Add experimental IML formatter

.vscode/launch.json

@@ -19,6 +19,48 @@
         "type": "npm",
         "script": "esbuild"
       }
+    },
+    {
+      "name": "Debug imlformat",
+      "type": "node",
+      "request": "launch",
+      "runtimeExecutable": "tsx",
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen",
+      "cwd": "${workspaceFolder}/imlformat",
+      "program": "${workspaceFolder}/imlformat/imlformat.ts",
+      "args": [
+        "${workspaceFolder}/imlformat/test/demo.iml"
+      ],
+      "outFiles": [
+        "${workspaceFolder}/imlformat/out-dbg/**/*.js"
+      ],
+      "resolveSourceMapLocations": [
+        "${workspaceFolder}/imlformat/**",
+      ],
+      "skipFiles": [
+        "<node_internals>/**",
+        "${workspaceFolder}/out/**",
+        "${workspaceFolder}/node_modules/**",
+        "${workspaceFolder}/imlformat/node_modules/**",
+        "${workspaceFolder}/node_modules/out/**"
+      ],
+    },
+    {
+      "name": "Debug imlformat Jests",
+      "type": "node",
+      "request": "launch",
+      "cwd": "${workspaceFolder}/imlformat",
+      "env": {
+        "NODE_OPTIONS": "--experimental-vm-modules"
+      },
+      "runtimeArgs": [
+        "--inspect-brk",
+        "${workspaceRoot}/imlformat/node_modules/.bin/jest",
+        "--runInBand"
+      ],
+      "console": "integratedTerminal",
+      "internalConsoleOptions": "neverOpen"
     }
   ]
 }

.vscode/settings.json

@@ -6,5 +6,7 @@
   },
   "editor.tabSize": 2,
   "editor.insertSpaces": true,
-  "editor.detectIndentation": false
+  "editor.detectIndentation": false,
+  "jest.rootPath": "imlformat",
+  "jest.runMode": "on-demand",
 }

.vscodeignore

@@ -14,3 +14,11 @@ src/
 tsconfig.json
 tmp
 _opam
+README.dev.md
+.gitmodules
+.vscode-test.mjs
+eslint.config.mjs
+vendor
+imlformat
+!node_modules/prettier
+Makefile

Makefile

@@ -4,7 +4,7 @@ package-lock.json: package.json
 	npm i
 
 # see https://code.visualstudio.com/api/working-with-extensions/bundling-extension#using-esbuild
-vsix: package-lock.json src/extension.ts
+vsix: package-lock.json src/*.ts
 	npm x vsce package
 
 distrib: vsix

imlformat/.prettierrc.json

@@ -0,0 +1,7 @@
+{
+  "printWidth": 80,
+  "tabWidth": 2,
+  "useTabs": false,
+  "semi": false,
+  "singleQuote": false
+}

imlformat/README.md

@@ -0,0 +1,17 @@
+imlformat
+=========
+
+A formatter for IML files based on [prettier](https://prettier.io/).
+
+Run me like so:
+
+```
+npm install
+npx tsx imlformat.ts <filename>
+```
+
+Usage from prettier with the plugin option:
+```
+npm run esbuild
+npx prettier --plugin=./out/iml-prettier.js <filename>
+```

imlformat/eslint.config.mjs

@@ -0,0 +1,47 @@
+import tseslint from "typescript-eslint";
+import eslint from "@eslint/js";
+
+export default tseslint.config(
+  eslint.configs.recommended,
+  tseslint.configs.recommendedTypeChecked,
+  tseslint.configs.stylisticTypeChecked,
+  {
+    files: ["**.ts", "**.*.ts"],
+  },
+  {
+    languageOptions: {
+      parserOptions: {
+        projectService: true,
+        tsconfigRootDir: import.meta.dirname
+      },
+    },
+  },
+  {
+    rules: {
+      "@typescript-eslint/no-unsafe-assignment": "warn",
+      "@typescript-eslint/no-unsafe-argument": "warn",
+      "@typescript-eslint/no-unsafe-call": "warn",
+      "@typescript-eslint/no-unsafe-member-access": "off",
+      "@typescript-eslint/dot-notation": "warn",
+      "@typescript-eslint/no-explicit-any": "warn",
+      "@typescript-eslint/no-floating-promises": "warn",
+      "@typescript-eslint/no-unused-vars": "off",
+      "no-prototype-builtins": "off",
+      "@typescript-eslint/no-unsafe-return": "off",
+      "@typescript-eslint/no-unsafe-call": "off",
+      "@typescript-eslint/no-unsafe-assignment": "off",
+      "@typescript-eslint/prefer-nullish-coalescing": "off",
+      "@typescript-eslint/no-require-imports": "off",
+      "@typescript-eslint/no-unsafe-argument": "off"
+    }
+  },
+  {
+    ignores: [
+      "node_modules/**",
+      "src/node_modules/**",
+      "src/out/**",
+      "eslint.config.mjs",
+      ".vscode-test.mjs"
+    ],
+  },
+);