It seems that excl_paths is not working

[zoziha]

Description

I mainly use Windows + VS Code + Modern Fortran + fortls + fprettify + ford.

Recently, since some time, fortls does not seem to handle correctly the excl_paths which I set in settings.json.

I have a replication example here, when I click on the variable a in app/main.f90 and go to the definition, it will jump to doc/src/mod.f90(ford output_dir: doc) instead of src/mod.f90.

Here is my settings.json:

{
    "fortran.fortls.excludeDirectories": [
        "doc/**"
    ],
}

I had tried to mention this as an issue, but it seems like the requirements for writing an issue are more complicated.
Does the excl_paths failure actually exist, or is it a problem with my settings? Thanks!

[gnikit]

Apologies for taking some time to get back to you @zoziha.
You have stumbled onto a bug in fortls/Modern Fortran vscode. What is happening as far as I can tell is that when you open app/main.f90 fortls parses your workspace excluding docs/.
However, the moment you open a file from within the excluded directory docs/ then fortls parses that that file too and conflicting definitions get overwritten.

On a high level, what should be happening is this situation is discard the states of the excluded files when they are closed.
Practically, how that would be done is probably a more complicated matter.

Other than closing the source files from the excluded directories and restarting the language server (via the Command Palette) I don't have a very good temporary fix for this. The matter definitely needs further investigation.

[zoziha]

Thank you for your reply, @gnikit !

I checked and it seems that when I open app/main.f90, the source files for both doc/src and src are parsed:

In my reproduced example, there are 5 source files in total:

• app/main.f90;
• doc/src/main.f90;
• doc/src/mod.f90;
• src/mod.f90;
• test/check.f90.

3 source files (+ 2 source files in doc/src)

When I open app/main.f90, the status bar tells me that fortls is parsing 5 source files instead of 3.

Status bar information