feat(i18n): pass translation config directly into ngc (#10622)

tools/@angular/tsc-wrapped/index.ts

@@ -2,5 +2,6 @@ export {MetadataWriterHost, TsickleHost} from './src/compiler_host';
 export {CodegenExtension, main} from './src/main';
 
 export {default as AngularCompilerOptions} from './src/options';
+export * from './src/cli_options';
 export * from './src/collector';
 export * from './src/schema';

tools/@angular/tsc-wrapped/src/cli_options.ts

@@ -0,0 +1,34 @@
+/**
+ * @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
+ */
+export class CliOptions {
+  public basePath: string;
+  constructor({basePath = null}: {basePath?: string}) { this.basePath = basePath; }
+}
+
+export class I18nExtractionCliOptions extends CliOptions {
+  public i18nFormat: string;
+
+  constructor({i18nFormat = null}: {i18nFormat?: string}) {
+    super({});
+    this.i18nFormat = i18nFormat;
+  }
+}
+
+export class NgcCliOptions extends CliOptions {
+  public i18nFormat: string;
+  public i18nFile: string;
+  public locale: string;
+
+  constructor({i18nFormat = null, i18nFile = null, locale = null, basePath = null}:
+                  {i18nFormat?: string, i18nFile?: string, locale?: string, basePath?: string}) {
+    super({basePath: basePath});
+    this.i18nFormat = i18nFormat;
+    this.i18nFile = i18nFile;
+    this.locale = locale;
+  }
+}

tools/@angular/tsc-wrapped/src/main.ts

@@ -6,11 +6,14 @@ import {check, tsc} from './tsc';
 
 import NgOptions from './options';
 import {MetadataWriterHost, TsickleHost} from './compiler_host';
+import {CliOptions} from './cli_options';
 
-export type CodegenExtension = (ngOptions: NgOptions, program: ts.Program, host: ts.CompilerHost) =>
-    Promise<void>;
+export type CodegenExtension =
+    (ngOptions: NgOptions, cliOptions: CliOptions, program: ts.Program, host: ts.CompilerHost) =>
+        Promise<void>;
 
-export function main(project: string, basePath?: string, codegen?: CodegenExtension): Promise<any> {
+export function main(
+    project: string, cliOptions: CliOptions, codegen?: CodegenExtension): Promise<any> {
   try {
     let projectDir = project;
     if (fs.lstatSync(project).isFile()) {
@@ -18,7 +21,7 @@ export function main(project: string, basePath?: string, codegen?: CodegenExtens
     }
 
     // file names in tsconfig are resolved relative to this absolute path
-    basePath = path.resolve(process.cwd(), basePath || projectDir);
+    const basePath = path.resolve(process.cwd(), cliOptions.basePath || projectDir);
 
     // read the configuration options from wherever you store them
     const {parsed, ngOptions} = tsc.readConfiguration(project, basePath);
@@ -32,7 +35,7 @@ export function main(project: string, basePath?: string, codegen?: CodegenExtens
     if (ngOptions.skipTemplateCodegen || !codegen) {
       codegen = () => Promise.resolve(null);
     }
-    return codegen(ngOptions, program, host).then(() => {
+    return codegen(ngOptions, cliOptions, program, host).then(() => {
       // Create a new program since codegen files were created after making the old program
       const newProgram = ts.createProgram(parsed.fileNames, parsed.options, host, program);
       tsc.typeCheck(host, newProgram);
@@ -59,11 +62,11 @@ export function main(project: string, basePath?: string, codegen?: CodegenExtens
 // CLI entry point
 if (require.main === module) {
   const args = require('minimist')(process.argv.slice(2));
-  main(args.p || args.project || '.', args.basePath)
-      .then(exitCode => process.exit(exitCode))
-      .catch(e => {
-        console.error(e.stack);
-        console.error('Compilation failed');
-        process.exit(1);
-      });
+  const project = args.p || args.project || '.';
+  const cliOptions = new CliOptions(args);
+  main(project, cliOptions).then((exitCode: any) => process.exit(exitCode)).catch((e: any) => {
+    console.error(e.stack);
+    console.error('Compilation failed');
+    process.exit(1);
+  });
 }