pinafore/bin/build-inline-script.js

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2018-04-14 23:50:16 +01:00
#!/usr/bin/env node
const crypto = require('crypto')
const fs = require('fs')
const pify = require('pify')
const readFile = pify(fs.readFile.bind(fs))
const writeFile = pify(fs.writeFile.bind(fs))
const path = require('path')
async function main () {
let headScriptFilepath = path.join(__dirname, '../inline-script.js')
let headScript = await readFile(headScriptFilepath, 'utf8')
headScript = `(function () {'use strict'; ${headScript}})()`
let checksum = crypto.createHash('sha256').update(headScript).digest('base64')
let checksumFilepath = path.join(__dirname, '../inline-script-checksum.json')
await writeFile(checksumFilepath, JSON.stringify({ checksum }), 'utf8')
2018-04-14 23:50:16 +01:00
let html2xxFilepath = path.join(__dirname, '../templates/2xx.html')
let html2xxFile = await readFile(html2xxFilepath, 'utf8')
html2xxFile = html2xxFile.replace(
/<!-- insert inline script here -->[\s\S]+<!-- end insert inline script here -->/,
'<!-- insert inline script here --><script>' + headScript + '</script><!-- end insert inline script here -->'
)
await writeFile(html2xxFilepath, html2xxFile, 'utf8')
}
main().catch(err => {
console.error(err)
process.exit(1)
})