USECASE /需求/问题：
主机供应商和polyfills在CDN中单独捆绑，以便可以在多个angular2应用程序中重复使用它们。供应商和polyfills软件包将使用webpack 2构建为单独的angular2应用程序，结果软件包将托管在CDN中，并由N angular2应用程序重用。
我最喜欢的是什么？
使用来自angular2 webpack2 starter的入门项目使用webpack创建了一个大小合适的ang2项目，使用prod模式构建，运行正常。
我们有一个内部CDN，所以我们决定单独托管供应商和pollyfills，托管时可以被其他angular2项目重复使用。
创建了一个专门构建供应商和polyfill的ang2项目
我的代码是什么？
基本上我相信我在webpack配置中的某个地方搞乱了。
这是来自大小的angular2项目的webpack.common.js
/**
* @author: @AngularClass
*/
const webpack = require('webpack');
const helpers = require('./helpers');
/*
* Webpack Plugins
*/
// problem with copy-webpack-plugin
const AssetsPlugin = require('assets-webpack-plugin');
const NormalModuleReplacementPlugin = require('webpack/lib/NormalModuleReplacementPlugin');
const ContextReplacementPlugin = require('webpack/lib/ContextReplacementPlugin');
const CommonsChunkPlugin = require('webpack/lib/optimize/CommonsChunkPlugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const HtmlElementsPlugin = require('./html-elements-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const LoaderOptionsPlugin = require('webpack/lib/LoaderOptionsPlugin');
const ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin');
const ngcWebpack = require('ngc-webpack');
/*
* Webpack Constants
*/
const HMR = helpers.hasProcessFlag('hot');
const AOT = helpers.hasNpmFlag('aot');
const METADATA = {
title: 'Angular2 Webpack Starter by @gdi2290 from @AngularClass',
baseUrl: '/',
isDevServer: helpers.isWebpackDevServer()
};
/*
* Webpack configuration
*
* See: http://webpack.github.io/docs/configuration.html#cli
*/
module.exports = function (options) {
isProd = options.env === 'production';
return {
recordsInputPath: 'webpack-module-records.json',
/*
* Cache generated modules and chunks to improve performance for multiple incremental builds.
* This is enabled by default in watch mode.
* You can pass false to disable it.
*
* See: http://webpack.github.io/docs/configuration.html#cache
*/
//cache: false,
/*
* The entry point for the bundle
* Our Angular.js app
*
* See: http://webpack.github.io/docs/configuration.html#entry
*/
entry: {
'polyfills': './src/polyfills.browser.ts',
'vendor': './src/vendor.browser.ts',
'main': AOT ? './src/main.browser.aot.ts' :
'./src/main.browser.ts'
},
/*
* Options affecting the resolving of modules.
*
* See: http://webpack.github.io/docs/configuration.html#resolve
*/
resolve: {
/*
* An array of extensions that should be used to resolve modules.
*
* See: http://webpack.github.io/docs/configuration.html#resolve-extensions
*/
extensions: ['.ts', '.js', '.json'],
// An array of directory names to be resolved to the current directory
modules: [helpers.root('src'), helpers.root('node_modules')],
},
/*
* Options affecting the normal modules.
*
* See: http://webpack.github.io/docs/configuration.html#module
*/
module: {
rules: [
/*
* Typescript loader support for .ts and Angular 2 async routes via .async.ts
* Replace templateUrl and stylesUrl with require()
*
* See: https://github.com/s-panferov/awesome-typescript-loader
* See: https://github.com/TheLarkInn/angular2-template-loader
*/
{
test: /\.ts$/,
use: [
'@angularclass/hmr-loader?pretty=' + !isProd + '&prod=' + isProd,
'awesome-typescript-loader?{configFileName: "tsconfig.webpack.json"}',
'angular2-template-loader',
{
loader: 'ng-router-loader',
options: {
loader: 'async-system',
genDir: 'compiled',
aot: AOT
}
}
],
exclude: [/\.(spec|e2e)\.ts$/]
},
/*
* Json loader support for *.json files.
*
* See: https://github.com/webpack/json-loader
*/
{
test: /\.json$/,
use: 'json-loader'
},
/*
* to string and css loader support for *.css files (from Angular components)
* Returns file content as string
*
*/
{
test: /\.css$/,
use: ['to-string-loader', 'css-loader'],
exclude: [helpers.root('src', 'styles')]
},
/*
* to string and sass loader support for *.scss files (from Angular components)
* Returns compiled css content as string
*
*/
{
test: /\.scss$/,
use: ['to-string-loader', 'css-loader', 'sass-loader'],
exclude: [helpers.root('src', 'styles')]
},
/* Raw loader support for *.html
* Returns file content as string
*
* See: https://github.com/webpack/raw-loader
*/
{
test: /\.html$/,
use: 'raw-loader',
exclude: [helpers.root('src/index.html')]
},
/* File loader for supporting images, for example, in CSS files.
*/
{
test: /\.(jpg|png|gif)$/,
use: 'file-loader'
},
],
},
/*
* Add additional plugins to the compiler.
*
* See: http://webpack.github.io/docs/configuration.html#plugins
*/
plugins: [
new AssetsPlugin({
path: helpers.root('dist'),
filename: 'webpack-assets.json',
prettyPrint: true
}),
/*
* Plugin: ForkCheckerPlugin
* Description: Do type checking in a separate process, so webpack don't need to wait.
*
* See: https://github.com/s-panferov/awesome-typescript-loader#forkchecker-boolean-defaultfalse
*/
new CheckerPlugin(),
/*
* Plugin: CommonsChunkPlugin
* Description: Shares common code between the pages.
* It identifies common modules and put them into a commons chunk.
*
* See: https://webpack.github.io/docs/list-of-plugins.html#commonschunkplugin
* See: https://github.com/webpack/docs/wiki/optimization#multi-page-app
*/
// This enables tree shaking of the vendor modules
new webpack.optimize.CommonsChunkPlugin({
name: ['app', 'vendor', 'polyfills'],
minChunks: Infinity
}),
/**
* Plugin: ContextReplacementPlugin
* Description: Provides context to Angular's use of System.import
*
* See: https://webpack.github.io/docs/list-of-plugins.html#contextreplacementplugin
* See: https://github.com/angular/angular/issues/11580
*/
new ContextReplacementPlugin(
// The (\\|\/) piece accounts for path separators in *nix and Windows
/angular(\\|\/)core(\\|\/)src(\\|\/)linker/,
helpers.root('src'), // location of your src
{
// your Angular Async Route paths relative to this root directory
}
),
/*
* Plugin: CopyWebpackPlugin
* Description: Copy files and directories in webpack.
*
* Copies project static assets.
*
* See: https://www.npmjs.com/package/copy-webpack-plugin
*/
new CopyWebpackPlugin([
{ from: 'src/assets', to: 'assets' },
{ from: 'src/meta' }
]),
/*
* Plugin: HtmlWebpackPlugin
* Description: Simplifies creation of HTML files to serve your webpack bundles.
* This is especially useful for webpack bundles that include a hash in the filename
* which changes every compilation.
*
* See: https://github.com/ampedandwired/html-webpack-plugin
*/
new HtmlWebpackPlugin({
template: 'src/index.html',
title: METADATA.title,
chunksSortMode: 'dependency',
metadata: METADATA,
inject: 'head'
}),
/*
* Plugin: ScriptExtHtmlWebpackPlugin
* Description: Enhances html-webpack-plugin functionality
* with different deployment options for your scripts including:
*
* See: https://github.com/numical/script-ext-html-webpack-plugin
*/
new ScriptExtHtmlWebpackPlugin({
defaultAttribute: 'defer'
}),
/*
* Plugin: HtmlElementsPlugin
* Description: Generate html tags based on javascript maps.
*
* If a publicPath is set in the webpack output configuration, it will be automatically added to
* href attributes, you can disable that by adding a "=href": false property.
* You can also enable it to other attribute by settings "=attName": true.
*
* The configuration supplied is map between a location (key) and an element definition object (value)
* The location (key) is then exported to the template under then htmlElements property in webpack configuration.
*
* Example:
* Adding this plugin configuration
* new HtmlElementsPlugin({
* headTags: { ... }
* })
*
* Means we can use it in the template like this:
* <%= webpackConfig.htmlElements.headTags %>
*
* Dependencies: HtmlWebpackPlugin
*/
new HtmlElementsPlugin({
headTags: require('./head-config.common')
}),
/**
* Plugin LoaderOptionsPlugin (experimental)
*
* See: https://gist.github.com/sokra/27b24881210b56bbaff7
*/
new LoaderOptionsPlugin({}),
// Fix Angular 2
new NormalModuleReplacementPlugin(
/facade(\\|\/)async/,
helpers.root('node_modules/@angular/core/src/facade/async.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)collection/,
helpers.root('node_modules/@angular/core/src/facade/collection.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)errors/,
helpers.root('node_modules/@angular/core/src/facade/errors.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)lang/,
helpers.root('node_modules/@angular/core/src/facade/lang.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)math/,
helpers.root('node_modules/@angular/core/src/facade/math.js')
),
new ngcWebpack.NgcWebpackPlugin({
disabled: !AOT,
tsConfig: helpers.root('tsconfig.webpack.json'),
resourceOverride: helpers.root('config/resource-override.js')
})
],
/*
* Include polyfills or mocks for various node stuff
* Description: Node configuration
*
* See: https://webpack.github.io/docs/configuration.html#node
*/
node: {
global: true,
crypto: 'empty',
process: true,
module: false,
clearImmediate: false,
setImmediate: false
}
};
}
以下是来自ang2项目的常用配置，用于构建供应商和polyfills
/**
* @author: @AngularClass
*/
const webpack = require('webpack');
const helpers = require('./helpers');
/*
* Webpack Plugins
*/
// problem with copy-webpack-plugin
const AssetsPlugin = require('assets-webpack-plugin');
const NormalModuleReplacementPlugin = require('webpack/lib/NormalModuleReplacementPlugin');
const ContextReplacementPlugin = require('webpack/lib/ContextReplacementPlugin');
const CommonsChunkPlugin = require('webpack/lib/optimize/CommonsChunkPlugin');
const CopyWebpackPlugin = require('copy-webpack-plugin');
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
const HtmlElementsPlugin = require('./html-elements-plugin');
const HtmlWebpackPlugin = require('html-webpack-plugin');
const LoaderOptionsPlugin = require('webpack/lib/LoaderOptionsPlugin');
const ScriptExtHtmlWebpackPlugin = require('script-ext-html-webpack-plugin');
const ngcWebpack = require('ngc-webpack');
/*
* Webpack Constants
*/
const HMR = helpers.hasProcessFlag('hot');
const AOT = helpers.hasNpmFlag('aot');
const METADATA = {
title: 'Angular2 Webpack Starter by @gdi2290 from @AngularClass',
baseUrl: '/',
isDevServer: helpers.isWebpackDevServer()
};
/*
* Webpack configuration
*
* See: http://webpack.github.io/docs/configuration.html#cli
*/
module.exports = function (options) {
isProd = options.env === 'production';
return {
recordsInputPath: 'webpack-module-records.json',
/*
* Cache generated modules and chunks to improve performance for multiple incremental builds.
* This is enabled by default in watch mode.
* You can pass false to disable it.
*
* See: http://webpack.github.io/docs/configuration.html#cache
*/
//cache: false,
/*
* The entry point for the bundle
* Our Angular.js app
*
* See: http://webpack.github.io/docs/configuration.html#entry
*/
entry: {
'polyfills': './src/polyfills.browser.ts',
'vendor': './src/vendor.browser.ts',
'main': AOT ? './src/main.browser.aot.ts' :
'./src/main.browser.ts'
},
/*
* Options affecting the resolving of modules.
*
* See: http://webpack.github.io/docs/configuration.html#resolve
*/
resolve: {
/*
* An array of extensions that should be used to resolve modules.
*
* See: http://webpack.github.io/docs/configuration.html#resolve-extensions
*/
extensions: ['.ts', '.js', '.json'],
// An array of directory names to be resolved to the current directory
modules: [helpers.root('src'), helpers.root('node_modules')],
},
/*
* Options affecting the normal modules.
*
* See: http://webpack.github.io/docs/configuration.html#module
*/
module: {
rules: [
/*
* Typescript loader support for .ts and Angular 2 async routes via .async.ts
* Replace templateUrl and stylesUrl with require()
*
* See: https://github.com/s-panferov/awesome-typescript-loader
* See: https://github.com/TheLarkInn/angular2-template-loader
*/
{
test: /\.ts$/,
use: [
'@angularclass/hmr-loader?pretty=' + !isProd + '&prod=' + isProd,
'awesome-typescript-loader?{configFileName: "tsconfig.webpack.json"}',
'angular2-template-loader',
{
loader: 'ng-router-loader',
options: {
loader: 'async-system',
genDir: 'compiled',
aot: AOT
}
}
],
exclude: [/\.(spec|e2e)\.ts$/]
},
/*
* Json loader support for *.json files.
*
* See: https://github.com/webpack/json-loader
*/
{
test: /\.json$/,
use: 'json-loader'
},
/*
* to string and css loader support for *.css files (from Angular components)
* Returns file content as string
*
*/
{
test: /\.css$/,
use: ['to-string-loader', 'css-loader'],
exclude: [helpers.root('src', 'styles')]
},
/*
* to string and sass loader support for *.scss files (from Angular components)
* Returns compiled css content as string
*
*/
{
test: /\.scss$/,
use: ['to-string-loader', 'css-loader', 'sass-loader'],
exclude: [helpers.root('src', 'styles')]
},
/* Raw loader support for *.html
* Returns file content as string
*
* See: https://github.com/webpack/raw-loader
*/
{
test: /\.html$/,
use: 'raw-loader',
exclude: [helpers.root('src/index.html')]
},
/* File loader for supporting images, for example, in CSS files.
*/
{
test: /\.(jpg|png|gif)$/,
use: 'file-loader'
},
],
},
/*
* Add additional plugins to the compiler.
*
* See: http://webpack.github.io/docs/configuration.html#plugins
*/
plugins: [
new AssetsPlugin({
path: helpers.root('dist'),
filename: 'webpack-assets.json',
prettyPrint: true
}),
/*
* Plugin: ForkCheckerPlugin
* Description: Do type checking in a separate process, so webpack don't need to wait.
*
* See: https://github.com/s-panferov/awesome-typescript-loader#forkchecker-boolean-defaultfalse
*/
new CheckerPlugin(),
/*
* Plugin: CommonsChunkPlugin
* Description: Shares common code between the pages.
* It identifies common modules and put them into a commons chunk.
*
* See: https://webpack.github.io/docs/list-of-plugins.html#commonschunkplugin
* See: https://github.com/webpack/docs/wiki/optimization#multi-page-app
*/
// This enables tree shaking of the vendor modules
new webpack.optimize.CommonsChunkPlugin({
name: ['app', 'vendor', 'polyfills'],
minChunks: Infinity
}),
/**
* Plugin: ContextReplacementPlugin
* Description: Provides context to Angular's use of System.import
*
* See: https://webpack.github.io/docs/list-of-plugins.html#contextreplacementplugin
* See: https://github.com/angular/angular/issues/11580
*/
new ContextReplacementPlugin(
// The (\\|\/) piece accounts for path separators in *nix and Windows
/angular(\\|\/)core(\\|\/)src(\\|\/)linker/,
helpers.root('src'), // location of your src
{
// your Angular Async Route paths relative to this root directory
}
),
/*
* Plugin: CopyWebpackPlugin
* Description: Copy files and directories in webpack.
*
* Copies project static assets.
*
* See: https://www.npmjs.com/package/copy-webpack-plugin
*/
new CopyWebpackPlugin([
{ from: 'src/assets', to: 'assets' },
{ from: 'src/meta' }
]),
/*
* Plugin: HtmlWebpackPlugin
* Description: Simplifies creation of HTML files to serve your webpack bundles.
* This is especially useful for webpack bundles that include a hash in the filename
* which changes every compilation.
*
* See: https://github.com/ampedandwired/html-webpack-plugin
*/
new HtmlWebpackPlugin({
template: 'src/index.html',
title: METADATA.title,
chunksSortMode: 'dependency',
metadata: METADATA,
inject: 'head'
}),
/*
* Plugin: ScriptExtHtmlWebpackPlugin
* Description: Enhances html-webpack-plugin functionality
* with different deployment options for your scripts including:
*
* See: https://github.com/numical/script-ext-html-webpack-plugin
*/
new ScriptExtHtmlWebpackPlugin({
defaultAttribute: 'defer'
}),
/*
* Plugin: HtmlElementsPlugin
* Description: Generate html tags based on javascript maps.
*
* If a publicPath is set in the webpack output configuration, it will be automatically added to
* href attributes, you can disable that by adding a "=href": false property.
* You can also enable it to other attribute by settings "=attName": true.
*
* The configuration supplied is map between a location (key) and an element definition object (value)
* The location (key) is then exported to the template under then htmlElements property in webpack configuration.
*
* Example:
* Adding this plugin configuration
* new HtmlElementsPlugin({
* headTags: { ... }
* })
*
* Means we can use it in the template like this:
* <%= webpackConfig.htmlElements.headTags %>
*
* Dependencies: HtmlWebpackPlugin
*/
new HtmlElementsPlugin({
headTags: require('./head-config.common')
}),
/**
* Plugin LoaderOptionsPlugin (experimental)
*
* See: https://gist.github.com/sokra/27b24881210b56bbaff7
*/
new LoaderOptionsPlugin({}),
// Fix Angular 2
new NormalModuleReplacementPlugin(
/facade(\\|\/)async/,
helpers.root('node_modules/@angular/core/src/facade/async.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)collection/,
helpers.root('node_modules/@angular/core/src/facade/collection.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)errors/,
helpers.root('node_modules/@angular/core/src/facade/errors.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)lang/,
helpers.root('node_modules/@angular/core/src/facade/lang.js')
),
new NormalModuleReplacementPlugin(
/facade(\\|\/)math/,
helpers.root('node_modules/@angular/core/src/facade/math.js')
),
new ngcWebpack.NgcWebpackPlugin({
disabled: !AOT,
tsConfig: helpers.root('tsconfig.webpack.json'),
resourceOverride: helpers.root('config/resource-override.js')
})
],
/*
* Include polyfills or mocks for various node stuff
* Description: Node configuration
*
* See: https://webpack.github.io/docs/configuration.html#node
*/
node: {
global: true,
crypto: 'empty',
process: true,
module: false,
clearImmediate: false,
setImmediate: false
}
};
}
TL; DR - 在上面的配置中观察的点是recordsPath，entryPoints，CommonsChunkPlugin。 Rest配置不变，直接取自上面提到的入门包。
当分离运行时，良好大小的angular2项目运行正常，当我使用本地主js和远程供应商和pollyfills部署我的项目时，请参阅下面我在index.html中引用它的方式
<script type="text/javascript" src="/cdn/dist/a2-bundle/polyfills.bundle.js" defer></script>
<script type="text/javascript" src="/cdn/dist/a2-bundle/vendor.bundle.js" defer></script>
<script type="text/javascript" src="~/ng2/dist/main.bundle.js" defer></script>
我在浏览器中收到错误。
Uncaught TypeError: Cannot set property '_console' of undefined
at t (vendor.bundle.js:19)
at Object.984 (main.bundle.js:1)
at n (polyfills.bundle.js:1)
at Object.990 (main.bundle.js:1)
at n (polyfills.bundle.js:1)
at Object.988 (main.bundle.js:1)
at n (polyfills.bundle.js:1)
at Object.1013 (main.bundle.js:1)
at n (polyfills.bundle.js:1)
at window.webpackJsonp (polyfills.bundle.js:1)
at main.bundle.js:1
我已经通过互联网搜索了这项工作但无法这样做。 由于webpack在构建bundle时为每个模块提供了唯一的id，因此我在配置中使用了Record这里的记录。
你有什么建议？ 我最欢迎任何其他替代方案/解决方案
谢谢........
答案 0 :(得分：0)
对于这种类型的用例，我肯定会走错方向 DLLPlugin（在CDN）和DLLReferencePlugin（在客户端）解决了我的问题。