[Debian-med-packaging] Bug#847234: Please help with symlink_to_dir expression (Was: Bug#847234: r-cran-rcurl: directory vs. symlink conflict: /usr/lib/R/site-library/RCurl/examples)

[Andreas Tille]

Hi,

On Tue, Dec 06, 2016 at 07:06:39PM +0100, Andreas Beckmann wrote:
> Package: r-cran-rcurl
> Version: 1.95-4.8-1
> Severity: serious
> User: debian-qa at lists.debian.org
> Usertags: piuparts
> 
> ...
> >From the attached log (usually somewhere in the middle...):
> 
> 2m19.9s INFO: dirname part contains a symlink:
>   /usr/lib/R/site-library/RCurl/examples/CIS (r-cran-rcurl) != /usr/share/doc/r-cran-rcurl/examples/CIS (?)
>     /usr/lib/R/site-library/RCurl/examples -> ../../../../share/doc/r-cran-rcurl/examples
>   /usr/lib/R/site-library/RCurl/examples/CIS/cis.R (r-cran-rcurl) != /usr/share/doc/r-cran-rcurl/examples/CIS/cis.R (?)
>     /usr/lib/R/site-library/RCurl/examples -> ../../../../share/doc/r-cran-rcurl/examples
> ...

I tried to fix this the following way.  In the Jessie package
r-cran-rcurl_1.95-4.3-1+deb8u1_amd64.deb the examples link is:


$ readlink /usr/lib/R/site-library/RCurl/examples 
../../../../share/doc/r-cran-rcurl/examples


Since in the package in unstable examples is a directory I tried
to fix the upgrade path by


$ cat debian/maintscript
symlink_to_dir /usr/lib/R/site-library/RCurl/examples ../../../../share/doc/r-cran-rcurl/examples 1.95-4.3-1


but this does not fix the situation.  Seems I have missinterpreted the manpage

   man dpkg-maintscript-helper

and I'm now asking for a hint how to do the maintainer script correctly.

Kind regards

      Andreas.

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