I'm not sure if this is still possible in the latest release, but if:

1) you do a darcs remove and then a darcs add of a filename that  
differs in case only
2) you record the patch and darcs happesn to place the addfile before  
the rmfile in the patch
3) the patch will fail when darcs get is done to a case insensitive  
file system (i.e. Linux to Windows over ssh)

Suggest ordering rmfiles above addfiles in the patch when the  
filename differs in case.

Dave

------
David K. Hess
Verscend Technologies, Inc.
dhess@verscend.com
214-684-5448

This is part of a general issue.  I suggest that future such bugs refer to this one.

Dave: I'm marking this in-progress, but don't get your hopes up; I'm only using
it to mean that we (roughly) know how to fix it.

Quoting David Roundy (issue404):
I believe this is a known issue, when the history of the repository
contains states that can't be represented on case-insensitive filesystems.
We plan to (some day) implement a new kind of database-stored pristine
cache, which should make this work.

Is this "resolved-in-unstable", now that "pristine.hashed" no longer stores
regular files? 

dhess, if you are still are still out there, would you be able to test with a
darcs built from the unstable repo?

On Mon, Jan 07, 2008 at 04:52:16AM -0000, Mark Stosberg wrote:
> Is this "resolved-in-unstable", now that "pristine.hashed" no longer stores
> regular files? 

Indeed, it should be resolved--users need only use --hashed or --darcs-2
formats.
-- 
David Roundy
Department of Physics
Oregon State University

I just tried the following:

darcs --hashed --verbose --debug-verbose http://darcs.haskell.org/ghc

with darcs-2.  It failed in the same way that darcs-1 fails with this repository:

darcs failed:  File './ghc/includes/RtsTypes.h' already exists!

When attempting to apply patch 11 of 17865.

There already exists a file named "ghc/includes/rtsTypes.lh".

So perhaps this bug isn't fixed?

The same thing happens on Mac and on Windows.

Sorry -- the command that I tried was of course:

darcs get --hashed --verbose --debug-verbose http://darcs.haskell.org/ghc

Thanks for the test, Zooko! I think I've just fixed this.  Could you give it
another shot in an hour or so (or any time later than that, but after the
patches arrive anyhow)? Thanks!

On Jan 31, 2008, at 9:14 AM, David Roundy wrote:

> Thanks for the test, Zooko! I think I've just fixed this.  Could  
> you give it
> another shot in an hour or so (or any time later than that, but  
> after the
> patches arrive anyhow)? Thanks!

Well, I can try it on Mac, where I can build darcs myself, but I  
haven't yet been able to build darcs myself on Windows (given that I  
want to build it using a ghc that I've built myself after first  
porting ghc to cygwin...).

So I encountered this bug in the attempt to get ghc so that I could  
port it to cygwin, actually.  :-)

--Z

Yikes.  Porting ghc to cygwin sounds scary.  But testing this on the mac should
be sufficient to close the bug.  Thanks, Zooko! (And good luck compiling ghc!)

This bug is believed to be resolved, according to David. Further testing on a
case insensitive file-system would still be helpful.