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#!/bin/sh
# Check the format of GNU Emacs change log entries.
# Copyright 2019-2021 Free Software Foundation, Inc.
# This file is part of GNU Emacs.
# GNU Emacs is free software: you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation, either version 3 of the License, or
# (at your option) any later version.
# GNU Emacs is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
# You should have received a copy of the GNU General Public License
# along with GNU Emacs. If not, see <https://www.gnu.org/licenses/>.
COMMIT_MSG_FILE=$1
COMMIT_SOURCE=$2
SHA1=$3
# Prefer gawk if available, as it handles NUL bytes properly.
if type gawk >/dev/null 2>&1; then
awk=gawk
else
awk=awk
fi
exec $awk '
# Catch the case when someone ran git-commit with -s option,
# which automatically adds Signed-off-by.
/^Signed-off-by: / {
print "'\''Signed-off-by:'\'' in commit message"
status = 1
}
END {
if (status != 0) {
print "Commit aborted; please see the file 'CONTRIBUTE'"
}
exit status
}
' <"$COMMIT_MSG_FILE"
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