1#!/bin/sh
2# Copyright (c) 2005 Linus Torvalds
3
4. git-sh-setup-script || die "Not a git archive"
5
6usage () {
7 echo >&2 "Usage: git-tag-script [-a | -s] [-f] tagname"
8 exit 1
9}
10
11annotate=
12signed=
13force=
14while case "$#" in 0) break ;; esac
15do
16 case "$1" in
17 -a)
18 annotate=1
19 ;;
20 -s)
21 annotate=1
22 signed=1
23 ;;
24 -f)
25 force=1
26 ;;
27 -*)
28 usage
29 ;;
30 *)
31 break
32 ;;
33 esac
34 shift
35done
36
37name="$1"
38[ "$name" ] || usage
39if [ -e "$GIT_DIR/refs/tags/$name" -a -z "$force" ]; then
40 die "tag '$name' already exists"
41fi
42shift
43
44object=$(git-rev-parse --verify --revs-only --default HEAD "$@") || exit 1
45type=$(git-cat-file -t $object) || exit 1
46tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
47
48trap 'rm -f .tmp-tag* .tagmsg .editmsg' 0
49
50if [ "$annotate" ]; then
51 ( echo "#"
52 echo "# Write a tag message"
53 echo "#" ) > .editmsg
54 ${VISUAL:-${EDITOR:-vi}} .editmsg || exit
55
56 grep -v '^#' < .editmsg | git-stripspace > .tagmsg
57
58 [ -s .tagmsg ] || exit
59
60 ( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
61 rm -f .tmp-tag.asc .tagmsg
62 if [ "$signed" ]; then
63 me=$(expr "$tagger" : '\(.*>\)') &&
64 gpg -bsa -u "$me" .tmp-tag &&
65 cat .tmp-tag.asc >>.tmp-tag ||
66 die "failed to sign the tag with GPG."
67 fi
68 object=$(git-mktag < .tmp-tag)
69fi
70
71mkdir -p "$GIT_DIR/refs/tags"
72echo $object > "$GIT_DIR/refs/tags/$name"