[Rd] Small enhancement for CMD check

[Prof Brian Ripley]

Unfortunately it would need a major rewrite, and either piping output 
through a pager (surely the standard Unix way to handle this) or 
redirecting to a file is the simplest way to do this.

R CMD check calls a process to run .runPackageTestsR, which calls 
further processes to run each test and diff the results.  We could 
simply capture stdout/stderr of .runPackageTestsR, but then one would 
have to wait until all the tests had run before seeing any output, 
which may mean waiting hours -- that was decided to be too 
undesirable.

On Fri, 25 Feb 2011, Terry Therneau wrote:

> It would be nice if the 00check.log file also included this part of the
> output:
>  Running ‘bladder.R’
>  Comparing ‘bladder.Rout’ to ‘bladder.Rout.save’ ... OK
>  Running ‘book1.R’
>  Comparing ‘book1.Rout’ to ‘book1.Rout.save’ ... OK
>  Running ‘book2.R’
>  Comparing ‘book2.Rout’ to ‘book2.Rout.save’ ... OK
>
> etc.
>
>  The survival package has enough test scripts that it exceeds my
> terminal's scroll bar; I have to either watch closely or run
> R CMD check survival >& mylog

The most prolix are
  survival portfolio    matlab  kappalab  spatstat
        68        36        32        30        28
        BB    HSAUR2    fields     pcalg     aster
        26        22        22        22        21

The remedy seems to be to group the tests into larger units.

> Terry Therneau

-- 
Brian D. Ripley,                  ripley at stats.ox.ac.uk
Professor of Applied Statistics,  http://www.stats.ox.ac.uk/~ripley/
University of Oxford,             Tel:  +44 1865 272861 (self)
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