refactor: use ESLint & Prettier instead of jshint

.eslintrc.js

@@ -0,0 +1,27 @@
+module.exports = {
+  root: true,
+  env: {
+    browser: true,
+    node: true,
+    es6: true,
+  },
+  parserOptions: {
+    parser: '@typescript-eslint/parser',
+    ecmaVersion: 2020,
+    sourceType: 'module',
+    lib: ['es2020'],
+  },
+  plugins: ['prettier', 'jsdoc', 'security', '@typescript-eslint'],
+  extends: [
+    'prettier',
+    'plugin:@typescript-eslint/eslint-recommended',
+    'plugin:jsdoc/recommended',
+    'plugin:security/recommended',
+    'plugin:prettier/recommended',
+  ],
+  // add your custom rules here
+  rules: {
+    'no-console': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+    'no-debugger': process.env.NODE_ENV === 'production' ? 'error' : 'off',
+  },
+};

.github/workflows/ci.yml

@@ -0,0 +1,70 @@
+name: ci
+
+on:
+  push:
+    branches:
+      - main
+      - master
+      - dev
+  pull_request_target:
+    branches:
+      - main
+      - master
+      - dev
+
+permissions:
+  checks: write
+  contents: read
+
+concurrency:
+  group: ${{ github.workflow }}-${{ github.event_name == 'pull_request_target' && github.head_ref || github.ref }}
+  cancel-in-progress: true
+
+jobs:
+  ci:
+    runs-on: ${{ matrix.os }}
+
+    strategy:
+      fail-fast: false
+      matrix:
+        os: [ubuntu-latest]
+        node: [16, 17]
+
+    steps:
+      - name: Check out repository (push)
+        if: ${{ github.event_name == 'push' || github.event_name == 'pull_request_target' || github.event_name == 'pull_request' && github.actor != 'dependabot[bot]' }}
+        uses: actions/checkout@v2
+
+      - name: Check out repository (pull_request_target)
+        if: ${{ github.event_name == 'pull_request_target' && github.actor == 'dependabot[bot]' }}
+        uses: actions/checkout@v2
+        with:
+          ref: ${{ github.event.pull_request.head.sha }}
+
+      - name: Setup node env 📦
+        uses: actions/setup-node@v2.5.1
+        with:
+          node-version: ${{ matrix.node }}
+          check-latest: true
+          registry-url: https://registry.npmjs.org
+          cache: 'npm'
+
+      - name: Upgrade npm ✨
+        run: npm i -g npm@latest
+
+      - name: Install dependencies 🚀
+        run: npm ci --prefer-offline --no-audit
+
+      - name: Run linter(s) 👀
+        uses: wearerequired/lint-action@v1
+        with:
+          github_token: ${{ secrets.GITHUB_TOKEN }}
+          git_name: github-actions[bot]
+          git_email: github-actions[bot]@users.noreply.github.com
+          continue_on_error: false
+          auto_fix: true
+          neutral_check_on_warning: true
+          eslint: true
+          eslint_extensions: js,ts
+          prettier: true
+          prettier_extensions: js,ts

package.json

@@ -11,7 +11,13 @@
     "ciao": "node node_modules/ciao/bin/ciao -c test/ciao.json test/ciao",
     "coverage": "node_modules/.bin/istanbul cover test/unit/run.js",
     "docs": "./bin/generate-docs",
-    "lint": "jshint .",
+    "lint": "npm run lint:eslint && npm run lint:prettier",
+    "lintfix": "npm run lint:eslint:fix && npm run lint:prettier:fix",
+    "lint:js": "npm run lint:eslint && npm run lint:prettier",
+    "lint:eslint": "eslint \"{,!(node_modules|dist|static)/**/}*.{js,ts}\" --ignore-path .gitignore",
+    "lint:eslint:fix": "eslint --fix \"{,!(node_modules|dist|static)/**/}*.{js,ts}\" --ignore-path .gitignore",
+    "lint:prettier": "prettier --check \"{,!(node_modules|dist|static)/**/}*.{js,ts}\" --ignore-path .gitignore",
+    "lint:prettier:fix": "prettier --write \"{,!(node_modules|dist|static)/**/}*.{js,ts}\" --ignore-path .gitignore",
     "start": "./bin/start",
     "test": "npm run unit",
     "ci": "npm test",
@@ -67,12 +73,20 @@
     "through2": "^3.0.0"
   },
   "devDependencies": {
+    "@typescript-eslint/eslint-plugin": "^5.9.0",
+    "@typescript-eslint/parser": "^5.9.0",
     "ciao": "^2.0.0",
     "difflet": "^1.0.1",
+    "eslint": "^8.6.0",
+    "eslint-config-prettier": "^8.3.0",
+    "eslint-plugin-jsdoc": "^37.5.1",
+    "eslint-plugin-prettier": "^4.0.0",
+    "eslint-plugin-security": "^1.4.0",
     "istanbul": "^0.4.2",
     "jshint": "^2.10.1",
     "pelias-mock-logger": "^1.3.0",
     "precommit-hook": "^3.0.0",
+    "prettier": "^2.5.1",
     "proxyquire": "^2.0.0",
     "tap-dot": "^2.0.0",
     "tape": "^5.1.1"

prettier.config.js

@@ -0,0 +1,13 @@
+module.exports = {
+  $schema: 'http://json.schemastore.org/prettierrc',
+  semi: true,
+  arrowParens: 'always',
+  singleQuote: true,
+  trailingComma: 'all',
+  bracketSpacing: true,
+  htmlWhitespaceSensitivity: 'css',
+  insertPragma: false,
+  tabWidth: 2,
+  useTabs: false,
+  endOfLine: 'lf',
+};