git-tag.sh

   1 #!/bin/sh
   2 # Copyright (c) 2005 Linus Torvalds
   3
   4 USAGE='-l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d | -v] [-m <msg>] <tagname> [<head>]'
   5 SUBDIRECTORY_OK='Yes'
   6 . git-sh-setup
   7
   8 message_given=
   9 annotate=
  10 signed=
  11 force=
  12 message=
  13 username=
  14 list=
  15 verify=
  16 while case "$#" in 0) break ;; esac
  17 do
  18     case "$1" in
  19     -a)
  20         annotate=1
  21         ;;
  22     -s)
  23         annotate=1
  24         signed=1
  25         ;;
  26     -f)
  27         force=1
  28         ;;
  29     -l)
  30         case "$#" in
  31         1)
  32                 set x . ;;
  33         esac
  34         shift
  35         git rev-parse --symbolic --tags | sort | grep "$@"
  36         exit $?
  37         ;;
  38     -m)
  39         annotate=1
  40         shift
  41         message="$1"
  42         if test "$#" = "0"; then
  43             die "error: option -m needs an argument"
  44         else
  45             message_given=1
  46         fi
  47         ;;
  48     -F)
  49         annotate=1
  50         shift
  51         if test "$#" = "0"; then
  52             die "error: option -F needs an argument"
  53         else
  54             message="$(cat "$1")"
  55             message_given=1
  56         fi
  57         ;;
  58     -u)
  59         annotate=1
  60         signed=1
  61         shift
  62         username="$1"
  63         ;;
  64     -d)
  65         shift
  66         tag_name="$1"
  67         tag=$(git-show-ref --verify --hash -- "refs/tags/$tag_name") ||
  68                 die "Seriously, what tag are you talking about?"
  69         git-update-ref -m 'tag: delete' -d "refs/tags/$tag_name" "$tag" &&
  70                 echo "Deleted tag $tag_name."
  71         exit $?
  72         ;;
  73     -v)
  74         shift
  75         tag_name="$1"
  76         tag=$(git-show-ref --verify --hash -- "refs/tags/$tag_name") ||
  77                 die "Seriously, what tag are you talking about?"
  78         git-verify-tag -v "$tag"
  79         exit $?
  80         ;;
  81     -*)
  82         usage
  83         ;;
  84     *)
  85         break
  86         ;;
  87     esac
  88     shift
  89 done
  90
  91 name="$1"
  92 [ "$name" ] || usage
  93 prev=0000000000000000000000000000000000000000
  94 if git-show-ref --verify --quiet -- "refs/tags/$name"
  95 then
  96     test -n "$force" || die "tag '$name' already exists"
  97     prev=`git rev-parse "refs/tags/$name"`
  98 fi
  99 shift
 100 git-check-ref-format "tags/$name" ||
 101         die "we do not like '$name' as a tag name."
 102
 103 object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
 104 type=$(git-cat-file -t $object) || exit 1
 105 tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
 106 : ${username:=$(expr "z$tagger" : 'z\(.*>\)')}
 107
 108 trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
 109
 110 if [ "$annotate" ]; then
 111     if [ -z "$message_given" ]; then
 112         ( echo "#"
 113           echo "# Write a tag message"
 114           echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
 115         ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR"/TAG_EDITMSG || exit
 116     else
 117         echo "$message" >"$GIT_DIR"/TAG_EDITMSG
 118     fi
 119
 120     grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
 121     git-stripspace >"$GIT_DIR"/TAG_FINALMSG
 122
 123     [ -s "$GIT_DIR"/TAG_FINALMSG -o -n "$message_given" ] || {
 124         echo >&2 "No tag message?"
 125         exit 1
 126     }
 127
 128     ( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
 129         "$object" "$type" "$name" "$tagger";
 130       cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
 131     rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
 132     if [ "$signed" ]; then
 133         gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
 134         cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
 135         die "failed to sign the tag with GPG."
 136     fi
 137     object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
 138 fi
 139
 140 git update-ref "refs/tags/$name" "$object" "$prev"
 141