[CMake] CTest and X server while logged out on linux

[Tom Vercauteren]

Hi Clint,

Thanks a lot for the info. This should indeed do the trick!

I do get tons of new warnings that look like

QWARN [...] X Error: GLXUnsupportedPrivateRequest
  Extension:    146 (Uknown extension)
  Minor opcode: 16 (Unknown request)
  Resource id:  0x570

but the tests still passes. I'll try and update the wiki if everything
goes fine tonight.

Cheers,
Tom

On Wed, Mar 24, 2010 at 19:21, Clinton Stimpson <clinton at elemtech.com> wrote:
>
> How about using xvfb-run to create a virtual X session?
>
> 30 1 * * 1,2,3,4,5      tom    /usr/bin/xvfb-run /usr/bin/ctest -j4 -VV -S
> some_full_path_ctest_option.cmake -O some_full_path_log.txt
>
> Clint
>
> On Wednesday 24 March 2010 12:05:14 pm Tom Vercauteren wrote:
>> Hi all,
>>
>> Apologies if my question seems a little off-topic for this mailing
>> list. I know it's rather a linux cron question but the use case seems
>> mostly useful in a dashboard setup to me. I have not found a decent
>> answer with google yet and thought that if someone knew how to solve
>> my problem, it would be beneficial  to add it to
>>   http://www.cmake.org/Wiki/CMake_Scripting_Of_CTest#On_Unix.2FMacOSX
>>
>> Here is my scenario. I have a project that is built with cmake, tested
>> with ctest and the results are sent to cdash. The process runs every
>> night with a cron job and I am not in front of my computer at this
>> time. Some tests need a X server to complete even if they are fully
>> automated.
>>
>> If I leave my session open during the night, everything is OK.
>> However, if I log out, the unit tests fail with the following error:
>>   "cannot connect to X server :0"
>>
>> Would anyone know how to solve this problem and give the cron job
>> access to X even when I am not logged in?
>>
>> My current crontab contains the following lines
>>
>> DISPLAY=:0
>>
>> 30 1 * * 1,2,3,4,5      tom     /usr/bin/ctest -j4 -VV -S
>> some_full_path_ctest_option.cmake -O some_full_path_log.txt
>>
>>
>> My computer runs on kubuntu karmic if that's of any importance.
>>
>> From what I have read, I might need to do something with xauth, xhost,
>> or ~/.Xauthority but I must confess I am rather lost in these matters.
>>
>> Best regards,
>> Tom
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