How to avoid version restrictions for JS libraries (Was: Bug#820879: r-cran-shiny: uninstallable in sid: Depends: libjs-jquery (< 1.11.3+dfsg.0~) but 1.12.3-1 is to be installed)

[Andreas Tille <andreas@an3as.eu>]

Hi,

via this bug I learned (the hard way) that a

   Depends: ${js:Depends}

will be resolved into

   libjs-jquery (<< 1.11.3+dfsg.0~), libjs-jquery (>= 1.11.3+dfsg)

(for instance) in the final package.  I have no reason to assume that
the actual version that was available at package build time is the only
valid dependency for my package.  So it seems unadvisable to use
${js:Depends} depends at all to avoid continuous uploading of the
package (depending from 9 different libjs-* packages) if any of its
libjs-* was uploaded with a new version.

I wonder what the idea behind this resulution of the ${js:Depends}
would be since I have the feeling that this is not sensible in the
most practical cases.

Am I missing something?

Kind regards

      Andreas.

On Wed, Apr 13, 2016 at 12:33:41PM +0200, Andreas Beckmann wrote:
> Package: r-cran-shiny
> Version: 0.13.1+dfsg-1
> Severity: serious
> User: debian-qa@lists.debian.org
> Usertags: piuparts
> 
> Hi,
> 
> during a test with piuparts I noticed your package is no longer
> installable in sid:
> 
> 1m45.1s DEBUG: Starting command: ['chroot', '/tmp/piupartss/tmpmbw__d', 'apt-get', '-y', 'install', 'r-cran-shiny']
> 1m45.6s DUMP: 
>   Reading package lists...
>   Building dependency tree...
>   Reading state information...
>   Some packages could not be installed. This may mean that you have
>   requested an impossible situation or if you are using the unstable
>   distribution that some required packages have not yet been created
>   or been moved out of Incoming.
>   The following information may help to resolve the situation:
>   
>   The following packages have unmet dependencies:
>    r-cran-shiny : Depends: libjs-jquery (< 1.11.3+dfsg.0~) but 1.12.3-1 is to be installed
>   E: Unable to correct problems, you have held broken packages.
> 
> 
> Cheers,
> 
> Andreas
> 
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