[Rd] Re: [R] case-insensitive ZIP
Prof Brian Ripley
ripley at stats.ox.ac.uk
Tue Nov 2 09:45:12 CET 2004
On Tue, 2 Nov 2004, Uwe Ligges wrote:
> Primer, Jeremy (FID) wrote:
> > A development note:
> > In the function "install.packages", it would be helpful to those of us
> > who have atypical installations and install manually from ZIP files to
Perhaps you could tell us why you do this? Where do you get `contributed
zipfiles' that are actually `ZIPfiles', especially as CRAN has .zip files
you could get instead? Or is the problem in the way you get them?
> > have
> > pkgnames <- sub("\\.zip$", "", pkgnames)
> > replaced with
> > pkgnames <- sub("\\.zip$", "", pkgnames, ignore.case = TRUE)
> > because the contributed zipfiles are ZIPfiles. The routine did not work
> > for me out of the box.
> [moved to R-devel]
> Hmmm. Recent versions of R require correctly installed versions (using R
> CMD INSTALL) of the packages. It is hard work to get a file called *.ZIP
> (rather than *.zip) that contains a valid binary package for Windows.
> I'd vote against such a change, since the recent behaviour suggests
> perfectly well that the file probably won't work.
Nothing stops people with `atypical installations' amending functions to
suit their atypicality, but it is usually better to fix your local
problems that expect your tools to workaround them.
[Analogously, R CMD INSTALL will not install .tgz files on Unix, even
though some people distribute them: they are (equally) not a supported
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)
1 South Parks Road, +44 1865 272866 (PA)
Oxford OX1 3TG, UK Fax: +44 1865 272595
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