packager: buck library: expose asset content

Reviewed By: davidaurelio

Differential Revision: D4945778

fbshipit-source-id: ea132a3d284ed09c59c69afbdd7b707af9e521b9

Libraries/Image/AssetRegistry.js

@@ -13,15 +13,15 @@
 
 
 export type PackagerAsset = {
-  __packager_asset: boolean,
-  fileSystemLocation: string,
-  httpServerLocation: string,
-  width: number,
-  height: number,
-  scales: Array<number>,
-  hash: string,
-  name: string,
-  type: string,
+  +__packager_asset: boolean,
+  +fileSystemLocation: string,
+  +httpServerLocation: string,
+  +width: ?number,
+  +height: ?number,
+  +scales: Array<number>,
+  +hash: string,
+  +name: string,
+  +type: string,
 };
 
 

Libraries/Image/AssetSourceResolver.js

@@ -13,8 +13,8 @@
 
 export type ResolvedAssetSource = {
   __packager_asset: boolean,
-  width: number,
-  height: number,
+  width: ?number,
+  height: ?number,
   uri: string,
   scale: number,
 };

local-cli/bundle/getAssetDestPathAndroid.js

@@ -5,13 +5,18 @@
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
  */
+
 'use strict';
 
 const assetPathUtils = require('./assetPathUtils');
 const path = require('path');
 
-function getAssetDestPathAndroid(asset, scale) {
+import type {PackagerAsset} from '../../Libraries/Image/AssetRegistry';
+
+function getAssetDestPathAndroid(asset: PackagerAsset, scale: number): string {
   const androidFolder = assetPathUtils.getAndroidDrawableFolderName(asset, scale);
   const fileName =  assetPathUtils.getAndroidResourceIdentifier(asset);
   return path.join(androidFolder, fileName + '.' + asset.type);

local-cli/bundle/getAssetDestPathIOS.js

@@ -5,12 +5,17 @@
  * This source code is licensed under the BSD-style license found in the
  * LICENSE file in the root directory of this source tree. An additional grant
  * of patent rights can be found in the PATENTS file in the same directory.
+ *
+ * @flow
  */
+
 'use strict';
 
 const path = require('path');
 
-function getAssetDestPathIOS(asset, scale) {
+import type {PackagerAsset} from '../../Libraries/Image/AssetRegistry';
+
+function getAssetDestPathIOS(asset: PackagerAsset, scale: number): string {
   const suffix = scale === 1 ? '' : '@' + scale + 'x';
   const fileName = asset.name + suffix + '.' + asset.type;
   return path.join(asset.httpServerLocation.substr(1), fileName);

packager/src/Bundler/index.js

@@ -68,7 +68,7 @@ export type GetTransformOptions = (
   getDependenciesOf: string => Promise<Array<string>>,
 ) => Promise<ExtraTransformOptions>;
 
-type AssetDescriptor = {
+export type AssetDescriptor = {
   +__packager_asset: boolean,
   +httpServerLocation: string,
   +width: ?number,
@@ -79,7 +79,7 @@ type AssetDescriptor = {
   +type: string,
 };
 
-type ExtendedAssetDescriptor = AssetDescriptor & {
+export type ExtendedAssetDescriptor = AssetDescriptor & {
   +fileSystemLocation: string,
   +files: Array<string>,
 };

packager/src/ModuleGraph/types.flow.js

@@ -140,3 +140,11 @@ export type LibraryOptions = {|
   platform?: string,
   root: string,
 |};
+
+export type Base64Content = string;
+
+export type Library = {|
+  files: Array<TransformedFile>,
+  /* cannot be a Map because it's JSONified later on */
+  assets: {[destFilePath: string]: Base64Content},
+|};