Remove buildBundle() method from metro public API

Reviewed By: mjesun

Differential Revision: D6208701

fbshipit-source-id: 9e2f20df778cdaad542466692256ca4740a7fb38

README.md

@@ -23,7 +23,7 @@ Within the object returned, two main methods are given:
 
 ## Method `createServer(serverOptions)`
 
-Given a set of options (same ones as the `buildBundle`, a `metro-server` will be returned. You can then hook this into a proper HTTP(S) server by using its `processRequest` method:
+Given a set of options (same ones as the `build` method), a `metro-server` will be returned. You can then hook this into a proper HTTP(S) server by using its `processRequest` method:
 
 
 ```js
@@ -70,9 +70,9 @@ app.use(
 app.listen(8081);
 ```
 
-## Method `buildBundle(serverOptions, bundleOptions)`
+## Method `build(serverOptions, bundleOptions)`
 
-Given a set of options that you would typically pass to a server, plus a set of options specific to the bundle itself, a bundle will be built. This is useful at build time.
+Given a set of options that you would typically pass to a server, plus a set of options specific to the bundle itself, a bundle will be built. The return value is a Promise that resolves to an object with two properties, `code` and `map`. This is useful at build time.
 
 # Available options
 

packages/metro-bundler/src/index.js

@@ -101,24 +101,23 @@ function assertPublicBundleOptions(bo: mixed): PublicBundleOptions {
   return {entryFile, ...bo};
 }
 
-exports.buildBundle = function(
+exports.build = async function(
   options: Options,
   bundleOptions: PublicBundleOptions,
-) {
+): Promise<{code: string, map: string}> {
   var server = createNonPersistentServer(options);
   const ServerClass = require('./Server');
-  return server
-    .buildBundle({
-      ...ServerClass.DEFAULT_BUNDLE_OPTIONS,
-      ...assertPublicBundleOptions(bundleOptions),
-    })
-    .then(p => {
-      server.end();
-      return p;
-    });
+
+  const result = await server.build({
+    ...ServerClass.DEFAULT_BUNDLE_OPTIONS,
+    ...assertPublicBundleOptions(bundleOptions),
+  });
+  server.end();
+
+  return result;
 };
 
-exports.getOrderedDependencyPaths = function(
+exports.getOrderedDependencyPaths = async function(
   options: Options,
   depOptions: {
     +entryFile: string,
@@ -127,12 +126,13 @@ exports.getOrderedDependencyPaths = function(
     +minify: boolean,
     +generateSourceMaps: boolean,
   },
-) {
+): Promise<Array<string>> {
   var server = createNonPersistentServer(options);
-  return server.getOrderedDependencyPaths(depOptions).then(function(paths) {
-    server.end();
-    return paths;
-  });
+
+  const paths = await server.getOrderedDependencyPaths(depOptions);
+  server.end();
+
+  return paths;
 };
 
 function enableDebug() {

packages/metro-bundler/src/integration_tests/__tests__/__snapshots__/basic_bundle-test.js.snap

@@ -135,7 +135,7 @@ var Bar = require(5); // 5 = ./Bar
 var Foo = require(6); // 6 = ./Foo
 
 module.exports = { Foo: Foo, Bar: Bar };
-}, 0);
+}, 4);
 __d(/* /Bar.js */function(global, require, module, exports) {
 
 'use strict';
@@ -158,7 +158,7 @@ __d(/* /AssetRegistry.js */function(global, require, module, exports) {
 
 'use strict';
 }, 8);
-;require(0);"
+require(4);"
 `;
 
 exports[`basic_bundle bundles package without polyfills 1`] = `
@@ -280,7 +280,7 @@ var Bar = require(3); // 3 = ./Bar
 var Foo = require(4); // 4 = ./Foo
 
 module.exports = { Foo: Foo, Bar: Bar };
-}, 0);
+}, 2);
 __d(/* /Bar.js */function(global, require, module, exports) {
 
 'use strict';
@@ -303,5 +303,5 @@ __d(/* /AssetRegistry.js */function(global, require, module, exports) {
 
 'use strict';
 }, 6);
-;require(0);"
+require(2);"
 `;

packages/metro-bundler/src/integration_tests/__tests__/basic_bundle-test.js

@@ -97,7 +97,7 @@ describe('basic_bundle', () => {
   }
 
   it('bundles package with polyfills', async () => {
-    const bundleWithPolyfills = await Metro.buildBundle(
+    const bundleWithPolyfills = await Metro.build(
       {
         assetRegistryPath: ASSET_REGISTRY_PATH,
         getPolyfills: () => [polyfill1, polyfill2],
@@ -112,11 +112,11 @@ describe('basic_bundle', () => {
         platform: 'ios',
       },
     );
-    verifyResultCode(bundleWithPolyfills.getSource());
+    verifyResultCode(bundleWithPolyfills.code);
   });
 
   it('bundles package without polyfills', async () => {
-    const bundleWithoutPolyfills = await Metro.buildBundle(
+    const bundleWithoutPolyfills = await Metro.build(
       {
         assetRegistryPath: ASSET_REGISTRY_PATH,
         getPolyfills: () => [],
@@ -131,6 +131,6 @@ describe('basic_bundle', () => {
         platform: 'ios',
       },
     );
-    verifyResultCode(bundleWithoutPolyfills.getSource());
+    verifyResultCode(bundleWithoutPolyfills.code);
   });
 });