xys-monitor/build/utils.js

A project named xys-monitor

var path = require('path')
var config = require('./config')
var ExtractTextPlugin = require('extract-text-webpack-plugin')
var postcssConfig = require('../postcss.config.js')

exports.assetsPath = function (_path) {
    var assetsRoot = config.build.assetsReRoot
    return path.join(assetsRoot, _path)
}

exports.cssLoaders = function (options) {
    options = options || {}

    var cssLoader = {
        loader: 'css-loader',
        options: {
            minimize: options.minimize,
            sourceMap: options.sourceMap
        }
    }
    var postcssLoader = {
        loader: 'postcss-loader',
        options: {
            sourceMap: options.sourceMap,
            plugins: () => postcssConfig.plugins
        }
    }

    // generate loader string to be used with extract text plugin
    function generateLoaders(loader, loaderOptions) {
        var loaders = [cssLoader, postcssLoader]
        if ( loader ) {
            loaders.push({
                loader: loader + '-loader',
                options: Object.assign({}, loaderOptions, {
                    sourceMap: options.sourceMap
                })
            })
        }

        // Extract CSS when that option is specified
        // (which is the case during production build)
        if (options.extract) {
            return ExtractTextPlugin.extract({
                use: loaders,
                fallback: 'vue-style-loader',
            })
        } else {
            return ['vue-style-loader'].concat(loaders)
        }
    }

    var stylusOptions = {
        'resolve url': true
    }
    // 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', stylusOptions),
        styl: generateLoaders('stylus', stylusOptions)
    }
}

// Generate loaders for standalone style files (outside of .vue)
exports.styleLoaders = function (options) {
    var output = []
    var loaders = exports.cssLoaders(options)
    for ( var extension in loaders ) {
        var loader = loaders[extension]
        output.push({
            test: new RegExp('\\.' + extension + '$'),
            use: loader
        })
    }
    return output
}