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p5js-cli.js
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#!/usr/bin/env node
const os = require('os')
const path = require('path')
const fs = require('fs')
const chalk = require('chalk')
const { program } = require('commander')
const { version, description } = require('./package.json')
const sketchesPath = process.env.NODE_ENV == 'test' ? '/tmp' : path.resolve(os.homedir(), 'Sketches')
const p5jsPath = path.resolve(__dirname, 'p5.js')
const faviconPath = path.resolve(p5jsPath, 'favicon.ico')
const startSketch = (sketchPath, options) => {
try {
if (!fs.existsSync(sketchPath)) throw Error(`Error: Path "${sketchPath}" does not exist!`)
const liveServer = require('live-server')
const params = {
root: sketchPath || process.cwd(), // defaults to cwd.
open: true, // when false, it won't load your browser by default.
logLevel: 1, // 0 = errors only, 1 = some, 2 = lots
host: options.host || '0.0.0.0', // host name to serve. defaults to 0.0.0.0.
port: options.port || 8000, // port number to serve. defaults to 8000.
wait: options.wait || 100, // milliseconds to wait for changes before reloading.
mount: [
['/p5.js/', p5jsPath],
['/favicon.ico', faviconPath],
],
}
liveServer.start(params)
} catch (error) {
console.error(error.message)
process.exit(1)
}
}
program
.command('list')
.description('List all your sketches.')
.action(() => {
fs.readdir(sketchesPath, (err, files) => {
if (files) {
console.log('All p5.js sketches in', sketchesPath, ':', files.length)
files.forEach((file) => console.log('🍀', file))
} else console.log('No p5.js sketches in', sketchesPath)
})
})
program
.command('new <sketch>')
.description('Create new p5.js sketch.')
.option('-s, --size <size>', 'p5.js canvas size WxH', '600x600')
.option('-r, --run', 'start coding and serving at once', false)
.option('--webgl', 'use WEBGL', false)
.option('-h, --host <host>', 'host name to serve', '0.0.0.0')
.option('-p, --port <port>', 'port number to serve', 8000)
.option('-w, --wait <milliseconds>', 'milliseconds to wait for changes before reloading', 100)
.action((sketch, options) => {
const sketchPath = path.join(sketchesPath, sketch)
try {
if (fs.existsSync(sketchPath)) throw Error(`Error: Sketch "${sketch}" already exists!`)
if (options.size && !options.size.match(/\d+x\d+/)) throw Error(`Error: canvas size format is worng. `)
const [width, height] = options.size.split('x')
fs.mkdirSync(sketchPath, { recursive: true })
const renderer = options.webgl ? 'WEBGL' : 'P2D'
fs.writeFileSync(
path.join(sketchPath, 'index.html'),
`<!DOCTYPE html>
<html>
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<title>${sketch} - p5.js sketch</title>
<style>
* {
margin: 0px;
padding: 0px;
box-sizing: border-box;
}
body {
background-color: #777;
}
main {
width: 100vw;
height: 100vh;
display: flex;
flex-direction: column;
justify-content: center;
align-items: center;
}
.p5Canvas {
border: 1px solid white;
box-shadow: 4px 4px 4px rgba(0, 0, 0, 0.5);
}
</style>
</head>
<body>
<main></main>
<script src="/p5.js/p5.min.js"></script>
<!-- <script src="/p5.js/p5.sound.min.js"></script> -->
<script src="sketch.js"></script>
</body>
</html>
`
)
fs.writeFileSync(
path.join(sketchPath, 'sketch.js'),
`function setup() {
createCanvas(${width}, ${height}, ${renderer})
}
function draw() {
background(200)
}
`
)
console.info(`Sketch ${chalk.blueBright(sketch)} created successfully!`)
if (options.run) {
require('child_process').exec(`code ${sketchPath} -g ${sketchPath}/sketch.js`)
startSketch(sketchPath, options)
} else console.info(`You may run ${chalk.greenBright(`p5js run ${sketch}`)} to serve it.`)
} catch (error) {
console.error(error.message)
process.exit(1)
}
})
program
.command('run <sketch>')
.description('Serve an exsiting sketch.')
.option('-h, --host <host>', 'host name to serve', '0.0.0.0')
.option('-p, --port <port>', 'port number to serve', 8000)
.option('-w, --wait <milliseconds>', 'milliseconds to wait for changes before reloading', 100)
.option('-c, --code', 'open sketch with VS code', false)
.action((sketch, options) => {
const sketchPath = sketch === '.' ? process.cwd() : path.join(sketchesPath, sketch)
if (options.code) require('child_process').exec(`code ${sketchPath} -g ${sketchPath}/sketch.js`)
startSketch(sketchPath, options)
})
program
.command('code <sketch>')
.description('Open sketch with VS code.')
.option('-r, --run', 'start serving and open your browser.', false)
.option('-h, --host <host>', 'host name to serve', '0.0.0.0')
.option('-p, --port <port>', 'port number to serve', 8000)
.option('-w, --wait <milliseconds>', 'milliseconds to wait for changes before reloading', 100)
.action((sketch, options) => {
const sketchPath = sketch === '.' ? process.cwd() : path.join(sketchesPath, sketch)
try {
if (!fs.existsSync(sketchPath)) throw Error(`Error: Path "${sketchPath}" does not exist!`)
require('child_process').exec(`code ${sketchPath} -g ${sketchPath}/sketch.js`)
if (options.run) startSketch(sketchPath, options)
} catch (error) {
console.error(error.message)
process.exit(1)
}
})
program.version(version).description(description).parse(process.argv)