| #!/bin/sh |
| # From Gerrit Code Review 3.6.1 c67916dbdc07555c44e32a68f92ffc484b9b34f0 |
| # |
| # 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. |
| |
| set -u |
| |
| # 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 |
| |
| # Do not create a change id for squash commits. |
| if head -n1 "$1" | grep -q '^squash! '; then |
| exit 0 |
| fi |
| |
| if git rev-parse --verify HEAD >/dev/null 2>&1; then |
| refhash="$(git rev-parse HEAD)" |
| else |
| refhash="$(git hash-object -t tree /dev/null)" |
| fi |
| |
| random=$({ git var GIT_COMMITTER_IDENT ; echo "$refhash" ; cat "$1"; } | git hash-object --stdin) |
| dest="$1.tmp.${random}" |
| |
| trap 'rm -f "$dest" "$dest-2"' 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 "${reviewurl}" ; then |
| token="Link" |
| value="${reviewurl%/}/id/I$random" |
| pattern=".*/id/I[0-9a-f]\{40\}$" |
| else |
| token="Change-Id" |
| value="I$random" |
| pattern=".*" |
| fi |
| |
| if git interpret-trailers --parse < "$1" | grep -q "^$token: $pattern$" ; then |
| exit 0 |
| fi |
| |
| # There must be a Signed-off-by trailer for the code below to work. Insert a |
| # sentinel at the end to make sure there is one. |
| # Avoid the --in-place option which only appeared in Git 2.8 |
| if ! git interpret-trailers \ |
| --trailer "Signed-off-by: SENTINEL" < "$1" > "$dest-2" ; then |
| echo "cannot insert Signed-off-by sentinel line in $1" |
| exit 1 |
| fi |
| |
| # Make sure the trailer appears before any Signed-off-by trailers by inserting |
| # it as if it was a Signed-off-by trailer and then use sed to remove the |
| # Signed-off-by prefix and the Signed-off-by sentinel line. |
| # Avoid the --in-place option which only appeared in Git 2.8 |
| # Avoid the --where option which only appeared in Git 2.15 |
| if ! git -c trailer.where=before interpret-trailers \ |
| --trailer "Signed-off-by: $token: $value" < "$dest-2" | |
| sed -re "s/^Signed-off-by: ($token: )/\1/" \ |
| -e "/^Signed-off-by: SENTINEL/d" > "$dest" ; then |
| echo "cannot insert $token line in $1" |
| exit 1 |
| fi |
| |
| if ! mv "${dest}" "$1" ; then |
| echo "cannot mv ${dest} to $1" |
| exit 1 |
| fi |