Re: [PATCH 4/4] coccicheck: add indexing enhancement options

[Julia Lawall]

On Tue, 14 Jun 2016, Luis R. Rodriguez wrote:

> On Tue, Jun 14, 2016 at 07:22:03AM +0200, Julia Lawall wrote:
> > 
> > 
> > On Mon, 13 Jun 2016, Luis R. Rodriguez wrote:
> > 
> > > On Mon, Jun 13, 2016 at 09:50:15PM +0200, Julia Lawall wrote:
> > > > 
> > > > 
> > > > On Mon, 13 Jun 2016, Luis R. Rodriguez wrote:
> > > > > 
> > > > > I'll redirect stderr to stdout by default when parmap support is used then.
> > > > 
> > > > Usually I put them in different files.
> > > 
> > > We can do that as well but I would only want to deal with parmap support 
> > > case. Any preference? How about .coccicheck.stderr.$PID where PID would 
> > > be the PID of the shell script?
> > 
> > I don't understand the connection with parmap.
> 
> When parmap support is not available the cocciscript will currently
> disregard stderr, output is provided as it comes to stdout from each
> thread I guess.

Deepa's recent patch to coccicheck made apparent that Coccicheck uses 
--very-quiet, so there is standard error.

> > Originally our use of parmap made output files based on pids.  Maybe this 
> > is the default for parmap.  I found this completely unusable.  I guess one 
> > could look at the dates to see which file is the most recent one, but it 
> > seems tedious.  If you are putting the standard output in x.out, then put 
> > the standard error in x.err.
> 
> I'll use ${DIR}/coccicheck.$$.err for stderr.

What is ${DIR}? and what is $$?

julia