Setup eslint plugin scaffold and basic CI actions

.eslintrc

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+{
+    "root": true,
+    "extends": [
+        "eslint:recommended",
+        "plugin:node/recommended"
+    ],
+    "env": {
+        "es6": true,
+        "jest": true,
+        "node": true
+    },
+    "parserOptions": {
+        "ecmaVersion": 6
+    },
+    "rules": {
+        "strict": ["error", "global"]
+    },
+    "ignorePatterns": ["test/**/test.js"]
+}

.github/workflows/lint.yml

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+name: lint
+run-name: Installs project and runs linting
+on: [ push, pull_request ]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ 18, 20 ]
+    name: Linting on Ubuntu with Node ${{ matrix.node }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'npm'
+      - run: npm install
+      - run: npm run lint

.github/workflows/prettier.yml

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+name: prettier
+run-name: Installs project and runs prettier checks
+on: [ push, pull_request ]
+jobs:
+  lint:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ 18, 20 ]
+    name: Prettier on Ubuntu with Node ${{ matrix.node }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'npm'
+      - run: npm install
+      - run: npm run format

.github/workflows/run-tests.yml

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+name: run-tests
+run-name: Installs project and runs tests
+on: [ push, pull_request ]
+jobs:
+  run-tests-nix:
+    runs-on: ubuntu-latest
+    strategy:
+      matrix:
+        node: [ 18, 20 ]
+    name: Run tests on Ubuntu with Node ${{ matrix.node }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'npm'
+      - run: npm install
+      - run: npm run test
+  run-tests-win:
+    runs-on: windows-latest
+    strategy:
+      matrix:
+        node: [ 18, 20 ]
+    name: Run tests on Windows with Node ${{ matrix.node }}
+    steps:
+      - uses: actions/checkout@v3
+      - uses: actions/setup-node@v3
+        with:
+          node-version: ${{ matrix.node }}
+          cache: 'npm'
+      - run: npm install
+      - run: npm run test

.gitignore

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+/node_modules
+/reports
+test-report.xml
+junit.xml
+

.vscode/launch.json

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+{
+    // Use IntelliSense to learn about possible attributes.
+    // Hover to view descriptions of existing attributes.
+    // For more information, visit: https://go.microsoft.com/fwlink/?linkid=830387
+    "version": "0.2.0",
+    "configurations": [
+        {
+            "name": "Debug Jest Tests",
+            "type": "node",
+            "request": "launch",
+            "runtimeArgs": [
+                "--inspect-brk",
+                "${workspaceRoot}/node_modules/.bin/jest",
+                "--runInBand"
+            ],
+            "console": "integratedTerminal",
+            "internalConsoleOptions": "neverOpen"
+        }
+    ]
+}

CODEOWNERS

@@ -1,3 +1,3 @@
 # Comment line immediately above ownership line is reserved for related other information. Please be careful while editing.
 #ECCN:Open Source
-* @khawkins @sfdctaka @maliroteh-sf
+* @khawkins @sfdctaka @maliroteh-sf @ben-zhang-at-salesforce @haifeng-li-at-salesforce

README.md

@@ -1 +1,27 @@
-# @salesforce/eslint-plugin-lwc-mobile
+# @salesforce/eslint-plugin-lwc-mobile
+
+## Installation
+
+To add this plugin to your package/project, install it with your favorite Node.js package manager.
+
+### yarn
+
+```sh
+$ yarn add --dev @salesforce/eslint-plugin-lwc-mobile
+```
+
+### npm
+
+```sh
+$ npm install --save-dev @salesforce/eslint-plugin-lwc-mobile
+```
+
+## Configuration
+
+Here's an example snippet of a `.eslintrc.json` configuration file, that will configure the `eslint-plugin-lwc-mobile` plugin. Extending the `plugin:@salesforce/lwc-mobile/recommended` ESLint configuration will enable static analysis on all `.js` files used in your Lightning web components.
+
+```json
+{
+    "extends": ["eslint:recommended", "plugin:@salesforce/lwc-mobile/recommended"]
+}
+```

jest.config.js

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+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+
+'use strict';
+
+module.exports = {
+    displayName: 'Unit Tests',
+    setupFilesAfterEnv: ['jest-extended', 'jest-chain'],
+    testMatch: [
+        '<rootDir>/test/plugin.js',
+        '<rootDir>/test/lib/rules/**/*.js',
+        '!**/test/lib/rules/shared.js'
+    ],
+    moduleFileExtensions: ['js', 'json'],
+    testResultsProcessor: 'jest-sonar-reporter',
+    testPathIgnorePatterns: ['/node_modules/', '<rootDir>/lib/'],
+    moduleDirectories: ['node_modules'],
+    collectCoverage: true,
+    collectCoverageFrom: ['lib/**/*.js'],
+    coverageDirectory: 'reports/coverage',
+    reporters: [
+        'default',
+        [
+            'jest-junit',
+            {
+                suiteName: 'Unit Tests',
+                output: './reports/junit/jest-results.xml'
+            }
+        ]
+    ]
+};

lib/configs/base.js

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+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+
+'use strict';
+
+module.exports = {
+    plugins: ['@salesforce/lwc-mobile']
+};

lib/configs/recommended.js

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+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+
+'use strict';
+
+module.exports = {
+    extends: ['./configs/base'],
+    rules: {
+        '@salesforce/lwc-mobile/enforce-foo-bar': 'warn'
+    }
+};

lib/index.js

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+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+
+'use strict';
+
+const base = require('./configs/base');
+const recommended = require('./configs/recommended');
+
+const enforceFooBar = require('./rules/enforce-foo-bar');
+
+module.exports = {
+    rules: {
+        'enforce-foo-bar': enforceFooBar
+    },
+    config: {
+        base,
+        recommended
+    }
+};

lib/rules/enforce-foo-bar.js

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+/*
+ * Copyright (c) 2024, salesforce.com, inc.
+ * All rights reserved.
+ * SPDX-License-Identifier: MIT
+ * For full license text, see the LICENSE file in the repo root or https://opensource.org/licenses/MIT
+ */
+
+'use strict';
+
+// TODO: This sample rule would be removed.
+// The enforce-foo-bar rule definition
+module.exports = {
+    meta: {
+        type: 'problem',
+        docs: {
+            description:
+                "Enforce that a variable named `foo` can only be assigned a value of 'bar'."
+        },
+        fixable: 'code',
+        schema: []
+    },
+    create(context) {
+        return {
+            // Performs action in the function on every variable declarator
+            VariableDeclarator(node) {
+                // Check if a `const` variable declaration
+                if (node.parent.kind === 'const') {
+                    // Check if variable name is `foo`
+                    if (node.id.type === 'Identifier' && node.id.name === 'foo') {
+                        // Check if value of variable is "bar"
+                        if (
+                            node.init &&
+                            node.init.type === 'Literal' &&
+                            node.init.value !== 'bar'
+                        ) {
+                            /*
+                             * Report error to ESLint. Error message uses
+                             * a message placeholder to include the incorrect value
+                             * in the error message.
+                             * Also includes a `fix(fixer)` function that replaces
+                             * any values assigned to `const foo` with "bar".
+                             */
+                            context.report({
+                                node,
+                                message:
+                                    'Value other than "bar" assigned to `const foo`. Unexpected value: {{ notBar }}.',
+                                data: {
+                                    notBar: node.init.value
+                                },
+                                fix(fixer) {
+                                    return fixer.replaceText(node.init, '"bar"');
+                                }
+                            });
+                        }
+                    }
+                }
+            }
+        };
+    }
+};