add htmlclean support

package.json

@@ -20,6 +20,7 @@
     "README.md"
   ],
   "dependencies": {
+    "htmlclean": "^3.0.3",
     "lodash": "^4.9.0",
     "lodash-es": "^4.9.0",
     "rollup-pluginutils": "^1.3.1"

src/index.js

@@ -2,6 +2,7 @@ import { extname } from 'path';
 import { createFilter } from 'rollup-pluginutils';
 
 import template from 'lodash/template';
+import htmlclean from 'htmlclean';
 
 
 export default function( options = {} ) {
@@ -11,6 +12,10 @@ export default function( options = {} ) {
 
   const templateOptions = options.templateOptions || { variable: 'data' };
 
+  const useHtmlclean = options.htmlclean || false;
+
+  const htmlcleanOptions = options.htmlcleanOptions || { };
+
   return {
     transform( code, id ) {
       if ( !filter( id ) ) {
@@ -21,6 +26,10 @@ export default function( options = {} ) {
         return null;
       }
 
+      if ( useHtmlclean ) {
+        code = htmlclean(code, htmlcleanOptions);
+      }
+
       const tpl = template( code, templateOptions );
 
       let hasEscape = false;

test/sample/c.ejs

@@ -0,0 +1,3 @@
+ <div  >
+  <p>   <%= data %></p >
+</div>

test/test.js

@@ -27,4 +27,11 @@ describe( 'rollup-plugin-jst', () => {
       plugins: [ jst() ]
     }).then( executeBundle );
   });
+
+  it( 'compiles a component - htmlclean', () => {
+    return rollup({
+      entry: 'sample/c.ejs',
+      plugins: [ jst({ htmlclean: true }) ]
+    }).then( executeBundle );
+  });
 });