test: t4102-apply-rename fails with strict umask.

diff --git a/index.c b/index.c
index bdde65f75c9d2a9b77e6bf290ebed57f12c8e70b..ad0eafedc288f2cf6b0d7c2493495087451ef466 100644 (file)
--- a/index.c
+++ b/index.c
@@ -22,14 +22,16 @@ static void remove_lock_file_on_signal(int signo)
 
 int hold_index_file_for_update(struct cache_file *cf, const char *path)
 {
+       int fd;
        sprintf(cf->lockfile, "%s.lock", path);
-       cf->next = cache_file_list;
-       cache_file_list = cf;
-       if (!cf->next) {
+       fd = open(cf->lockfile, O_RDWR | O_CREAT | O_EXCL, 0666);
+       if (fd >=0 && !cf->next) {
+               cf->next = cache_file_list;
+               cache_file_list = cf;
                signal(SIGINT, remove_lock_file_on_signal);
                atexit(remove_lock_file);
        }
-       return open(cf->lockfile, O_RDWR | O_CREAT | O_EXCL, 0666);
+       return fd;
 }
 
 int commit_index_file(struct cache_file *cf)