git-blame: somewhat better commenting.

diff --git a/git-tag.sh b/git-tag.sh
index 94499c9b367800249e74a0e891dd14eb968f8857..988bf4c6a6b52af4d4a1b792090c317b9d799755 100755 (executable)
--- a/git-tag.sh
+++ b/git-tag.sh
@@ -112,7 +112,9 @@ 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\(.*>\)')}
+
+keyid=$(git-repo-config user.signingkey) ||
+       keyid=$(expr "z$tagger" : 'z\(.*>\)')
 
 trap 'rm -f "$GIT_DIR"/TAG_TMP* "$GIT_DIR"/TAG_FINALMSG "$GIT_DIR"/TAG_EDITMSG' 0
 
@@ -139,7 +141,7 @@ if [ "$annotate" ]; then
       cat "$GIT_DIR"/TAG_FINALMSG ) >"$GIT_DIR"/TAG_TMP
     rm -f "$GIT_DIR"/TAG_TMP.asc "$GIT_DIR"/TAG_FINALMSG
     if [ "$signed" ]; then
-       gpg -bsa -u "$username" "$GIT_DIR"/TAG_TMP &&
+       gpg -bsa -u "$keyid" "$GIT_DIR"/TAG_TMP &&
        cat "$GIT_DIR"/TAG_TMP.asc >>"$GIT_DIR"/TAG_TMP ||
        die "failed to sign the tag with GPG."
     fi