1 files changed, 56 insertions, 0 deletions
diff --git a/cloudinit/config/__init__.py b/cloudinit/config/__init__.py
new file mode 100644
index 00000000..69a8cc68
--- /dev/null
+++ b/cloudinit/config/__init__.py
@@ -0,0 +1,56 @@
+# vi: ts=4 expandtab
+#
+#    Copyright (C) 2008-2010 Canonical Ltd.
+#    Copyright (C) 2012 Hewlett-Packard Development Company, L.P.
+#
+#    Author: Chuck Short <chuck.short@canonical.com>
+#    Author: Juerg Haefliger <juerg.haefliger@hp.com>
+#
+#    This program is free software: you can redistribute it and/or modify
+#    it under the terms of the GNU General Public License version 3, as
+#    published by the Free Software Foundation.
+#
+#    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, see <http://www.gnu.org/licenses/>.
+#
+
+from cloudinit.settings import (PER_INSTANCE, FREQUENCIES)
+
+from cloudinit import log as logging
+
+LOG = logging.getLogger(__name__)
+
+# This prefix is used to make it less
+# of a chance that when importing
+# we will not find something else with the same
+# name in the lookup path...
+MOD_PREFIX = "cc_"
+
+
+def form_module_name(name):
+    canon_name = name.replace("-", "_")
+    if canon_name.lower().endswith(".py"):
+        canon_name = canon_name[0:(len(canon_name) - 3)]
+    canon_name = canon_name.strip()
+    if not canon_name:
+        return None
+    if not canon_name.startswith(MOD_PREFIX):
+        canon_name = '%s%s' % (MOD_PREFIX, canon_name)
+    return canon_name
+
+
+def fixup_module(mod, def_freq=PER_INSTANCE):
+    if not hasattr(mod, 'frequency'):
+        setattr(mod, 'frequency', def_freq)
+    else:
+        freq = mod.frequency
+        if freq and freq not in FREQUENCIES:
+            LOG.warn("Module %s has an unknown frequency %s", mod, freq)
+    if not hasattr(mod, 'distros'):
+        setattr(mod, 'distros', None)
+    return mod