[BitBucket] Show the total changes of a diff / pullrequest

totalBitBucketChanges.js

//this little js snippet tells you the total amount of additions & deletions of a bitbucket PR or a branch comparison.
//Just open up the site, open up your browser console (Ctrl+Shift+K on Firefox) and paste and execute this code.
//It uses XPath to query all span-elements with the right class

function xpathSum(path) {
    var iter = document.evaluate(path, document, null, XPathResult.UNORDERED_NODE_ITERATOR_TYPE, null);
    var sum = 0;
	var thisNode = iter.iterateNext();
	while (thisNode) {
		var value = parseInt(thisNode.textContent);
		if (!isNaN(value)) {
		    sum += value;
		}
		thisNode = iter.iterateNext();
	}
	return sum;
}

var additions = xpathSum('//span[@class=\"lines-added\"]');
var removes = xpathSum('//span[@class=\"lines-removed\"]');

alert(additions + " / " + removes + " = " + (additions + removes) + "  (total of " + (additions - removes) + ")");