80 lines
2.2 KiB
JavaScript
80 lines
2.2 KiB
JavaScript
const postcss = require('postcss')
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const loaderUtils = require('loader-utils')
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const loadPostcssConfig = require('./load-postcss-config')
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const trim = require('./plugins/trim')
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const scopeId = require('./plugins/scope-id')
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module.exports = function (css, map) {
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this.cacheable()
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const cb = this.async()
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const query = loaderUtils.getOptions(this) || {}
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let vueOptions = this.options.__vueOptions__
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if (!vueOptions) {
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if (query.hasInlineConfig) {
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this.emitError(
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`\n [vue-loader] It seems you are using HappyPack with inline postcss ` +
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`options for vue-loader. This is not supported because loaders running ` +
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`in different threads cannot share non-serializable options. ` +
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`It is recommended to use a postcss config file instead.\n` +
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`\n See http://vue-loader.vuejs.org/en/features/postcss.html#using-a-config-file for more details.\n`
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)
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}
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vueOptions = Object.assign({}, this.options.vue, this.vue)
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}
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loadPostcssConfig(this, vueOptions.postcss)
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.then(config => {
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const plugins = config.plugins.concat(trim)
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const options = Object.assign(
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{
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to: this.resourcePath,
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from: this.resourcePath,
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map: false
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},
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config.options
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)
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// add plugin for vue-loader scoped css rewrite
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if (query.scoped) {
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plugins.push(scopeId({ id: query.id }))
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}
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// source map
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if (
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this.sourceMap &&
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!this.minimize &&
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vueOptions.cssSourceMap !== false &&
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process.env.NODE_ENV !== 'production' &&
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!options.map
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) {
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options.map = {
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inline: false,
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annotation: false,
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prev: map
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}
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}
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return postcss(plugins)
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.process(css, options)
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.then(result => {
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if (result.messages) {
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result.messages.forEach(({ type, file }) => {
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if (type === 'dependency') {
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this.addDependency(file)
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}
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})
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}
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const map = result.map && result.map.toJSON()
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cb(null, result.css, map)
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return null // silence bluebird warning
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})
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})
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.catch(e => {
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console.error(e)
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cb(e)
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})
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}
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