packager: GlobalTransformCache: remove global variable

Reviewed By: davidaurelio

Differential Revision: D4449333

fbshipit-source-id: b9546b90d2fd5ddca9c1ee2719c6c454b60bdfa4

react-packager/react-packager.js

@@ -16,12 +16,14 @@ const Logger = require('./src/Logger');
 const debug = require('debug');
 const invariant = require('fbjs/lib/invariant');
 
+import type GlobalTransformCache from './src/lib/GlobalTransformCache';
 import type {Reporter} from './src/lib/reporting';
 
 exports.createServer = createServer;
 exports.Logger = Logger;
 
 type Options = {
+  globalTransformCache: ?GlobalTransformCache,
   nonPersistent: boolean,
   projectRoots: Array<string>,
   reporter?: Reporter,
@@ -29,6 +31,7 @@ type Options = {
 };
 
 type StrictOptions = {
+  globalTransformCache: ?GlobalTransformCache,
   nonPersistent: boolean,
   projectRoots: Array<string>,
   reporter: Reporter,

react-packager/src/Bundler/index.js

@@ -39,6 +39,7 @@ import type Module from '../node-haste/Module';
 import type ResolutionResponse from '../node-haste/DependencyGraph/ResolutionResponse';
 import type {Options as JSTransformerOptions, TransformOptions} from '../JSTransformer/worker/worker';
 import type {Reporter} from '../lib/reporting';
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 
 export type GetTransformOptions = (
   mainModuleName: string,
@@ -70,6 +71,7 @@ type Options = {
   cacheVersion: string,
   extraNodeModules: {},
   getTransformOptions?: GetTransformOptions,
+  globalTransformCache: ?GlobalTransformCache,
   moduleFormat: string,
   platforms: Array<string>,
   polyfillModuleNames: Array<string>,
@@ -150,6 +152,7 @@ class Bundler {
       blacklistRE: opts.blacklistRE,
       cache: this._cache,
       extraNodeModules: opts.extraNodeModules,
+      globalTransformCache: opts.globalTransformCache,
       minifyCode: this._transformer.minify,
       moduleFormat: opts.moduleFormat,
       platforms: opts.platforms,

react-packager/src/Resolver/index.js

@@ -23,6 +23,7 @@ import type {Options as TransformOptions} from '../JSTransformer/worker/worker';
 import type {Reporter} from '../lib/reporting';
 import type {TransformCode} from '../node-haste/Module';
 import type Cache from '../node-haste/Cache';
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 
 type MinifyCode = (filePath: string, code: string, map: SourceMap) =>
   Promise<{code: string, map: SourceMap}>;
@@ -32,6 +33,7 @@ type Options = {
   blacklistRE?: RegExp,
   cache: Cache,
   extraNodeModules?: {},
+  globalTransformCache: ?GlobalTransformCache,
   minifyCode: MinifyCode,
   platforms: Array<string>,
   polyfillModuleNames?: Array<string>,
@@ -56,6 +58,7 @@ class Resolver {
       assetExts: opts.assetExts,
       cache: opts.cache,
       extraNodeModules: opts.extraNodeModules,
+      globalTransformCache: opts.globalTransformCache,
       ignoreFilePath: function(filepath) {
         return filepath.indexOf('__tests__') !== -1 ||
           (opts.blacklistRE != null && opts.blacklistRE.test(filepath));

react-packager/src/Server/index.js

@@ -33,6 +33,7 @@ import type ResolutionResponse from '../node-haste/DependencyGraph/ResolutionRes
 import type Bundle from '../Bundler/Bundle';
 import type {Reporter} from '../lib/reporting';
 import type {GetTransformOptions} from '../Bundler';
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 
 const {
   createActionStartEntry,
@@ -59,6 +60,7 @@ type Options = {
   cacheVersion?: string,
   extraNodeModules?: {},
   getTransformOptions?: GetTransformOptions,
+  globalTransformCache: ?GlobalTransformCache,
   moduleFormat?: string,
   platforms?: Array<string>,
   polyfillModuleNames?: Array<string>,
@@ -207,6 +209,7 @@ class Server {
       cacheVersion: options.cacheVersion || '1.0',
       extraNodeModules: options.extraNodeModules || {},
       getTransformOptions: options.getTransformOptions,
+      globalTransformCache: options.globalTransformCache,
       moduleFormat: options.moduleFormat != null ? options.moduleFormat : 'haste',
       platforms: options.platforms || defaults.platforms,
       polyfillModuleNames: options.polyfillModuleNames || [],
@@ -236,6 +239,7 @@ class Server {
     const bundlerOpts = Object.create(this._opts);
     bundlerOpts.assetServer = this._assetServer;
     bundlerOpts.allowBundleUpdates = this._opts.watch;
+    bundlerOpts.globalTransformCache = options.globalTransformCache;
     bundlerOpts.watch = this._opts.watch;
     bundlerOpts.reporter = options.reporter;
     this._bundler = new Bundler(bundlerOpts);

react-packager/src/lib/GlobalTransformCache.js

@@ -257,17 +257,20 @@ class TransformProfileSet {
   }
 }
 
-/**
- * One can enable the global cache by calling configure() from a custom CLI
- * script. Eventually we may make it more flexible.
- */
 class GlobalTransformCache {
 
   _fetcher: KeyURIFetcher;
   _store: ?KeyResultStore;
   _profileSet: TransformProfileSet;
-  static _global: ?GlobalTransformCache;
 
+  /**
+   * For using the global cache one needs to have some kind of central key-value
+   * store that gets prefilled using keyOf() and the transformed results. The
+   * fetching function should provide a mapping of keys to URIs. The files
+   * referred by these URIs contains the transform results. Using URIs instead
+   * of returning the content directly allows for independent and parallel
+   * fetching of each result, that may be arbitrarily large JSON blobs.
+   */
   constructor(
     fetchResultURIs: FetchResultURIs,
     storeResults: ?StoreResults,
@@ -343,32 +346,6 @@ class GlobalTransformCache {
     }
   }
 
-  /**
-   * For using the global cache one needs to have some kind of central key-value
-   * store that gets prefilled using keyOf() and the transformed results. The
-   * fetching function should provide a mapping of keys to URIs. The files
-   * referred by these URIs contains the transform results. Using URIs instead
-   * of returning the content directly allows for independent fetching of each
-   * result.
-   */
-  static configure(
-    fetchResultURIs: FetchResultURIs,
-    storeResults: ?StoreResults,
-    profiles: Iterable<TransformProfile>,
-  ) {
-    GlobalTransformCache._global = new GlobalTransformCache(
-      fetchResultURIs,
-      storeResults,
-      profiles,
-    );
-  }
-
-  static get() {
-    return GlobalTransformCache._global;
-  }
-
 }
 
-GlobalTransformCache._global = null;
-
 module.exports = GlobalTransformCache;

react-packager/src/node-haste/Module.js

@@ -11,7 +11,6 @@
 
 'use strict';
 
-const GlobalTransformCache = require('../lib/GlobalTransformCache');
 const TransformCache = require('../lib/TransformCache');
 
 const crypto = require('crypto');
@@ -24,6 +23,7 @@ const jsonStableStringify = require('json-stable-stringify');
 const {join: joinPath, relative: relativePath, extname} = require('path');
 
 import type {TransformedCode, Options as TransformOptions} from '../JSTransformer/worker/worker';
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 import type {SourceMap} from '../lib/SourceMap';
 import type {ReadTransformProps} from '../lib/TransformCache';
 import type {Reporter} from '../lib/reporting';
@@ -51,14 +51,15 @@ export type Options = {
 };
 
 export type ConstructorArgs = {
+  cache: Cache,
+  depGraphHelpers: DependencyGraphHelpers,
+  globalTransformCache: ?GlobalTransformCache,
   file: string,
   moduleCache: ModuleCache,
-  cache: Cache,
-  transformCode: ?TransformCode,
-  transformCacheKey: ?string,
-  depGraphHelpers: DependencyGraphHelpers,
   options: Options,
   reporter: Reporter,
+  transformCacheKey: ?string,
+  transformCode: ?TransformCode,
 };
 
 class Module {
@@ -73,6 +74,7 @@ class Module {
   _depGraphHelpers: DependencyGraphHelpers;
   _options: Options;
   _reporter: Reporter;
+  _globalCache: ?GlobalTransformCache;
 
   _docBlock: Promise<{id?: string, moduleDocBlock: {[key: string]: mixed}}>;
   _readSourceCodePromise: Promise<string>;
@@ -81,14 +83,15 @@ class Module {
   static _globalCacheRetries: number;
 
   constructor({
-    file,
-    moduleCache,
     cache,
-    transformCode,
-    transformCacheKey,
     depGraphHelpers,
-    reporter,
+    file,
+    globalTransformCache,
+    moduleCache,
     options,
+    reporter,
+    transformCacheKey,
+    transformCode,
   }: ConstructorArgs) {
     if (!isAbsolutePath(file)) {
       throw new Error('Expected file to be absolute path but got ' + file);
@@ -108,6 +111,7 @@ class Module {
     this._depGraphHelpers = depGraphHelpers;
     this._options = options || {};
     this._reporter = reporter;
+    this._globalCache = globalTransformCache;
 
     this._readPromises = new Map();
   }
@@ -263,13 +267,13 @@ class Module {
     cacheProps: ReadTransformProps,
     callback: (error: ?Error, result: ?TransformedCode) => void,
   ) {
-    const globalCache = GlobalTransformCache.get();
+    const {_globalCache} = this;
     const noMoreRetries = Module._globalCacheRetries <= 0;
-    if (globalCache == null || noMoreRetries) {
+    if (_globalCache == null || noMoreRetries) {
       this._transformCodeForCallback(cacheProps, callback);
       return;
     }
-    globalCache.fetch(cacheProps, (globalCacheError, globalCachedResult) => {
+    _globalCache.fetch(cacheProps, (globalCacheError, globalCachedResult) => {
       if (globalCacheError != null && Module._globalCacheRetries > 0) {
         this._reporter.update({
           type: 'global_cache_error',
@@ -284,7 +288,7 @@ class Module {
         }
       }
       if (globalCachedResult == null) {
-        this._transformAndStoreCodeGlobally(cacheProps, globalCache, callback);
+        this._transformAndStoreCodeGlobally(cacheProps, _globalCache, callback);
         return;
       }
       callback(undefined, globalCachedResult);

react-packager/src/node-haste/ModuleCache.js

@@ -16,13 +16,11 @@ const Module = require('./Module');
 const Package = require('./Package');
 const Polyfill = require('./Polyfill');
 
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 import type {Reporter} from '../lib/reporting';
 import type Cache from './Cache';
 import type DependencyGraphHelpers from './DependencyGraph/DependencyGraphHelpers';
-import type {
-  TransformCode,
-  Options as ModuleOptions,
-} from './Module';
+import type {TransformCode, Options as ModuleOptions} from './Module';
 
 type GetClosestPackageFn = (filePath: string) => ?string;
 
@@ -32,6 +30,7 @@ class ModuleCache {
   _cache: Cache;
   _depGraphHelpers: DependencyGraphHelpers;
   _getClosestPackage: GetClosestPackageFn;
+  _globalTransformCache: ?GlobalTransformCache;
   _moduleCache: {[filePath: string]: Module};
   _moduleOptions: ModuleOptions;
   _packageCache: {[filePath: string]: Package};
@@ -47,22 +46,25 @@ class ModuleCache {
     depGraphHelpers,
     extractRequires,
     getClosestPackage,
+    globalTransformCache,
     moduleOptions,
+    reporter,
     transformCacheKey,
     transformCode,
-    reporter,
   }: {
     assetDependencies: Array<string>,
     cache: Cache,
     depGraphHelpers: DependencyGraphHelpers,
     getClosestPackage: GetClosestPackageFn,
+    globalTransformCache: ?GlobalTransformCache,
     moduleOptions: ModuleOptions,
+    reporter: Reporter,
     transformCacheKey: string,
     transformCode: TransformCode,
-    reporter: Reporter,
   }, platforms: Set<string>) {
     this._assetDependencies = assetDependencies;
     this._getClosestPackage = getClosestPackage;
+    this._globalTransformCache = globalTransformCache;
     this._cache = cache;
     this._depGraphHelpers = depGraphHelpers;
     this._moduleCache = Object.create(null);
@@ -78,14 +80,15 @@ class ModuleCache {
   getModule(filePath: string) {
     if (!this._moduleCache[filePath]) {
       this._moduleCache[filePath] = new Module({
-        file: filePath,
-        moduleCache: this,
         cache: this._cache,
-        transformCode: this._transformCode,
-        transformCacheKey: this._transformCacheKey,
         depGraphHelpers: this._depGraphHelpers,
+        file: filePath,
+        globalTransformCache: this._globalTransformCache,
+        moduleCache: this,
         options: this._moduleOptions,
         reporter: this._reporter,
+        transformCacheKey: this._transformCacheKey,
+        transformCode: this._transformCode,
       });
     }
     return this._moduleCache[filePath];

react-packager/src/node-haste/index.js

@@ -38,6 +38,7 @@ const {
 } = require('../Logger');
 
 import type {Options as TransformOptions} from '../JSTransformer/worker/worker';
+import type GlobalTransformCache from '../lib/GlobalTransformCache';
 import type {Reporter} from '../lib/reporting';
 import type {
   Options as ModuleOptions,
@@ -53,6 +54,7 @@ class DependencyGraph {
     extensions: Array<string>,
     extraNodeModules: ?Object,
     forceNodeFilesystemAPI: boolean,
+    globalTransformCache: ?GlobalTransformCache,
     ignoreFilePath: (filePath: string) => boolean,
     maxWorkers: ?number,
     mocksPattern: mixed,
@@ -87,6 +89,7 @@ class DependencyGraph {
     extensions,
     extraNodeModules,
     forceNodeFilesystemAPI,
+    globalTransformCache,
     ignoreFilePath,
     maxWorkers,
     mocksPattern,
@@ -109,6 +112,7 @@ class DependencyGraph {
     extensions?: ?Array<string>,
     extraNodeModules: ?Object,
     forceNodeFilesystemAPI?: boolean,
+    globalTransformCache: ?GlobalTransformCache,
     ignoreFilePath: (filePath: string) => boolean,
     maxWorkers?: ?number,
     mocksPattern?: mixed,
@@ -130,6 +134,7 @@ class DependencyGraph {
       extensions: extensions || ['js', 'json'],
       extraNodeModules,
       forceNodeFilesystemAPI: !!forceNodeFilesystemAPI,
+      globalTransformCache,
       ignoreFilePath: ignoreFilePath || (() => {}),
       maxWorkers,
       mocksPattern,
@@ -186,6 +191,7 @@ class DependencyGraph {
 
       this._moduleCache = new ModuleCache({
         cache: this._cache,
+        globalTransformCache: this._opts.globalTransformCache,
         transformCode: this._opts.transformCode,
         transformCacheKey: this._opts.transformCacheKey,
         depGraphHelpers: this._helpers,