Merge branch 'glimmerjs:main' into master

.editorconfig

@@ -6,15 +6,20 @@ root = true
 
 
 [*]
+max_line_length = 100
 end_of_line = lf
 charset = utf-8
 trim_trailing_whitespace = true
 insert_final_newline = true
 indent_style = space
 indent_size = 2
 
+[*.json]
+max_line_length = 80
+
 [*.hbs]
 insert_final_newline = false
 
 [*.{diff,md}]
 trim_trailing_whitespace = false
+max_line_length = 80

.env

@@ -0,0 +1 @@
+NODE_OPTIONS="--no-warnings"

.env.testing

@@ -0,0 +1 @@
+NODE_ENV=development

.eslintignore

@@ -1,10 +1,12 @@
 # compiled output
 /dist/
+**/dist/
 /tmp/
 
 # dependencies
 /bower_components/
 /node_modules/
+**/node_modules/
 
 # misc
 /coverage/

.eslintrc.cjs

@@ -0,0 +1,137 @@
+// @ts-check
+
+const { resolve } = require('path');
+
+const cjsTsconfig = resolve(__dirname, 'tsconfig.cjs.json');
+
+/** @type {import("eslint").Linter.Config} */
+module.exports = {
+  root: true,
+  reportUnusedDisableDirectives: true,
+  extends: [],
+  ignorePatterns: [
+    'dist',
+    'ts-dist',
+    'node_modules',
+    'tmp',
+    '**/node_modules',
+    '**/dist',
+    '**/fixtures',
+    '!**/.eslintrc.cjs',
+  ],
+  parser: '@typescript-eslint/parser',
+  parserOptions: {
+    ecmaVersion: 'latest',
+    project: [],
+  },
+  settings: {
+    'import/parsers': {
+      '@typescript-eslint/parser': ['.js', '.cjs', '.mjs', '.mts', '.ts', '.d.ts'],
+    },
+    'import/resolver': {
+      typescript: {},
+    },
+    node: {
+      allowModules: ['@glimmer/debug', '@glimmer/local-debug-flags'],
+      tryExtensions: ['.js', '.ts', '.d.ts', '.json'],
+    },
+  },
+  plugins: [
+    '@typescript-eslint',
+    'prettier',
+    'qunit',
+    'simple-import-sort',
+    'unused-imports',
+    'prettier',
+    'n',
+  ],
+
+  rules: {},
+  overrides: [
+    {
+      files: ['.eslintrc.cjs', '**/.eslintrc.cjs'],
+      parserOptions: {
+        project: [cjsTsconfig],
+      },
+      extends: [
+        'plugin:@typescript-eslint/recommended',
+        'plugin:import/errors',
+        'plugin:import/typescript',
+        'plugin:qunit/recommended',
+        'prettier',
+      ],
+      rules: {
+        '@typescript-eslint/no-var-requires': 'off',
+      },
+    },
+    {
+      files: ['./package.json', '**/package.json'],
+      parser: 'jsonc-eslint-parser',
+      extends: ['plugin:jsonc/recommended-with-json', 'plugin:jsonc/prettier'],
+      rules: {
+        // Enforce order in the scripts object
+        // https://ota-meshi.github.io/eslint-plugin-jsonc/rules/sort-keys.html
+        'jsonc/sort-keys': [
+          'error',
+          {
+            pathPattern: '^$',
+            order: [
+              'name',
+              'version',
+              'license',
+              'description',
+              'repository',
+              'author',
+              'type',
+              'main',
+              'types',
+              'module',
+              'exports',
+              'publishConfig',
+              'files',
+              'scripts',
+              'dependencies',
+              'peerDependencies',
+              'devDependencies',
+              'release-it',
+              'changelog',
+              'engines',
+              'volta',
+            ],
+          },
+          {
+            pathPattern:
+              'scripts|devDependencies|peerDependencies|optionalDependencies|pnpm|overrides|peerDependencyRules|patchedDependencies|dependenciesMeta',
+            order: { type: 'asc' },
+          },
+          // ...
+        ],
+      },
+    },
+
+    {
+      // these packages need to be fixed to avoid these warnings, but in the
+      // meantime we should not regress the other packages
+      files: [
+        // this specific test imports from @glimmer/runtime (causing a cyclic
+        // dependency), it should either be refactored to use the interfaces
+        // directly (instead of the impls) or moved into @glimmer/runtime
+        'packages/@glimmer/reference/test/template-test.ts',
+      ],
+      rules: {
+        'n/no-extraneous-import': 'warn',
+      },
+    },
+
+    // QUnit is a weird package, and there are some issues open about fixing it
+    // - https://github.com/qunitjs/qunit/issues/1729
+    // - https://github.com/qunitjs/qunit/issues/1727
+    // - https://github.com/qunitjs/qunit/issues/1724
+    {
+      files: ['**/*-test.ts', '**/{test,integration-tests}/**/*.ts'],
+      rules: {
+        '@typescript-eslint/unbound-method': 'off',
+      },
+    },
+  ],
+};