This project is a collection of contents manifest-related tools:

* olpc-contents-create
  Generates .xo-files files in each directory, or a single unified contents
  file.

* olpc-contents-verify
  Checks the .xo-files files/unified contents against a directory tree.

* olpc-contents-clean
  Deletes any files from the directory tree which aren't mentioned in the
  .xo-files files/unified contents.

* irsync
  Use .xo-files files to speed up rsync, by only rsync'ing directories
  with changed contents.

* rdiff
  Generate/apply recursive binary diffs guided by .xo-files files and using
  bsdiff for bzip2 compression and deltas.
  (This can use the Pyrex helper 'fastblocks.pyx' to more speedily discover
  near-duplicates when generating diffs with the '-9' option.)

* rclone
  Create hard-linked duplicates of a directory tree, which can be used as the
  target of an update or patch without disturbing the original.
  (More or less the same thing as 'cp -rla')