[Checkins] SVN: zc.fsutil/branches/dev/src/zc/fsutil/fixup.py Checkng in an adaptation of a working script for fixing up an old Zope

[Jim Fulton]

Log message for revision 80247:
  Checkng in an adaptation of a working script for fixing up an old Zope
  database.  This was done with ZODB 3.2. I made changes for current
  ZODB, but these are untested. Tests wouldn't be hard to right...
  

Changed:
  A   zc.fsutil/branches/dev/src/zc/fsutil/fixup.py

-=-
Added: zc.fsutil/branches/dev/src/zc/fsutil/fixup.py
===================================================================
--- zc.fsutil/branches/dev/src/zc/fsutil/fixup.py	                        (rev 0)
+++ zc.fsutil/branches/dev/src/zc/fsutil/fixup.py	2007-09-27 18:57:56 UTC (rev 80247)
@@ -0,0 +1,55 @@
+##############################################################################
+#
+# Copyright (c) 2005 Zope Corporation and Contributors.
+# All Rights Reserved.
+#
+# This software is subject to the provisions of the Zope Public License,
+# Version 2.1 (ZPL).  A copy of the ZPL should accompany this distribution.
+# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
+# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
+# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
+# FOR A PARTICULAR PURPOSE.
+#
+##############################################################################
+"""Fixup missing oids by copying them froma backup.
+
+XXX untested
+"""
+
+import ZODB.POSException
+import ZODB.serialize
+import transaction()
+
+def fixup_what(oids, src, dest, result=None, seen=None):
+    if result is None:
+        result = []
+        seen = {}
+
+    for oid in oids:
+        if oid in seen:
+            continue
+        seen[oid] = 1
+
+        # See if it is already in the dest:                                     
+        try:
+            dest.load(oid, '')
+        except ZODB.POSException.POSKeyError:
+            pass
+        else:
+            # Already there. Skip                                               
+            continue
+
+        pickle, s = src.load(oid, '')
+        result.append((oid, pickle))
+        fixup_what(ZODB.serialize.referencesf(pickle), src, dest,
+                   result, seen)
+
+    return result
+
+def fixup(oids, src, dest):
+    t = transaction.begin()
+    dest.tpc_begin(t)
+    for oid, pickle in fixup_what(oids, src, dest):
+        dest.store(oid, '\0'*8, pickle, '', t)
+    dest.tpc_vote(t)
+    dest.tpc_finish(t)


Property changes on: zc.fsutil/branches/dev/src/zc/fsutil/fixup.py
___________________________________________________________________
Name: svn:keywords
   + Id
Name: svn:eol-style
   + native