102 lines
2.8 KiB
JavaScript
102 lines
2.8 KiB
JavaScript
'use strict'
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const MiniCssPlugin = require('mini-css-extract-plugin');
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const dotenv = require('dotenv')
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const { join } = require("path")
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const argv = require('minimist')(process.argv.slice(2));
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const rootResolve = (...pathSegments) => join(__dirname, '..', ...pathSegments)
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function getEnv() {
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return argv['m']
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}
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function getEnvPath() {
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if (String(typeof getEnv()) === 'boolean' || String(typeof getEnv()) === 'undefined') {
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return rootResolve('env/.env')
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}
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return rootResolve(`env/${getEnv()}.env`)
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}
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function getConfig() {
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return dotenv.config({ path: getEnvPath() }).parsed
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}
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// 获取环境
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exports.getEnv = getEnv()
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// 获取配置
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exports.getConfig = getConfig()
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exports.cssLoaders = function (options) {
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options = options || {}
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const esbuildCss = {
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loader: 'esbuild-loader',
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options: {
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loader: 'css',
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minify: options.minifyCss
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}
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}
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const cssLoader = {
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loader: 'css-loader',
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options: {
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sourceMap: options.sourceMap,
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esModule: false
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}
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}
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const postcssLoader = {
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loader: 'postcss-loader',
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options: {
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sourceMap: options.sourceMap
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}
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}
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// 这里就是生成loader和其对应的配置
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function generateLoaders(loader, loaderOptions) {
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const loaders = [cssLoader, postcssLoader, esbuildCss]
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if (loader) {
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loaders.push({
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loader: loader + '-loader',
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options: Object.assign({}, loaderOptions, {
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sourceMap: options.sourceMap
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})
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})
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}
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// 当配置信息中开启此项时，启用css分离压缩
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// 这一项在生产环境时，是默认开启的
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if (options.extract) {
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return [MiniCssPlugin.loader].concat(loaders)
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} else {
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// 如果不开启则让vue-style-loader来处理
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return ['vue-style-loader'].concat(loaders)
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}
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}
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// https://vue-loader.vuejs.org/en/configurations/extract-css.html
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return {
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css: generateLoaders(),
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postcss: generateLoaders(),
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less: generateLoaders('less'),
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sass: generateLoaders('sass', { indentedSyntax: true }),
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scss: generateLoaders('sass'),
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stylus: generateLoaders('stylus'),
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styl: generateLoaders('stylus')
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}
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}
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// 根据上面的函数遍历出来的各个css预处理器的loader进行最后的拼装
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exports.styleLoaders = function (options) {
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const output = []
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const loaders = exports.cssLoaders(options)
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for (const extension in loaders) {
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const loader = loaders[extension]
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output.push({
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test: new RegExp('\\.' + extension + '$'),
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use: loader
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})
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}
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return output
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}
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