[Rd] zip.unpack() crashes R (PR#2818)

Henrik Bengtsson hb at maths.lth.se
Fri Apr 25 19:36:17 MEST 2003

> -----Original Message-----
> From: r-devel-bounces at stat.math.ethz.ch 
> [mailto:r-devel-bounces at stat.math.ethz.ch] On Behalf Of Prof 
> Brian Ripley
> Sent: den 24 april 2003 18:49
> To: hb at maths.lth.se
> Cc: r-devel at stat.math.ethz.ch; R-bugs at biostat.ku.dk
> Subject: Re: [Rd] zip.unpack() crashes R (PR#2818)
> On Tue, 22 Apr 2003 hb at maths.lth.se wrote:
> > Full_Name: Henrik Bengtsson
> > Version: R v1.7.0
> > OS: WinXP Pro
> > Submission from: (NULL) (
> > 
> > 
> > There seems to be an upper limit of the number of files 
> (approx 1000 
> > files) a
> Yes, 500 topics.

> > zip-file can contain when unpacking it with zip.unpack(). 
> This results 
> > in an R crash. This bug is urgent since install.packages() 
> relies on 
> > zip.unpack() and too big packages/bundles won't install with the 
> > current R v1.7.0 for Windows.
> Whyever should a R package have over 1000 files?
> I think you are not understanding how to use the --use-zip options.

My --use-zip was indeed broken (HTML Help Workshop was not in the PATH
anymore -> hhc not found -> make partly failed -> use-zip was not ran,
but package was still created but without the *.chm file). Fixing that
brought down the number of files I have quite a bit. However, one can
still not do anything about all the HTML files.

You are right, even with a large number of HTML help files, a package
will probably not contain > 500 files in total in --use-zip is used, but
a bundle may certainly do it. Using --use-zip my bundle contains 580
files and then I still have a lot of documentation left to do. If
bundles will still be around (I have heard rumours packages will only be
supported), then I think 500 files is a too small limit.

> Also, look at options("unzip").

I am aware of the option to use an external unzipper.
> Why is this bug `urgent':  it has been around for 14 months, 
> and no one else has encountered a problem?

The moment I sent it I realized that 'urgent' sounded too requesting, I
just wanted to point out that I believe installations of package/bundles
should never be broken since it is such a basic functionality needed.

Thanks for your help

Henrik Bengtsson

> -- 
> 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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