67 lines
1.8 KiB
JavaScript
67 lines
1.8 KiB
JavaScript
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const load = require('postcss-load-config')
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let loaded
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function isObject (val) {
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return val && typeof val === 'object'
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}
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module.exports = function loadPostcssConfig (loaderContext, inlineConfig = {}) {
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if (inlineConfig.useConfigFile === false) {
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return Promise.resolve({
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plugins: inlineConfig.plugins || [],
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options: inlineConfig.options || {}
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})
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}
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if (process.env.VUE_LOADER_TEST || !loaded) {
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const config = inlineConfig.config || {}
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const ctx = { webpack: loaderContext }
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if (config.ctx) {
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ctx.options = config.ctx
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}
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loaded = load(ctx, config.path, { argv: false }).catch(err => {
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// postcss-load-config throws error when no config file is found,
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// but for us it's optional. only emit other errors
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if (err.message.indexOf('No PostCSS Config found') >= 0) {
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return
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}
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const friendlyErr = new Error(`Error loading PostCSS config: ${err.message}`)
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Error.captureStackTrace(friendlyErr, err)
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loaderContext.emitError(friendlyErr)
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})
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}
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return loaded.then(config => {
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let plugins = []
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let options = {}
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// inline postcss options for vue-loader
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if (typeof inlineConfig === 'function') {
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inlineConfig = inlineConfig.call(this, this)
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}
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if (Array.isArray(inlineConfig)) {
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plugins = inlineConfig
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} else if (isObject(inlineConfig)) {
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plugins =
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typeof inlineConfig.plugins === 'function'
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? inlineConfig.plugins.call(this, this)
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: inlineConfig.plugins || []
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options = inlineConfig.options || {}
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}
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// merge postcss config file
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if (config && config.plugins) {
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plugins = plugins.concat(config.plugins)
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}
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if (config && config.options) {
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options = Object.assign({}, config.options, options)
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}
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return {
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plugins,
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options
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}
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})
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}
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