ember-cli-toranb/lib/cli/cli.js

Command line tool for developing ambitious ember.js apps

'use strict';

var chalk           = require('chalk');
var lookupCommand   = require('./lookup-command');
var Promise         = require('../ext/promise');
var emberCLIVersion = require('../utilities/ember-cli-version');
var UpdateChecker   = require('../models/update-checker');
var getOptionArgs   = require('../utilities/get-option-args');
var EOL             = require('os').EOL;
var debug           = require('debug')('ember-cli:cli');

function CLI(options) {
  this.ui   = options.ui;
  this.analytics = options.analytics;
  this.testing = options.testing;

  debug('testing %o', !!this.testing);
}

module.exports = CLI;

CLI.prototype.run = function(environment) {
  return Promise.hash(environment).then(function(environment) {
    var args = environment.cliArgs.slice();
    var commandName = args.shift();
    var commandArgs = args;

    getOptionArgs('--verbose', commandArgs).forEach(function(arg){
      process.env['EMBER_VERBOSE_' + arg.toUpperCase()] = 'true';
    });

    if (commandArgs.indexOf('--silent') !== -1) {
      this.ui.setWriteLevel('ERROR');
    }

    this.ui.writeLine('version: ' + emberCLIVersion());

    var CurrentCommand = lookupCommand(environment.commands, commandName, commandArgs, {
      project: environment.project,
      ui: this.ui
    });

    var command = new CurrentCommand({
      ui:        this.ui,
      analytics: this.analytics,
      commands:  environment.commands,
      tasks:     environment.tasks,
      project:   environment.project,
      settings:  environment.settings,
      testing:   this.testing
    });

    var update;

    debug('command: %s', commandName);

    if (commandName !== 'update' && !this.testing) {
      var a = new UpdateChecker(this.ui, environment.settings);
      update = a.checkForUpdates();
    }

    if(!this.testing) {
      process.chdir(environment.project.root);
    }

    return Promise.resolve(update).then(function() {
      return command.validateAndRun(commandArgs);
    }).then(function(exitCode) {
      // TODO: fix this
      // Possibly this issue: https://github.com/joyent/node/issues/8329
      // Wait to resolve promise when running on windows.
      // This ensures that stdout is flushed so acceptance tests get full output
      return new Promise(function(resolve) {
        if (process.platform === 'win32') {
          setTimeout(resolve, 250, exitCode);
        } else {
          resolve(exitCode);
        }
      });
    });

  }.bind(this)).catch(this.logError.bind(this));
};

CLI.prototype.logError = function(error) {
  if (this.testing && error) {
    console.error(error.message);
    console.error(error.stack);
  }

  if (error) {
    if (error instanceof Error) {
      this.ui.writeLine(chalk.red(error.message));

      if (!error.suppressStacktrace) {
        this.ui.writeLine(error.stack.toString().replace(/,/g, EOL));
      }
    } else {
      this.ui.writeLine(chalk.red(error));
    }
  }

  return 1;
};