[Rd] Re: [R] case-insensitive ZIP

[(Ted Harding)]

On 02-Nov-04 Prof Brian Ripley wrote:
> [...]
> [Analogously, R CMD INSTALL will not install .tgz files on Unix,
> even though some people distribute them: they are (equally) not
> a supported format.]

Hmmm.
Maybe I'm out of date (R 1.8.0) but my Linux /usr/lib/R/bin/INSTALL
has:

      if test -f "${1}"; then
        pkgname=`basename "${1}"`
        ## Also allow for 'package.tgz' ...
        pkgname=`basename "${pkgname}" .tgz`
        pkgname=`echo "${pkgname}" | sed 's/_.*//'`
        ## ...
        gzip -dc "${1}" | (cd "${tmpdir}" && ${TAR} -mxf -)

which looks to me as though it should cope fine with *.tgz as well
as with *.tar.gz, since the 'gzip -dc' doesn't care what the name
"${1}" is, and the ${TAR} is getting the unzipped output on stdin.

And in any case it looks as though 'pkgname' will come out right
whatever follows the first "_." in the tar file name (so long as
the file name is of the form pkgname_.*).

Best wishes,
Ted.


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Date: 02-Nov-04                                       Time: 10:03:26
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