git-tag.sh

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