contrib/examples/git-tag.sh

   1 #!/bin/sh
   2 # Copyright (c) 2005 Linus Torvalds
   3
   4 USAGE='[-n [<num>]] -l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d | -v] [-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 verify=
  16 LINES=0
  17 while test $# != 0
  18 do
  19     case "$1" in
  20     -a)
  21         annotate=1
  22         shift
  23         ;;
  24     -s)
  25         annotate=1
  26         signed=1
  27         shift
  28         ;;
  29     -f)
  30         force=1
  31         shift
  32         ;;
  33     -n)
  34         case "$#,$2" in
  35         1,* | *,-*)
  36                 LINES=1         # no argument
  37                 ;;
  38         *)      shift
  39                 LINES=$(expr "$1" : '\([0-9]*\)')
  40                 [ -z "$LINES" ] && LINES=1 # 1 line is default when -n is used
  41                 ;;
  42         esac
  43         shift
  44         ;;
  45     -l)
  46         list=1
  47         shift
  48         case $# in
  49         0)      PATTERN=
  50                 ;;
  51         *)
  52                 PATTERN="$1"    # select tags by shell pattern, not re
  53                 shift
  54                 ;;
  55         esac
  56         git rev-parse --symbolic --tags | sort |
  57             while read TAG
  58             do
  59                 case "$TAG" in
  60                 *$PATTERN*) ;;
  61                 *)          continue ;;
  62                 esac
  63                 [ "$LINES" -le 0 ] && { echo "$TAG"; continue ;}
  64                 OBJTYPE=$(git cat-file -t "$TAG")
  65                 case $OBJTYPE in
  66                 tag)
  67                         ANNOTATION=$(git cat-file tag "$TAG" |
  68                                 sed -e '1,/^$/d' |
  69                                 sed -n -e "
  70                                         /^-----BEGIN PGP SIGNATURE-----\$/q
  71                                         2,\$s/^/    /
  72                                         p
  73                                         ${LINES}q
  74                                 ")
  75                         printf "%-15s %s\n" "$TAG" "$ANNOTATION"
  76                         ;;
  77                 *)      echo "$TAG"
  78                         ;;
  79                 esac
  80             done
  81         ;;
  82     -m)
  83         annotate=1
  84         shift
  85         message="$1"
  86         if test "$#" = "0"; then
  87             die "error: option -m needs an argument"
  88         else
  89             message="$1"
  90             message_given=1
  91             shift
  92         fi
  93         ;;
  94     -F)
  95         annotate=1
  96         shift
  97         if test "$#" = "0"; then
  98             die "error: option -F needs an argument"
  99         else
 100             message="$(cat "$1")"
 101             message_given=1
 102             shift
 103         fi
 104         ;;
 105     -u)
 106         annotate=1
 107         signed=1
 108         shift
 109         if test "$#" = "0"; then
 110             die "error: option -u needs an argument"
 111         else
 112             username="$1"
 113             shift
 114         fi
 115         ;;
 116     -d)
 117         shift
 118         had_error=0
 119         for tag
 120         do
 121                 cur=$(git show-ref --verify --hash -- "refs/tags/$tag") || {
 122                         echo >&2 "Seriously, what tag are you talking about?"
 123                         had_error=1
 124                         continue
 125                 }
 126                 git update-ref -m 'tag: delete' -d "refs/tags/$tag" "$cur" || {
 127                         had_error=1
 128                         continue
 129                 }
 130                 echo "Deleted tag $tag."
 131         done
 132         exit $had_error
 133         ;;
 134     -v)
 135         shift
 136         tag_name="$1"
 137         tag=$(git show-ref --verify --hash -- "refs/tags/$tag_name") ||
 138                 die "Seriously, what tag are you talking about?"
 139         git-verify-tag -v "$tag"
 140         exit $?
 141         ;;
 142     -*)
 143         usage
 144         ;;
 145     *)
 146         break
 147         ;;
 148     esac
 149 done
 150
 151 [ -n "$list" ] && exit 0
 152
 153 name="$1"
 154 [ "$name" ] || usage
 155 prev=0000000000000000000000000000000000000000
 156 if git show-ref --verify --quiet -- "refs/tags/$name"
 157 then
 158     test -n "$force" || die "tag '$name' already exists"
 159     prev=`git rev-parse "refs/tags/$name"`
 160 fi
 161 shift
 162 git check-ref-format "tags/$name" ||
 163         die "we do not like '$name' as a tag name."
 164
 165 object=$(git rev-parse --verify --default HEAD "$@") || exit 1
 166 type=$(git cat-file -t $object) || exit 1
 167 tagger=$(git var GIT_COMMITTER_IDENT) || exit 1
 168
 169 test -n "$username" ||
 170         username=$(git config user.signingkey) ||
 171         username=$(expr "z$tagger" : 'z\(.*>\)')
 172
 173 trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
 174
 175 if [ "$annotate" ]; then
 176     if [ -z "$message_given" ]; then
 177         ( echo "#"
 178           echo "# Write a tag message"
 179           echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
 180         git_editor "$GIT_DIR"/TAG_EDITMSG || exit
 181     else
 182         printf '%s\n' "$message" >"$GIT_DIR"/TAG_EDITMSG
 183     fi
 184
 185     grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
 186     git stripspace >"$GIT_DIR"/TAG_FINALMSG
 187
 188     [ -s "$GIT_DIR"/TAG_FINALMSG -o -n "$message_given" ] || {
 189         echo >&2 "No tag message?"
 190         exit 1
 191     }
 192
 193     ( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
 194         "$object" "$type" "$name" "$tagger";
 195       cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
 196     rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
 197     if [ "$signed" ]; then
 198         gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
 199         cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
 200         die "failed to sign the tag with GPG."
 201     fi
 202     object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
 203 fi
 204
 205 git update-ref "refs/tags/$name" "$object" "$prev"