hexo-yam/lib/css.js

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'use strict'
const CleanCSS = require('clean-css')
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const { isMatch, match, logFn } = require('./tools')
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/**
* @param {string} str
* @param {{ path: string }} data
*/
async function minifyCss(str, data) {
const hexo = this
const options = hexo.config.minify.css
if (!str) return str
const path = data.path
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const { exclude, globOptions, verbose } = options
if (isMatch(path, exclude, globOptions)) return str
try {
const styles = await new CleanCSS(options).minify(str).styles
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if (verbose) logFn.call(this, str, styles, path, 'css')
return styles
} catch (err) {
throw new Error(`Path: ${path}\n${err}`)
}
}
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function minifyCssWithMap() {
const hexo = this
const options = hexo.config.minify.css
const { parse } = require('path')
const route = hexo.route
const routeList = route.list()
/** @type {{ exclude: string[] }} */
const { exclude, globOptions, verbose } = options
const include = ['*.css', ...exclude.map(x => `!${x}`)]
const cleanCSS = new CleanCSS(options)
return Promise.all((match(routeList, include, globOptions)).map(path => {
return new Promise((/** @type {(value: void) => void} */ resolve, reject) => {
const assetPath = route.get(path)
let assetTxt = ''
assetPath.on('data', chunk => (assetTxt += chunk))
assetPath.on('end', async () => {
if (assetTxt.length) {
try {
const { base, ext, name } = parse(path)
const { styles, sourceMap } = await cleanCSS.minify(assetTxt)
if (verbose) logFn.call(this, assetTxt, result, path, 'css')
route.set(path, `${styles}\n/*# sourceMappingURL=${base}.map */`)
const map = sourceMap.toJSON()
map.sources = [`${name}.source${ext}`]
if (options.mapIncludeSources === true) {
map.sourcesContent = [assetTxt]
}
route.set(`${path}.map`, JSON.stringify(map))
} catch (err) {
reject(new Error(`Path: ${path}\n${err}`))
}
}
resolve()
})
})
}))
}
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module.exports = {
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minifyCss,
minifyCssWithMap
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}