Allow attach custom storage backend

config

@@ -104,6 +104,7 @@ committer = Firstname Lastname <Radicale@Radicale.org>
 
 [rights]
 # Rights backend
+# Value: regex
 backend = "regex"
 
 # Rights management method
@@ -116,9 +117,12 @@ file = ~/.config/radicale/rights
 
 [storage]
 # Storage backend
-# Value: filesystem | multifilesystem | database
+# Value: filesystem | multifilesystem | database | custom
 type = filesystem
 
+# Custom storage handler
+custom_handler =
+
 # Folder for storing local collections, created if not present
 filesystem_folder = ~/.config/radicale/collections
 

radicale/config.py

@@ -81,6 +81,7 @@ INITIAL_CONFIG = {
         "file": "~/.config/radicale/rights"},
     "storage": {
         "type": "filesystem",
+        "custom_handler": "",
         "filesystem_folder": os.path.expanduser(
             "~/.config/radicale/collections"),
         "database_url": ""},

radicale/storage/__init__.py

@@ -23,15 +23,20 @@ This module loads the storage backend, according to the storage
 configuration.
 
 """
-
+import sys
 from .. import config, ical
 
 
 def load():
     """Load list of available storage managers."""
     storage_type = config.get("storage", "type")
-    root_module = __import__(
-        "storage.%s" % storage_type, globals=globals(), level=2)
-    module = getattr(root_module, storage_type)
+    if storage_type == "custom":
+        storage_module = config.get("storage", "custom_handler")
+        __import__(storage_module)
+        module = sys.modules[storage_module]
+    else:
+        root_module = __import__(
+            "storage.%s" % storage_type, globals=globals(), level=2)
+        module = getattr(root_module, storage_type)
     ical.Collection = module.Collection
     return module

tests/__init__.py

@@ -123,6 +123,25 @@ class GitMultiFileSystem(GitFileSystem, MultiFileSystem):
     """Base class for multifilesystem tests using Git"""
 
 
+class CustomStorageSystem(BaseTest):
+    """Base class for custom backend tests."""
+    storage_type = "custom"
+
+    def setup(self):
+        """Setup function for each test."""
+        self.colpath = tempfile.mkdtemp()
+        config.set("storage", "type", self.storage_type)
+        config.set("storage", "custom_handler", "tests.custom.storage")
+        from tests.custom import storage
+        storage.FOLDER = self.colpath
+        storage.GIT_REPOSITORY = None
+        self.application = radicale.Application()
+
+    def teardown(self):
+        """Teardown function for each test."""
+        shutil.rmtree(self.colpath)
+
+
 class AuthSystem(BaseTest):
     """Base class to test Radicale with Htpasswd authentication"""
     def setup(self):

tests/custom/storage.py

@@ -0,0 +1,30 @@
+# -*- coding: utf-8 -*-
+#
+# This file is part of Radicale Server - Calendar Server
+# Copyright © 2012-2013 Guillaume Ayoub
+#
+# This library 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.
+#
+# This library 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 Radicale.  If not, see <http://www.gnu.org/licenses/>.
+
+"""
+Custom storage backend.
+
+Copy of filesystem storage backend for testing
+
+"""
+
+from radicale.storage import filesystem
+
+
+class Collection(filesystem.Collection):
+    """Collection stored in a flat ical file."""

tests/test_base.py

@@ -25,6 +25,7 @@ from . import (FileSystem, MultiFileSystem, DataBaseSystem,
                GitFileSystem, GitMultiFileSystem)
 from .helpers import get_file_content
 import sys
+from tests import CustomStorageSystem
 
 
 class BaseRequests(object):
@@ -83,7 +84,7 @@ class BaseRequests(object):
 
 # Generate classes with different configs
 cl_list = [FileSystem, MultiFileSystem, DataBaseSystem,
-           GitFileSystem, GitMultiFileSystem]
+           GitFileSystem, GitMultiFileSystem, CustomStorageSystem]
 for cl in cl_list:
     classname = "Test%s" % cl.__name__
     setattr(sys.modules[__name__],