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Viewing changes to breezy/archive/__init__.py

  • Committer: Jelmer Vernooij
  • Date: 2018-05-19 13:16:11 UTC
  • mto: (6968.4.3 git-archive)
  • mto: This revision was merged to the branch mainline in revision 6972.
  • Revision ID: jelmer@jelmer.uk-20180519131611-l9h9ud41j7qg1m03
Move tar/zip to breezy.archive.

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breezy/archive/__init__.py
 
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# Copyright (C) 2018 Breezy Developers
 
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#
 
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# This program is free software; you can redistribute it and/or modify
 
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# it under the terms of the GNU General Public License as published by
 
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# the Free Software Foundation; either version 2 of the License, or
 
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# (at your option) any later version.
 
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#
 
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# This program is distributed in the hope that it will be useful,
 
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
 
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 
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# GNU General Public License for more details.
 
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#
 
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# You should have received a copy of the GNU General Public License
 
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# along with this program; if not, write to the Free Software
 
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# Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
 
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"""Export trees to tarballs, zipfiles, etc.
 
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"""
 
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from __future__ import absolute_import
 
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import os
 
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import time
 
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import warnings
 
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from .. import (
 
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    errors,
 
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    pyutils,
 
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    registry,
 
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    trace,
 
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    )
 
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class ArchiveFormatInfo(object):
 
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    def __init__(self, extensions):
 
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        self.extensions = extensions
 
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class ArchiveFormatRegistry(registry.Registry):
 
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    """Registry of archive formats."""
 
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    def __init__(self):
 
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        super(ArchiveFormatRegistry, self)._extension_map = {}
 
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    def register(self, key, factory, extensions, help=None):
 
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        """Register an archive format.
 
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        """
 
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        registry.Registry.register(self, key, factory, help,
 
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            ArchiveFormatInfo(extensions))
 
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        self._register_extensions(key, extensions)
 
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    def register_lazy(self, key, module_name, member_name, extensions,
 
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                      help=None):
 
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        registry.Registry.register_lazy(self, key, module_name, member_name,
 
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            help, ArchiveFormatInfo(extensions))
 
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        self._register_extensions(key, extensions)
 
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    def _register_extensions(self, name, extensions):
 
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        for ext in extensions:
 
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            self._extension_map[ext] = name
 
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    def get_format_from_filename(self, filename):
 
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        """Determine the archive format from an extension.
 
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        :param filename: Filename to guess from
 
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        :return: A format name, or None
 
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        """
 
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        for ext, format in self.extensions.items():
 
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            if filename.endswith(ext):
 
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                return format
 
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        else:
 
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            return None
 
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format_registry = ArchiveFormatRegistry()
 
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format_registry.register_lazy('tar', 'breezy.archive.tar',
 
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                              'plain_tar_archive_generator', ['.tar'], )
 
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format_registry.register_lazy('tgz', 'breezy.archive.tar',
 
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                              'tgz_archive_generator', ['.tar.gz', '.tgz'])
 
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format_registry.register_lazy('tbz2', 'breezy.archive.tar',
 
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                              'tbz_archive_generator',  ['.tar.bz2', '.tbz2'])
 
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format_registry.register_lazy('tlzma', 'breezy.archive.tar',
 
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                              'tar_lzma_archive_generator', ['.tar.lzma'])
 
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format_registry.register_lazy('txz', 'breezy.archive.tar',
 
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                              'tar_xz_archive_generator', ['.tar.xz'])
 
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format_registry.register_lazy('zip', 'breezy.archive.zip',
 
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                              'zip_archive_generator', ['.zip'])