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Automatically install Gerrit Code Review's commit-msg hook

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Most users of repo are also using Gerrit Code Review, and will want
the commit-msg hook to be automatically installed into their local
projects so that Change-Ids are assigned when commits are created,
not when they are first uploaded.

(cherry picked from commit a949fa5d20
 but squashed with latest hook script from version 2.1.2)

Change-Id: Ie68b2d60ac85d8c2285d2e1e6a4536eb76695547
Signed-off-by: Shawn O. Pearce <sop@google.com>
This commit is contained in:
Shawn O. Pearce 2009-08-22 18:17:46 -07:00
parent 4c50deea28
commit 9452e4ec09
2 changed files with 119 additions and 4 deletions
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101
hooks/commit-msg Executable file
View File

@ -0,0 +1,101 @@
#!/bin/sh
# From Gerrit Code Review 2.1.2-rc2-33-g7e30c72
#
# 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];
($haveFooter++, next) if /^[a-zA-Z0-9-]+:/;
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

22
project.py
View File

@ -1055,13 +1055,27 @@ class Project(object):
if not os.path.exists(hooks):
os.makedirs(hooks)
for stock_hook in repo_hooks():
dst = os.path.join(hooks, os.path.basename(stock_hook))
name = os.path.basename(stock_hook)
if name in ('commit-msg') and not self.remote.review:
# Don't install a Gerrit Code Review hook if this
# project does not appear to use it for reviews.
#
continue
dst = os.path.join(hooks, name)
if os.path.islink(dst):
continue
if os.path.exists(dst):
if filecmp.cmp(stock_hook, dst, shallow=False):
os.remove(dst)
else:
_error("%s: Not replacing %s hook", self.relpath, name)
continue
try:
os.symlink(relpath(stock_hook, dst), dst)
except OSError, e:
if e.errno == errno.EEXIST:
pass
elif e.errno == errno.EPERM:
if e.errno == errno.EPERM:
raise GitError('filesystem must support symlinks')
else:
raise