Nuxt/lib/builder/webpack/style-loader.js

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import ExtractTextPlugin from 'extract-text-webpack-plugin'
import { join } from 'path'
export default function styleLoader (ext, loaders = [], isVueLoader = false) {
// Normalize loaders
loaders = (Array.isArray(loaders) ? loaders : [loaders]).map(loader => {
if (typeof loader === 'string') {
return {
loader,
options: {
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sourceMap: true // Source map is REQUIRED for urlLoader
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}
}
}
return loader
})
// https://github.com/postcss/postcss-loader
let postcssLoader
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if (!isVueLoader && this.options.build.postcss) {
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postcssLoader = {
loader: 'postcss-loader',
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options: this.options.build.postcss
}
if (postcssLoader.options === true) {
postcssLoader.options = {
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sourceMap: this.options.build.cssSourceMap
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}
}
}
// https://github.com/webpack-contrib/css-loader
const cssLoader = {
loader: 'css-loader',
options: {
minimize: true,
importLoaders: 1,
sourceMap: this.options.build.cssSourceMap,
root: '~', // https://github.com/webpack/loader-utils#root-relative-urls
alias: {
'/static': join(this.options.srcDir, 'static'),
'/assets': join(this.options.srcDir, 'assets')
}
}
}
// https://github.com/vuejs/vue-style-loader
const vueStyleLoader = {
loader: 'vue-style-loader',
options: {
sourceMap: this.options.build.cssSourceMap
}
}
// https://github.com/bholloway/resolve-url-loader
const urlLoader = {
loader: 'resolve-url-loader'
}
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if (this.options.build.extractCSS && !isVueLoader && !this.options.dev) {
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return ExtractTextPlugin.extract({
fallback: vueStyleLoader,
use: [
cssLoader,
postcssLoader,
urlLoader,
...loaders
].filter(l => l)
})
}
return [
vueStyleLoader,
cssLoader,
postcssLoader,
urlLoader,
...loaders
].filter(l => l)
}