Created
July 15, 2021 12:12
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Gerrit 3.4 Commit MSG Hook
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#!/bin/sh | |
# From Gerrit Code Review 3.4.0 | |
# | |
# Part of Gerrit Code Review (https://www.gerritcodereview.com/) | |
# | |
# 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. | |
# avoid [[ which is not POSIX sh. | |
if test "$#" != 1 ; then | |
echo "$0 requires an argument." | |
exit 1 | |
fi | |
if test ! -f "$1" ; then | |
echo "file does not exist: $1" | |
exit 1 | |
fi | |
# Do not create a change id if requested | |
if test "false" = "`git config --bool --get gerrit.createChangeId`" ; then | |
exit 0 | |
fi | |
# $RANDOM will be undefined if not using bash, so don't use set -u | |
random=$( (whoami ; hostname ; date; cat $1 ; echo $RANDOM) | git hash-object --stdin) | |
dest="$1.tmp.${random}" | |
trap 'rm -f "${dest}"' EXIT | |
if ! git stripspace --strip-comments < "$1" > "${dest}" ; then | |
echo "cannot strip comments from $1" | |
exit 1 | |
fi | |
if test ! -s "${dest}" ; then | |
echo "file is empty: $1" | |
exit 1 | |
fi | |
reviewurl="$(git config --get gerrit.reviewUrl)" | |
if test -n "${reviewurl}" ; then | |
if ! git interpret-trailers --parse < "$1" | grep -q '^Link:.*/id/I[0-9a-f]\{40\}$' ; then | |
if ! git interpret-trailers \ | |
--trailer "Link: ${reviewurl%/}/id/I${random}" < "$1" > "${dest}" ; then | |
echo "cannot insert link footer in $1" | |
exit 1 | |
fi | |
fi | |
else | |
# Avoid the --in-place option which only appeared in Git 2.8 | |
# Avoid the --if-exists option which only appeared in Git 2.15 | |
if ! git -c trailer.ifexists=doNothing interpret-trailers \ | |
--trailer "Change-Id: I${random}" < "$1" > "${dest}" ; then | |
echo "cannot insert change-id line in $1" | |
exit 1 | |
fi | |
fi | |
if ! mv "${dest}" "$1" ; then | |
echo "cannot mv ${dest} to $1" | |
exit 1 | |
fi |
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