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#!/bin/sh
# Copyright (c) 2005 Linus Torvalds
. git-sh-setup || die "Not a git archive"
usage () {
echo >&2 "Usage: git-tag [-a | -s] [-f] [-m "tag message"] tagname"
exit 1
}
annotate=
signed=
force=
message=
while case "$#" in 0) break ;; esac
do
case "$1" in
-a)
annotate=1
;;
-s)
annotate=1
signed=1
;;
-f)
force=1
;;
-m)
annotate=1
shift
message="$1"
;;
-*)
usage
;;
*)
break
;;
esac
shift
done
name="$1"
[ "$name" ] || usage
if [ -e "$GIT_DIR/refs/tags/$name" -a -z "$force" ]; then
die "tag '$name' already exists"
fi
shift
object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
type=$(git-cat-file -t $object) || exit 1
tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
trap 'rm -f .tmp-tag* .tagmsg .editmsg' 0
if [ "$annotate" ]; then
if [ -z "$message" ]; then
( echo "#"
echo "# Write a tag message"
echo "#" ) > .editmsg
${VISUAL:-${EDITOR:-vi}} .editmsg || exit
else
echo "$message" > .editmsg
fi
grep -v '^#' < .editmsg | git-stripspace > .tagmsg
[ -s .tagmsg ] || exit
( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
rm -f .tmp-tag.asc .tagmsg
if [ "$signed" ]; then
me=$(expr "$tagger" : '\(.*>\)') &&
gpg -bsa -u "$me" .tmp-tag &&
cat .tmp-tag.asc >>.tmp-tag ||
die "failed to sign the tag with GPG."
fi
object=$(git-mktag < .tmp-tag)
fi
mkdir -p "$GIT_DIR/refs/tags"
echo $object > "$GIT_DIR/refs/tags/$name"
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