Function for_each_file_in_obj_subdir

object-file.c:1457–1525

}

int for_each_file_in_obj_subdir(unsigned int subdir_nr,
				struct strbuf *path,
				const struct git_hash_algo *algop,
				each_loose_object_fn obj_cb,
				each_loose_cruft_fn cruft_cb,
				each_loose_subdir_fn subdir_cb,
				void *data)
{
	size_t origlen, baselen;
	DIR *dir;
	struct dirent *de;
	int r = 0;
	struct object_id oid;

	if (subdir_nr > 0xff)
		BUG("invalid loose object subdirectory: %x", subdir_nr);

	origlen = path->len;
	strbuf_complete(path, '/');
	strbuf_addf(path, "%02x", subdir_nr);

	dir = opendir(path->buf);
	if (!dir) {
		if (errno != ENOENT)
			r = error_errno(_("unable to open %s"), path->buf);
		strbuf_setlen(path, origlen);
		return r;
	}

	oid.hash[0] = subdir_nr;
	strbuf_addch(path, '/');
	baselen = path->len;

	while ((de = readdir_skip_dot_and_dotdot(dir))) {
		size_t namelen;

		namelen = strlen(de->d_name);
		strbuf_setlen(path, baselen);
		strbuf_add(path, de->d_name, namelen);
		if (namelen == algop->hexsz - 2 &&
		    !hex_to_bytes(oid.hash + 1, de->d_name,
				  algop->rawsz - 1)) {
			oid_set_algo(&oid, algop);
			memset(oid.hash + algop->rawsz, 0,
			       GIT_MAX_RAWSZ - algop->rawsz);
			if (obj_cb) {
				r = obj_cb(&oid, path->buf, data);
				if (r)
					break;
			}
			continue;
		}

		if (cruft_cb) {
			r = cruft_cb(de->d_name, path->buf, data);
			if (r)
				break;
		}