Merge pull request #183 from preactjs/commonjs-regression

Revert back to old commonjs behaviour.

Author: marvinhagemeister

config/node-commonjs.js

@@ -0,0 +1,21 @@
+const fs = require('fs');
+const path = require('path');
+
+// This file will only export default exports in commonjs bundles
+// instead of guarding them behind a `.default` property.
+
+const filePath = (file) => path.join(process.cwd(), 'dist', file);
+
+// Main entry
+fs.copyFileSync(filePath('index.js'), filePath('commonjs.js'));
+fs.copyFileSync(filePath('index.js.map'), filePath('commonjs.js.map'));
+
+const source = `module.exports = require('./commonjs').default;`;
+fs.writeFileSync(filePath('index.js'), source, 'utf-8');
+
+// JSX entry
+fs.copyFileSync(filePath('jsx.js'), filePath('jsx-entry.js'));
+fs.copyFileSync(filePath('jsx.js.map'), filePath('jsx-entry.js.map'));
+
+const sourceJsx = `module.exports = require('./jsx-entry').default;`;
+fs.writeFileSync(filePath('jsx.js'), sourceJsx, 'utf-8');

package.json

@@ -23,7 +23,7 @@
 	},
 	"scripts": {
 		"build": "npm run -s transpile && npm run -s transpile:jsx && npm run -s copy-typescript-definition",
-		"postbuild": "node ./config/node-13-exports.js",
+		"postbuild": "node ./config/node-13-exports.js && node ./config/node-commonjs.js",
 		"transpile": "microbundle src/index.js -f es,umd --target web --external preact",
 		"transpile:jsx": "microbundle src/jsx.js -o dist/jsx.js --target web --external none && microbundle dist/jsx.js -o dist/jsx.js -f cjs",
 		"copy-typescript-definition": "copyfiles -f src/*.d.ts dist",