2022-06-13 14:47:07 +02:00
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import {readdirSync} from 'fs'
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import {writeFile, readFile} from 'fs/promises'
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import path from 'path'
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import type {BuildOptions} from 'esbuild'
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import esbuild from 'esbuild'
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import type {ServerResponse} from 'http'
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import {definedGlobals} from '../../../theatre/devEnv/buildUtils'
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import {mapValues} from 'lodash-es'
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import {createServer, request} from 'http'
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import {spawn} from 'child_process'
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import React from 'react'
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import {renderToStaticMarkup} from 'react-dom/server'
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import {Home} from './Home'
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const playgroundDir = path.join(__dirname, '..')
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const buildDir = path.join(playgroundDir, 'build')
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const sharedDir = path.join(playgroundDir, 'src/shared')
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const personalDir = path.join(playgroundDir, 'src/personal')
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const testDir = path.join(playgroundDir, 'src/tests')
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const dev = /^--dev|-d$/.test(process.argv[process.argv.length - 1])
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const port = 8080
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const clients: ServerResponse[] = []
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type Groups = {
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[group: string]: {
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[module: string]: {
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entryDir: string
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outDir: string
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}
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}
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}
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// Collect all entry directories per module per group
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const groups: Groups = Object.fromEntries(
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[sharedDir, personalDir, testDir]
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.map((groupDir) => {
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try {
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return [
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path.basename(groupDir),
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Object.fromEntries(
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readdirSync(groupDir).map((moduleDir) => [
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path.basename(moduleDir),
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{
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entryDir: path.join(groupDir, moduleDir),
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outDir: path.join(buildDir, path.basename(groupDir), moduleDir),
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},
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]),
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),
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]
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} catch (e) {
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// If the group dir doesn't exist, we just set its entry to undefined
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return [path.basename(groupDir), undefined]
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}
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})
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// and then filter it out.
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.filter((entry) => entry[1] !== undefined),
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)
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// Collect all entry files
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const entryPoints = Object.values(groups)
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.flatMap((group) => Object.values(group))
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.map((module) => path.join(module.entryDir, 'index.tsx'))
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// Collect all output directories
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const outDirs = Object.values(groups).flatMap((group) =>
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Object.values(group).map((module) => module.outDir),
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)
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// Render home page contents
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const homeHtml = renderToStaticMarkup(
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2022-06-13 15:08:07 +02:00
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React.createElement(Home, {
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groups: mapValues(groups, (group) => Object.keys(group)),
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}),
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2022-06-13 14:47:07 +02:00
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)
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const config: BuildOptions = {
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entryPoints,
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bundle: true,
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sourcemap: true,
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outdir: path.join(playgroundDir, 'build'),
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target: ['firefox88'],
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loader: {
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'.png': 'file',
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'.glb': 'file',
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'.gltf': 'file',
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'.svg': 'dataurl',
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},
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define: {
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...definedGlobals,
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'window.__IS_VISUAL_REGRESSION_TESTING': 'true',
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},
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banner: dev
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? {
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js: ' (() => new EventSource("/esbuild").onmessage = () => location.reload())();',
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}
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: undefined,
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watch: dev && {
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onRebuild(error) {
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// Notify clients on rebuild
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clients.forEach((res) => res.write('data: update\n\n'))
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clients.length = 0
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console.log(error ? error : 'Reloading...')
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},
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},
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}
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esbuild
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.build(config)
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.then(async () => {
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// Read index.html template
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const index = await readFile(path.join(__dirname, 'index.html'), 'utf8')
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await Promise.all([
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// Write home page
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writeFile(
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path.join(buildDir, 'index.html'),
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index.replace(/<body>[\s\S]*<\/body>/, `<body>${homeHtml}</body>`),
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),
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// Write module pages
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...outDirs.map((outDir) =>
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writeFile(
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path.join(outDir, 'index.html'),
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// Substitute %ENTRYPOINT% placeholder with the output file path
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index.replace(
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'%ENTRYPOINT%',
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path.join('/', path.relative(buildDir, outDir), 'index.js'),
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),
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),
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),
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])
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})
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.catch((err) => {
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console.log(err)
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return process.exit(1)
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})
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.then(() => {
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// Only start dev server in dev, otherwise just run build and that's it
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if (!dev) {
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return
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}
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// We start ESBuild serve with no build config because it doesn't need to build
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// anything, we are already using ESBuild watch.
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esbuild
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.serve({servedir: path.join(playgroundDir, 'build')}, {})
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.then(({port: esbuildPort}) => {
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// Create proxy
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createServer((req, res) => {
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const {url, method, headers} = req
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// If special /esbuild url requested, subscribe clients to changes
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if (req.url === '/esbuild') {
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return clients.push(
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res.writeHead(200, {
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'Content-Type': 'text/event-stream',
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'Cache-Control': 'no-cache',
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Connection: 'keep-alive',
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}),
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)
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}
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// Otherwise forward requests to ESBuild server
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req.pipe(
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request(
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{
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hostname: '0.0.0.0',
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port: esbuildPort,
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path: url,
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method,
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headers,
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},
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(prxRes) => {
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res.writeHead(prxRes.statusCode!, prxRes.headers)
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prxRes.pipe(res, {end: true})
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},
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),
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{end: true},
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)
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}).listen(port, () => {
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console.log('Playground running at', 'http://localhost:' + port)
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})
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// If not in CI, try to spawn a browser
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if (!process.env.CI) {
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setTimeout(() => {
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const open = {
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darwin: ['open'],
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linux: ['xdg-open'],
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win32: ['cmd', '/c', 'start'],
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}
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const platform = process.platform as keyof typeof open
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if (clients.length === 0)
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spawn(open[platform][0], [
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...open[platform].slice(1),
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`http://localhost:${port}`,
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])
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}, 1000)
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}
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})
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})
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