X-Git-Url: https://git.octo.it/?a=blobdiff_plain;f=git-verify-tag.sh;h=726b1e706ba247ee5b17e1312d7195119a690da2;hb=ee34518d629331dadd58b1a75294369d679eda8b;hp=156c75bb3e4fb0c46ed9bff67b3fb48d795b41fb;hpb=c1067050ce58b5b39f528fe634732da858664603;p=git.git

diff --git a/git-verify-tag.sh b/git-verify-tag.sh
index 156c75bb..726b1e70 100755
--- a/git-verify-tag.sh
+++ b/git-verify-tag.sh
@@ -1,8 +1,23 @@
 #!/bin/sh
-. git-sh-setup || die "Not a git archive"
 
-tag=$(git-rev-parse $1) || exit 1
+USAGE='<tag>'
+SUBDIRECTORY_OK='Yes'
+. git-sh-setup
+
+if [ "$#" != "1" ]
+then
+  usage
+fi
+
+type="$(git-cat-file -t "$1" 2>/dev/null)" ||
+	die "$1: no such object."
+
+test "$type" = tag ||
+	die "$1: cannot verify a non-tag object of type $type."
+
+git-cat-file tag "$1" >"$GIT_DIR/.tmp-vtag" || exit 1
+cat "$GIT_DIR/.tmp-vtag" |
+sed '/-----BEGIN PGP/Q' |
+gpg --verify "$GIT_DIR/.tmp-vtag" - || exit 1
+rm -f "$GIT_DIR/.tmp-vtag"
 
-git-cat-file tag $tag > .tmp-vtag || exit 1
-cat .tmp-vtag | sed '/-----BEGIN PGP/Q' | gpg --verify .tmp-vtag - || exit 1
-rm -f .tmp-vtag