From ec09b90690ab19219f11bbae9a2397d0133e3322 Mon Sep 17 00:00:00 2001
From: Zac Medico <zmedico@gentoo.org>
Date: Thu, 26 Jun 2008 06:43:47 +0000
Subject: [PATCH] Also use a separate proxy type for portage.mtimedb since it's
 independent from the portdb and settings.

svn path=/main/trunk/; revision=10800
---
 pym/portage/__init__.py | 39 ++++++++++++++++++++++++++++++++-------
 1 file changed, 32 insertions(+), 7 deletions(-)

diff --git a/pym/portage/__init__.py b/pym/portage/__init__.py
index bcb2b7afb..516be638d 100644
--- a/pym/portage/__init__.py
+++ b/pym/portage/__init__.py
@@ -6930,11 +6930,31 @@ class _PortdbProxy(portage.util.ObjectProxy):
 
 	def _get_target(self):
 		init_legacy_globals()
-		global db, portdb, root
-		if portdb is self:
+		global db, portdb, root, _portdb_initialized
+		if not _portdb_initialized:
 			portdb = db[root]["porttree"].dbapi
+			_portdb_initialized = True
 		return portdb
 
+class _MtimedbProxy(portage.util.ObjectProxy):
+	"""
+	The mtimedb is independent from the portdb and other globals.
+	"""
+
+	def __init__(self, name):
+		portage.util.ObjectProxy.__init__(self)
+		object.__setattr__(self, '_name', name)
+
+	def _get_target(self):
+		global mtimedb, mtimedbfile, _mtimedb_initialized
+		if not _mtimedb_initialized:
+			mtimedbfile = os.path.join("/",
+				CACHE_PATH.lstrip(os.path.sep), "mtimedb")
+			mtimedb = MtimeDB(mtimedbfile)
+			_mtimedb_initialized = True
+		name = object.__getattribute__(self, '_name')
+		return globals()[name]
+
 # Initialization of legacy globals.  No functions/classes below this point
 # please!  When the above functions and classes become independent of the
 # below global variables, it will be possible to make the below code
@@ -6943,8 +6963,6 @@ class _PortdbProxy(portage.util.ObjectProxy):
 # code that is aware of this flag to import portage without the unnecessary
 # overhead (and other issues!) of initializing the legacy globals.
 
-_globals_initialized = False
-
 def init_legacy_globals():
 	global _globals_initialized
 	if _globals_initialized:
@@ -6976,8 +6994,6 @@ def init_legacy_globals():
 
 	root = settings["ROOT"]
 
-	mtimedbfile = os.path.join("/", CACHE_PATH.lstrip(os.path.sep), "mtimedb")
-	mtimedb = MtimeDB(mtimedbfile)
 
 	# ========================================================================
 	# COMPATIBILITY
@@ -7007,9 +7023,18 @@ def init_legacy_globals():
 # use within Portage.  External use of this variable is unsupported because
 # it is experimental and it's behavior is likely to change.
 if "PORTAGE_LEGACY_GLOBALS" not in os.environ:
+
+	_mtimedb_initialized = False
+	mtimedb     = _MtimedbProxy("mtimedb")
+	mtimedbfile = _MtimedbProxy("mtimedbfile")
+
+	_portdb_initialized  = False
 	portdb = _PortdbProxy()
+
+	_globals_initialized = False
+
 	for k in ("db", "settings", "root", "selinux_enabled",
-		"mtimedbfile", "mtimedb", "archlist", "features", "groups",
+		"archlist", "features", "groups",
 		"pkglines", "thirdpartymirrors", "usedefaults", "profiledir",
 		"flushmtimedb"):
 		globals()[k] = _LegacyGlobalProxy(k)
-- 
2.26.2