == nil { |
| return |
| } |
| if !os.IsNotExist(err) { |
| dief("error checking for hook file: %v", err) |
| } |
| verbosef("Presubmit hook to add Change-Id to commit messages is missing.") |
| verbosef("Automatically creating it at %v.", filename) |
| hookContent := []byte(commitMsgHook) |
| if err := ioutil.WriteFile(filename, hookContent, 0700); err != nil { |
| dief("error writing hook file: %v", err) |
| } |
| } |
| |
| func repoRoot() string { |
| dir, err := os.Getwd() |
| if err != nil { |
| dief("could not get current directory: %v", err) |
| } |
| for { |
| if _, err := os.Stat(filepath.Join(dir, ".git")); err == nil { |
| return dir |
| } |
| if len(dir) == 1 && dir[0] == filepath.Separator { |
| dief("git root not found. Rerun from within the Git tree.") |
| } |
| dir = filepath.Dir(dir) |
| } |
| } |
| |
| var commitMsgHook = `#!/bin/sh |
| # From Gerrit Code Review 2.2.1 |
| # |
| # Part of Gerrit Code Review (http://code.google.com/p/gerrit/) |
| # |
| # Copyright (C) 2009 The Android Open Source Project |
| # |
| # 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. |
| # |
| |
| CHANGE_ID_AFTER="Bug|Issue" |
| MSG="$1" |
| |
| # Check for, and add if missing, a unique Change-Id |
| # |
| add_ChangeId() { |
| clean_message=` + "`" + `sed -e ' |
| /^diff --git a\/.*/{ |
| s/// |
| q |
| } |
| /^Signed-off-by:/d |
| /^#/d |
| ' "$MSG" | git stripspace` + "`" + ` |
| if test -z "$clean_message" |
| then |
| return |
| fi |
| |
| if grep -i '^Change-Id:' "$MSG" >/dev/null |
| then |
| return |
| fi |
| |
| id=` + "`" + `_gen_ChangeId` + "`" + ` |
| perl -e ' |
| $MSG = shift; |
| $id = shift; |
| $CHANGE_ID_AFTER = shift; |
| |
| undef $/; |
| open(I, $MSG); $_ = <I>; close I; |
| s|^diff --git a/.*||ms; |
| s|^#.*$||mg; |
| exit unless $_; |
| |
| @message = split /\n/; |
| $haveFooter = 0; |
| $startFooter = @message; |
| for($line = @message - 1; $line >= 0; $line--) { |
| $_ = $message[$line]; |
| |
| if (/^[a-zA-Z0-9-]+:/ && !m,^[a-z0-9-]+://,) { |
| $haveFooter++; |
| next; |
| } |
| next if /^[ []/; |
| $startFooter = $line if ($haveFooter && /^\r?$/); |
| last; |
| } |
| |
| @footer = @message[$startFooter+1..@message]; |
| @message = @message[0..$startFooter]; |
| push(@footer, "") unless @footer; |
| |
| for ($line = 0; $line < @footer; $line++) { |
| $_ = $footer[$line]; |
| next if /^($CHANGE_ID_AFTER):/i; |
| last; |
| } |
| splice(@footer, $line, 0, "Change-Id: I$id"); |
| |
| $_ = join("\n", @message, @footer); |
| open(O, ">$MSG"); print O; close O; |
| ' "$MSG" "$id" "$CHANGE_ID_AFTER" |
| } |
| _gen_ChangeIdInput() { |
| echo "tree ` + "`" + `git write-tree` + "`" + `" |
| if parent=` + "`" + `git rev-parse HEAD^0 2>/dev/null` + "`" + ` |
| then |
| echo "parent $parent" |
| fi |
| echo "author ` + "`" + `git var GIT_AUTHOR_IDENT` + "`" + `" |
| echo "committer ` + "`" + `git var GIT_COMMITTER_IDENT` + "`" + `" |
| echo |
| printf '%s' "$clean_message" |
| } |
| _gen_ChangeId() { |
| _gen_ChangeIdInput | |
| git hash-object -t commit --stdin |
| } |
| |
| |
| add_ChangeId |
| ` |