othernpm/build/othernpm.js

Run npm commands in other directories

'use strict';

Object.defineProperty(exports, "__esModule", {
  value: true
});
exports.default = othernpm;
/**
 * Create a function which run npm commands by the specified methods.
 * @param {Object} io
 * @param {Function} io.spawn - A function which spawns a new process.
 * @param {Function} io.isDirectory - A function which determines
 *     whether the given path is a directory or not.
 * @param {Function} io.onExit - A callback executed when the process exits.
 * @return {Function} - A function which actually run commands.
 */
function othernpm(_ref) {
  var spawn = _ref.spawn,
      isDirectory = _ref.isDirectory,
      onExit = _ref.onExit;

  /**
   * Run npm commands in the specified directory.
   * (Curried function).
   * @param {string} path - A path to a directory where npm commands run.
   * @param {string|Array} command - The npm command(s) like 'run test'.
   * @param {Object} spawnConfig - A config object passed to 'spawn' function.
   * @return {*} - An object returned by 'io.spawn'.
   */
  return function (path) {
    return function () {
      var command = arguments.length > 0 && arguments[0] !== undefined ? arguments[0] : '';
      var spawnConfig = arguments[1];

      if (!isDirectory(path)) {
        throw new Error('The directory \'' + path + '\' is not found');
      }

      var commands = parseCommand(command);
      var config = Object.assign({
        cwd: path,
        stdio: 'inherit'
      }, spawnConfig);

      var proc = spawn('npm', commands, config);
      if (proc && 'on' in proc) {
        proc.on('exit', onExit);
      }
      return proc;
    };
  };
}

function parseCommand(command) {
  if (Array.isArray(command)) {
    return command;
  }
  return command.trim().length === 0 ? [] : command.trim().split(/\s+/);
}