[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)

[James Cowgill]

Hi,

On 06/12/16 21:36, Andreas Tille wrote:
> 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

The version number should be the version number immediately before the
one where the dpkg-maintscript stuff is added, not when the symlink was
converted to a directory.

In this case you probably want to use "1.95-4.8-2~" (if the bug is fixed
in 1.95-4.8-2).

See dpkg-maintscript-helper(1) prior-version section.

Thanks,
James

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