const commandLineArgs = require('command-line-args')
/* first - parse the main command */
const mainDefinitions = [
  { name: 'command', defaultOption: true }
]
const mainOptions = commandLineArgs(mainDefinitions, { stopAtFirstUnknown: true })
const argv = mainOptions._unknown || []
console.log('mainOptions\n===========')
console.log(mainOptions)
/* second - parse the merge command options */
if (mainOptions.command === 'merge') {
  const mergeDefinitions = [
    { name: 'squash', type: Boolean },
    { name: 'message', alias: 'm' }
  ]
  const mergeOptions = commandLineArgs(mergeDefinitions, { argv })
  console.log('\nmergeOptions\n============')
  console.log(mergeOptions)
}