Migrate to ESLint

.github/workflows/main.yaml

@@ -22,7 +22,7 @@ jobs:
       if: steps.cache-npm.outputs.cache-hit != 'true'
       run: |
         npm install
-  
+
   build:
     name: Build
     needs: setup
@@ -58,4 +58,4 @@ jobs:
         path: ./node_modules
         key: npm-${{ hashFiles('./package-lock.json') }}
     - name: Lint Project
-      run: ./node_modules/tslint/bin/tslint --project .
+      run: npm run lint

.vscode/extensions.json

@@ -1,6 +1,6 @@
 {
     "recommendations": [
         "tobermory.es6-string-html",
-        "ms-vscode.vscode-typescript-tslint-plugin"
+        "dbaeumer.vscode-eslint"
     ]
 }

.vscode/settings.json

@@ -3,7 +3,8 @@
 	"editor.tabSize": 4,
 	"editor.insertSpaces": true,
 	"editor.useTabStops": false,
-	"files.trimTrailingWhitespace": false,
+	"eslint.useFlatConfig": true,
+	"files.trimTrailingWhitespace": true,
 	"files.exclude": {
 		"out": false,
 		"dist": true,

eslint.config.mjs

@@ -0,0 +1,88 @@
+import eslint from '@eslint/js';
+import tseslint from 'typescript-eslint';
+import stylistic from '@stylistic/eslint-plugin';
+import globals from 'globals';
+
+export default tseslint.config(
+    {
+        ignores: ['out/', 'dist/'],
+    },
+    eslint.configs.recommended,
+    tseslint.configs.recommendedTypeChecked,
+    stylistic.configs.customize({
+        arrowParens: 'always',
+        braceStyle: '1tbs',
+        commaDangle: 'only-multiline',
+        indent: 4,
+        quotes: 'single',
+        semi: 'always',
+    }),
+    {
+        files: ['resources/*.js'],
+        languageOptions: {
+            globals: {
+                acquireVsCodeApi: true,      // available for VSCode WebViews
+            },
+        },
+    },
+    {
+        languageOptions: {
+            globals: {
+                ...globals.node,
+                ...globals.browser,
+            },
+            parserOptions: {
+                project: true,
+                tsconfigRootDir: import.meta.dirname,
+            },
+        },
+
+        rules: {
+            '@typescript-eslint/no-base-to-string': 'off',              // 1 instance
+
+            '@stylistic/indent-binary-ops': 'off',      // this is a weird rule
+            '@stylistic/max-len': ['error', {
+                code: 160,
+                ignoreTrailingComments: true,
+            }],
+            '@stylistic/max-statements-per-line': ['error', {
+                ignoredNodes: ['IfStatement'],
+            }],
+            '@stylistic/member-delimiter-style': ['error', {
+                multiline: { delimiter: 'semi' },
+                singleline: { delimiter: 'semi' },
+            }],
+            '@stylistic/no-multi-spaces': ['error', {
+                ignoreEOLComments: true,
+            }],
+            '@stylistic/quote-props': ['error', 'as-needed', {
+                unnecessary: false,
+            }],
+        }
+    },
+    {
+        // the following rules are being heavily violated in the current codebase,
+        // we should work on being able to enable them...
+        rules: {
+            '@typescript-eslint/no-unsafe-member-access': 'off',        // 742 instances
+            '@typescript-eslint/no-unsafe-call': 'off',                 // 432 instances
+            '@typescript-eslint/no-unsafe-assignment': 'off',           // 429 instances
+            '@typescript-eslint/no-unsafe-argument': 'off',             // 401 instances
+            '@typescript-eslint/no-explicit-any': 'off',                // 226 instances
+            '@typescript-eslint/no-unused-vars': 'off',                 // 204 instances
+            '@typescript-eslint/no-unsafe-return': 'off',               // 83 instances
+            '@typescript-eslint/no-misused-promises': 'off',            // 57 instances
+            '@typescript-eslint/no-floating-promises': 'off',           // 55 instances
+            'no-useless-escape': 'off',                                 // 38 instances
+            '@typescript-eslint/prefer-promise-reject-errors': 'off',   // 36 instances
+            'no-async-promise-executor': 'off',                         // 29 instances
+            '@typescript-eslint/no-require-imports': 'off',             // 24 instances
+            'no-cond-assign': 'off',                                    // 21 instances
+            '@typescript-eslint/require-await': 'off',                  // 11 instances
+        }
+    },
+    {
+        files: ['**/*.{js,mjs}'],
+        extends: [tseslint.configs.disableTypeChecked],
+    },
+);