Angular 2、SystemJS、node_modules 的路径问题

Question

我有一个小型 Angular 2.0 应用程序。它在我的机器上运行良好。它使用 SystemJS，我有一个 gulp 构建工具。问题是当我将它部署到子目录时，它会在根目录中查找

node-modules

。应该看看：

example.com/myapp/node_modules 

但它正在看着

example.com/node_modules 

相反。

tsconfig.json：

{
  "compilerOptions": {
    "target": "es5",
    "module": "commonjs",
    "moduleResolution": "node",?
    "sourceMap": true,
    "emitDecoratorMetadata": true,
    "experimentalDecorators": true,
    "removeComments": false,
    "noImplicitAny": true,
    "suppressImplicitAnyIndexErrors": true
  }
}

systemjs.config.js：

(function (global) {
  System.config({
    paths: {
      // paths serve as alias
      'npm:': 'node_modules/'
    },
    // map tells the System loader where to look for things
    map: {
      // our app is within the app folder
      app: 'app',

      // angular bundles
      '@angular/core': 'npm:@angular/core/bundles/core.umd.js',
      '@angular/common': 'npm:@angular/common/bundles/common.umd.js',
      '@angular/compiler': 'npm:@angular/compiler/bundles/compiler.umd.js',
      '@angular/platform-browser': 'npm:@angular/platform-browser/bundles/platform-browser.umd.js',
      '@angular/platform-browser-dynamic': 'npm:@angular/platform-browser-dynamic/bundles/platform-browser-dynamic.umd.js',
      '@angular/http': 'npm:@angular/http/bundles/http.umd.js',
      '@angular/router': 'npm:@angular/router/bundles/router.umd.js',
      '@angular/forms': 'npm:@angular/forms/bundles/forms.umd.js',

      // other libraries
      'rxjs': 'npm:rxjs'
    },
    // packages tells the System loader how to load when no filename and/or     no extension
    packages: {
      app: {
        main: './main.js',
        defaultExtension: 'js'
      },
      rxjs: {
        defaultExtension: 'js'
      }
    }
  });
})(this);

gulpfile.js：

const gulp = require('gulp');
const del = require('del');
const typescript = require('gulp-typescript');
const tscConfig = require('./tsconfig.json');
const sourcemaps = require('gulp-sourcemaps');

// clean the contents of the distribution directory
gulp.task('clean', function () {
    return del('dist/**/*');
});

// TypeScript compile
gulp.task('compile', ['clean', 'copy:libs', 'copy:assets'], function () {
    return gulp
        .src('app/**/*.ts')
        .pipe(sourcemaps.init())
        .pipe(typescript(tscConfig.compilerOptions))
        .pipe(sourcemaps.write('.'))
        .pipe(gulp.dest('dist/app'));
});

// copy dependencies
gulp.task('copy:libs', ['clean'], function() {
    return gulp.src([
        'node_modules/angular2/bundles/angular2-polyfills.js',
        'node_modules/systemjs/dist/system.src.js',
        'node_modules/rxjs/bundles/Rx.js',
        'node_modules/angular2/bundles/angular2.dev.js',
        'node_modules/angular2/bundles/router.dev.js',
        'node_modules/**/*.js',
        'node_modules/**/*.css'
    ])
        .pipe(gulp.dest('dist/node_modules'))
});

// copy static assets - i.e. non TypeScript compiled source
gulp.task('copy:assets', ['clean'], function() {
    return gulp.src(['app/**/*', 'index.html', 'systemjs.config.js',         '!app/**/*.ts'], { base : './' })
        .pipe(gulp.dest('dist'))
});

gulp.task('build', ['compile']);
gulp.task('default', ['build']);

Answer 1

您应该将

sourceRoot="myapp/"

放入 tsconfig.json。这个选项

指定调试器应定位 TypeScript 文件的位置 而不是源位置。如果源将是，请使用此标志 运行时位于与设计时不同的位置。 指定的位置将嵌入到 sourceMap 中以引导 源文件所在的调试器。