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