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git / git-verify-tag.sh

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#!/bin/sh
. git-sh-setup || die "Not a git archive"

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" > .tmp-vtag || exit 1
cat .tmp-vtag | sed '/-----BEGIN PGP/Q' | gpg --verify .tmp-vtag - || exit 1
rm -f .tmp-vtag