"""

        Returns size of the file at given ``path``.

        """

        id = self._get_id_for_path(path)

        blob = self.repository._repo[id]

        return blob.raw_length()

    def get_file_changeset(self, path):

        """

        Returns last commit of the file at the given ``path``.

        """

        node = self.get_node(path)

        return node.history[0]

    def get_file_history(self, path):

        """

        Returns history of file as reversed list of ``Changeset`` objects for

        which file at given ``path`` has been modified.

        TODO: This function now uses os underlying 'git' and 'grep' commands

        which is generally not good. Should be replaced with algorithm

        iterating commits.

        """

        cmd = 'log --pretty="format: %%H" --name-status -p %s -- "%s"' % (

               )

        so, se = self.repository.run_git_command(cmd)

        ids = re.findall(r'\w{40}', so)

        return [self.repository.get_changeset(id) for id in ids]

    def get_file_annotate(self, path):

        """

        Returns a list of three element tuples with lineno,changeset and line

        TODO: This function now uses os underlying 'git' command which is

        generally not good. Should be replaced with algorithm iterating

        commits.

        """

        cmd = 'blame -l --root -r %s -- "%s"' % (self.id, path)

        # -l     ==> outputs long shas (and we need all 40 characters)

        # --root ==> doesn't put '^' character for bounderies

        # -r sha ==> blames for the given revision

        so, se = self.repository.run_git_command(cmd)

        annotate = []

        for i, blame_line in enumerate(so.split('\n')[:-1]):

            ln_no = i + 1

            id, line = re.split(r' \(.+?\) ', blame_line, 1)

            annotate.append((ln_no, self.repository.get_changeset(id), line))

        return annotate