Wanted to take a screenshot of GitHub diff-stats UI but didn't want to count some of the files/changes in the commit so I wrote a quick script to update them after deleting unwanted nodes from the DOM.

update-github-diffstats.js

/*
 * Use Chrome web inspector to remove elements for files 
 * you don't want to count in the diff stats, then run this
 * function to update the diff stats in the UI
*/
function () {
    var allAdditions = 0;
    $(".diffstat > a").each( function (index, element) {
        $(".diffstat-bar", this).remove();
        var addition = $.trim($(this).text().replace(/[A-Za-z$-]/g, ""));
        allAdditions += parseInt(addition);
    });
    
    var allFiles = $("#toc > .content li").size();
    
    console.log(allFiles+' files changed with '+ allAdditions +' additions')
    
    // update the dom
    $("#toc > .explain > strong").eq(1).text( allAdditions + " additions");
    $("#toc > .explain > strong").eq(0).text( allFiles + " changed files");
    
}();