[PATCH 1/2] Fix git-verify-tag for local tags

[Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>]

From: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>

It currently exits printing "git-cat-file SHA1: bad file", while instead we must
just abort the verification for local tags (i.e. referring to commit objects).

Signed-off-by: Paolo 'Blaisorblade' Giarrusso <blaisorblade@yahoo.it>
---

 git-verify-tag.sh |    4 ++++
 1 files changed, 4 insertions(+), 0 deletions(-)

diff --git a/git-verify-tag.sh b/git-verify-tag.sh
--- a/git-verify-tag.sh
+++ b/git-verify-tag.sh
@@ -3,6 +3,10 @@
 
 tag=$(git-rev-parse $1) || exit 1
 
+type=$(git-cat-file -t $tag) || exit 1
+[ "$type" = "commit" ] && die "Light tag - verification impossible"
+[ "$type" = "tag" ] || die "Bad tag - SHA1 doesn't refer to a tag object nor to a commit one."
+
 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