Add eslint

.eslintignore

@@ -0,0 +1,2 @@
+node_modules
+packages/*/dist

.eslintrc.js

@@ -0,0 +1,39 @@
+module.exports = {
+ env: {
+ 'jest/globals': true,
+ },
+ plugins: [
+ '@typescript-eslint',
+ 'import',
+ 'jest',
+ ],
+ extends: [
+ 'airbnb-base',
+ 'plugin:import/typescript',
+ 'plugin:@typescript-eslint/recommended',
+ ],
+ parser: '@typescript-eslint/parser',
+ settings: {
+ 'import/parsers': {
+ '@typescript-eslint/parser': ['.ts', '.tsx'],
+ },
+ },
+ rules: {
+ 'import/extensions': [
+ 'error',
+ 'always',
+ {
+ js: 'never',
+ jsx: 'never',
+ ts: 'never',
+ tsx: 'never',
+ },
+ ],
+ },
+ ignorePatterns: [
+ 'packages/*/lib/*.js',
+ '*.d.ts',
+ 'node_modules/',
+ '*.generated.ts',
+ ],
+};

package.json

@@ -3,13 +3,21 @@
  "license": "MIT",
  "type": "module",
  "devDependencies": {
+ "@typescript-eslint/eslint-plugin": "^4.7.0",
+ "@typescript-eslint/parser": "^4.7.0",
  "concurrently": "^5.3.0",
+ "eslint": "^7.13.0",
+ "eslint-config-airbnb-base": "^14.2.1",
+ "eslint-config-airbnb-typescript": "^12.0.0",
+ "eslint-plugin-import": "^2.22.1",
+ "eslint-plugin-jest": "^24.1.3",
  "fast-glob": "^3.2.4",
  "fs-extra": "^9.0.1",
  "jest": "^26.6.3",
  "jsii-docgen": "^1.4.85",
  "lerna": "^3.22.1",
- "nodemon": "^2.0.6"
+ "nodemon": "^2.0.6",
+ "typescript": "^4.0.5"
  },
  "dependencies": {},
  "scripts": {
@@ -20,6 +28,7 @@
  "package": "lerna run package",
  "docgen": "node ./scripts/docgen.js --output site/docs 'packages/**/.jsii'",
  "docgen:watch": "nodemon --exec 'npm run docgen' $(for f in packages/*/.jsii; do echo \"-w $f\"; done) --ext jsii --verbose",
+ "eslint": "eslint .",
  "test": "jest",
  "website": "cd site && bundle exec jekyll serve"
  },

packages/hello-world/__tests__/hello-world.test.js

@@ -1,7 +1,5 @@
-'use strict';
-
-const helloWorld = require('..');
+import helloWorld from '../lib/index';
 
 describe('hello-world', () => {
-  test.todo('needs tests');
+ test.todo('needs tests');
 });

packages/hello-world/lib/index.ts

@@ -1,4 +1,4 @@
-import { Construct } from "@aws-cdk/core";
+import { Construct } from '@aws-cdk/core';
 
 export interface TestProps {
  /**

tsconfig.json

@@ -0,0 +1,17 @@
+{
+ "compilerOptions": {
+ "target": "ES2019",
+ "module": "commonjs",
+ "esModuleInterop": true,
+ "declaration": true,
+ "declarationMap": true,
+ "sourceMap": true,
+ "removeComments": false,
+ "strict": true,
+ "alwaysStrict": true,
+ "noUnusedLocals": true,
+ "noUnusedParameters": true,
+ "noImplicitReturns": true,
+ "noFallthroughCasesInSwitch": true
+ }
+}