Sha256: 3409db3191aa0931295c5ef2b65b96650c62b1f8c9a030eae26800594f6f5e42
Contents?: true
Size: 1.68 KB
Versions: 30
Compression:
Stored size: 1.68 KB
Contents
import { expandGlob } from 'std/fs/mod.ts'
import postcss, { CssSyntaxError } from 'postcss'
export default async (root, path) => {
let tmpFile
let contents
const mixinFiles = []
for await (const file of expandGlob(`lib/**/*.mixin.css`, { root })) {
mixinFiles.push(file.path)
}
// Only process mixins with PostCSS if there are any 'lib/**/*.mixin.css' files.
if (mixinFiles.length > 0) {
tmpFile = await Deno.makeTempFile()
contents = await Deno.readTextFile(path)
const result = await postcss([mixinsPlugin({ mixinFiles })]).process(contents, { from: path })
contents = result.css
}
return [tmpFile, contents]
}
const mixinsPlugin = (opts = {}) => {
return {
postcssPlugin: 'mixins',
prepare() {
const mixins = {}
return {
async Once(_, helpers) {
for (const path of opts.mixinFiles) {
const content = await Deno.readTextFile(path)
const root = helpers.parse(content, { from: path })
root.walkAtRules('define-mixin', atrule => {
mixins[atrule.params] = atrule
})
}
},
AtRule: {
mixin: (rule, helpers) => {
const mixin = mixins[rule.params]
if (!mixin) {
throw rule.error(`Undefined mixin '${rule.params}'`)
}
const proxy = new helpers.Root()
for (let i = 0; i < mixin.nodes.length; i++) {
const node = mixin.nodes[i].clone()
delete node.raws.before
proxy.append(node)
}
rule.parent.insertBefore(rule, proxy)
if (rule.parent) rule.remove()
}
}
}
}
}
}
Version data entries
30 entries across 30 versions & 1 rubygems