我正在使用require.ensure
来创建块,这些块是根据Angular SPA中的路径延迟加载的。我没有为Angular使用任何特殊的延迟加载插件,只是ui-router的决心。
Chunk#2需要#1的内容。例如:
require.ensure([], function(require) {
require('shop/shop'); // Creates chunk 1
}, 'Shop');
require.ensure([], function(require) {
require('signup/signup'); // Creates chunk 2
}, 'Signup');
// signup/signup.js
define([
'_auth.scss',
'shop/shop' // Chunk 2 depends on chunk 1
], function() { });
webpack的输出看起来大致如下:
资产-------- Chunk
app.js ------- 0
1.Shop.js ---------- 1
2.Signup.js ---------- 1,2
如果我从{1,2}导航 - > {1},我没有提出任何要求,因为{1,2}满足{1,2}。但如果我去{1} - > {1,2},我收到{1,2}的所有内容,而不仅仅是一个包含{2}的块。
有没有办法让我只能从Webpack的块中获得“unloaded chunk diff”?
我尝试过以这种方式使用CommonsChunkPlugin: https://github.com/webpack/webpack/tree/master/examples/extra-async-chunk
new webpack.optimize.CommonsChunkPlugin({
name: 'main',
async: true
})
但是如果我使用'main',那么不知怎的,我最终会得到一个巨大的最终捆绑/块,它甚至比包含大部分供应商代码的入口点都要大。
如果Webpack目前不支持,那么可以合理地假设可以编写一个插件来为“卸载的块”的可能有效排列生成文件,然后在运行时加载正确的插件吗?
感谢您的任何见解!!
我的webpack.config.js:
var webpack = require('webpack');
var path = require('path');
process.env.UV_THREADPOOL_SIZE = 100;
var alias = {
json3: 'json3/lib/json3',
es5shim: 'es5-shim/es5-shim',
angular: 'angular/angular',
lodash: 'lodash/lodash',
angularRoute: 'angular-ui-router/release/angular-ui-router',
angularAnimate: 'angular-animate/angular-animate',
moment: 'moment/moment',
'angular-moment': 'angular-moment/angular-moment',
'angular-cookies': 'angular-cookies/angular-cookies',
'angular-encode-uri': 'angular-encode-uri/dist/angular-encode-uri',
'angulartics-gtm': __dirname + '/app/vendor/angulartics/src/angulartics-gtm',
angulartics: __dirname + '/app/vendor/angulartics/src/angulartics'
};
module.exports = {
context: __dirname + '/app/scripts',
entry: {
app: 'bootstrap.js'
},
output: {
path: __dirname + '/dist/scripts',
filename: '[name].js',
publicPath: '/scripts/'
},
plugins: [
new webpack.ProvidePlugin({
_: 'lodash'
}),
new webpack.optimize.DedupePlugin(),
new webpack.ContextReplacementPlugin(
/moment[\/\\]locale$/,
/be|de\-at|de|en\-gb|es|fr|it|nl|pl|pt|pt\-br|ru|sv/
)
],
module: {
loaders: [
{ test: /[\/]angular\.js$/, loader: 'exports?angular' },
{ test: /\.html$/, loader: 'html', include: __dirname + '/app/scripts' },
{ test: /\.scss$/, loader: 'style!css!sass', include: __dirname + '/app/styles/sass' },
{ test: /\.css$/, loader: 'style!css' },
{ test: /angular\-moment/, loader: 'imports?define=>false&angular&moment'},
{
test: /images\/.*\.svg$/i,
loaders: [
'file?name=[path][name].[ext]',
'image-webpack?bypassOnDebug'
]
}
]
},
resolve: {
extensions: ['', '.js', '.html', '.scss', '.css', '.svg'],
root: [ __dirname + '/app' ],
modulesDirectories: [
'vendor',
'scripts',
'styles/sass',
'icons'
],
alias: alias
},
noParse: Object.keys(alias),
devtool: 'cheap-source-map'
};
答案 0 :(得分:1)
目前无法自动使用webpack执行此操作,但这是一种手动方式的想法:
完全未经测试且相当苛刻,但它可以解决您的特殊情况的问题。
// chunk 1 loading (as before)
require.ensure([], function(require) {
require('shop/shop'); // Creates chunk 1
}, 'Shop');
// chunk 2 loading:
// check if shop already loaded
if(require.resolveWeak("shop/shop") in __webpack_modules__) {
// the first require.ensure maps to chunk 1 but doesn't load anything
// because it's already loaded
require.ensure(['shop/shop'], function(require) {
// the second require.ensure creates a child chunk and the optimization
// removes all modules which are already in chunk 1
require.ensure([], function(require) {
require('signup/signup'); // Creates chunk 3 = 2 minus 1
}, 'Signup2'); // important: other name (or no name)
}, 'Shop');
} else {
// full chunk load
require.ensure([], function(require) {
require('signup/signup'); // Creates chunk 2
}, 'Signup');
}