Function read_object_info_from_path

odb/source-loose.c:63–204

}

static int read_object_info_from_path(struct odb_source_loose *loose,
				      const char *path,
				      const struct object_id *oid,
				      struct object_info *oi,
				      enum object_info_flags flags)
{
	int ret;
	int fd;
	unsigned long mapsize;
	void *map = NULL;
	git_zstream stream, *stream_to_end = NULL;
	char hdr[MAX_HEADER_LEN];
	size_t size_scratch;
	enum object_type type_scratch;
	struct stat st;

	/*
	 * If we don't care about type or size, then we don't
	 * need to look inside the object at all. Note that we
	 * do not optimize out the stat call, even if the
	 * caller doesn't care about the disk-size, since our
	 * return value implicitly indicates whether the
	 * object even exists.
	 */
	if (!oi || (!oi->typep && !oi->sizep && !oi->contentp)) {
		struct stat st;

		if ((!oi || (!oi->disk_sizep && !oi->mtimep)) && (flags & OBJECT_INFO_QUICK)) {
			ret = quick_has_loose(loose, oid) ? 0 : -1;
			goto out;
		}

		if (lstat(path, &st) < 0) {
			ret = -1;
			goto out;
		}

		if (oi) {
			if (oi->disk_sizep)
				*oi->disk_sizep = st.st_size;
			if (oi->mtimep)
				*oi->mtimep = st.st_mtime;
		}

		ret = 0;
		goto out;
	}

	fd = git_open(path);
	if (fd < 0) {
		if (errno != ENOENT)
			error_errno(_("unable to open loose object %s"), oid_to_hex(oid));
		ret = -1;
		goto out;
	}

	if (fstat(fd, &st)) {
		close(fd);