support for addon/engine

.hbs-minifyrc.js

@@ -0,0 +1,16 @@
+'use strict';
+
+module.exports = {
+  /*
+    Possible values
+      * 'all' => all nodes will be considered as whitelisted, hence whitespace will be preserved for the same.
+      * ['div', 'span'] => whitespace will be preserved for div and span.
+      * [] => An empty array is specified to strip all the whitespaces.
+  */
+  whiteList: {
+    elementNodes: ['pre'],
+    elementClassNames: 'all',
+    components: 'all',
+    partials: 'all'
+  }
+}

index.js

@@ -5,20 +5,18 @@ module.exports = {
   name: 'ember-hbs-minifier',
 
   setupPreprocessorRegistry(type, registry) {
-    if (type === 'parent') {
-      let config;
-      try {
-        let path = this.isDevelopingAddon() ? `${this.project.root}/tests/dummy` : this.project.root;
-        config = require(`${path}/.hbs-minifyrc.js`);
-      } catch (error) {
-        throw error;
-      }
-      let HbsMinifierPlugin = require('./hbs-minifier-plugin')(config.whiteList);
-      registry.add('htmlbars-ast-plugin', {
-        name: 'hbs-minifier-plugin',
-        plugin: HbsMinifierPlugin,
-        baseDir() { return __dirname; }
-      });
+    let config;
+    try {
+      let path = this.isDevelopingAddon() ? `${this.parent.root}/tests/dummy` : this.parent.root;
+      config = require(`${path}/.hbs-minifyrc.js`);
+    } catch (error) {
+      throw error;
     }
+    let HbsMinifierPlugin = require('./hbs-minifier-plugin')(config.whiteList);
+    registry.add('htmlbars-ast-plugin', {
+      name: 'hbs-minifier-plugin',
+      plugin: HbsMinifierPlugin,
+      baseDir() { return __dirname; }
+    });
   }
 };