/
next-start.ts
executable file
·100 lines (87 loc) · 2.73 KB
/
next-start.ts
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#!/usr/bin/env node
import arg from 'next/dist/compiled/arg/index.js'
import { startServer } from '../server/lib/start-server'
import { printAndExit } from '../server/lib/utils'
import * as Log from '../build/output/log'
import isError from '../lib/is-error'
import { getProjectDir } from '../lib/get-project-dir'
import { cliCommand } from '../lib/commands'
const nextStart: cliCommand = (argv) => {
const validArgs: arg.Spec = {
// Types
'--help': Boolean,
'--port': Number,
'--hostname': String,
'--keepAliveTimeout': Number,
// Aliases
'-h': '--help',
'-p': '--port',
'-H': '--hostname',
}
let args: arg.Result<arg.Spec>
try {
args = arg(validArgs, { argv })
} catch (error) {
if (isError(error) && error.code === 'ARG_UNKNOWN_OPTION') {
return printAndExit(error.message, 1)
}
throw error
}
if (args['--help']) {
console.log(`
Description
Starts the application in production mode.
The application should be compiled with \`next build\` first.
Usage
$ next start <dir> -p <port>
<dir> represents the directory of the Next.js application.
If no directory is provided, the current directory will be used.
Options
--port, -p A port number on which to start the application
--hostname, -H Hostname on which to start the application (default: 0.0.0.0)
--keepAliveTimeout Max milliseconds to wait before closing inactive connections
--help, -h Displays this message
`)
process.exit(0)
}
const dir = getProjectDir(args._[0])
let port: number =
typeof args['--port'] === 'number'
? args['--port']
: (process.env.PORT && parseInt(process.env.PORT)) || 3000
const host = args['--hostname'] || '0.0.0.0'
if (process.env.__NEXT_FORCED_PORT) {
port = parseInt(process.env.__NEXT_FORCED_PORT, 10) || 0
}
const keepAliveTimeoutArg: number | undefined = args['--keepAliveTimeout']
if (
typeof keepAliveTimeoutArg !== 'undefined' &&
(Number.isNaN(keepAliveTimeoutArg) ||
!Number.isFinite(keepAliveTimeoutArg) ||
keepAliveTimeoutArg < 0)
) {
printAndExit(
`Invalid --keepAliveTimeout, expected a non negative number but received "${keepAliveTimeoutArg}"`,
1
)
}
const keepAliveTimeout = keepAliveTimeoutArg
? Math.ceil(keepAliveTimeoutArg)
: undefined
startServer({
dir,
hostname: host,
port,
keepAliveTimeout,
})
.then(async (app) => {
const appUrl = `http://${app.hostname}:${app.port}`
Log.ready(`started server on ${host}:${app.port}, url: ${appUrl}`)
await app.prepare()
})
.catch((err) => {
console.error(err)
process.exit(1)
})
}
export { nextStart }