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next.js/bin/next-dev
Stephen Sauceda 955f6817c4 Add cli usage information (#423)
* add cli usage: `next init`

* add cli usage: `next --help`

* add cli usage: `next build --help`

* add cli usage: `next dev --help`

* add cli usage: `next init --help`

* add cli usage: `next start --help`

* use set

* build, start and dev all accept a directory

* typo and conciseness
2016-12-18 12:28:34 -08:00

61 lines
1.5 KiB
JavaScript
Executable file

#!/usr/bin/env node
import 'source-map-support/register'
import { resolve, join } from 'path'
import parseArgs from 'minimist'
import { exists } from 'mz/fs'
import Server from '../server'
const argv = parseArgs(process.argv.slice(2), {
alias: {
h: 'help',
p: 'port'
},
boolean: ['h'],
default: {
p: 3000
}
})
if (argv.help) {
console.log(`
Description
Starts the application in development mode (hot-code reloading, error
reporting, etc)
Usage
$ next dev <dir> -p <port number>
<dir> represents where the compiled .next folder should go.
If no directory is provided, .next will be created in the current directory
Options
--port, -p A port number on which to start the application
--help, -p Displays this message
`)
process.exit(0)
}
const dir = resolve(argv._[0] || '.')
const srv = new Server({ dir, dev: true })
srv.start(argv.port)
.then(async () => {
if (!process.env.NOW) {
console.log(`> Ready on http://localhost:${argv.port}`)
}
// Check if pages dir exists and warn if not
if (!(await exists(join(dir, 'pages')))) {
if (await exists(join(dir, '..', 'pages'))) {
console.error('> No `pages` directory found. Did you mean to run `next` in the parent (`../`) directory?')
} else {
console.error('> Couldn\'t find a `pages` directory. Please create one under the project root')
}
process.exit(1)
}
})
.catch((err) => {
console.error(err)
process.exit(1)
})