git-tag-script

   1 #!/bin/sh
   2 # Copyright (c) 2005 Linus Torvalds
   3
   4 . git-sh-setup-script || die "Not a git archive"
   5
   6 usage () {
   7     echo >&2 "Usage: git-tag-script [-a | -s] [-f] tagname"
   8     exit 1
   9 }
  10
  11 annotate=
  12 signed=
  13 force=
  14 while case "$#" in 0) break ;; esac
  15 do
  16     case "$1" in
  17     -a)
  18         annotate=1
  19         ;;
  20     -s)
  21         annotate=1
  22         signed=1
  23         ;;
  24     -f)
  25         force=1
  26         ;;
  27     -*)
  28         usage
  29         ;;
  30     *)
  31         break
  32         ;;
  33     esac
  34     shift
  35 done
  36
  37 name="$1"
  38 [ "$name" ] || usage
  39 if [ -e "$GIT_DIR/refs/tags/$name" -a -z "$force" ]; then
  40     die "tag '$name' already exists"
  41 fi
  42 shift
  43
  44 object=$(git-rev-parse --verify --revs-only --default HEAD "$@") || exit 1
  45 type=$(git-cat-file -t $object) || exit 1
  46 tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
  47
  48 trap 'rm -f .tmp-tag* .tagmsg .editmsg' 0
  49
  50 if [ "$annotate" ]; then
  51     ( echo "#"
  52       echo "# Write a tag message"
  53       echo "#" ) > .editmsg
  54     ${VISUAL:-${EDITOR:-vi}} .editmsg || exit
  55
  56     grep -v '^#' < .editmsg | git-stripspace > .tagmsg
  57
  58     [ -s .tagmsg ] || exit
  59
  60     ( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
  61     rm -f .tmp-tag.asc .tagmsg
  62     if [ "$signed" ]; then
  63         me=$(expr "$tagger" : '\(.*>\)') &&
  64         gpg -bsa -u "$me" .tmp-tag &&
  65         cat .tmp-tag.asc >>.tmp-tag ||
  66         die "failed to sign the tag with GPG."
  67     fi
  68     object=$(git-mktag < .tmp-tag)
  69 fi
  70
  71 mkdir -p "$GIT_DIR/refs/tags"
  72 echo $object > "$GIT_DIR/refs/tags/$name"