kallithea Files · rhodecode/lib/vcs/utils/archivers.py

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Marcin Kuzminski

Switched order of actions when doing repo rescan.

doing invalidation after repository scan is not optimal.
In case of big repository we first create an instance then invalidate
cache that we don't actually need. Reversing this order prevents that

# -*- coding: utf-8 -*-
"""
    vcs.utils.archivers
    ~~~~~~~~~~~~~~~~~~~

    set of archiver functions for creating archives from repository content

    :created_on: Jan 21, 2011
    :copyright: (c) 2010-2011 by Marcin Kuzminski, Lukasz Balcerzak.
"""


class BaseArchiver(object):

    def __init__(self):
        self.archive_file = self._get_archive_file()

    def addfile(self):
        """
        Adds a file to archive container
        """
        pass

    def close(self):
        """
        Closes and finalizes operation of archive container object
        """
        self.archive_file.close()

    def _get_archive_file(self):
        """
        Returns container for specific archive
        """
        raise NotImplementedError()


class TarArchiver(BaseArchiver):
    pass


class Tbz2Archiver(BaseArchiver):
    pass


class TgzArchiver(BaseArchiver):
    pass


class ZipArchiver(BaseArchiver):
    pass


def get_archiver(self, kind):
    """
    Returns instance of archiver class specific to given kind

    :param kind: archive kind
    """

    archivers = {
        'tar': TarArchiver,
        'tbz2': Tbz2Archiver,
        'tgz': TgzArchiver,
        'zip': ZipArchiver,
    }

    return archivers[kind]()