feat(sass): switch to @use and setup lsp server

packages/some-sass-language-server/default.nix

@@ -0,0 +1,38 @@
+{
+  writeShellApplication,
+  nodejs_latest,
+  prefetch-npm-deps,
+  jq,
+  buildNpmPackage,
+  makeWrapper,
+  ...
+}: let
+  package = builtins.fromJSON (builtins.readFile ./package.json);
+in
+  buildNpmPackage {
+    pname = "some-sass-language-server";
+    version = package.dependencies.some-sass-language-server;
+
+    src = ./.;
+    dontNpmBuild = true;
+
+    nativeBuildInputs = [makeWrapper];
+
+    installPhase = ''
+      mkdir -p $out/bin
+      cp -r node_modules $out
+      makeWrapper $out/node_modules/.bin/some-sass-language-server $out/bin/some-sass-language-server
+    '';
+
+    npmDepsHash = "sha256-4VYm0UDbdOh2jo8/YkVG4mt0nvkHWTllJWxaZvRuxCc=";
+
+    passthru.update = writeShellApplication {
+      name = "update";
+      runtimeInputs = [
+        nodejs_latest
+        prefetch-npm-deps
+        jq
+      ];
+      text = import ./update.nix;
+    };
+  }

packages/some-sass-language-server/package-lock.json

@@ -0,0 +1,24 @@
+{
+  "name": "some-sass-language-server",
+  "lockfileVersion": 3,
+  "requires": true,
+  "packages": {
+    "": {
+      "dependencies": {
+        "some-sass-language-server": "2.0.2"
+      }
+    },
+    "node_modules/some-sass-language-server": {
+      "version": "2.0.2",
+      "resolved": "https://registry.npmjs.org/some-sass-language-server/-/some-sass-language-server-2.0.2.tgz",
+      "integrity": "sha512-YjozRBpIqh+LoWWZbau/5hqCtARPnR36p/TIFTo0UEPWYQQzwEGeJCmIliwId9/D9MQlEql6LSFCLRotLEtYXw==",
+      "license": "MIT",
+      "bin": {
+        "some-sass-language-server": "bin/some-sass-language-server"
+      },
+      "engines": {
+        "node": ">=20"
+      }
+    }
+  }
+}

packages/some-sass-language-server/package.json

@@ -0,0 +1,5 @@
+{
+  "dependencies": {
+    "some-sass-language-server": "2.0.2"
+  }
+}

packages/some-sass-language-server/update.nix

@@ -0,0 +1,16 @@
+#bash
+''
+  cd "$FLAKE/packages/some-sass-language-server" || return
+
+  latest=$(npm outdated --json | jq -r '.["some-sass-language-server"]["latest"]' || true)
+
+  echo "$latest"
+
+  sed -i "s#\"some-sass-language-server\": \"[^\"]*\"#\"some-sass-language-server\": \"$latest\"#" ./package.json
+
+  npm update
+
+  npm_hash="$(prefetch-npm-deps ./package-lock.json)"
+
+  sed -i "s#npmDepsHash = .*#npmDepsHash = \"$npm_hash\";#" ./default.nix
+''