Merge branch 'master' of https://github.com/rollup/rollup

README.md

@@ -36,6 +36,8 @@
 
 Rollup can be used via a [JavaScript API](https://github.com/rollup/rollup/wiki/JavaScript-API) or a [Command Line Interface](https://github.com/rollup/rollup/wiki/Command-Line-Interface). Install with `npm install -g rollup` and run `rollup --help` to get started.
 
+If the command line's not your jam, there's also a [step-by-step tutorial video series](https://code.lengstorf.com/learn-rollup-js/) (with accompanying written walkthrough).
+
 [Dive into the wiki](https://github.com/rollup/rollup/wiki) when you're ready to learn more about Rollup and ES6 modules.
 
 

src/Bundle.js

@@ -31,11 +31,10 @@ export default class Bundle {
 
 		this.plugins = ensureArray( options.plugins );
 
-		this.plugins.forEach( plugin => {
-			if ( plugin.options ) {
-				options = plugin.options( options ) || options;
-			}
-		});
+		options = this.plugins.reduce( ( acc, plugin ) => {
+			if ( plugin.options ) return plugin.options( acc ) || acc;
+			return acc;
+		}, options);
 
 		this.entry = options.entry;
 		this.entryId = null;