Refactors Cabal to fit the new mediator pattern design

Cabal has now been split into a builder, cabal, a fetcher, hackage, and a port aka mediator, haskellport. It's been gutted to try to match some common api between the base classes. Also, bits of Darcs have been pulled out into packagesource.

1 files changed, 2 insertions, 1 deletions

diff --git a/modules/packagesource.py b/modules/packagesource.py
index b0b87b8..1e88311 100644
--- a/modules/packagesource.py
+++ b/modules/packagesource.py
@@ -17,6 +17,7 @@
 #
 from __future__ import with_statement
 
+from contextlib import contextmanager
 from os import makedirs
 from os.path import join
 
@@ -78,7 +79,7 @@ class PackageSource(Directory):
     def src_dir(self, *args):
         '''executes a code block inside a specific branch and or checkout
         '''
-        with src(*args):
+        with self.src(*args):
             with pwd(self.source_dir):
                 yield