Re: Need a builtin way to run all tests faster manner

On 2017-03-13 00:35:06 -0400, Tom Lane wrote:
> Andres Freund <andres@anarazel.de> writes:
> > On 2017-03-11 22:14:07 -0500, Tom Lane wrote:
> >> This looks generally sane to me, although I'm not very happy about folding
> >> the "$(MKDIR_P) output_iso" call into pg_isolation_regress_check --- that
> >> seems weird and unlike the way it's done for the regular regression test
> >> case.
> 
> > Yea, not super happy about that either - alternatively we could fold it
> > into pg_regress.
> 
> Yeah, teaching pg_regress to auto-create the --temp-instance directory
> seems perfectly sane from here.

I was thinking about outputdir, not temp-instance.  The latter is
already created:

		/* make the temp instance top directory */
		make_directory(temp_instance);

Attached is an updated patch that creates outputdir if necessary.  This
is possibly going to trigger a time-to-check-time-to-use coverity
warning, but the rest of pg_regress does if(!exists) mkdir() type logic,
so I did the same.

Besides the pg_regress change, the only thing I've changed is to remove
the in-line "$(MKDIR_P) output_iso && \".

- Andres