mirror of
https://github.com/terribleplan/next.js.git
synced 2024-01-19 02:48:18 +00:00
2f7d743050
* add pretty message if port already use(#927) * fix console async nature * fix linter * clean callbacks code * Check package.json for the startup script * fix path to package * omit callback * remove extra check, code execute in try block * + reason for change start listen port of node http * remove extra code for search package
77 lines
2.1 KiB
JavaScript
Executable file
77 lines
2.1 KiB
JavaScript
Executable file
#!/usr/bin/env node
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import 'source-map-support/register'
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import { resolve, join } from 'path'
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import parseArgs from 'minimist'
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import { existsSync, readFileSync } from 'fs'
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import Server from '../server'
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import { printAndExit } from '../lib/utils'
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import pkgUp from 'pkg-up'
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process.env.NODE_ENV = process.env.NODE_ENV || 'development'
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const argv = parseArgs(process.argv.slice(2), {
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alias: {
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h: 'help',
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p: 'port'
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},
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boolean: ['h'],
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default: {
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p: 3000
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}
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})
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if (argv.help) {
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console.log(`
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Description
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Starts the application in development mode (hot-code reloading, error
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reporting, etc)
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Usage
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$ next dev <dir> -p <port number>
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<dir> represents where the compiled .next folder should go.
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If no directory is provided, .next will be created in the current directory
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Options
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--port, -p A port number on which to start the application
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--help, -h Displays this message
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`)
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process.exit(0)
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}
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const dir = resolve(argv._[0] || '.')
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// Check if pages dir exists and warn if not
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if (!existsSync(dir)) {
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printAndExit(`> No such directory exists as the project root: ${dir}`)
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}
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if (!existsSync(join(dir, 'pages'))) {
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if (existsSync(join(dir, '..', 'pages'))) {
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printAndExit('> No `pages` directory found. Did you mean to run `next` in the parent (`../`) directory?')
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}
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printAndExit('> Couldn\'t find a `pages` directory. Please create one under the project root')
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}
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const srv = new Server({ dir, dev: true })
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srv.start(argv.port)
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.then(async () => {
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if (!process.env.NOW) {
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console.log(`> Ready on http://localhost:${argv.port}`)
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}
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})
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.catch((err) => {
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if (err.code === 'EADDRINUSE') {
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let errorMessage = `Port ${argv.port} is already in use.`
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const pkgAppPath = pkgUp.sync('.')
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const appPackage = JSON.parse(readFileSync(pkgAppPath, 'utf8'))
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const nextScript = Object.entries(appPackage.scripts).find(scriptLine => scriptLine[1] === 'next')
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if (nextScript) errorMessage += `\nUse \`npm run ${nextScript[0]} -- -p <some other port>\`.`
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console.error(errorMessage)
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} else {
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console.error(err)
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}
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process.nextTick(() => process.exit(1))
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})
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