Because sometimes you just want to deploy to GAE and pester co-workers in Slack.

gulp-gae-deploy-task.js

var git = require('git-rev-sync');
var slackconfig = require('./slackbot.json');

var slack = require('gulp-slack')({
  url: slackconfig.webhook_url,
  channel: slackconfig.channel,
  user: slackconfig.user,
  icon_emoji: slackconfig.icon_emoji
});

var packageJson = require('./package.json');

gulp.task('deploy:gae', ['default'], function() {
  var showhash = git.short();

  exec('appcfg.py update app.yaml', function(err, stdout, stderr) {
    if (err) {
      console.log('Process exited with error code', err.code);
      return;
    }
    console.log(stdout);
    console.log(stderr);
    slack('[SHIP AHOY!] I deployed _' + showhash + '_ to App Engine for *' + packageJson.name + '*.');
  });
});

slackbot.json

{
  "webhook_url": "YOUR_SLACK_WEBHOOK",
  "user": "S.S. Reluctant",
  "icon_emoji": ":ship:",
  "channel": "#my-deploy-channel"
}