Experimental Patchwork setup

[Jeremy Kerr]

Hi Paolo,

> The hash would be different for git diff and svn diff due to the
> different headers.

The headers are not included in the hash. However, the filenames will need to 
be the same - patchwork expects '-p1' patches, but normalises the top-level 
directory.

For example, at http://patchwork.ozlabs.org/patch/55140/

--- gcc/config/rs6000/e500.h    (revision 160245)
+++ gcc/config/rs6000/e500.h    (working copy)

The parser normalises this to:

--- a/config/rs6000/e500.h
+++ b/config/rs6000/e500.h

which may or may not be what you want here (svn outputs -p0?).

The only difficulty is that the parser does not specify an order for the files 
in a patch; I believe git orders the file changes alphabetically by filename, 
but svn does not. This may cause different hashes.

Cheers,


Jeremy