1#!/bin/sh
2
3USAGE='<tag>'
4SUBDIRECTORY_OK='Yes'
5. git-sh-setup
6
7verbose=
8while case $# in 0) break;; esac
9do
10 case "$1" in
11 -v|--v|--ve|--ver|--verb|--verbo|--verbos|--verbose)
12 verbose=t ;;
13 *)
14 break ;;
15 esac
16 shift
17done
18
19if [ "$#" != "1" ]
20then
21 usage
22fi
23
24type="$(git cat-file -t "$1" 2>/dev/null)" ||
25 die "$1: no such object."
26
27test "$type" = tag ||
28 die "$1: cannot verify a non-tag object of type $type."
29
30case "$verbose" in
31t)
32 git cat-file -p "$1" |
33 sed -n -e '/^-----BEGIN PGP SIGNATURE-----/q' -e p
34 ;;
35esac
36
37trap 'rm -f "$GIT_DIR/.tmp-vtag"' 0
38
39git cat-file tag "$1" >"$GIT_DIR/.tmp-vtag" || exit 1
40sed -n -e '
41 /^-----BEGIN PGP SIGNATURE-----$/q
42 p
43' <"$GIT_DIR/.tmp-vtag" |
44gpg --verify "$GIT_DIR/.tmp-vtag" - || exit 1
45rm -f "$GIT_DIR/.tmp-vtag"