+# Cumulus: Efficient Filesystem Backup to the Cloud
+# Copyright (C) 2008-2009 The Cumulus Developers
+# See the AUTHORS file for a list of contributors.
+#
+# 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.
+
+from __future__ import division, print_function, unicode_literals
+
import os, sys, tempfile
import cumulus.store
type_patterns = cumulus.store.type_patterns
class FileStore(cumulus.store.Store):
- def __init__(self, prefix):
- while prefix.endswith("/") and prefix != "/": prefix = prefix[:-1]
- self.prefix = prefix
-
- def _get_path(self, type, name):
- return "%s/%s" % (self.prefix, name)
+ def __init__(self, url, **kw):
+ # if constructor isn't called via factory interpret url as filename
+ if not hasattr (self, 'path'):
+ self.path = url
+ self.prefix = self.path.rstrip("/")
- def list(self, type):
- files = os.listdir(self.prefix)
- return (f for f in files if type_patterns[type].match(f))
+ def list(self, subdir):
+ try:
+ return os.listdir(os.path.join(self.prefix, subdir))
+ except OSError:
+ raise cumulus.store.NotFoundError(subdir)
- def get(self, type, name):
- k = self._get_path(type, name)
- return open(k, 'rb')
+ def get(self, path):
+ try:
+ return open(os.path.join(self.prefix, path), 'rb')
+ except IOError:
+ raise cumulus.store.NotFoundError(path)
- def put(self, type, name, fp):
- k = self._get_path(type, name)
- out = open(k, 'wb')
+ def put(self, path, fp):
+ out = open(os.path.join(self.prefix, path), 'wb')
buf = fp.read(4096)
while len(buf) > 0:
out.write(buf)
buf = fp.read(4096)
- def delete(self, type, name):
- k = self._get_path(type, name)
- os.unlink(k)
+ def delete(self, path):
+ os.unlink(os.path.join(self.prefix, path))
- def stat(self, type, name):
+ def stat(self, path):
try:
- stat = os.stat(self._get_path(type, name))
+ stat = os.stat(os.path.join(self.prefix, path))
return {'size': stat.st_size}
except OSError:
- raise cumulus.store.NotFoundError
+ raise cumulus.store.NotFoundError(path)
+
+Store = FileStore