dual package publishing using nanobundle

Author: cometkim

@nact/core/.gitignore

@@ -1,7 +1,6 @@
 *.js
-!rollup.config.js
 !jest.config.js
 dist/
 *.d.ts
 *.map
-index.mjs
+index.mjs

@nact/core/package.json

@@ -2,13 +2,22 @@
   "name": "@nact/core",
   "version": "0.5.0",
   "description": "",
-  "module": "index.js",
-  "main": "index.js",
+  "main": "./dist/index.js",
+  "module": "./dist/index.mjs",
+  "types": "./dist/index.d.ts",
+  "exports": {
+    ".": {
+      "types": "./dist/index.d.ts",
+      "require": "./dist/index.js",
+      "import": "./dist/index.mjs"
+    },
+    "./package.json": "./package.json"
+  },
   "sideEffects": false,
   "scripts": {
     "test": "npm run lint-fix && jest",
     "test-watch": "jest --watch",
-    "build": "rollup -c rollup.config.js",
+    "build": "nanobundle build --platform node",
     "interactive-cover": "nyc --reporter=html mocha ./test/*.js && open ./coverage/index.html",
     "lint": "semistandard",
     "coverage": "nyc report --reporter=text-lcov | coveralls",
@@ -21,17 +30,16 @@
   "author": "",
   "license": "ISC",
   "devDependencies": {
-    "@rollup/plugin-typescript": "^8.3.1",
     "@types/chai": "^4.3.0",
     "@types/chai-as-promised": "^7.1.5",
     "@types/jest": "^26.0.20",
     "chai": "^4.3.6",
     "chai-as-promised": "^7.1.1",
     "jest": "^26.6.3",
-    "rollup": "^2.70.1",
+    "nanobundle": "^1.0.0",
     "semistandard": "^16.0.0",
     "ts-jest": "^26.5.2",
     "tslib": "^2.3.1",
     "typescript": "^4.1.5"
   }
-}
+}

@nact/core/rollup.config.js

@@ -27,9 +27,8 @@
     "resolveJsonModule": true,
     // Ensure that Babel can safely transpile files in the TypeScript project
     "isolatedModules": true,
+    "rootDir": ".",
     "outDir": "dist",
-    "declaration": true,
-    "declarationDir": "."
-    // Ensure that .d.ts files are created by tsc, but not .js files
+    "declaration": true
   }
-}
+}

@nact/core/tsconfig.json

@@ -0,0 +1 @@
+dist/