From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 7 Dec 2006 22:23:57 +0000 (-0000)
Subject: Enable FakeVartree to populate the virtuals so that the vdb doesn't have to be scanne... 
X-Git-Tag: v2.1.2~373
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=70ba8f079933e40497649c419898bb2b2e1ce81d;p=portage.git

Enable FakeVartree to populate the virtuals so that the vdb doesn't have to be scanned separately.

svn path=/main/trunk/; revision=5207
---

diff --git a/bin/emerge b/bin/emerge
index 44a9a6f80..88dea39c5 100755
--- a/bin/emerge
+++ b/bin/emerge
@@ -699,7 +699,7 @@ class DepPriority(object):
 			return "medium"
 		return "soft"
 
-class FakeVartree(object):
+class FakeVartree(portage.vartree):
 	"""This is implements an in-memory copy of a vartree instance that provides
 	all the interfaces required for use by the depgraph.  The vardb is locked
 	during the constructor call just long enough to read a copy of the
@@ -718,7 +718,8 @@ class FakeVartree(object):
 		try:
 			if os.access(vdb_path, os.W_OK):
 				vdb_lock = portage_locks.lockdir(vdb_path)
-			mykeys = ["SLOT", "USE", "IUSE", "DEPEND", "RDEPEND", "PDEPEND"]
+			mykeys = ["SLOT", "PROVIDE", "USE", "IUSE",
+				"DEPEND", "RDEPEND", "PDEPEND"]
 			real_dbapi = real_vartree.dbapi
 			for cpv in real_dbapi.cpv_all():
 				metadata = dict(zip(mykeys, real_dbapi.aux_get(cpv, mykeys)))
@@ -726,6 +727,10 @@ class FakeVartree(object):
 		finally:
 			if vdb_lock:
 				portage_locks.unlockdir(vdb_lock)
+		# Populate the old-style virtuals using the cached values.
+		if not self.settings.treeVirtuals:
+			self.settings.treeVirtuals = portage_util.map_dictlist_vals(
+				portage.getCPFromCPV, self.get_all_provides())
 
 class depgraph:
 
@@ -752,8 +757,6 @@ class depgraph:
 				self.trees[myroot][tree] = trees[myroot][tree]
 			self.trees[myroot]["vartree"] = \
 				FakeVartree(trees[myroot]["vartree"])
-			# Make sure the virtuals are populated before cloning.
-			trees[myroot]["vartree"].settings.getvirtuals()
 			self.pkgsettings[myroot] = portage.config(
 				clone=self.trees[myroot]["vartree"].settings)
 			self.pkg_node_map[myroot] = {}
diff --git a/pym/portage.py b/pym/portage.py
index 9881d227d..13c851ab0 100644
--- a/pym/portage.py
+++ b/pym/portage.py
@@ -1853,7 +1853,7 @@ class config:
 			self.dirVirtuals[virt].reverse()
 
 		# Repoman does not use user or tree virtuals.
-		if self.local_config:
+		if self.local_config and not self.treeVirtuals:
 			temp_vartree = vartree(myroot, None,
 				categories=self.categories, settings=self)
 			# Reduce the provides into a list by CP.
@@ -4930,11 +4930,9 @@ class vartree(packagetree):
 	def get_provide(self,mycpv):
 		myprovides=[]
 		try:
-			mylines = grabfile(self.root+VDB_PATH+"/"+mycpv+"/PROVIDE")
+			mylines, myuse = self.dbapi.aux_get(mycpv, ["PROVIDE","USE"])
 			if mylines:
-				myuse = grabfile(self.root+VDB_PATH+"/"+mycpv+"/USE")
-				myuse = string.split(string.join(myuse))
-				mylines = string.join(mylines)
+				myuse = myuse.split()
 				mylines = flatten(portage_dep.use_reduce(portage_dep.paren_reduce(mylines), uselist=myuse))
 				for myprovide in mylines:
 					mys = catpkgsplit(myprovide)