git/git-tag.sh

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#!/bin/sh
# Copyright (c) 2005 Linus Torvalds
USAGE='-l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d] [-m <msg>] <tagname> [<head>]'
SUBDIRECTORY_OK='Yes'
. git-sh-setup
annotate=
signed=
force=
message=
username=
list=
while case "$#" in 0) break ;; esac
do
case "$1" in
-a)
annotate=1
;;
-s)
annotate=1
signed=1
;;
-f)
force=1
;;
-l)
case "$#" in
1)
set x . ;;
esac
shift
git rev-parse --symbolic --tags | sort | grep "$@"
exit $?
;;
-m)
annotate=1
shift
message="$1"
;;
-u)
annotate=1
signed=1
shift
username="$1"
;;
-d)
shift
tag_name="$1"
rm "$GIT_DIR/refs/tags/$tag_name" && \
echo "Deleted tag $tag_name."
exit $?
;;
-*)
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
git-check-ref-format "tags/$name" ||
die "we do not like '$name' as a tag name."
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
: ${username:=$(expr "z$tagger" : 'z\(.*>\)')}
trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
if [ "$annotate" ]; then
if [ -z "$message" ]; then
( echo "#"
echo "# Write a tag message"
echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
${VISUAL:-${EDITOR:-vi}} "$GIT_DIR"/TAG_EDITMSG || exit
else
echo "$message" >"$GIT_DIR"/TAG_EDITMSG
fi
grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
git-stripspace >"$GIT_DIR"/TAG_FINALMSG
[ -s "$GIT_DIR"/TAG_FINALMSG ] || {
echo >&2 "No tag message?"
exit 1
}
( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
"$object" "$type" "$name" "$tagger";
cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
if [ "$signed" ]; then
gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
die "failed to sign the tag with GPG."
fi
object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
fi
leading=`expr "refs/tags/$name" : '\(.*\)/'` &&
mkdir -p "$GIT_DIR/$leading" &&
echo $object > "$GIT_DIR/refs/tags/$name"