From f424cc99fc4e2d36ac9a8eee6be09711c46fa4d5 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sat, 21 Jun 2008 14:58:13 +0000
Subject: Make LibraryConsumerSet.mapPathsToAtoms() use the contents index for
 more efficient owner lookups.

svn path=/main/trunk/; revision=10754
---
 pym/portage/sets/libs.py | 21 +++++++--------------
 1 file changed, 7 insertions(+), 14 deletions(-)

(limited to 'pym')

diff --git a/pym/portage/sets/libs.py b/pym/portage/sets/libs.py
index 774ef5ac4..e8d6a6107 100644
--- a/pym/portage/sets/libs.py
+++ b/pym/portage/sets/libs.py
@@ -4,10 +4,7 @@
 
 from portage.sets.base import PackageSet
 from portage.sets import get_boolean
-from portage.dbapi.vartree import dblink
-from portage.versions import catsplit, catpkgsplit
-
-import os
+from portage.versions import catpkgsplit
 
 class LibraryConsumerSet(PackageSet):
 	_operations = ["merge", "unmerge"]
@@ -19,17 +16,13 @@ class LibraryConsumerSet(PackageSet):
 
 	def mapPathsToAtoms(self, paths):
 		rValue = set()
-		for cpv in self.dbapi.cpv_all():
-			mysplit = catsplit(cpv)
-			link = dblink(mysplit[0], mysplit[1], myroot=self.dbapi.root, \
-					mysettings=self.dbapi.settings, treetype='vartree', \
-					vartree=self.dbapi.vartree)
-			if paths.intersection(link.getcontents()):
-				cat, pn = catpkgsplit(cpv)[:2]
-				slot = self.dbapi.aux_get(cpv, ["SLOT"])[0]
-				rValue.add("%s/%s:%s" % (cat, pn, slot))
+		root_len = len(self.dbapi.root)
+		for link, relative_p in self.dbapi._owners.iter_owners(
+			p[root_len:] for p in paths):
+			cat, pn = catpkgsplit(link.mycpv)[:2]
+			slot = self.dbapi.aux_get(link.mycpv, ["SLOT"])[0]
+			rValue.add("%s/%s:%s" % (cat, pn, slot))
 		return rValue
-	
 
 class PreservedLibraryConsumerSet(LibraryConsumerSet):
 	def load(self):
-- 
cgit v1.2.3-1-g7c22