[TamperMonkey] Download all files of commit -- Adds a custom button to github commit view pages from which all the changed files can be downloaded. Useful for when something is removed from a repository and only the commit information remains.

script.js

// ==UserScript==
// @name         Github commit files downloader
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://github.com/*/*/commit/*
// @grant        none
// ==/UserScript==

(function()
{
    'use strict';

	function DownloadAll()
	{
        var fileLinks = Array.prototype.slice.call(
    					document.querySelectorAll('div.file-header.js-file-header > div.file-actions > a')
    				).map(x => x.href);

		for(var i = 0; i < fileLinks.length; i++)
		{
			var element = document.createElement('a');

			element.setAttribute('href', 'data:text/plain;charset=utf-8,' + encodeURIComponent('https://minhaskamal.github.io/DownGit/#/home?url=' + fileLinks[i]));
			element.setAttribute('download', fileLinks[i].substring(fileLinks[i].lastIndexOf('/') + 1));

			element.style.display = 'none';

			document.body.appendChild(element);
			element.click();
			document.body.removeChild(element);
		}
	}

    function htmlToElement(html)
    {
	    var template = document.createElement('template');
	    html = html.trim();
	    template.innerHTML = html;
	    return template.content.firstChild;
	}

    document
    .querySelector('#js-repo-pjax-container > div.container.new-discussion-timeline.experiment-repo-nav > div.repository-content > div.full-commit')
    .prepend(
    	htmlToElement('<button class="btn btn-outline float-right" style = "margin-left: 10px;" id = "CustomDLButton">Download files</button>')
    );

    document.getElementById("CustomDLButton").addEventListener("click", DownloadAll);
})();