chore: consolidate eslint configs

.eslintrc.js

@@ -0,0 +1,152 @@
+/*
+ * Copyright 2024 American Express Travel Related Services Company, Inc.
+ *
+ * Licensed under the Apache License, Version 2.0 (the "License");
+ * you may not use this file except in compliance with the License.
+ * You may obtain a copy of the License at
+ *
+ * http://www.apache.org/licenses/LICENSE-2.0
+ *
+ * Unless required by applicable law or agreed to in writing, software
+ * distributed under the License is distributed on an "AS IS" BASIS,
+ * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express
+ * or implied. See the License for the specific language governing
+ * permissions and limitations under the License.
+ */
+
+const allowedDangles = [
+  // one-app
+  '__INITIAL_STATE__',
+  '__render_mode__',
+  // holocron
+  '__CLIENT_HOLOCRON_MODULE_MAP__',
+  '__HOLOCRON_EXTERNALS__',
+  // redux
+  '__REDUX_DEVTOOLS_EXTENSION_COMPOSE__',
+  // prom-client
+  '_metrics',
+  // lean-intl
+  '__addLocaleData',
+  // webpack
+  '__webpack_public_path__',
+];
+
+module.exports = {
+  root: true,
+  extends: 'amex',
+  plugins: ['es'],
+  parserOptions: {
+    babelOptions: {
+      presets: ['@babel/preset-react'],
+    },
+  },
+  rules: {
+    'unicorn/prefer-node-protocol': 'error',
+    'eslint-comments/require-description': ['error', { ignore: ['eslint-enable'] }],
+    'no-underscore-dangle': ['error', { allow: allowedDangles }],
+    'default-param-last': 0,
+  },
+  overrides: [
+    {
+      files: ['__performance__/**'],
+      globals: {
+        __ENV: true,
+      },
+      rules: {
+        // These scripts are not run directly, and the k6 package is a placeholder
+        'import/no-unresolved': ['error', { ignore: ['k6'] }],
+      },
+    },
+    {
+      files: [
+        '**/__mocks__/**',
+        '**/__tests__/**',
+      ],
+      extends: 'amex/test',
+      rules: {
+        // a lot of tests require changing the environment the file is started in
+        'global-require': 0,
+        // this is a server, a lot of console spies are added
+        'no-console': 0,
+        'no-underscore-dangle': ['error', { allow: allowedDangles }],
+      },
+    },
+    {
+      files: ['src/server/**'],
+      rules: {
+        // console methods are how we log events
+        'no-console': 0,
+      },
+    },
+    {
+      files: [
+        // Parts of the server that are only used in development
+        'src/server/devHolocronCDN.js',
+        'src/server/utils/devCdnFactory.js',
+        'src/server/utils/watchLocalModules.js',
+        'src/server/utils/logging/config/development.js',
+        // Client service worker just needs `@americanexpress/one-service-worker` at build time
+        'src/client/service-worker/**',
+      ],
+      rules: {
+        'import/no-extraneous-dependencies': ['error', { devDependencies: true }],
+      },
+    },
+    {
+      files: ['src/client/service-worker/**'],
+      rules: {
+        // for clearer error reporting, having anonymous functions may inhibit us from
+        // collecting a concise stack trace with the proper names of invoked functions
+        'prefer-arrow-callback': 'off',
+        // generally, self is acceptable to use in a service worker script
+        // we want to allow this behavior throughout
+        'no-restricted-globals': ['off', 'self'],
+      },
+    },
+    {
+      // Allow console logs in documentation
+      files: ['**/*.md/*.{js,javascript,jsx,node}'],
+      rules: {
+        'no-console': 0,
+      },
+    },
+    {
+      files: ['prod-sample/**'],
+      rules: {
+        'import/no-unresolved': 'off',
+      },
+    },
+    {
+      files: ['prod-sample/sample-modules/**'],
+      rules: {
+        'react/no-unknown-property': ['error', { ignore: ['css'] }],
+      },
+    },
+    {
+      files: [
+        'scripts/**',
+        'one-app-statics/**',
+      ],
+      rules: {
+        // these scripts should be used only during development
+        'import/no-extraneous-dependencies': ['error', { devDependencies: true, optionalDependencies: true, peerDependencies: false }],
+        // we need to message the user for DX
+        'no-console': 'off',
+        'global-require': 'off',
+        'import/no-dynamic-require': 'off',
+      },
+    },
+    {
+      files: ['scripts/dangers/**'],
+      globals: {
+        danger: 'readonly',
+        fail: 'readonly',
+        markdown: 'readonly',
+        message: 'readonly',
+        peril: 'readonly',
+        schedule: 'readonly',
+        warn: 'readonly',
+      },
+    },
+  ],
+};

__performance__/scripts/load.js

@@ -14,10 +14,8 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable import/no-unresolved -- performance scripts are not ran directly */
 import http from 'k6/http';
 import { check, sleep } from 'k6';
-/* eslint-enable import/no-unresolved */
 
 export const options = {
   stages: [

__performance__/scripts/smoke.js

@@ -14,10 +14,8 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable import/no-unresolved -- performance scripts are not ran directly */
 import http from 'k6/http';
 import { check, sleep } from 'k6';
-/* eslint-enable import/no-unresolved */
 
 // This is a simple smoke test to ensure there is no major regression
 // to the one-app server.

__performance__/scripts/soak.js

@@ -14,10 +14,8 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable import/no-unresolved -- performance scripts are not ran directly */
 import http from 'k6/http';
 import { check, sleep } from 'k6';
-/* eslint-enable import/no-unresolved */
 
 export const options = {
   stages: [

__performance__/scripts/spike.js

@@ -14,10 +14,8 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable import/no-unresolved -- performance scripts are not ran directly */
 import http from 'k6/http';
 import { check, sleep } from 'k6';
-/* eslint-enable import/no-unresolved */
 
 export const options = {
   stages: [

__performance__/scripts/stress.js

@@ -14,10 +14,8 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable import/no-unresolved -- performance scripts are not ran directly */
 import http from 'k6/http';
 import { check, sleep } from 'k6';
-/* eslint-enable import/no-unresolved */
 
 export const options = {
   stages: [

__tests__/client/initClient.spec.js

@@ -64,7 +64,6 @@ describe('initClient', () => {
 
   beforeEach(() => {
     global.fetch = jest.fn(() => Promise.resolve());
-    // eslint-disable-next-line no-underscore-dangle -- private API
     global.__CLIENT_HOLOCRON_MODULE_MAP__ = clientHolocronModuleMap;
     jest.resetModules();
     jest.clearAllMocks();
@@ -145,7 +144,6 @@ describe('initClient', () => {
     loadPrerenderScripts.mockReturnValueOnce(Promise.resolve());
     promiseResolveSpy.mockRestore();
 
-    // eslint-disable-next-line no-underscore-dangle -- private API
     global.__render_mode__ = 'render';
 
     const initClient = require('../../src/client/initClient').default;

__tests__/client/prerender.spec.js

@@ -61,12 +61,10 @@ describe('initializeClientStore', () => {
   });
 
   afterEach(() => {
-    // eslint-disable-next-line no-underscore-dangle -- private API
     global.__INITIAL_STATE__ = undefined;
   });
 
   it('should create the store with initial state if it exists', async () => {
-    // eslint-disable-next-line no-underscore-dangle -- private API
     global.__INITIAL_STATE__ = fromJS({ some: 'state' });
     initializeClientStore();
 
@@ -78,7 +76,6 @@ describe('initializeClientStore', () => {
     } = createHolocronStore.mock.calls[0][0];
 
     await expect(fetchClient()).resolves.toEqual({ data: 'data', timeout: 6000 });
-    // eslint-disable-next-line no-underscore-dangle -- private API
     expect(transitFromJson).toHaveBeenCalledWith(global.__INITIAL_STATE__);
     expect(createHolocronStore).toHaveBeenCalledWith({
       enhancer: 'enhancer', initialState: 'initial state', reducer: 'reducers', extraThunkArguments: { fetchClient },

__tests__/integration/one-app.spec.js

@@ -1567,7 +1567,7 @@ describe('Tests that require Docker setup', () => {
         'one-app-version': [expect.any(String)],
         'referrer-policy': ['same-origin'],
         'strict-transport-security': ['max-age=63072000; includeSubDomains'],
-        vary: ['Accept-Encoding, accept-encoding'],
+        vary: ['Accept-Encoding'],
         'x-content-type-options': ['nosniff'],
         'x-dns-prefetch-control': ['off'],
         'x-download-options': ['noopen'],
@@ -1632,7 +1632,7 @@ describe('Tests that require Docker setup', () => {
         'referrer-policy': ['no-referrer'],
         'strict-transport-security': ['max-age=63072000; includeSubDomains'],
         traceid: [expect.any(String)],
-        vary: ['Accept-Encoding, accept-encoding'],
+        vary: ['Accept-Encoding'],
         'x-content-type-options': ['nosniff'],
         'x-dns-prefetch-control': ['off'],
         'x-download-options': ['noopen'],
@@ -1925,7 +1925,7 @@ describe('Tests that can run against either local Docker setup or remote One App
             );
             const body = await response.text();
             expect(body).toBe(
-              '<style class="ssr-css">.frank-lloyd-root__styles__stylish___2aiGw{color:orchid}</style><pre class="value-provided-from-config">https://intranet-origin-dev.example.com/some-api/v1</pre><span class="message">Hello!</span>'
+              '<style id="90ac7139df6563d22a4a856f04cacf522587d2ec6e66ddb89d06ff844b5bee7c" data-ssr="true">._stylish_1wkbg_1{color:orchid}</style><pre class="value-provided-from-config">https://intranet-origin-dev.example.com/some-api/v1</pre><span class="message">Hello!</span>'
             );
           });
         });

__tests__/server/index.spec.js

@@ -229,7 +229,6 @@ describe('server index', () => {
 
     it('initializes Intl with a locale', async () => {
       await load();
-      // eslint-disable-next-line no-underscore-dangle -- lean-intl API
       expect(require('lean-intl').__addLocaleData.mock.calls[0][0]).toMatchObject({
         // contents dont have to exactly match just need to make sure that a locale object
         // is being added and not some random other thing
@@ -291,7 +290,6 @@ describe('server index', () => {
 
     it('initializes Intl with a locale', async () => {
       await load();
-      // eslint-disable-next-line no-underscore-dangle -- lean-intl API
       expect(require('lean-intl').__addLocaleData.mock.calls[0][0]).toMatchObject({
         // contents dont have to exactly match just need to make sure that a locale object
         // is being added and not some random other thing

__tests__/server/metrics/counters.spec.js

@@ -14,8 +14,6 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable no-underscore-dangle -- prom-client uses dangling underscore */
-
 describe('counters', () => {
   let Counter;
   let register;
@@ -93,5 +91,3 @@ describe('counters', () => {
     });
   });
 });
-
-/* eslint-enable no-underscore-dangle */

__tests__/server/metrics/gauges.spec.js

@@ -14,8 +14,6 @@
  * permissions and limitations under the License.
  */
 
-/* eslint-disable no-underscore-dangle -- prom-client uses dangling underscore */
-
 describe('gauges', () => {
   let Gauge;
   let register;
@@ -158,5 +156,3 @@ describe('gauges', () => {
     });
   });
 });
-
-/* eslint-enable no-underscore-dangle */