Remove empty ref directories that prevent creating a ref.

This patch also adds test cases from Linus and Junio.

Signed-off-by: Christian Couder <chriscool@tuxfamily.org>
Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/git-branch.sh b/git-branch.sh
index e0501ec..4f31903 100755 (executable)
--- a/git-branch.sh
+++ b/git-branch.sh
@@ -112,6 +112,16 @@ rev=$(git-rev-parse --verify "$head") || exit
 git-check-ref-format "heads/$branchname" ||
        die "we do not like '$branchname' as a branch name."
 
+if [ -d "$GIT_DIR/refs/heads/$branchname" ]
+then
+       for refdir in `cd "$GIT_DIR" && \
+               find "refs/heads/$branchname" -type d | sort -r`
+       do
+               rmdir "$GIT_DIR/$refdir" || \
+                   die "Could not delete '$refdir', there may still be a ref there."
+       done
+fi
+
 if [ -e "$GIT_DIR/refs/heads/$branchname" ]
 then
        if test '' = "$force"

diff --git a/t/t3200-branch.sh b/t/t3200-branch.sh
index 5b04efc..6907cbc 100755 (executable)
--- a/t/t3200-branch.sh
+++ b/t/t3200-branch.sh
@@ -61,4 +61,16 @@ test_expect_success \
         test -f .git/logs/refs/heads/g/h/i &&
         diff expect .git/logs/refs/heads/g/h/i'
 
+test_expect_success \
+    'git branch j/k should work after branch j has been deleted' \
+       'git-branch j &&
+        git-branch -d j &&
+        git-branch j/k'
+
+test_expect_success \
+    'git branch l should work after branch l/m has been deleted' \
+       'git-branch l/m &&
+        git-branch -d l/m &&
+        git-branch l'
+
 test_done