support commonjs and mjs

rollup.config.js

@@ -7,7 +7,7 @@ import json from '@rollup/plugin-json';
 const commonConfig = {
   input: 'src/index.js',
   output: {
-    name: 'repertory-js',
+    name: 'index',
     sourcemap: true,
   },
   plugins: [
@@ -28,19 +28,33 @@ const commonConfig = {
 // ESM config
 const esmConfig = Object.assign({}, commonConfig);
 esmConfig.output = Object.assign({}, commonConfig.output, {
-  file: 'dist/repertory-js.mjs',
+  file: 'dist/mjs/index.js',
   format: 'esm',
 });
 
 // ESM prod config
 const esmProdConfig = Object.assign({}, esmConfig);
 esmProdConfig.output = Object.assign({}, esmConfig.output, {
-  file: 'dist/repertory-js.min.mjs',
+  file: 'dist/mjs/index.min.js',
   sourcemap: false,
 });
 esmProdConfig.plugins = [...esmConfig.plugins, terser()];
 
+// CJS config
+const cjsConfig = Object.assign({}, commonConfig);
+cjsConfig.output = Object.assign({}, commonConfig.output, {
+  file: 'dist/cjs/index.js',
+  format: 'cjs',
+});
+
+// CJS prod config
+const cjsProdConfig = Object.assign({}, cjsConfig);
+cjsProdConfig.output = Object.assign({}, cjsConfig.output, {
+  file: 'dist/cjs/index.min.js',
+  sourcemap: false,
+});
+cjsProdConfig.plugins = [...cjsConfig.plugins, terser()];
 let configurations = [];
-configurations.push(esmConfig, esmProdConfig);
+configurations.push(esmConfig, esmProdConfig, cjsConfig, cjsProdConfig);
 
 export default configurations;