View file File name : tahoebackend.py Content :# -*- Mode:Python; indent-tabs-mode:nil; tab-width:4; encoding:utf8 -*- # # Copyright 2008 Francois Deppierraz # # This file is part of duplicity. # # Duplicity 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 3 of the License, or (at your # option) any later version. # # Duplicity 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 duplicity; if not, write to the Free Software Foundation, # Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA from duplicity import log from duplicity import util import duplicity.backend class TAHOEBackend(duplicity.backend.Backend): u""" Backend for the Tahoe file system """ def __init__(self, parsed_url): duplicity.backend.Backend.__init__(self, parsed_url) url = parsed_url.path.strip(u'/').split(u'/') self.alias = url[0] if len(url) > 1: self.directory = u"/".join(url[1:]) else: self.directory = u"" log.Debug(u"tahoe: %s -> %s:%s" % (url, self.alias, self.directory)) def get_remote_path(self, filename=None): if filename is None: if self.directory != u"": return u"%s:%s" % (self.alias, self.directory) else: return u"%s:" % self.alias if isinstance(filename, b"".__class__): filename = util.fsdecode(filename) if self.directory != u"": return u"%s:%s/%s" % (self.alias, self.directory, filename) else: return u"%s:%s" % (self.alias, filename) def run(self, *args): cmd = u" ".join(args) _, output, _ = self.subprocess_popen(cmd) return output def _put(self, source_path, remote_filename): self.run(u"tahoe", u"cp", source_path.uc_name, self.get_remote_path(remote_filename)) def _get(self, remote_filename, local_path): self.run(u"tahoe", u"cp", self.get_remote_path(remote_filename), local_path.uc_name) def _list(self): output = self.run(u"tahoe", u"ls", self.get_remote_path()) return [util.fsencode(x) for x in output.split(u'\n') if x] def _delete(self, filename): self.run(u"tahoe", u"rm", self.get_remote_path(filename)) duplicity.backend.register_backend(u"tahoe", TAHOEBackend)