Fix for client-node ESM v Commonjs issue. (#132)

Signed-off-by: Tatsat Mishra <tamishra@microsoft.com>

babel.config.js

@@ -0,0 +1,7 @@
+// babel.config.js
+export default {
+   presets: [
+      '@babel/preset-env', // For handling ES modules
+      '@babel/preset-typescript' // For handling TypeScript
+   ]
+}

jest.config.js

@@ -1,4 +1,4 @@
-module.exports = {
+export default {
    restoreMocks: true,
    clearMocks: true,
    resetMocks: true,
@@ -6,8 +6,16 @@ module.exports = {
    testEnvironment: 'node',
    testMatch: ['**/*.test.ts'],
    transform: {
-      '^.+\\.ts$': 'ts-jest'
+      '^.+\\.ts$': 'ts-jest', // Use ts-jest for TypeScript files
+      '^.+\\.js$': 'babel-jest' // Transform TypeScript files
    },
+   transformIgnorePatterns: [
+      '/node_modules/(?!@kubernetes/client-node)/' // Make sure to transform the Kubernetes client module
+   ],
+   moduleNameMapper: {
+      '^.+\\.css$': 'jest-transform-stub' // Handle CSS imports (if any)
+   },
+   extensionsToTreatAsEsm: ['.ts', '.tsx'], // Treat TypeScript files as ESM
    verbose: true,
    coverageThreshold: {
       global: {

package.json

@@ -3,6 +3,7 @@
    "version": "4.0.0",
    "private": true,
    "main": "lib/index.js",
+   "type": "module",
    "scripts": {
       "prebuild": "npm i @vercel/ncc",
       "build": "ncc build src/run.ts -o lib",
@@ -22,17 +23,20 @@
       "@actions/core": "^1.11.1",
       "@actions/exec": "^1.1.1",
       "@actions/io": "^1.1.3",
-      "@kubernetes/client-node": "^0.22.3",
+      "@kubernetes/client-node": "^1.1.0",
       "js-yaml": "^4.1.0"
    },
    "devDependencies": {
+      "@babel/preset-env": "^7.26.9",
+      "@babel/preset-typescript": "^7.26.0",
       "@types/jest": "^29.5.14",
       "@types/js-yaml": "^4.0.9",
       "@types/node": "^22.10.2",
       "@vercel/ncc": "^0.38.3",
+      "babel-jest": "^29.7.0",
       "jest": "^29.7.0",
-      "prettier": "^3.4.2",
-      "ts-jest": "^29.2.5",
-      "typescript": "^5.7.2"
+      "prettier": "^3.5.3",
+      "ts-jest": "^29.2.6",
+      "typescript": "^5.8.2"
    }
 }

tsconfig.json

@@ -1,8 +1,15 @@
 {
    "compilerOptions": {
-      "target": "ES6",
-      "module": "commonjs",
-      "esModuleInterop": true
+      "baseUrl": ".",
+      "module": "ESNext", // or "NodeNext" depending on your setup
+      "moduleResolution": "node",
+      "esModuleInterop": true,
+      "allowSyntheticDefaultImports": true,
+      "skipLibCheck": true,
+      "paths": {
+         "@actions/core": ["node_modules/@actions/core"],
+         "@kubernetes/client-node": ["node_modules/@kubernetes/client-node"]
+      }
    },
    "exclude": ["node_modules", "tests", "src/**/*.test.ts"]
 }