refs.c: make sure leading directories exist before writing a ref.

Otherwise cloning a repository with hierarchical branch/tag
over http would fail.

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

diff --git a/refs.c b/refs.c
index ac2619851d63e45a5f0d97b780e59af60fcc182b..d2aec73edcbe06cf63009ac7dd85fa53b6c995b9 100644 (file)
--- a/refs.c
+++ b/refs.c
@@ -292,6 +292,8 @@ int write_ref_sha1(const char *ref, int fd, const unsigned char *sha1)
                return -1;
        filename = ref_file_name(ref);
        lock_filename = ref_lock_file_name(ref);
                return -1;
        filename = ref_file_name(ref);
        lock_filename = ref_lock_file_name(ref);

+       if (safe_create_leading_directories(filename))
+               die("unable to create leading directory for %s", filename);

        retval = write_ref_file(filename, lock_filename, fd, sha1);
        free(filename);
        free(lock_filename);
        retval = write_ref_file(filename, lock_filename, fd, sha1);
        free(filename);
        free(lock_filename);


@@ -358,6 +360,8 @@ int write_ref_sha1_unlocked(const char *ref, const unsigned char *sha1)
                return -1;
        filename = ref_file_name(ref);
        lock_filename = ref_lock_file_name(ref);
                return -1;
        filename = ref_file_name(ref);
        lock_filename = ref_lock_file_name(ref);

+       if (safe_create_leading_directories(filename))
+               die("unable to create leading directory for %s", filename);

        fd = open(lock_filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
        if (fd < 0) {
                error("Writing %s", lock_filename);
        fd = open(lock_filename, O_WRONLY | O_CREAT | O_EXCL, 0666);
        if (fd < 0) {
                error("Writing %s", lock_filename);