dep_check_composite_db: implement cp_list

This is used by dep_check since commit
6f9ee9c508c1506cdf8eb0dc46796dbe30f268db.

diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 83d6e9b9a342cf2a833f13fe2ad5334b7828910c..80a7d6c65b50786dbacd9247b5d239c85d809ca8 100644 (file)
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -6048,6 +6048,23 @@ class _dep_check_composite_db(dbapi):
                self._match_cache.clear()
                self._cpv_pkg_map.clear()
 
+       def cp_list(self, cp):
+               """
+               Emulate cp_list just so it can be used to check for existence
+               of new-style virtuals.
+               """
+               if isinstance(cp, Atom):
+                       atom = cp
+               else:
+                       atom = Atom(cp)
+               ret = []
+               for pkg in self._depgraph._iter_match_pkgs_any(
+                       self._depgraph._frozen_config.roots[self._root], atom):
+                       if pkg.cp == cp:
+                               ret.append(pkg.cpv)
+
+               return ret
+
        def match(self, atom):
                ret = self._match_cache.get(atom)
                if ret is not None: