From 3b3900b799799bea991d541c63535a12045f3bbe Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 8 Jul 2007 16:36:58 +0000
Subject: Make dblink invalidate the vardbapi caches for each merge and
 unmerge.  Don't use portage.listdir() since mtime granularity can prevent
 cachedir from invalidating it's cache properly and this redundant cache layer
 isn't needed anyway.  This should solve the intermittent failure of AUTOCLEAN
 to properly clean packages.

svn path=/main/trunk/; revision=7203
---
 pym/portage/dbapi/vartree.py | 26 +++++++++++++++++++++-----
 1 file changed, 21 insertions(+), 5 deletions(-)

diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index 2df2f841f..03db114b1 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -342,12 +342,17 @@ class vardbapi(dbapi):
 			cpc = self.cpcache[mycp]
 			if cpc[0] == mystat:
 				return cpc[1]
-		list = listdir(self.getpath(mysplit[0]), EmptyOnError=1)
+		try:
+			dir_list = os.listdir(self.getpath(mysplit[0]))
+		except EnvironmentError, e:
+			from portage.exception import PermissionDenied
+			if e.errno == PermissionDenied.errno:
+				raise PermissionDenied(e)
+			del e
+			dir_list = []
 
-		if (list is None):
-			return []
 		returnme = []
-		for x in list:
+		for x in dir_list:
 			if x.startswith("."):
 				continue
 			if x[0] == '-':
@@ -892,7 +897,7 @@ class dblink(object):
 		if not os.path.exists(self.dbdir):
 			return
 		try:
-			for x in listdir(self.dbdir):
+			for x in os.listdir(self.dbdir):
 				os.unlink(self.dbdir+"/"+x)
 			os.rmdir(self.dbdir)
 		except OSError, e:
@@ -904,6 +909,12 @@ class dblink(object):
 			print
 			sys.exit(1)
 
+		# Due to mtime granularity, mtime checks do not always properly
+		# invalidate vardbapi caches.
+		self.vartree.dbapi.mtdircache.pop(self.cat, None)
+		self.vartree.dbapi.matchcache.pop(self.cat, None)
+		self.vartree.dbapi.cpcache.pop(self.mysplit[0], None)
+
 	def clearcontents(self):
 		"""
 		For a given db entry (self), erase the CONTENTS values.
@@ -1792,6 +1803,11 @@ class dblink(object):
 		self.dbdir = self.dbpkgdir
 		self.delete()
 		_movefile(self.dbtmpdir, self.dbpkgdir, mysettings=self.settings)
+		# Due to mtime granularity, mtime checks do not always properly
+		# invalidate vardbapi caches.
+		self.vartree.dbapi.mtdircache.pop(self.cat, None)
+		self.vartree.dbapi.matchcache.pop(self.cat, None)
+		self.vartree.dbapi.cpcache.pop(self.mysplit[0], None)
 		contents = self.getcontents()
 
 		#write out our collection of md5sums
-- 
cgit v1.2.3-1-g7c22