beve-cli.js

import R from 'ramda'
import fs from 'fs'
import path from 'path'
import yargs from 'yargs'
import {isLocal} from 'be-goods'

if (!isLocal('gulp', {strict: true})) {
  let where = path.normalize(`${process.cwd()}/node_modules/`)
  console.error('Gulp insists to be installed locally.')
  console.error(`It wasn't found in ${where}.`)
  console.error('Preferably a devDependency, try this:')
  console.error('npm install gulp --save-dev')
  process.exit(1)
}

let found = false
const gulp = [
  path.normalize(process.cwd() + '/node_modules/.bin/gulp'),
  path.join(path.dirname(fs.realpathSync(__filename)), '/gulp'),
  path.normalize(process.cwd() + '/node_modules/beverage/node_modules/gulp/bin/gulp.js')
]
let argv = yargs
  .usage('beverage [gulp-tasks]')
  .option('h', {alias: ['help', '?'], type: 'boolean', description: 'show beverage help + `gulp help --silent`'})
  .option('o', {alias: 'options', type: 'boolean', description: 'same as `gulp beverage --silent`'})
  .argv
let tasks = argv._
let beverage = argv.o || R.contains('beverage', tasks)
let help = argv.h || R.contains('help', tasks) || R.isEmpty(tasks)

// if it's juts node + beverage (with neither task nor options given)
if (process.argv.length <= 2) {
  console.log('')
  console.log('Usage: beverage -?')
}

// *non-beverage-options*
// not passed on to gulp
process.argv = R.difference(process.argv,
  ['-o', '--options', '-?', '-h', '--help'])

if (beverage || help) {
  // this is a silent gulp
  process.argv.push('--silent')

  // add tasks for options
  if (help && !R.contains('help', tasks)) {
    process.argv.splice(2, 0, 'help')
  }
  if (beverage && !R.contains('beverage', tasks)) {
    process.argv.splice(2, 0, 'beverage')
  }
}

for (let file of gulp) {
  try {
    require(file) // delegate to gulp
    found = true
    if (argv.h) {
      console.log(
        '\n' +
        yargs.help() +
        '\nRunning `gulp ' +
        process.argv.slice(2).join(' ') +
        '` now...'
      )
    }
    break
  } catch (e) {}
}

if (!found) {
  console.error('gulp not found at:'); console.error(gulp)
  process.exit(1)
}