ref-log: fix D/F conflict coming from deleted refs.

After deleting a branch l/k, you should be able to create a
branch l.  Earlier we added remove_empty_directories() on the
ref creation side to remove leftover .git/refs/l directory but
we also need a matching code to remove .git/logs/refs/l
directory.

Signed-off-by: Junio C Hamano <junkio@cox.net>

diff --git a/refs.c b/refs.c
index 3d100df85c4ca9f2f54c22a5c771014a8ba10f38..ed2e3b16a7c843d75da361011b36c74d51f629b8 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -733,8 +733,18 @@ static int log_ref_write(struct ref_lock *lock,
        if (logfd < 0) {
                if (!(oflags & O_CREAT) && errno == ENOENT)
                        return 0;
-               return error("Unable to append to %s: %s",
-                       lock->log_file, strerror(errno));
+
+               if ((oflags & O_CREAT) && errno == EISDIR) {
+                       if (remove_empty_directories(lock->log_file)) {
+                               return error("There are still logs under '%s'",
+                                            lock->log_file);
+                       }
+                       logfd = open(lock->log_file, oflags, 0666);
+               }
+
+               if (logfd < 0)
+                       return error("Unable to append to %s: %s",
+                                    lock->log_file, strerror(errno));
        }
 
        committer = git_committer_info(1);

diff --git a/t/t3210-pack-refs.sh b/t/t3210-pack-refs.sh
index a4fbfda467602a196c4e39c099720f540ae76cd1..b1e9f2eed22b9938a6dbba89a98f6dcc9f2dded1 100755 (executable)
--- a/t/t3210-pack-refs.sh
+++ b/t/t3210-pack-refs.sh
@@ -11,6 +11,8 @@ semantic is still the same.
 '
 . ./test-lib.sh
 
+echo '[core] logallrefupdates = true' >>.git/config
+
 test_expect_success \
     'prepare a trivial repository' \
     'echo Hello > A &&