svn commit: r888835 - in /subversion/branches/obliterate-like-deltify: ./ BRANCH-README

[ph...@apache.org]

Author: philip
Date: Wed Dec  9 15:32:56 2009
New Revision: 888835

URL: http://svn.apache.org/viewvc?rev=888835&view=rev
Log:
Create a branch for some experimental obliterate code

Added:
    subversion/branches/obliterate-like-deltify/
      - copied from r888834, subversion/trunk/
    subversion/branches/obliterate-like-deltify/BRANCH-README

Added: subversion/branches/obliterate-like-deltify/BRANCH-README
URL: http://svn.apache.org/viewvc/subversion/branches/obliterate-like-deltify/BRANCH-README?rev=888835&view=auto
==============================================================================
--- subversion/branches/obliterate-like-deltify/BRANCH-README (added)
+++ subversion/branches/obliterate-like-deltify/BRANCH-README Wed Dec  9 15:32:56 2009
@@ -0,0 +1,10 @@
+This is an experimental BDB obliterate based on the deltify code. It
+replaces a file's rep with an empty delta to the previous rep, thus
+effectively making the file contents equal to the previous version
+of the file.
+
+This is a partial implementation of the cc1 model in notes/obliterate,
+restricted to file text obliteration.  It could probably be extended
+to file and directory properties, but anything that changes the tree
+structure or anything that needs new node-rev-ids is not going to
+work.