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git-svn: support -C<num> passing to git-diff-tree
[git.git] / git-tag.sh
diff --git a/git-tag.sh b/git-tag.sh
index 11b0492..a0afa25 100755 (executable)
--- a/git-tag.sh
+++ b/git-tag.sh
@@ -1,17 +1,16 @@
 #!/bin/sh
 # Copyright (c) 2005 Linus Torvalds
 
-. git-sh-setup || die "Not a git archive"
-
-usage () {
-    echo >&2 "Usage: git-tag [-a | -s] [-f] [-m "tag message"] tagname [head]"
-    exit 1
-}
+USAGE='-l [<pattern>] | [-a | -s | -u <key-id>] [-f | -d] [-m <msg>] <tagname> [<head>]'
+SUBDIRECTORY_OK='Yes'
+. git-sh-setup
 
 annotate=
 signed=
 force=
 message=
+username=
+list=
 while case "$#" in 0) break ;; esac
 do
     case "$1" in
@@ -25,11 +24,33 @@ do
     -f)
        force=1
        ;;
+    -l)
+       case "$#" in
+       1)
+               set x . ;;
+       esac
+       shift
+       git rev-parse --symbolic --tags | sort | grep "$@"
+       exit $?
+       ;;
     -m)
        annotate=1
        shift
        message="$1"
        ;;
+    -u)
+       annotate=1
+       signed=1
+       shift
+       username="$1"
+       ;;
+    -d)
+       shift
+       tag_name="$1"
+       rm "$GIT_DIR/refs/tags/$tag_name" && \
+               echo "Deleted tag $tag_name."
+       exit $?
+       ;;
     -*)
         usage
        ;;
@@ -52,33 +73,40 @@ git-check-ref-format "tags/$name" ||
 object=$(git-rev-parse --verify --default HEAD "$@") || exit 1
 type=$(git-cat-file -t $object) || exit 1
 tagger=$(git-var GIT_COMMITTER_IDENT) || exit 1
+: ${username:=$(expr "z$tagger" : 'z\(.*>\)')}
 
-trap 'rm -f .tmp-tag* .tagmsg .editmsg' 0
+trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
 
 if [ "$annotate" ]; then
     if [ -z "$message" ]; then
         ( echo "#"
           echo "# Write a tag message"
-          echo "#" ) > .editmsg
-        ${VISUAL:-${EDITOR:-vi}} .editmsg || exit
+          echo "#" ) > "$GIT_DIR"/TAG_EDITMSG
+        ${VISUAL:-${EDITOR:-vi}} "$GIT_DIR"/TAG_EDITMSG || exit
     else
-        echo "$message" > .editmsg
+        echo "$message" >"$GIT_DIR"/TAG_EDITMSG
     fi
 
-    grep -v '^#' < .editmsg | git-stripspace > .tagmsg
+    grep -v '^#' <"$GIT_DIR"/TAG_EDITMSG |
+    git-stripspace >"$GIT_DIR"/TAG_FINALMSG
 
-    [ -s .tagmsg ] || exit
+    [ -s "$GIT_DIR"/TAG_FINALMSG ] || {
+       echo >&2 "No tag message?"
+       exit 1
+    }
 
-    ( echo -e "object $object\ntype $type\ntag $name\ntagger $tagger\n"; cat .tagmsg ) > .tmp-tag
-    rm -f .tmp-tag.asc .tagmsg
+    ( printf 'object %s\ntype %s\ntag %s\ntagger %s\n\n' \
+       "$object" "$type" "$name" "$tagger";
+      cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
+    rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
     if [ "$signed" ]; then
-       me=$(expr "$tagger" : '\(.*>\)') &&
-       gpg -bsa -u "$me" .tmp-tag &&
-       cat .tmp-tag.asc >>.tmp-tag ||
+       gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
+       cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
        die "failed to sign the tag with GPG."
     fi
-    object=$(git-mktag < .tmp-tag)
+    object=$(git-mktag < "$GIT_DIR"/TAG_TMP)
 fi
 
-mkdir -p "$GIT_DIR/refs/tags"
+leading=`expr "refs/tags/$name" : '\(.*\)/'` &&
+mkdir -p "$GIT_DIR/$leading" &&
 echo $object > "$GIT_DIR/refs/tags/$name"
The core git plumbing