yt-highlight.user.js

// ==UserScript==
// @name         Youtrack highlight issues
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  Highlight YT links
// @author       Artyom
// @match        https://github.com/*
// @grant        none
// ==/UserScript==

// partly copied from https://gist.github.com/ampedandwired/8b62d7a5b7ca5e896615d782d7e279d0

(function() {
    'use strict';

    if (!NodeList.prototype.forEach) NodeList.prototype.forEach = Array.prototype.forEach;
    if (!NodeList.prototype.indexOf) NodeList.prototype.indexOf = Array.prototype.indexOf;

    var last = Date.now() - 2000;

    function addYTLinks() {
        // list of issues/PRs
        var listPattern = /\s*(<a[^>]*>)\s*\[?(CSLA|CSLD|CSLTC|CSE|CSM|CSL|DAEF|DEVOPS|IMRF|LW|MT|SRK|SU|TW|VD)-?([0-9]{2,4})\]?/ig;
        document.querySelectorAll('.js-issue-row .col-9').forEach(function(el) {
            el.innerHTML = el.innerHTML.replace(listPattern, function(match, p1, p2, p3) {
                return '<a class="h4 muted-link" href="https://issues.serokell.io/issue/' +
                       p2 + '-' + p3 + '">[' + p2 + '-' + p3 + ']</a>' + p1;
            });
        });

        // issue headers
        var titlePattern = /\s*(<span[^>]*>)\s*\[?(CSLA|CSLD|CSLTC|CSE|CSM|CSL|DAEF|DEVOPS|IMRF|LW|MT|SRK|SU|TW|VD)-?([0-9]{2,4})\]?/ig;
        document.querySelectorAll('.gh-header-title').forEach(function(el) {
            el.innerHTML = el.innerHTML.replace(titlePattern, function(match, p1, p2, p3) {
                return p1 + '<a class="muted-link" href="https://issues.serokell.io/issue/' +
                       p2 + '-' + p3 + '">[' + p2 + '-' + p3 + ']</a>';
            });
        });
    }

    function rerender() {
        if (Date.now() - last > 1000) {
            addYTLinks();
            last = Date.now();
        }
    }

    document.addEventListener('load', rerender, true);
    window.setInterval(rerender, 100);
})();