78 lines
1.7 KiB
JavaScript
78 lines
1.7 KiB
JavaScript
const postcss = require('postcss')
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const postcssrc = require('postcss-load-config')
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const ctx = { parser: true, map: 'inline' }
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const { plugins } = postcssrc.sync(ctx)
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const logger = require('../logger')
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const getVueJestConfig = require('../get-vue-jest-config')
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const ensureRequire = require('../ensure-require')
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let prevCheckIsAsync = null
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function hasAsyncPlugin () {
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if (prevCheckIsAsync !== null) {
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return prevCheckIsAsync
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}
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const result = postcss(plugins)
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.process('', {
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from: undefined
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})
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if (result.processing) {
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prevCheckIsAsync = true
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return prevCheckIsAsync
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}
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for (const plugin of result.processor.plugins) {
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const promise = result.run(plugin)
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if (typeof promise === 'object' && typeof promise.then === 'function') {
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prevCheckIsAsync = true
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break
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}
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}
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if (prevCheckIsAsync === null) {
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prevCheckIsAsync = false
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}
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return prevCheckIsAsync
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}
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function catchError (error, filePath, jestConfig) {
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if (!getVueJestConfig(jestConfig).hideStyleWarn) {
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logger.warn(`There was an error rendering the POSTCSS in ${filePath}. `)
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logger.warn(`Error while compiling styles: ${error}`)
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}
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}
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module.exports = (content, filePath, jestConfig) => {
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ensureRequire('postcss', ['postcss'])
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let css = null
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const res = postcss(plugins)
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.process(content, {
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from: undefined
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})
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if (hasAsyncPlugin()) {
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res
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.then(result => {
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css = result.css || ''
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})
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.catch((e) => {
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css = ''
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catchError(e, filePath, jestConfig)
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})
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while (css === null) { //eslint-disable-line
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require('deasync').sleep(100)
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}
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return css
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}
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try {
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return res.css
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} catch (e) {
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catchError(e, filePath, jestConfig)
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return ''
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}
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}
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