next.js/bin/next-export

#!/usr/bin/env node
import { resolve, join } from 'path'
import { existsSync } from 'fs'
import parseArgs from 'minimist'
import exportApp from '../server/export'
import { printAndExit } from '../lib/utils'

process.env.NODE_ENV = process.env.NODE_ENV || 'production'

const argv = parseArgs(process.argv.slice(2), {
  alias: {
    h: 'help',
    v: 'verbose',
    o: 'outdir'
  },
  boolean: ['h'],
  default: {
    v: false,
    o: null
  }
})

if (argv.help) {
  console.log(`
    Description
      Exports the application for production deployment

    Usage
      $ next export [options] <dir>

    <dir> represents where the compiled dist folder should go.
    If no directory is provided, the dist folder will be created in the current directory.
    You can set a custom folder in config https://github.com/zeit/next.js#custom-configuration, otherwise it will be created inside '.next'

    Options
      -h - list this help
      -v - run export with the verbose mode
      -o - set the output dir (defaults to '.out')
  `)
  process.exit(0)
}

const dir = resolve(argv._[0] || '.')

// Check if pages dir exists and warn if not
if (!existsSync(dir)) {
  printAndExit(`> No such directory exists as the project root: ${dir}`)
}

if (!existsSync(join(dir, 'pages'))) {
  if (existsSync(join(dir, '..', 'pages'))) {
    printAndExit('> No `pages` directory found. Did you mean to run `next` in the parent (`../`) directory?')
  }

  printAndExit('> Couldn\'t find a `pages` directory. Please create one under the project root')
}

const options = {
  verbose: argv.verbose,
  outdir: argv.outdir ? resolve(argv.outdir) : resolve(dir, '.out')
}

exportApp(dir, options)
  .catch((err) => {
    console.error(err)
    process.exit(1)
  })