[Rock-dev] Typelib plugin path and debian packages

[Thomas Roehr]

On 16.01.2017 16:29, Steffen Planthaber wrote:
> Hi,
>
> Sebastian and I found an error and we are unsure at which point we 
> should solve it.
>
> Typelib can set its plugin path by an environment variable. Since the 
> 16. December the variable is set by the cmake_package definition in 
> orocos.packages (using the install path for the package).
>
> Now when using the debian package installation we are testing at DFKI, 
> this folder does not exist. The install path is the same, but the 
> insallation is overriden by an installation using apt-get to 
> /opt/rock[...], so the TYPELIB_PLUGIN_PATH is not correct anymore and 
> the install/lib/typelib folder does not exist.
>
> Sadly boost::filesystem throws an exception which is not catched when 
> the folder does not exist and orogen fails to generate.
>
> So just adding the /opt path to the variable does not help, orogen still 
> stops on the exception.
>
>
> There are several options to fix the issue:
>
> 1. Set the TYPELIB_PLUGIN_PATH properly with only existing folders
>    * aka: make the overriding mechanism for deb packages better to the 
> cmake_package code is not evaluated
>
> 2. Make TYPELIB_PLUGIN_PATH tolerant against missing folders and just 
> add the path to the .dep plugins (allow wrong paths in env)
>
> 3. Create the folder and add the path of the .deb package (currently 
> easiest workaround)
>
>
> IMO No.1 ist the best solution.
>
> What do you think?

I would adapt the init.rb of the rock.osdeps package to extend the
plugin path (with the global one) and create the missing local
installation folder.
Assuming TYPELIB_PLUGIN_PATH does handle the setting of multiple
directories.


>
>
> Steffen
>
>
>
>


-- 
Thomas Röhr (M.Sc.)
Space Robotics

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