[build] upgrade eslint to 9.37.0 (#88)

Co-authored-by: tobi <tobi.smethurst@protonmail.com>
Reviewed-on: https://codeberg.org/superseriousbusiness/masto-fe-standalone/pulls/88
Co-authored-by: Zoë Bijl <moiety@noreply.codeberg.org>
Co-committed-by: Zoë Bijl <moiety@noreply.codeberg.org>

eslint.config.js

@@ -0,0 +1,173 @@
+const globals = require("globals");
+const importPlugin = require("eslint-plugin-import");
+const reactPlugin = require("eslint-plugin-react");
+const reactHooks = require("eslint-plugin-react-hooks");
+const jsxA11y = require("eslint-plugin-jsx-a11y");
+const pluginPromise = require("eslint-plugin-promise");
+const pluginJest = require("eslint-plugin-jest");
+
+module.exports = [
+
+  // Global settings.
+  {
+    settings: {
+      react: {
+        version: "detect",
+      },
+    },
+  },
+
+  // Import set of sensible rules from f0x and
+  // override some of them to fit the masto style
+  // to avoid reformatting a million files.
+  ...require("@f0x52/eslint-config"),
+  {
+    rules: {
+      "@stylistic/indent": ["error", 2],
+      "no-unused-vars": "off",
+      "no-use-before-define": "off",
+      "no-useless-assignment": "off",
+      "no-case-declarations": "warn",
+      "quotes": ["error", "double"],
+    },
+  },
+
+  // Files about which
+  // we do not care.
+  {
+    ignores: [
+      "build/**/*",
+      "coverage/**/*",
+      "db/**/*",
+      "lib/**/*",
+      "log/**/*",
+      "node_modules/**/*",
+      "nonobox/**/*",
+      "public/**/*",
+      "!public/embed.js",
+      "spec/**/*",
+      "tmp/**/*",
+      "vendor/**/*",
+      "!**/.eslintrc.js",
+    ],
+  },
+
+  // Main rules for source
+  // files defined here.
+  {
+    files: [
+      "**/*.ts",
+      "**/*.tsx",
+      "**/*.js",
+      "**/*.jsx",
+    ],
+    plugins: {
+      import: importPlugin,
+      react: reactPlugin,
+      "react-hooks": reactHooks,
+      "jsx-a11y": jsxA11y,
+      "promise": pluginPromise,
+    },
+    languageOptions: {
+      ecmaVersion: 2022,
+      sourceType: "module",
+      globals: {
+        ...globals.browser,
+        ...globals.node,
+      },
+      parserOptions: {
+        ecmaFeatures: {
+          jsx: true,
+        },
+        project: true,
+      },
+    },
+    rules: {
+      // Import recommended rules for plugins.
+      ...importPlugin.flatConfigs.warnings.rules,
+      ...reactPlugin.configs.flat.recommended.rules,
+      ...reactHooks.configs.flat.recommended.rules,
+      ...jsxA11y.flatConfigs.recommended.rules,
+      ...pluginPromise.configs["flat/recommended"].rules,
+      
+      // Override ones we don"t need.
+      "react/jsx-uses-react": "off",
+      "react/jsx-no-target-blank": "warn",
+      "react/react-in-jsx-scope": "off",
+      "react/prop-types": "off",
+      "react/no-unknown-property": "warn",
+      "react/display-name": "warn",
+      "react/no-deprecated": "warn",
+
+      // TODO: Fix these jsx-a11y warnings.
+      "jsx-a11y/accessible-emoji": "warn",
+      "jsx-a11y/click-events-have-key-events": "warn",
+      "jsx-a11y/label-has-associated-control": "warn",
+      "jsx-a11y/media-has-caption": "warn",
+      "jsx-a11y/no-autofocus": "warn",
+      "jsx-a11y/no-noninteractive-tabindex": "warn",
+      "jsx-a11y/no-onchange": "warn",
+      "jsx-a11y/no-interactive-element-to-noninteractive-role": "warn",
+      "jsx-a11y/no-static-element-interactions": [
+        "warn",
+        {
+          handlers: [
+            "onClick",
+          ],
+        },
+      ],
+
+      // Todo: fix these promise warnings.
+      "promise/always-return": "warn",
+      "promise/catch-or-return": [
+        "error",
+        {
+          allowFinally: true,
+        },
+      ],
+      "promise/no-callback-in-promise": "warn",
+      "promise/no-nesting": "warn",
+      "promise/no-promise-in-callback": "warn",
+    },
+  },
+
+  // Rules for test files.
+  {
+    files: [
+      "**/__tests__/*.js",
+      "**/__tests__/*.jsx",
+    ],
+    plugins: { jest: pluginJest },
+    languageOptions: {
+      globals: pluginJest.environments.globals.globals,
+    },
+    rules: {
+      "jest/no-disabled-tests": "warn",
+      "jest/no-focused-tests": "error",
+      "jest/no-identical-title": "error",
+      "jest/prefer-to-have-length": "warn",
+      "jest/valid-expect": "error",
+    },
+  },
+
+  // Rules for other bits and
+  // bobs and odds and ends.
+  {
+    files: [
+      "*.config.js",
+      ".*rc.js",
+      "ide-helper.js",
+      "config/webpack/**/*",
+      "config/formatjs-formatter.js",
+    ],
+    languageOptions: {
+      sourceType: "script",
+      globals: {
+        ...globals.commonjs,
+      },
+    },
+    rules: {
+      "import/no-commonjs": "off",
+    },
+  },
+];