Add corner case tests for diff-index and diff-files

diff --git a/builtin-init-db.c b/builtin-init-db.c
index 79eaf8d6edf18675897f6eed571289fce450526a..2854868b4e4185d33024b9fe5d00ad631c18bb36 100644 (file)
--- a/builtin-init-db.c
+++ b/builtin-init-db.c
@@ -167,9 +167,9 @@ static int create_default_files(const char *git_dir, const char *template_path)
 {
        unsigned len = strlen(git_dir);
        static char path[PATH_MAX];
-       unsigned char sha1[20];
        struct stat st1;
        char repo_version_string[10];
+       char junk[2];
        int reinit;
        int filemode;
 
@@ -219,7 +219,8 @@ static int create_default_files(const char *git_dir, const char *template_path)
         * branch, if it does not exist yet.
         */
        strcpy(path + len, "HEAD");
-       reinit = !read_ref("HEAD", sha1);
+       reinit = (!access(path, R_OK)
+                 || readlink(path, junk, sizeof(junk)-1) != -1);
        if (!reinit) {
                if (create_symref("HEAD", "refs/heads/master", NULL) < 0)
                        exit(1);