From: Zac Medico <zmedico@gentoo.org>
Date: Sun, 5 Oct 2008 04:12:32 +0000 (-0000)
Subject: Fix PreservedLibsRegistry.store() so that it only rewrites the data file when
X-Git-Tag: v2.2_rc12~32
X-Git-Url: http://git.tremily.us/?a=commitdiff_plain;h=eda6f347a9ea526815e323493a82d5ceb8524233;p=portage.git

Fix PreservedLibsRegistry.store() so that it only rewrites the data file when
something has changed.

svn path=/main/trunk/; revision=11626
---

diff --git a/pym/portage/dbapi/vartree.py b/pym/portage/dbapi/vartree.py
index becbacc17..b66bdb114 100644
--- a/pym/portage/dbapi/vartree.py
+++ b/pym/portage/dbapi/vartree.py
@@ -65,12 +65,13 @@ class PreservedLibsRegistry(object):
 				raise PermissionDenied(self._filename)
 			else:
 				raise e
-		
+		self._data_orig = self._data.copy()
 	def store(self):
 		""" Store the registry data to file. No need to call this if autocommit
 		    was enabled.
 		"""
-		if os.environ.get("SANDBOX_ON") == "1":
+		if os.environ.get("SANDBOX_ON") == "1" or \
+			self._data == self._data_orig:
 			return
 		try:
 			f = atomic_ofstream(self._filename)