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