refactor: move angular source to /packages rather than modules/@angular

packages/compiler-cli/integrationtest/test/test_summaries.ts

@@ -0,0 +1,126 @@
+#!/usr/bin/env node
+/**
+ * @license
+ * Copyright Google Inc. All Rights Reserved.
+ *
+ * Use of this source code is governed by an MIT-style license that can be
+ * found in the LICENSE file at https://angular.io/license
+ */
+/* tslint:disable:no-console  */
+
+// Must be imported first, because angular2 decorators throws on load.
+import 'reflect-metadata';
+
+import * as path from 'path';
+import * as ts from 'typescript';
+import * as assert from 'assert';
+import {tsc} from '@angular/tsc-wrapped/src/tsc';
+import {AngularCompilerOptions, CodeGenerator, CompilerHostContext, NodeCompilerHostContext} from '@angular/compiler-cli';
+
+/**
+ * Main method.
+ * Standalone program that executes the real codegen and tests that
+ * ngsummary.json files are used for libraries.
+ */
+function main() {
+  console.log(`testing usage of ngsummary.json files in libraries...`);
+  const basePath = path.resolve(__dirname, '..');
+  const project = path.resolve(basePath, 'tsconfig-build.json');
+  const readFiles: string[] = [];
+  const writtenFiles: {fileName: string, content: string}[] = [];
+
+  class AssertingHostContext extends NodeCompilerHostContext {
+    readFile(fileName: string): string {
+      if (/.*\/node_modules\/.*/.test(fileName) && !/.*ngsummary\.json$/.test(fileName) &&
+          !/package\.json$/.test(fileName)) {
+        // Only allow to read summaries and package.json files from node_modules
+        return null;
+      }
+      readFiles.push(path.relative(basePath, fileName));
+      return super.readFile(fileName);
+    }
+    readResource(s: string): Promise<string> {
+      readFiles.push(path.relative(basePath, s));
+      return super.readResource(s);
+    }
+  }
+
+  const config = tsc.readConfiguration(project, basePath);
+  config.ngOptions.basePath = basePath;
+  // This flag tells ngc do not recompile libraries.
+  config.ngOptions.generateCodeForLibraries = false;
+
+  console.log(`>>> running codegen for ${project}`);
+  codegen(
+      config,
+      (host) => {
+        host.writeFile = (fileName: string, content: string) => {
+          fileName = path.relative(basePath, fileName);
+          writtenFiles.push({fileName, content});
+        };
+        return new AssertingHostContext();
+      })
+      .then((exitCode: any) => {
+        console.log(`>>> codegen done, asserting read files`);
+        assertSomeFileMatch(readFiles, /^node_modules\/.*\.ngsummary\.json$/);
+        assertNoFileMatch(readFiles, /^node_modules\/.*\.metadata.json$/);
+        assertNoFileMatch(readFiles, /^node_modules\/.*\.html$/);
+        assertNoFileMatch(readFiles, /^node_modules\/.*\.css$/);
+
+        assertNoFileMatch(readFiles, /^src\/.*\.ngsummary\.json$/);
+        assertSomeFileMatch(readFiles, /^src\/.*\.html$/);
+        assertSomeFileMatch(readFiles, /^src\/.*\.css$/);
+
+        console.log(`>>> asserting written files`);
+        assertWrittenFile(writtenFiles, /^src\/module\.ngfactory\.ts$/, /class MainModuleInjector/);
+
+        console.log(`done, no errors.`);
+        process.exit(exitCode);
+      })
+      .catch((e: any) => {
+        console.error(e.stack);
+        console.error('Compilation failed');
+        process.exit(1);
+      });
+}
+
+/**
+ * Simple adaption of tsc-wrapped main to just run codegen with a CompilerHostContext
+ */
+function codegen(
+    config: {parsed: ts.ParsedCommandLine, ngOptions: AngularCompilerOptions},
+    hostContextFactory: (host: ts.CompilerHost) => CompilerHostContext) {
+  const host = ts.createCompilerHost(config.parsed.options, true);
+
+  // HACK: patch the realpath to solve symlink issue here:
+  // https://github.com/Microsoft/TypeScript/issues/9552
+  // todo(misko): remove once facade symlinks are removed
+  host.realpath = (path) => path;
+
+  const program = ts.createProgram(config.parsed.fileNames, config.parsed.options, host);
+
+  return CodeGenerator.create(config.ngOptions, {
+                      } as any, program, host, hostContextFactory(host)).codegen();
+}
+
+function assertSomeFileMatch(fileNames: string[], pattern: RegExp) {
+  assert(
+      fileNames.some(fileName => pattern.test(fileName)),
+      `Expected some read files match ${pattern}`);
+}
+
+function assertNoFileMatch(fileNames: string[], pattern: RegExp) {
+  const matches = fileNames.filter(fileName => pattern.test(fileName));
+  assert(
+      matches.length === 0,
+      `Expected no read files match ${pattern}, but found: \n${matches.join('\n')}`);
+}
+
+function assertWrittenFile(
+    files: {fileName: string, content: string}[], filePattern: RegExp, contentPattern: RegExp) {
+  assert(
+      files.some(file => filePattern.test(file.fileName) && contentPattern.test(file.content)),
+      `Expected some written files for ${filePattern} and content ${contentPattern}`);
+}
+
+main();