Tapermonkey script to add Travis CI badges to GitHub Classroom

github-classroom-travis-badge.js

// ==UserScript==
// @name         GitHub Classroom Badges
// @namespace    https://compsci.rocks/
// @version      0.1
// @description  Add Travis build badges to repos in GitHub Classroom
// @author       Ryan Nutt
// @website	 	 https://compsci.rocks/
// @include      /^https?://classroom\.github\.com/classrooms/(.*)?/(group-)?assignments/(.*)?
// @grant        none
// @require  	 http://ajax.googleapis.com/ajax/libs/jquery/1.7.2/jquery.min.js
// @require  	 https://gist.github.com/raw/2625891/waitForKeyElements.js
// ==/UserScript==

function addBadge(node) {
	var token = 'YOUR_TRAVIS_TOKEN';
	var btn = node.find('a.btn[role="button"]');
	if (btn.length) {
		var href = btn.attr('href');
		var src = href.replace('github.com', 'api.travis-ci.com') + '.svg?token=' + token + '&branch=master';
		$('<div><a href="' + href.replace('github.com', 'travis-ci.com') + '/builds" target="_blank"><img class="travis-badge" src="' + src + '"></a></div>').insertAfter(btn);
	}
}
waitForKeyElements('div.assignment-container .assignment-repo-list-item', addBadge);