[BUG] nvim-dap how to configure target executable?

[jrunestone]

Field	Description
Plugin	nvim-dap
Nixpkgs	unstable
Home Manager	`unstable

• I have read the FAQ and my bug is not listed there.

Description

Pretty sure this isn't a bug, but how do I do anything other than hard-coding the path to the target debug executable in the dap configuration section? The examples over at the nvim-dap repo uses a lua function. Can I not pass it like this? I'm not getting any errors but the program doesn't launch. Hard-coding a file path does work.

programs.nixvim.plugins.dap.configurations.c = [{
  name = "Debug";
  type = "gdb";
  request = "launch";
  program = ''
    function()
      return vim.fn.input('Path to executable: ', vim.fn.getcwd() .. '/', 'file')
    end
  '';
}];

Thank you.

[Bodleum]

Looking at the docs, this doesn't seem to be an option.
We could change plugins.dap.configurations.* to be attrs of anything and allow the user to configure it according to the plugin docs, similar to how cmp.settings works.

[jrunestone]

OK sounds like a good idea. I thought program already worked like that since it's not explicitly specified in the nixvim config (but type, request, name are). Hard-coding the path doesn't really lend itself to a generic configuration :)