Fix react native example and bootstrapping

docs/components/Homepage/index.js

@@ -43,13 +43,13 @@ import Footer from '../Footer';
 const Homepage = ({ users }) =>
   <div className="container">
     <Helmet title="Storybook - UI dev environment you'll love to use" />
-    {/* <Header currentSection="home" />*/}
+    {/* <Header currentSection="home" /> */}
     <Heading />
     <Demo />
-    {/* <Platforms />*/}
+    {/* <Platforms /> */}
     <MainLinks />
     <UsedBy users={users} />
-    {/* <Featured featuredStorybooks={featuredStorybooks} />*/}
+    {/* <Featured featuredStorybooks={featuredStorybooks} /> */}
     <Footer />
   </div>;
 

examples/test-cra/src/stories/ComponentWithRef.js

@@ -7,7 +7,13 @@ class ComponentWithRef extends Component {
   }
   scrollWidth = 0;
   render() {
-    return <div ref={r => (this.ref = r)} />;
+    return (
+      <div
+        ref={r => {
+          this.ref = r;
+        }}
+      />
+    );
   }
 }
 

lib/addons/src/index.js

@@ -1,16 +1,11 @@
-function channelError() {
-  throw new Error(
-    'Accessing nonexistent addons channel, see https://storybook.js.org/basics/faq/#why-is-there-no-addons-channel'
-  );
-}
-
 export class AddonStore {
   constructor() {
     this.loaders = {};
     this.panels = {};
     // this.channel should get overwritten by setChannel if package versions are
-    // correct and AddonStore is a proper singleton. If not, throw an error.
-    this.channel = { on: channelError, emit: channelError };
+    // correct and AddonStore is a proper singleton. If not, this will be null
+    // (currently required by @storybook/react-native getStorybookUI)
+    this.channel = null;
     this.preview = null;
     this.database = null;
   }

scripts/hoist-internals.js

@@ -20,10 +20,7 @@ const passingLog = fn => i => {
   fn(i);
   return i;
 };
-const getPackageNameOfFolder = sourcePath =>
-  fse
-    .readJson(path.join(sourcePath, 'package.json'))
-    .then(json => json.name.replace('@storybook/', ''));
+const getPackageOfFolder = sourcePath => fse.readJsonSync(path.join(sourcePath, 'package.json'));
 
 const task = getLernaPackages()
   .then(
@@ -60,14 +57,17 @@ const task = getLernaPackages()
             log.silly(prefix, 'found package path', item);
           })
         )
-        .map(sourcePath =>
-          getPackageNameOfFolder(sourcePath)
-            .then(
-              passingLog(packageName => {
-                log.silly(prefix, 'found package name', packageName);
-              })
-            )
-            .then(packageName => path.join(targetPath, packageName))
+        .map(sourcePath => ({
+          sourcePath,
+          packageJson: getPackageOfFolder(sourcePath),
+        }))
+        .filter(({ packageJson }) => !packageJson.private)
+        .map(({ sourcePath, packageJson }) =>
+          Promise.resolve(packageJson.name.replace('@storybook/', ''))
+            .then(packageName => {
+              log.silly(prefix, 'found package name', packageName);
+              return path.join(targetPath, packageName);
+            })
             .then(localTargetPath =>
               symlink(sourcePath, localTargetPath)
                 .then(