/brz/remove-bazaar

# Copyright (C) 2018 Breezy Developers

#

# This program is free software; you can redistribute it and/or modify

# it under the terms of the GNU General Public License as published by

# the Free Software Foundation; either version 2 of the License, or

# (at your option) any later version.

#

# This program is distributed in the hope that it will be useful,

# but WITHOUT ANY WARRANTY; without even the implied warranty of

# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the

# GNU General Public License for more details.

#

# You should have received a copy of the GNU General Public License

# along with this program; if not, write to the Free Software

# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA

"""Export trees to tarballs, zipfiles, etc.

"""

import os

import time

import warnings

from .. import (

    errors,

    pyutils,

    registry,

    trace,

    )

class ArchiveFormatInfo(object):

    def __init__(self, extensions):

        self.extensions = extensions

class ArchiveFormatRegistry(registry.Registry):

    """Registry of archive formats."""

    def __init__(self):

        self._extension_map = {}

        super(ArchiveFormatRegistry, self).__init__()

    @property

    def extensions(self):

        return self._extension_map.keys()

    def register(self, key, factory, extensions, help=None):

        """Register an archive format.

        """

        registry.Registry.register(self, key, factory, help,

                                   ArchiveFormatInfo(extensions))

        self._register_extensions(key, extensions)

    def register_lazy(self, key, module_name, member_name, extensions,

                      help=None):

        registry.Registry.register_lazy(self, key, module_name, member_name,

                                        help, ArchiveFormatInfo(extensions))

        self._register_extensions(key, extensions)

    def _register_extensions(self, name, extensions):

        for ext in extensions:

            self._extension_map[ext] = name

    def get_format_from_filename(self, filename):

        """Determine the archive format from an extension.

        :param filename: Filename to guess from

        :return: A format name, or None

        """

        for ext, format in self._extension_map.items():

            if filename.endswith(ext):

                return format

        else:

            return None

def create_archive(format, tree, name, root=None, subdir=None,

                   force_mtime=None):

    try:

        archive_fn = format_registry.get(format)

    except KeyError:

        raise errors.NoSuchExportFormat(format)

    return archive_fn(tree, name, root=root, subdir=subdir,

                      force_mtime=force_mtime)

format_registry = ArchiveFormatRegistry()

format_registry.register_lazy('tar', 'breezy.archive.tar',

                              'plain_tar_generator', ['.tar'], )

format_registry.register_lazy('tgz', 'breezy.archive.tar',

                              'tgz_generator', ['.tar.gz', '.tgz'])

format_registry.register_lazy('tbz2', 'breezy.archive.tar',

                              'tbz_generator', ['.tar.bz2', '.tbz2'])

format_registry.register_lazy('tlzma', 'breezy.archive.tar',

                              'tar_lzma_generator', ['.tar.lzma'])

format_registry.register_lazy('txz', 'breezy.archive.tar',

                              'tar_xz_generator', ['.tar.xz'])

format_registry.register_lazy('zip', 'breezy.archive.zip',

                              'zip_archive_generator', ['.zip'])