unpkg/server/middleware/utils/getIndexHTML.js

43 lines
1.1 KiB
JavaScript

const fs = require('fs')
const path = require('path')
const React = require('react')
const ReactDOMServer = require('react-dom/server')
const getFileStats = require('./getFileStats')
const IndexPage = require('../components/IndexPage')
const e = React.createElement
function getEntries(dir) {
return new Promise(function (resolve, reject) {
fs.readdir(dir, function (error, files) {
if (error) {
reject(error)
} else {
resolve(
Promise.all(
files.map(file => getFileStats(path.join(dir, file)))
).then(function (statsArray) {
return statsArray.map(function (stats, index) {
return { file: files[index], stats }
})
})
)
}
})
})
}
const DOCTYPE = '<!DOCTYPE html>'
function createHTML(props) {
return DOCTYPE + ReactDOMServer.renderToStaticMarkup(e(IndexPage, props))
}
function getIndexHTML(packageInfo, version, baseDir, dir, callback) {
getEntries(path.join(baseDir, dir))
.then(entries => createHTML({ packageInfo, version, dir, entries }))
.then(html => callback(null, html), callback)
}
module.exports = getIndexHTML