firebase-tools/lib/getProjectId.js

'use strict';

var _ = require('lodash');
var chalk = require('chalk');

var FirebaseError = require('./error');

/**
 * Tries to determine the correct app name for commands that
 * only require an app name. Uses passed in firebase option
 * first, then falls back to firebase.json.
 * @param {Object} options The command-line options object
 * @param {boolean} allowNull Whether or not the firebase flag
 * is required
 * @returns {String} The firebase name
 */
module.exports = function(options, allowNull) {
  if (!options.project && !allowNull) {
    var aliases = _.get(options, 'rc.projects', {});
    var aliasCount = _.size(aliases);

    if (aliasCount === 0) {
      throw new FirebaseError('No project active. Run with ' + chalk.bold('--project <projectId>') + ' or define an alias by\nrunning ' + chalk.bold('firebase use --add'), {
        exit: 1
      });
    } else {
      var aliasList = _.map(aliases, function(projectId, aname) {
        return '  ' + aname + ' (' + projectId + ')';
      }).join('\n');

      throw new FirebaseError('No project active, but project aliases are available.\n\nRun ' + chalk.bold('firebase use <alias>') + ' with one of these options:\n\n' + aliasList);
    }
  }
  return options.project;
};