wishlist bug from debian tracker

---------- Forwarded message ----------
From: Trent W. Buck <trentbuck@gmail.com>
Date: Dec 24, 2007 5:11 AM
Subject: Bug#457656: Ignore boring auto-generated waf metadata
To: Debian Bug Tracking System <submit@bugs.debian.org>

Package: darcs
Version: 2.0.0~pre2-1
Severity: wishlist

waf is a build tool analogous to scons or make.

    http://code.google.com/p/waf

Commands like "./waf configure" generate ignorable metadata in
predictable locations that are unlikely to be used for non-ignorable
files.  I suggest extending the default ignore list with these
entries:

    (^|/)\.waf-[[:digit:].]+-[[:digit:]]+($|/)
    (^|/)\.lock-wscript$

Unfortunately, there are also ignorable metadata placed in an
unpredicatable location based on the --blddir switch and/or the blddir
setting in ./wscript (waf's equivalent of ./GNUmakefile).  Because the
location is unpredictable they cannot be added to the default
boringfile list.  This build directory seems to contain files with the
predictable names _cache_/, .wafpickle and .wscript-trybuild, so it
may be useful to
ignore these by default also.

PS: I have been studying waf for only a few hours, so it is possible
that waf creates other metadata that can be ignored by default.

Thanks for the report, Trent. 

I've sent a patch to add these now.