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next.js/bin/next-dev

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#!/usr/bin/env node
import { exec } from 'child_process'
import { resolve, join } from 'path'
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import parseArgs from 'minimist'
import Server from '../server'
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import HotReloader from '../server/hot-reloader'
import webpack from '../server/build/webpack'
import { exists } from 'mz/fs'
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const argv = parseArgs(process.argv.slice(2), {
alias: {
h: 'help',
p: 'port'
},
boolean: ['h'],
default: {
p: 3000
}
})
const open = url => {
const openers = { darwin: 'open', win32: 'start' }
const cmdName = openers[process.platform] || 'xdg-open'
exec(`${cmdName} ${url}`)
}
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const dir = resolve(argv._[0] || '.')
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webpack(dir, { hotReload: true })
.then(async (compiler) => {
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const hotReloader = new HotReloader(compiler)
const srv = new Server({ dir, dev: true, hotReloader })
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await srv.start(argv.port)
console.log('> Ready on http://localhost:%d', argv.port)
// Check if pages dir exists and warn if not
if (!(await exists(join(dir, 'pages')))) {
if (await exists(join(dir, '..', 'pages'))) {
console.warn('> No `pages` directory found. Did you mean to run `next` in the parent (`../`) directory?')
} else {
console.warn('> Couldn\'t find a `pages` directory. Please create one under the project root')
}
}
if (!/^(false|0)$/i.test(process.env.NEXT_OPEN_BROWSER)) {
open(`http://localhost:${argv.port}`)
}
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})
.catch((err) => {
console.error(err)
exit(1)
})