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             exit 2
  44         else
  45             message_given=1
  46         fi
  47         ;;
  48     -u)
  49         annotate=1
  50         signed=1
  51         shift
  52         username="$1"
  53         ;;
  54     -d)
  55         shift
  56         tag_name="$1"
  57         tag=$(git-show-ref --verify --hash -- "refs/tags/$tag_name") ||
  58                 die "Seriously, what tag are you talking about?"
  59         git-update-ref -m 'tag: delete' -d "refs/tags/$tag_name" "$tag" &&
  60                 echo "Deleted tag $tag_name."
  61         exit $?
  62         ;;
  63     -*)
  64         usage
  65         ;;
  66     *)
  67         break
  68         ;;
  69     esac
  70     shift
  71 done
  72
  73 name="$1"
  74 [ "$name" ] || usage
  75 prev=0000000000000000000000000000000000000000
  76 if git-show-ref --verify --quiet -- "refs/tags/$name"
  77 then
  78     test -n "$force" || die "tag '$name' already exists"
  79     prev=`git rev-parse "refs/tags/$name"`
  80 fi
  81 shift
  82 git-check-ref-format "tags/$name" ||
  83         die "we do not like '$name' as a tag name."
  84
  85 object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
  86 type=$(git-cat-file -t $object) || exit 1
  87 tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
  88 : ${username:=$(expr "z$tagger" : 'z\(.*>\)')}
  89
  90 trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
  91
  92 if [ "$annotate" ]; then
  93     if [ -z "$message_given" ]; then
  94         ( echo "#"
  95           echo "# Write a tag message"
  96           echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
  97         ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR"/TAG_EDITMSG || exit
  98     else
  99         echo "$message" >"$GIT_DIR"/TAG_EDITMSG
 100     fi
 101
 102     grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
 103     git-stripspace >"$GIT_DIR"/TAG_FINALMSG
 104
 105     [ -s "$GIT_DIR"/TAG_FINALMSG -o -n "$message_given" ] || {
 106         echo >&2 "No tag message?"
 107         exit 1
 108     }
 109
 110     ( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
 111         "$object" "$type" "$name" "$tagger";
 112       cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
 113     rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
 114     if [ "$signed" ]; then
 115         gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
 116         cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
 117         die "failed to sign the tag with GPG."
 118     fi
 119     object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
 120 fi
 121
 122 git update-ref "refs/tags/$name" "$object" "$prev"
 123