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 becbacc175db345f653e00ef4756c7fe0969c31f..b66bdb1144b65d81ab9c138339697e28f0412e22 100644 (file)
--- 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)