objects.py 文件源码

def check(self):
        """Check this object for internal consistency.

        :raise ObjectFormatException: if the object is malformed in some way
        """
        super(Tree, self).check()
        last = None
        allowed_modes = (stat.S_IFREG | 0o755, stat.S_IFREG | 0o644,
                         stat.S_IFLNK, stat.S_IFDIR, S_IFGITLINK,
                         # TODO: optionally exclude as in git fsck --strict
                         stat.S_IFREG | 0o664)
        for name, mode, sha in parse_tree(b''.join(self._chunked_text),
                                          True):
            check_hexsha(sha, 'invalid sha %s' % sha)
            if b'/' in name or name in (b'', b'.', b'..'):
                raise ObjectFormatException('invalid name %s' % name)

            if mode not in allowed_modes:
                raise ObjectFormatException('invalid mode %06o' % mode)

            entry = (name, (mode, sha))
            if last:
                if key_entry(last) > key_entry(entry):
                    raise ObjectFormatException('entries not sorted')
                if name == last[0]:
                    raise ObjectFormatException('duplicate entry %s' % name)
            last = entry