🐛 Escape namespaced dependencies in Babel exclude regex (#21)

🐛 Escape namespaced dependencies in Babel exclude regex

package.json

@@ -1,6 +1,6 @@
 {
  "name": "are-you-es5",
- "version": "1.3.2",
+ "version": "1.3.3",
  "description": "A package to help you find out which of your `node_modules` aren't ES5 so you can add them to your transpilation steps.",
  "main": "dist/index.js",
  "repository": "https://github.com/obahareth/are-you-es5.git",

src/babel-loader-regex-builder.ts

@@ -1,4 +1,6 @@
 export function getBabelLoaderIgnoreRegex(dependencies: string[]) {
+ dependencies = escapeNamespacedDependencies(dependencies)
+
  // [\\\\/] is a bit confusing but what it's doing is matching either a
  // backslash or forwards slash. Forwards slashes don't need to be
  // escaped inside a character group, and we need to escape the
@@ -8,3 +10,7 @@ export function getBabelLoaderIgnoreRegex(dependencies: string[]) {
  // [\\/]
  return `/[\\\\/]node_modules[\\\\/](?!(${dependencies.join('|')})[\\\\/])/`
 }
+
+function escapeNamespacedDependencies(dependencies: string[]): string[] {
+ return dependencies.map(dep => dep.replace('/', '\\/'))
+}

src/index.ts

@@ -7,7 +7,7 @@ import { ModulesChecker } from './modules-checker'
 import IModuleCheckerConfig from './types/module-checker-config'
 
 program
- .version('1.3.2')
+ .version('1.3.3')
  .command('check <path>')
  .description(
  'Checks if all node_modules (including monorepos) at <path> are ES5'

tests/babel-loader-regex-builder.test.ts

@@ -0,0 +1,19 @@
+import { getBabelLoaderIgnoreRegex } from '../src/babel-loader-regex-builder'
+
+describe('getBabelLoaderIgnoreRegex', () => {
+ it('returns a regex for ignoring dependencies', () => {
+ const dependencies = ['dotenv', 'md5-file']
+ const expectedRegex =
+ '/[\\\\/]node_modules[\\\\/](?!(dotenv|md5-file)[\\\\/])/'
+
+ expect(getBabelLoaderIgnoreRegex(dependencies)).toEqual(expectedRegex)
+ })
+
+ it('handles namespaced dependencies', () => {
+ const dependencies = ['@react-pdf/renderer', 'dotenv', 'md5-file']
+ const expectedRegex =
+ '/[\\\\/]node_modules[\\\\/](?!(@react-pdf\\/renderer|dotenv|md5-file)[\\\\/])/'
+
+ expect(getBabelLoaderIgnoreRegex(dependencies)).toEqual(expectedRegex)
+ })
+})