pinafore/bin/build-sass.js

79 lines
2.7 KiB
JavaScript
Executable File

#!/usr/bin/env node
const sass = require('node-sass')
const chokidar = require('chokidar')
const path = require('path')
const debounce = require('lodash/debounce')
const fs = require('fs')
const pify = require('pify')
const writeFile = pify(fs.writeFile.bind(fs))
const readdir = pify(fs.readdir.bind(fs))
const readFile = pify(fs.readFile.bind(fs))
const render = pify(sass.render.bind(sass))
const now = require('performance-now')
const globalScss = path.join(__dirname, '../scss/global.scss')
const defaultThemeScss = path.join(__dirname, '../scss/themes/_default.scss')
const offlineThemeScss = path.join(__dirname, '../scss/themes/_offline.scss')
const customScrollbarScss = path.join(__dirname, '../scss/custom-scrollbars.scss')
const htmlTemplateFile = path.join(__dirname, '../src/template.html')
const scssDir = path.join(__dirname, '../scss')
const themesScssDir = path.join(__dirname, '../scss/themes')
const assetsDir = path.join(__dirname, '../static')
function doWatch () {
let start = now()
chokidar.watch(scssDir).on('change', debounce(() => {
console.log('Recompiling SCSS...')
Promise.all([
compileGlobalSass(),
compileThemesSass()
]).then(() => {
console.log('Recompiled SCSS in ' + (now() - start) + 'ms')
})
}, 500))
chokidar.watch()
}
async function renderCss (file) {
return (await render({ file, outputStyle: 'compressed' })).css
}
async function compileGlobalSass () {
let mainStyle = (await Promise.all([defaultThemeScss, globalScss].map(renderCss))).join('')
let offlineStyle = (await renderCss(offlineThemeScss))
let scrollbarStyle = (await renderCss(customScrollbarScss))
let html = await readFile(htmlTemplateFile, 'utf8')
html = html.replace(/<!-- begin inline CSS -->[\s\S]+<!-- end inline CSS -->/,
`<!-- begin inline CSS -->\n` +
`<style>\n${mainStyle}</style>\n` +
`<style media="only x" id="theOfflineStyle">\n${offlineStyle}</style>\n` +
`<style media="all" id="theScrollbarStyle">\n${scrollbarStyle}</style>\n` +
`<!-- end inline CSS -->`
)
await writeFile(htmlTemplateFile, html, 'utf8')
}
async function compileThemesSass () {
let files = (await readdir(themesScssDir)).filter(file => !path.basename(file).startsWith('_'))
await Promise.all(files.map(async file => {
let res = await render({ file: path.join(themesScssDir, file), outputStyle: 'compressed' })
let outputFilename = 'theme-' + path.basename(file).replace(/\.scss$/, '.css')
await writeFile(path.join(assetsDir, outputFilename), res.css, 'utf8')
}))
}
async function main () {
await Promise.all([compileGlobalSass(), compileThemesSass()])
if (process.argv.includes('--watch')) {
doWatch()
}
}
Promise.resolve().then(main).catch(err => {
console.error(err)
process.exit(1)
})