git-commit-vandalism/git-tag-script
Linus Torvalds d727782eaf Make "git tag" create both simple and signed tags
A simple tag is just a direct pointer to the object, while a signed tag
is a pointer to a "tag object" that has a pgp signature and points to
the object we tagged.

Use "git tag -s tagname" to create a signed tag.

The "-f" flag overwrites any previous tag of that name (useful if you
update a tag to point to a newer version for things like "latest" etc
tags that aren't necessarily static versions).
2005-07-23 15:21:22 -07:00

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#!/bin/sh
# Copyright (c) 2005 Linus Torvalds
. git-sh-setup-script || die "Not a git archive"
signed=
force=
while case "$#" in 0) break ;; esac
do
case "$1" in
-s)
signed=1
;;
-f)
force=1
;;
*)
break
;;
esac
shift
done
name="$1"
[ "$name" ] || die "I need a tag-name"
[ -e "$GIT_DIR/refs/tags/$name" ] &&
[ "$force" ] || die "tag '$name' already exists"
shift
object=$(git-rev-parse --verify --revs-only --default HEAD "$@") || exit 1
type=$(git-cat-file -t $object) || exit 1
tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
if [ "$signed" ]; then
( echo "#"
echo "# Write a tag message"
echo "#" ) > .editmsg
${VISUAL:-${EDITOR:-vi}} .editmsg || exit
grep -v '^#' < .editmsg | git-stripspace > .tagmsg
[ -s .tagmsg ] || exit
( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
rm -f .tmp-tag.asc .tagmsg
gpg -bsa .tmp-tag && cat .tmp-tag.asc >> .tmp-tag
object=$(git-mktag < .tmp-tag)
rm -f .tmp-tag .tmp-tag.sig
fi
mkdir -p "$GIT_DIR/refs/tags"
echo $object > "$GIT_DIR/refs/tags/$name"