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import { join, dirname, fromFileUrl } from 'https://deno.land/std@0.139.0/path/mod.ts'
import { gzip } from "https://deno.land/x/compress@v0.4.5/mod.ts"
import { compress as brotli } from 'https://deno.land/x/brotli@v0.1.4/mod.ts'
import postcss from "https://esm.sh/postcss@8.4.13"
// Plugins
import nesting from 'https://esm.sh/postcss-nesting?deps=postcss@8.4.13'
import customSelectors from 'https://esm.sh/postcss-custom-selectors?deps=postcss@8.4.13'
import atImport from 'https://esm.sh/postcss-import?deps=postcss@8.4.13'
import importGlob from 'https://esm.sh/postcss-import-ext-glob?deps=postcss@8.4.13'
import mixins from 'https://esm.sh/postcss-mixins?deps=postcss@8.4.13'
import cssnano from 'https://esm.sh/cssnano?deps=postcss@8.4.13'
// Paths
const __dirname = dirname(fromFileUrl(import.meta.url))
const entrypoint = join(__dirname, '../src/main.css')
const dist = join(__dirname, '../dist/')
const prodTarget = join(dist, '/missing.min.css')
const devTarget = join(dist, '/missing.css')
const dec = new TextDecoder
const enc = new TextEncoder
const build = async () => {
const postcssMain = postcss([
nesting(),
customSelectors(),
importGlob(),
atImport(),
mixins(),
])
// const postcssMinifier = postcss([cssnano({ preset: 'default' })])
const css = dec.decode(await Deno.readFile(entrypoint))
await Deno.mkdir(dist, { recursive: true })
const result =
await postcssMain.process(css, { from: entrypoint, to: devTarget })
const outputCss = enc.encode(result.css)
await w(outputCss, devTarget)
// const minifyResult =
// await postcssMinifier.process(result, { from: entrypoint, to: prodTarget })
// const minifiedCSS = enc.encode(minifyResult.css)
// await w(minifiedCSS, prodTarget)
// await Promise.all([
// w(brotli(minifiedCSS), prodTarget + ".br"),
// w(gzip (minifiedCSS), prodTarget + ".gz"),
// ])
}
const w = async (data: Uint8Array, path: string | URL) => {
await Deno.writeFile(path, data)
console.log("Wrote " + path)
}
build()
export default build
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