npm-npw/lib/npm/spawnNPM.js

Wraps `npm 5` with extra commands and corrects line-endings in `package*.json` to match .git config.

'use strict';

const arrvl = require('arrvl');
const spawn = require('cross-spawn');

/**
 * Spawn the NPM command.
 * @param  {String[]} args    Command arguments.
 * @param  {Boolean}  verbose Display more information.
 * @return {Promise}          Promise of spawn.
 */
module.exports = function spawnNPM(args, verbose) {
  args = arrvl(args, []);
  // if (verbose) {
  // 	args.push('--verbose');
  // }
  // else {
  // 	args.push('--silent');
  // }

  return new Promise((resolve, reject) => {
    let npm = spawn('npm', args);
    if (verbose) {
      npm.stdout.pipe(process.stdout);
      npm.stderr.pipe(process.stderr);
    }
    npm.on('error', err => {
      reject(err);
    });
    npm.on('close', () => {
      resolve();
    });
  });
};