patch: use temporary files to handle intermediate copies git patches may require copies to be handled out-of-order. For instance, take the following sequence: * modify a * copy a into b Here, we have to generate b from a before its modification. To do so, applydiff() was scanning for copy metadata and performing the copies before processing the other changes in-order. While smart and efficient, this approach complicates things by handling file copies and file creations at different places and times. While a new file must not exist before being patched a copied file already exists before applying the first hunk. Instead of copying the files at their final destination before patching, we store them in a temporary file location and retrieve them when patching. The filestore always stores file content in real files but nothing prevents adding a cache layer. The filestore class was kept separate from fsbackend for at least two reasons: - This class is likely to be reused as a temporary result store for a future repository patching call (entries just have to be extended to contain copy sources). - Delegating this role to backends might be more efficient in a repository backend case: the source files are already available in the repository itself and do not need to be copied again. It also means that third-parties backend would have to implement two other methods. If we ever decide to merge the filestore feature into backend, a minimalistic approach would be to compose with filestore directly. Keep in mind this copy overhead only applies for copy/rename sources, and may even be reduced to copy sources which have to handled ahead of time. [ original upstream message ]

$Id$

keyword extension for Mercurial SCM
===================================

CAVEAT: Please use the keyword extension distributed with
Mercurial > 1.0.2!
For Mercurial 0.9.2 to 1.0.2 install the 0.9.2compat branch.

The default and stable branches are meant for development.

install
-------

Run "python setup.py install".
See also "pyton setup.py --help".
Then add the line:

[extensions]
keyword = /path/to/hgkw/keyword.py

to your hgrc, where /path/to/ is somewhere in your $PYTHONPATH.


first steps and online help
---------------------------

$ hg help keyword 
$ hg kwdemo


testing
-------

$ cd tests
$ ./run-tests.py --with-hg=/path/to/hg