Move things from routing.py to tools/routing.py

This stops a cyclic import.

Move add_route, mount and endpoint_to_controller into
tools/routing.py and change all callers.

1 files changed, 63 insertions, 0 deletions

diff --git a/mediagoblin/tools/routing.py b/mediagoblin/tools/routing.py
new file mode 100644
index 00000000..6c5acbec
--- /dev/null
+++ b/mediagoblin/tools/routing.py
@@ -0,0 +1,63 @@
+# GNU MediaGoblin -- federated, autonomous media hosting
+# Copyright (C) 2011, 2012 MediaGoblin contributors.  See AUTHORS.
+#
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU Affero General Public License as published by
+# the Free Software Foundation, either version 3 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 Affero General Public License for more details.
+#
+# You should have received a copy of the GNU Affero General Public License
+# along with this program.  If not, see <http://www.gnu.org/licenses/>.
+
+import logging
+
+from werkzeug.routing import Map, Rule
+from mediagoblin.tools.common import import_component
+
+
+_log = logging.getLogger(__name__)
+
+url_map = Map()
+
+view_functions = {}
+
+
+def endpoint_to_controller(endpoint):
+    view_func = view_functions[endpoint]
+
+    _log.debug('endpoint: {0} view_func: {1}'.format(endpoint, view_func))
+
+    # import the endpoint, or if it's already a callable, call that
+    if isinstance(view_func, basestring):
+        view_func = import_component(view_func)
+        view_functions[endpoint] = view_func
+
+    return view_func
+
+
+def add_route(endpoint, url, controller):
+    """
+    Add a route to the url mapping
+    """
+    # XXX: We cannot use this, since running tests means that the plugin
+    # routes will be populated over and over over the same session.
+    #
+    # assert endpoint not in view_functions.keys(), 'Trying to overwrite a rule'
+
+    view_functions.update({endpoint: controller})
+
+    url_map.add(Rule(url, endpoint=endpoint))
+
+
+def mount(mountpoint, routes):
+    """
+    Mount a bunch of routes to this mountpoint
+    """
+    for endpoint, url, controller in routes:
+        url = "%s/%s" % (mountpoint.rstrip('/'), url.lstrip('/'))
+        add_route(endpoint, url, controller)