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