D9297: Fix #387391: Random responses from the C/C++ language support

[Victor Lamoine]

victorl added a comment.


  Just trying to add more information, the background parser fails to parse my ROS projects if the ROS packages (a directory containing a CMakeLists.txt file) are symlinks
  
  Steps to reproduce
  
  - Install ROS: http://wiki.ros.org/melodic/Installation/Ubuntu
  - Clone one of my package to your $HOME directory:
  
    git clone https://gitlab.com/InstitutMaupertuis/topics_rviz_plugin.git $HOME/topics_rviz_plugin
  
  - Create a catkin workspace with the ROS package as a symlink:
  
    mkdir -p $HOME/catkin_workspace/src
    cd $HOME/catkin_workspace/src
    catkin_init_workspace
    ln -s ../../topics_rviz_plugin
  
  
  
  - Launch KDevelop from a terminal in which ROS is sourced (usally done in `.bashrc`, see http://wiki.ros.org/melodic/Installation/Ubuntu#melodic.2BAC8-Installation.2BAC8-DebEnvironment.Environment_setup), you can also use `source /opt/ros/*/setup.bash`
  - Import the top level `CMakeLists.txt` (`$HOME/catkin_workspace/src/CMakeLists.txt`)
  - Tweak the import parameters like advised here <https://wiki.ros.org/IDEs#Building_catkin_packages>
  
  F6134877: Screenshot_20180724_150044.png <https://phabricator.kde.org/F6134877>
  
  - Let the background parser finish (shouldn't take more than a few seconds)
  - Open `topics_rviz_plugin/src/topic_info.cpp` for example, it should be correctly coloured, modify the file (add a whitespace for example) and save, the colours goes away and KDE fails to resolve every ROS include.
  
  Before editing the file
  =======================
  
  F6134887: Screenshot_20180724_150241.png <https://phabricator.kde.org/F6134887>
  
  After editing the file
  ======================
  
  F6134890: Screenshot_20180724_150248.png <https://phabricator.kde.org/F6134890>
  
  If instead of having a symlink in the catkin workspace (`$HOME/catkin_workspace/src/topics_rviz_plugin`) you put the directory and import the project again, everything works perfectly.
  My conclusion is that the symlink causes the problems but I can be wrong.

REPOSITORY
  R32 KDevelop

REVISION DETAIL
  https://phabricator.kde.org/D9297

To: vbspam, #kdevelop, mwolff
Cc: victorl, mwolff, brauch, kdevelop-devel, antismap, iodelay, vbspam, njensen, geetamc, Pilzschaf, akshaydeo, surgenight, arrowd
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