Qfyilyi

I'm debugging a C program which will listen on a localhost TCP port depending on an environment variable PORT_BIND (which unfortunately cannot be UNIX domain socket). I want to debug several processes of the program in different workspaces (code checkouts of different branches in different paths) in parallel with VSC, so I want the port on which the program is listing to be dependent on the path of the workspace, e.g. on a configuration file port_for_workspace.txt. I connect to the program with an external testsuite (source also in the repository), so it needs to read the port as well, but I have more leeway there, as I can write some wrapper around that to read the port number.

Ideas I had that lead nowhere:

• use envFile attribute of launch configuration => the attribute exists for Python or Nodejs launch configurations and but not for C/C++ launch configurations apparently.


• use the environment attribute of a C/C++ launch configuration in combination with the variable substitution ${command:CommandID} which can paste in the result of a VSC command => I could not find a command to paste the contents of a file


• use gdb setupCommands in the launch configuration to load set environment variable from gdb => I couldn't find a way to load a file in a convenience variable or to set an environment variable to the contents of a convenience variable

Any thoughts?