[Rock-dev] Typelib plugin path and debian packages

[Steffen Planthaber]

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?


Steffen




-- 
  Steffen Planthaber
  Weltraumrobotik

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