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 annotate=
   9 signed=
  10 force=
  11 message=
  12 username=
  13 list=
  14 while case "$#" in 0) break ;; esac
  15 do
  16     case "$1" in
  17     -a)
  18         annotate=1
  19         ;;
  20     -s)
  21         annotate=1
  22         signed=1
  23         ;;
  24     -f)
  25         force=1
  26         ;;
  27     -l)
  28         cd "$GIT_DIR/refs" &&
  29         case "$#" in
  30         1)
  31                 find tags -type f -print ;;
  32         *)
  33                 shift
  34                 find tags -type f -print | grep "$@" ;;
  35         esac
  36         exit $?
  37         ;;
  38     -m)
  39         annotate=1
  40         shift
  41         message="$1"
  42         ;;
  43     -u)
  44         annotate=1
  45         signed=1
  46         shift
  47         username="$1"
  48         ;;
  49     -d)
  50         shift
  51         tag_name="$1"
  52         rm "$GIT_DIR/refs/tags/$tag_name" && \
  53                 echo "Deleted tag $tag_name."
  54         exit $?
  55         ;;
  56     -*)
  57         usage
  58         ;;
  59     *)
  60         break
  61         ;;
  62     esac
  63     shift
  64 done
  65
  66 name="$1"
  67 [ "$name" ] || usage
  68 if [ -e "$GIT_DIR/refs/tags/$name" -a -z "$force" ]; then
  69     die "tag '$name' already exists"
  70 fi
  71 shift
  72 git-check-ref-format "tags/$name" ||
  73         die "we do not like '$name' as a tag name."
  74
  75 object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
  76 type=$(git-cat-file -t $object) || exit 1
  77 tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
  78 : ${username:=$(expr "$tagger" : '\(.*>\)')}
  79
  80 trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
  81
  82 if [ "$annotate" ]; then
  83     if [ -z "$message" ]; then
  84         ( echo "#"
  85           echo "# Write a tag message"
  86           echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
  87         ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR"/TAG_EDITMSG || exit
  88     else
  89         echo "$message" >"$GIT_DIR"/TAG_EDITMSG
  90     fi
  91
  92     grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
  93     git-stripspace >"$GIT_DIR"/TAG_FINALMSG
  94
  95     [ -s "$GIT_DIR"/TAG_FINALMSG ] || {
  96         echo >&2 "No tag message?"
  97         exit 1
  98     }
  99
 100     ( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
 101         "$object" "$type" "$name" "$tagger";
 102       cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
 103     rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
 104     if [ "$signed" ]; then
 105         gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
 106         cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
 107         die "failed to sign the tag with GPG."
 108     fi
 109     object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
 110 fi
 111
 112 leading=`expr "refs/tags/$name" : '\(.*\)/'` &&
 113 mkdir -p "$GIT_DIR/$leading" &&
 114 echo $object > "$GIT_DIR/refs/tags/$name"