44 lines
1.5 KiB
TypeScript
44 lines
1.5 KiB
TypeScript
/**
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* @license
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* Copyright Google Inc. All Rights Reserved.
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*
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* Use of this source code is governed by an MIT-style license that can be
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* found in the LICENSE file at https://angular.io/license
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*/
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/**
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* Extract i18n messages from source code
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*/
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// Must be imported first, because angular2 decorators throws on load.
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import 'reflect-metadata';
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import * as compiler from '@angular/compiler';
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import * as tsc from '@angular/tsc-wrapped';
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import * as ts from 'typescript';
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import {excludeFilePattern} from './codegen';
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import {CompilerHost, ModuleResolutionHostAdapter} from './compiler_host';
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export class Extractor {
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constructor(
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private ngExtractor: compiler.Extractor, private ngCompilerHost: CompilerHost,
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private program: ts.Program) {}
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extract(): Promise<compiler.MessageBundle> {
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return this.ngExtractor.extract(this.program.getSourceFiles().map(
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sf => this.ngCompilerHost.getCanonicalFileName(sf.fileName)));
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}
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static create(
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options: tsc.AngularCompilerOptions, translationsFormat: string, program: ts.Program,
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moduleResolverHost: ts.ModuleResolutionHost, ngCompilerHost?: CompilerHost): Extractor {
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if (!ngCompilerHost)
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ngCompilerHost =
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new CompilerHost(program, options, new ModuleResolutionHostAdapter(moduleResolverHost));
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const {extractor: ngExtractor} = compiler.Extractor.create(
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ngCompilerHost, {excludeFilePattern: excludeFilePattern(options)});
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return new Extractor(ngExtractor, ngCompilerHost, program);
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}
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}
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