Re: [PATCH] test-lib.sh - cygwin does not have usable FIFOs

From: Torsten Bögershausen <tboegi@web.de>
Date: Jul 7, 2013, 09:14 UTC
Message-ID: <51D93164.8030202@web.de>
In-Reply-To: <20130707005558.GI30132@google.com>

On 2013-07-07 02.55, Jonathan Nieder wrote:

Show 16 quoted lines

> Mark Levedahl wrote:
> 
>> Do not use FIFOs on cygwin, they do not work. Cygwin includes
>> coreutils, so has mkfifo, and that command does something. However,
>> the resultant named pipe is known (on the Cygwin mailing list at
>> least) to not work correctly.
> 
> Hm.  How would you recommend going about writing a script that takes
> output from a command, transforms it, and then feeds it back into
> that command's input?  Are sockets a more reliable way to do this kind
> of IPC on Cygwin?
> 
> See reinit_git and try_dump from t9010-svn-fe.sh for context.
> 
> Thanks,
> Jonathan

t9010 needs PIPE in most test cases as a prerequisite. And if PIPE isn't available, the tests can not be run.

Are you suggesting to replace the named pipes with a TCP socket?

Disabling PIPE under cygwin seems to be the right thing to do, or do I miss something ?

/Torsten