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# 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'])
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