0x/cmd.js

#!/usr/bin/env node
const path = require('path')

cmd()

function cmd () {
  var argv = process.argv.slice(2)

  if (~argv.indexOf('--cmd') || ~argv.indexOf('-c')) {
    return require('./command')(argv)
  }

  if (!argv.length || ~argv.indexOf('-h') || ~argv.indexOf('--help')) {
    process.stdout.write('\n')
    banner()
    return require('fs')
      .createReadStream(__dirname + '/usage.txt')
      .pipe(process.stdout)
  }

  if (~argv.indexOf('-v') || ~argv.indexOf('--version')) {
    return banner()
  }

  var stacksOnlyIx = argv.indexOf('--stacks-only')
  if (argv[stacksOnlyIx + 1] === '-') {
    argv[stacksOnlyIx] = '--stacks-only=-'
    argv.splice(stacksOnlyIx + 1, 1)
  }

  // get the position of node binary in argv; else stay -1
  var ix = -1
  var bin = ''
  argv.forEach((el, index) => {
    if (path.basename(el) === 'node') {
      ix = index
      bin = argv[index]
      return
    }
  })

  if (ix === -1) {
    var c = argv.length
    while (c--) {
      if (argv[c][0] !== '-') break
    }
    argv.splice(c, 0, 'node')
    ix = c
  }

  var args = require('minimist')(argv.slice(0, ix))
  args.node = argv.slice(ix + 1)

  args.delay = typeof args.delay === 'number' ? args.delay : args.d
  if (typeof args.delay !== 'number') args.delay = 300
  args['output-dir'] = typeof args['output-dir'] === 'string' ? args['output-dir'] : args.o
  // also pass binary, if provided. Fallback to simple 'node'
  require('./')(args, bin ? bin : 'node')
}

function banner() {
  var version = require('./package.json').version
  process.stdout.write('0x ' + version + '\n')
}