【发布时间】：2017-12-11 22:07:25
【问题描述】：
我正在尝试使用引导程序 scss 文件而不是 css 文件，因此我可以覆盖引导程序变量。我可以使用 css 文件加载样式，但不能使用 scss 文件。我在从 Visual Studio 2017 Angular 模板创建的 .NET Core Angular 项目中这样做。
我已经尝试过这里的答案，但没有运气。
Spa template .net core 2.0 angular 4 webpack 2 use sass not boostrap 4 css
这是我对它应该如何工作的理解：
webpack.config.vendor.js 文件生成 vendor.js 和 vendor.css。我知道 vendor.js 与 main-client.js 是分开的，因此它只需要在供应商依赖项发生变化时构建，改进构建过程并且只在生产发布需要时进行缓存清除。
在我想编译 bootstrap 的 scss 文件而不是使用它们的 css 文件的情况下，我希望 webpack.config.vendor.js 中的 bootstrap.css 引用应该被删除，而是添加一个 scss 规则到 webpack.config.js。
Webpack.config.js 生成一个 main-client.js 文件，其中包含 Angular 组件所需的所有 js 代码。通过在配置中引入 scss 规则，它还应该将引导 scss 文件编译为通过 javascript 注入到 html 标头中的样式。
我的应用程序中的 styles.scss 文件由 webpack.config.js 处理，并且应该有 @import "~bootstrap/scss/bootstrap" 以便构建引导 scss 文件。最终，我还将导入我自己的 _custom.scss 文件，并在其中覆盖变量。
我的理解正确吗？
另外，除了我的 style.scss 文件（已经导入 bootstrap.scss）之外，我不知道是什么让 webpack.config.js 无法处理 node-modules 文件夹下的 bootstrap scss 文件。这是我需要在 webpack.js 中定义的东西吗？
这是我的 webpack.config.js。 scss 规则直接来自引导文档。
const path = require('path');
const webpack = require('webpack');
const merge = require('webpack-merge');
const AotPlugin = require('@ngtools/webpack').AotPlugin;
const CheckerPlugin = require('awesome-typescript-loader').CheckerPlugin;
module.exports = (env) => {
// Configuration in common to both client-side and server-side bundles
const isDevBuild = !(env && env.prod);
const sharedConfig = {
stats: { modules: false },
context: __dirname,
resolve: { extensions: ['.js', '.ts'] },
output: {
filename: '[name].js',
publicPath: 'dist/' // Webpack dev middleware, if enabled, handles requests for this URL prefix
},
module: {
rules: [
{ test: /\.ts$/, include: /ClientApp/, use: isDevBuild ? ['awesome-typescript-loader?silent=true', 'angular2-template-loader'] : '@ngtools/webpack' },
{ test: /\.html$/, use: 'html-loader?minimize=false' },
{ test: /\.css$/, use: ['to-string-loader', isDevBuild ? 'css-loader' : 'css-loader?minimize'] },
{ test: /\.(png|jpg|jpeg|gif|svg)$/, use: 'url-loader?limit=25000' },
{
test: /\.(scss)$/,
use: [{
loader: 'style-loader', // inject CSS to page
}, {
loader: 'css-loader', // translates CSS into CommonJS modules
}, {
loader: 'postcss-loader', // Run post css actions
options: {
plugins: function () { // post css plugins, can be exported to postcss.config.js
return [
require('precss'),
require('autoprefixer')
];
}
}
}, {
loader: 'sass-loader' // compiles SASS to CSS
}]
},
]
},
plugins: [new CheckerPlugin()]
};
// Configuration for client-side bundle suitable for running in browsers
const clientBundleOutputDir = './wwwroot/dist';
const clientBundleConfig = merge(sharedConfig, {
entry: { 'main-client': './ClientApp/boot.browser.ts' },
output: { path: path.join(__dirname, clientBundleOutputDir) },
plugins: [
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require('./wwwroot/dist/vendor-manifest.json')
}),
new webpack.ProvidePlugin({
$: 'jquery',
jQuery: 'jquery',
'window.jQuery': 'jquery',
Popper: ['popper.js', 'default']
// In case you imported plugins individually, you must also require them here:
//Util: "exports-loader?Util!bootstrap/js/dist/util",
//Dropdown: "exports-loader?Dropdown!bootstrap/js/dist/dropdown"
})
].concat(isDevBuild ? [
// Plugins that apply in development builds only
new webpack.SourceMapDevToolPlugin({
filename: '[file].map', // Remove this line if you prefer inline source maps
moduleFilenameTemplate: path.relative(clientBundleOutputDir, '[resourcePath]') // Point sourcemap entries to the original file locations on disk
})
] : [
// Plugins that apply in production builds only
new webpack.optimize.UglifyJsPlugin(),
new AotPlugin({
tsConfigPath: './tsconfig.json',
entryModule: path.join(__dirname, 'ClientApp/app/app-browser.module#AppModule'),
exclude: ['./**/*.server.ts']
})
])
});
// Configuration for server-side (prerendering) bundle suitable for running in Node
const serverBundleConfig = merge(sharedConfig, {
resolve: { mainFields: ['main'] },
entry: { 'main-server': './ClientApp/boot.server.ts' },
plugins: [
new webpack.DllReferencePlugin({
context: __dirname,
manifest: require('./ClientApp/dist/vendor-manifest.json'),
sourceType: 'commonjs2',
name: './vendor'
})
].concat(isDevBuild ? [] : [
// Plugins that apply in production builds only
new AotPlugin({
tsConfigPath: './tsconfig.json',
entryModule: path.join(__dirname, 'ClientApp/app/app-server.module#AppModule'),
exclude: ['./**/*.browser.ts']
})
]),
output: {
libraryTarget: 'commonjs',
path: path.join(__dirname, './ClientApp/dist')
},
target: 'node',
devtool: 'inline-source-map'
});
return [clientBundleConfig, serverBundleConfig];
};
这是我的 webpack.config.vendor.js。我已经注释掉了 bootstrap/dist/css/bootstrap.css
//Run from Command Line: webpack --config webpack.config.vendor.js
const path = require('path');
const webpack = require('webpack');
const ExtractTextPlugin = require('extract-text-webpack-plugin');
const merge = require('webpack-merge');
const treeShakableModules = [
'@angular/animations',
'@angular/common',
'@angular/compiler',
'@angular/core',
'@angular/forms',
'@angular/http',
'@angular/platform-browser',
'@angular/platform-browser-dynamic',
'@angular/router',
'zone.js',
];
const nonTreeShakableModules = [
'bootstrap',
//'bootstrap/dist/css/bootstrap.css',
'ag-grid/dist/styles/ag-grid.css',
'ag-grid/dist/styles/ag-theme-blue.css',
'es6-promise',
'es6-shim',
'event-source-polyfill',
'jquery',
];
const allModules = treeShakableModules.concat(nonTreeShakableModules);
module.exports = (env) => {
const extractCSS = new ExtractTextPlugin('vendor.css');
const isDevBuild = !(env && env.prod);
const sharedConfig = {
stats: { modules: false },
resolve: { extensions: ['.js'] },
module: {
rules: [
{ test: /\.(png|woff|woff2|eot|ttf|svg)(\?|$)/, use: 'url-loader?limit=100000' }
]
},
output: {
publicPath: 'dist/',
filename: '[name].js',
library: '[name]_[hash]'
},
plugins: [
new webpack.ProvidePlugin({ $: 'jquery', jQuery: 'jquery' }), // Maps these identifiers to the jQuery package (because Bootstrap expects it to be a global variable)
new webpack.ContextReplacementPlugin(/\@angular\b.*\b(bundles|linker)/, path.join(__dirname, './ClientApp')), // Workaround for https://github.com/angular/angular/issues/11580
new webpack.ContextReplacementPlugin(/angular(\\|\/)core(\\|\/)@angular/, path.join(__dirname, './ClientApp')), // Workaround for https://github.com/angular/angular/issues/14898
new webpack.IgnorePlugin(/^vertx$/) // Workaround for https://github.com/stefanpenner/es6-promise/issues/100
]
};
const clientBundleConfig = merge(sharedConfig, {
entry: {
// To keep development builds fast, include all vendor dependencies in the vendor bundle.
// But for production builds, leave the tree-shakable ones out so the AOT compiler can produce a smaller bundle.
vendor: isDevBuild ? allModules : nonTreeShakableModules
},
output: { path: path.join(__dirname, 'wwwroot', 'dist') },
module: {
rules: [
{ test: /\.css(\?|$)/, use: extractCSS.extract({ use: isDevBuild ? 'css-loader' : 'css-loader?minimize' }) }
]
},
plugins: [
extractCSS,
new webpack.DllPlugin({
path: path.join(__dirname, 'wwwroot', 'dist', '[name]-manifest.json'),
name: '[name]_[hash]'
})
].concat(isDevBuild ? [] : [
new webpack.optimize.UglifyJsPlugin()
])
});
const serverBundleConfig = merge(sharedConfig, {
target: 'node',
resolve: { mainFields: ['main'] },
entry: { vendor: allModules.concat(['aspnet-prerendering']) },
output: {
path: path.join(__dirname, 'ClientApp', 'dist'),
libraryTarget: 'commonjs2',
},
module: {
rules: [{ test: /\.css(\?|$)/, use: ['to-string-loader', isDevBuild ? 'css-loader' : 'css-loader?minimize'] }]
},
plugins: [
new webpack.DllPlugin({
path: path.join(__dirname, 'ClientApp', 'dist', '[name]-manifest.json'),
name: '[name]_[hash]'
})
]
});
return [clientBundleConfig, serverBundleConfig];
}
【问题讨论】：
标签： twitter-bootstrap angular webpack sass .net-core