From: Greg Brockman <gdb@mit.edu>
Date: Fri, 22 Jan 2010 14:45:09 +0000 (-0500)
Subject: Removed invirt-web-afs-apache
X-Git-Tag: 0.0.29~1
X-Git-Url: http://xvm.mit.edu/gitweb/invirt/packages/invirt-base.git/commitdiff_plain/30641d7872dd5f494c965b4d9f01e8d8910dc4f4?ds=sidebyside

Removed invirt-web-afs-apache

svn path=/trunk/packages/invirt-base/; revision=2920
---

diff --git a/debian/changelog b/debian/changelog
index 928fc71..dda2cdb 100644
--- a/debian/changelog
+++ b/debian/changelog
@@ -1,3 +1,9 @@
+invirt-base (0.0.29) unstable; urgency=low
+
+  * Added a safestructs for doing config without raising.
+
+ -- Greg Brockman <gdb@mit.edu>  Tue, 19 Jan 2010 23:49:19 -0500
+
 invirt-base (0.0.28) unstable; urgency=low
 
   * Completely remove the invirt.authz Python package - it will be
diff --git a/python/invirt/common.py b/python/invirt/common.py
index e4f7c25..77b8da5 100644
--- a/python/invirt/common.py
+++ b/python/invirt/common.py
@@ -10,24 +10,28 @@ class InvirtConfigError(AttributeError):
 
 class struct(dict):
     'A simple namespace object.'
-    def __init__(self, d = {}, __prefix = None, **kwargs):
+    def __init__(self, d = {}, __prefix = None, __default=None, **kwargs):
         super(struct, self).__init__(d)
         self.__prefix = __prefix
+        self.__default = __default
         self.update(kwargs)
     def __getattr__(self, key):
         try:
             return self[key]
         except KeyError:
-            # XX ideally these would point a frame higher on the stack.
-            prefix = self.__prefix
-            if prefix is not None:
-                raise InvirtConfigError('missing configuration variable %s%s'
-                                        % (prefix, key))
+            if self.__default is None:
+                # XX ideally these would point a frame higher on the stack.
+                prefix = self.__prefix
+                if prefix is not None:
+                    raise InvirtConfigError('missing configuration variable '
+                                            '%s%s' % (prefix, key))
+                else:
+                    raise AttributeError("anonymous struct has no member '%s'"
+                                         % (key,))
             else:
-                raise AttributeError("anonymous struct has no member '%s'"
-                                     % (key,))
+                return struct({}, '', self.__default)
 
-def dicts2struct(x, prefix = None):
+def dicts2struct(x, prefix = None, default = None):
     """
     Given a tree of lists/dicts, perform a deep traversal to transform all the
     dicts to structs.
@@ -37,13 +41,15 @@ def dicts2struct(x, prefix = None):
     else:
         def newprefix(k): return prefix
     if type(x) == dict:
-        return struct(((k, dicts2struct(v, newprefix(k)))
+        return struct(((k, dicts2struct(v, newprefix(k), default))
                        for k,v in x.iteritems()),
-                      prefix)
+                      prefix,
+                      default)
     elif type(x) == list:
-        return [dicts2struct(v, newprefix(i)) for i, v in enumerate(x)]
+        return [dicts2struct(v, newprefix(i), default)
+                for i, v in enumerate(x)]
     elif x is None:
-        return struct({}, prefix)
+        return struct({}, prefix, default)
     else:
         return x
 
diff --git a/python/invirt/config.py b/python/invirt/config.py
index bcd2423..039ca3d 100644
--- a/python/invirt/config.py
+++ b/python/invirt/config.py
@@ -141,5 +141,6 @@ def load(force_refresh = False):
 
 dicts = load()
 structs = dicts2struct(dicts, '')
+safestructs = dicts2struct(dicts, '', '')
 
 # vim:et:sw=4:ts=4