plugin/efmls-configs: init + tests (#542)

helpers/default.nix

@@ -1,5 +1,6 @@
 pkgs: rec {
   rust-analyzer-config = pkgs.callPackage ./rust-analyzer {};
+  efmls-configs-tools = pkgs.callPackage ./efmls-configs {};
   autogenerated-configs = pkgs.callPackage ({stdenv}:
     stdenv.mkDerivation {
       pname = "autogenerated-configs";
@@ -11,6 +12,7 @@ pkgs: rec {
       installPhase = ''
         mkdir -p $out
         cp ${rust-analyzer-config}/share/* $out
+        cp ${efmls-configs-tools}/share/* $out
       '';
     }) {};
 }

helpers/efmls-configs/default.nix

@@ -0,0 +1,37 @@
+{
+  stdenv,
+  python3,
+  vimPlugins,
+}: let
+  extract = stdenv.mkDerivation {
+    pname = "extract_efmls_tools";
+    version = "1";
+
+    src = ./extract.py;
+
+    dontUnpack = true;
+    dontBuild = true;
+
+    buildInputs = [python3];
+
+    installPhase = ''
+      mkdir -p $out/bin
+      cp $src $out/bin/extract_efmls_tools.py
+    '';
+  };
+in
+  stdenv.mkDerivation {
+    pname = "efmls-configs-tools";
+    inherit (vimPlugins.efmls-configs-nvim) version src;
+
+    nativeBuildInputs = [extract];
+
+    buildPhase = ''
+      extract_efmls_tools.py ./lua/efmls-configs > efmls-configs-tools.json
+    '';
+
+    installPhase = ''
+      mkdir -p $out/share
+      cp efmls-configs-tools.json $out/share
+    '';
+  }

helpers/efmls-configs/extract.py

@@ -0,0 +1,25 @@
+#!/usr/bin/env python
+
+import sys
+import os
+import json
+
+tool_path = sys.argv[1]
+
+tools = {
+    "linters": {},
+    "formatters": {},
+}
+
+for kind in ["linters", "formatters"]:
+    for file in os.listdir(tool_path + "/" + kind):
+        tool_name = file.removesuffix(".lua")
+        languages = []
+        with open(tool_path + "/" + kind + "/" + file) as f:
+            for line in f.readlines():
+                if line.startswith("-- languages:"):
+                    languages = line.split(":")[1].strip().split(",")
+                    break
+        tools[kind][tool_name] = languages
+
+print(json.dumps(tools, indent=4))