Test in git-init-db if the filemode can be trusted

[git.git] / fsck-objects.c

diff --git a/fsck-objects.c b/fsck-objects.c
index 6cb0f29..17d0536 100644 (file)
--- a/fsck-objects.c
+++ b/fsck-objects.c
@@ -30,7 +30,7 @@ static void objreport(struct object *obj, const char *severity,
        fputs("\n", stderr);
 }
 
-int objerror(struct object *obj, const char *err, ...)
+static int objerror(struct object *obj, const char *err, ...)
 {
        va_list params;
        va_start(params, err);
@@ -39,7 +39,7 @@ int objerror(struct object *obj, const char *err, ...)
        return -1;
 }
 
-int objwarning(struct object *obj, const char *err, ...)
+static int objwarning(struct object *obj, const char *err, ...)
 {
        va_list params;
        va_start(params, err);
@@ -329,9 +329,8 @@ static int fsck_dir(int i, char *path)
        DIR *dir = opendir(path);
        struct dirent *de;
 
-       if (!dir) {
-               return error("missing sha1 directory '%s'", path);
-       }
+       if (!dir)
+               return 0;
 
        while ((de = readdir(dir)) != NULL) {
                char name[100];
@@ -402,28 +401,17 @@ static void fsck_object_dir(const char *path)
 
 static int fsck_head_link(void)
 {
-       int fd, count;
-       char hex[40];
        unsigned char sha1[20];
-       static char path[PATH_MAX], link[PATH_MAX];
-       const char *git_dir;
-
-       git_dir = getenv(GIT_DIR_ENVIRONMENT);
-       if (!git_dir) git_dir = DEFAULT_GIT_DIR_ENVIRONMENT;
-
-       snprintf(path, sizeof(path), "%s/HEAD", git_dir);
-       if (readlink(path, link, sizeof(link)) < 0)
-               return error("HEAD is not a symlink");
-       if (strncmp("refs/heads/", link, 11))
-               return error("HEAD points to something strange (%s)", link);
-       fd = open(path, O_RDONLY);
-       if (fd < 0)
-               return error("HEAD: %s", strerror(errno));
-       count = read(fd, hex, sizeof(hex));
-       close(fd);
-       if (count < 0)
-               return error("HEAD: %s", strerror(errno));
-       if (count < 40 || get_sha1_hex(hex, sha1))
+       const char *git_HEAD = strdup(git_path("HEAD"));
+       const char *git_refs_heads_master = resolve_ref(git_HEAD, sha1, 1);
+       int pfxlen = strlen(git_HEAD) - 4; /* strip .../.git/ part */
+
+       if (!git_refs_heads_master)
+               return error("HEAD is not a symbolic ref");
+       if (strncmp(git_refs_heads_master + pfxlen, "refs/heads/", 11))
+               return error("HEAD points to something strange (%s)",
+                            git_refs_heads_master + pfxlen);
+       if (!memcmp(null_sha1, sha1, 20))
                return error("HEAD: not a valid git pointer");
        return 0;
 }