UserScript: Github Links to Star Badges

README.md

github-links_to_star-badges.js

// ==UserScript==
// @name         Github Links to Star Badges
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Adds github stars badges after github links.
// @author       TrueFurby
// @match        https://awesome-go.com/
// @require      http://code.jquery.com/jquery-latest.js
// @grant        none
// ==/UserScript==

(function() {
    'use strict';
    var gitLinks = $("a[href*='github.com']");
    console.log(gitLinks.length + ' git links');
    gitLinks.each(function(){
        var a = $(this);
        var link = a.attr('href');
        var re = /github.com\/([^\/]+)\/([^\/]+)\/?/;
        var matches = link.match(re);
        if (!matches || matches.length<3) {
            return;
        }
        var user = matches[1]||'stars';
        var repo = matches[2]||'badges';
        var shield = 'https://img.shields.io/github/stars/'+user+'/'+repo+'.svg';
        console.debug("git link:", {
            'a': a,
            'link': link,
            'user': user,
            'repo': repo,
            'shield': shield,
        });
        var b = document.createElement('img');
        b.style.margin = '0 0 0 5px';
        b.style.padding = '0';
        b.src = shield;
        b.height = 20;
        a.after(b);
    });
})();