Add a new DummyPackageSet handler to make set operators easier to use

svn path=/main/trunk/; revision=11598

diff --git a/pym/portage/sets/base.py b/pym/portage/sets/base.py
index 4de3e847da0e9eddbfc8bcf0d29da1f2f1b894a2..370b03d45009148c70f3da1db5ba223d3961b90a 100644 (file)
--- a/pym/portage/sets/base.py
+++ b/pym/portage/sets/base.py
@@ -219,3 +219,16 @@ class InternalPackageSet(EditablePackageSet):
        def write(self):
                pass
 
+class DummyPackageSet(PackageSet):
+       def __init__(self, atoms=None):
+               super(DummyPackageSet, self).__init__()
+               if atoms:
+                       self._setAtoms(atoms)
+       
+       def load(self):
+               pass
+       
+       def singleBuilder(cls, options, settings, trees):
+               atoms = options.get("packages", "").split()
+               return DummyPackageSet(atoms=atoms)
+       singleBuilder = classmethod(singleBuilder)