rsnext/packages/next/cli/next-start.ts
JJ Kasper ead56eaab6
Fix invalid project dir casing breaking Next.js on Windows (#29205)
This fixes Next.js running into unexpected errors on Windows when invalid casing for a project directory is used. I was able to reproduce the issue on my local Windows machine and this resolved the issue there. 

<details>

<summary>screenshot of error while reproducing</summary>

<img width="838" alt="Screen Shot 2021-09-18 at 23 21 40" src="https://user-images.githubusercontent.com/22380829/133915825-ac4abdd2-fcf8-4309-9873-e6d88dfe485d.png">

</details>

## Bug

- [x] Related issues linked using `fixes #number`
- [ ] Integration tests added
- [x] Errors have helpful link attached, see `contributing.md`

Fixes: https://github.com/vercel/next.js/issues/27396
Fixes: https://github.com/vercel/next.js/issues/16535
Fixes: https://github.com/vercel/next.js/issues/17592
2021-09-22 21:29:27 +00:00

75 lines
2 KiB
JavaScript
Executable file

#!/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 { cliCommand } from '../bin/next'
import * as Log from '../build/output/log'
import isError from '../lib/is-error'
import { getProjectDir } from '../lib/get-project-dir'
const nextStart: cliCommand = (argv) => {
const validArgs: arg.Spec = {
// Types
'--help': Boolean,
'--port': Number,
'--hostname': String,
// 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)
--help, -h Displays this message
`)
process.exit(0)
}
const dir = getProjectDir(args._[0])
let port: number =
args['--port'] || (process.env.PORT && parseInt(process.env.PORT)) || 3000
const host = args['--hostname'] || '0.0.0.0'
if (process.env.__NEXT_RAND_PORT) {
port = 0
}
startServer({ dir }, port, host)
.then(async ({ app, actualPort }) => {
const appUrl = `http://${
host === '0.0.0.0' ? 'localhost' : host
}:${actualPort}`
Log.ready(`started server on ${host}:${actualPort}, url: ${appUrl}`)
await app.prepare()
})
.catch((err) => {
console.error(err)
process.exit(1)
})
}
export { nextStart }