From: Zac Medico <zmedico@gentoo.org>
Date: Wed, 11 May 2011 04:03:02 +0000 (-0700)
Subject: dep_check_composite_db: return early from cp_list
X-Git-Tag: v2.2.0_alpha33~11
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=bd78d51c715b711a5d496d68bb48421b777bf609;p=portage.git

dep_check_composite_db: return early from cp_list

Since this implementation is only intended to check for existence of
new-style virtuals, it's a waste of time to return more than one cpv.
---

diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index 6c79819d2..b8089ae96 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -6051,7 +6051,9 @@ class _dep_check_composite_db(dbapi):
 	def cp_list(self, cp):
 		"""
 		Emulate cp_list just so it can be used to check for existence
-		of new-style virtuals.
+		of new-style virtuals. Since it's a waste of time to return
+		more than one cpv for this use case, a maximum of one cpv will
+		be returned.
 		"""
 		if isinstance(cp, Atom):
 			atom = cp
@@ -6062,6 +6064,7 @@ class _dep_check_composite_db(dbapi):
 			self._depgraph._frozen_config.roots[self._root], atom):
 			if pkg.cp == cp:
 				ret.append(pkg.cpv)
+				break
 
 		return ret