[WIP] Extraction

[adrianparvino]

No description provided.

[lapp0]

What work remains here?

[lapp0]

I think this error may be filed under this PR. The error is due to a module being imported by configuration.nix, but not all necessary arguments are passed to it. Let me know if you think this should be handled in a separate PR though.

Traceback (most recent call last):
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/bin/.nix-gui-wrapped", line 9, in <module>
    sys.exit(main())
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/main.py", line 68, in main
    run_program()
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/main.py", line 46, in run_program
    statemodel = state_model.StateModel()
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/state_model.py", line 27, in __init__
    self.option_tree = api.get_option_tree()
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/api.py", line 19, in get_option_tree
    parser.get_all_option_values(os.environ['CONFIGURATION_PATH'])
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/parser.py", line 85, in get_all_option_values
    result = get_all_option_values(import_path.eval_path())
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/parser.py", line 64, in get_all_option_values
    for attr_loc, (key_node, value_node) in get_key_value_nodes(module_path, tree).items():
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/parser.py", line 111, in get_key_value_nodes
    for attribute, attr_data in nix_eval.get_modules_defined_attrs(module_path).items():
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/utils/cache.py", line 74, in wrapper
    res = function(*args, **kwargs)
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/nix_eval.py", line 126, in get_modules_defined_attrs
    leaves = nix_instantiate_eval(
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/nix_eval.py", line 50, in nix_instantiate_eval
    return nix_instantiate_eval(expr, strict, show_trace=True)
  File "/nix/store/xx3gpjairbyhqf3i0g76jyrf722r30pr-python3.9-nix-gui-0.1.0/lib/python3.9/site-packages/nixui/options/nix_eval.py", line 56, in nix_instantiate_eval
    raise NixEvalError(err_str)
nixui.options.nix_eval.NixEvalError: NixEvalError("""
error: anonymous function at /etc/nixos/system-specific.nix:1:1 called without required argument 'hardware'

       at «string»:3:12:

            2| let
            3|   config = import /etc/nixos/./system-specific.nix {config = {}; pkgs = import <nixpkgs> {}; lib = import <nixpkgs/lib>; modulesPath = /etc/nixos/.;};
             |            ^
            4|   closure = builtins.tail (builtins.genericClosure {

       … while evaluating the attribute 'value'

       at «string»:5:54:

            4|   closure = builtins.tail (builtins.genericClosure {
            5|     startSet = [{ key = builtins.toJSON []; value = {value = config;}; }];
             |                                                      ^
            6|     operator = {key, value}: builtins.filter (x: x != null) (

       … while evaluating 'operator'

       at «string»:6:16:

            5|     startSet = [{ key = builtins.toJSON []; value = {value = config;}; }];
            6|     operator = {key, value}: builtins.filter (x: x != null) (
             |                ^
            7|       if

       … from call site

""")

[lapp0]

Reporting here that #99 doesn't retrieve the position of submodule attributes.

For example, in the sample configuration.nix, fileSystems."/".options is defined on line 159, however only the position of fileSystems returned by get_modules_defined_attrs.

Similarly, the position of users.extraUsers is included (and I think it's fine to include the position of the submodules themselves), however the position of users.extraUsers.isNormalUser isn't.

Perhaps this should be resolved in this PR as well? I've written a test case that can easily be turned on to validate recursion into submodules: https://github.com/nix-gui/nix-gui/pull/107/files#diff-f42c1d3da4448ee60fd93e423d7730962edbdba0e529432f7f99cdb960972a34R77-R104