Expose standalone build from @storybook/core

lib/core/src/server/standalone.js

@@ -0,0 +1,24 @@
+import { buildStaticStandalone } from './build-static';
+import { buildDevStandalone } from './build-dev';
+
+async function build(options = {}, frameworkOptions = {}) {
+  const { mode = 'dev' } = options;
+
+  const commonOptions = {
+    ...options,
+    ...frameworkOptions,
+    frameworkPresets: [...options.frameworkPresets, ...(frameworkOptions.frameworkPresets || [])],
+  };
+
+  if (mode === 'dev') {
+    return buildDevStandalone(commonOptions);
+  }
+
+  if (mode === 'static') {
+    return buildStaticStandalone(commonOptions);
+  }
+
+  throw new Error(`'mode' parameter should be either 'dev' or 'static'`);
+}
+
+export default build;

lib/core/standalone.js

@@ -0,0 +1,3 @@
+const build = require('./dist/server/standalone').default;
+
+module.exports = build;