Description:

tailor.py is a tool to migrate changesets between CVS, Subversion, and
darcs repositories.

This script makes it easier to keep the upstream changes merged in
a branch of a product, storing needed information such as the upstream
URI and revision in special properties on the branched directory.

The following ascii-art illustrates the usual scenario::

+------------+ +------------+
+--------------+ | Immutable | | Working |
| Upstream CVS |-------->| darcs |----------->| darcs |
| repository | tailor | repository | darcs pull | repository |
+--------------+ +------------+ +------------+
|^
||
||
v|
User

Ideally you should be able to swap and replace "CVS server" and "darcs
repository" with any combination of `CVS`, `Subversion` and `darcs`.