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Userscript: GitHub Awesome Stargazers
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| // ==UserScript== | |
| // @name GitHub Awesome Stargazers | |
| // @description Augments the main markdown section of GitHub (i.e. README.md) by retrieving star count for each repo from the GitHub API. Intended for surfing "awesome" GitHub lists. | |
| // @author Werner Sævland | |
| // @namespace https://github.com/wernersa/ | |
| // @version 1.0 | |
| // @include https://github.*/*/* | |
| // @supportURL https://gist.github.com/wernersa/a8df0dd03b6995d70a87934d0814d60d | |
| // @license GPLv2; http://www.gnu.org/licenses/ | |
| // ==/UserScript== | |
| /** | |
| * This userscript draws on code from the following repository | |
| * https://github.com/Lorentz83/userscripts -> GoogleImageDirectLink | |
| */ | |
| /** | |
| * This program is free software: you can redistribute it and/or modify | |
| * it under the terms of the GNU General Public License as published by | |
| * the Free Software Foundation, either version 2 of the License, or | |
| * (at your option) any later version. | |
| * | |
| * This program is distributed in the hope that it will be useful, | |
| * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
| * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
| * GNU General Public License for more details. | |
| * | |
| * You should have received a copy of the GNU General Public License | |
| * along with this program. If not, see <http://www.gnu.org/licenses/>. | |
| */ | |
| // Personal access token | |
| // GitHub API has a rate limit of 60 requests/hr for unauthorized calls, but with authorization the limit is 5000 requests/hr. | |
| // Visit the following page https://github.com/settings/tokens. When registering the token you dont need to check any boxes. | |
| var OAuth_TOKEN = ""; | |
| var getJSON = function (url, callback) { | |
| var xhr = new XMLHttpRequest(); | |
| xhr.open('GET', url, true); | |
| if (OAuth_TOKEN) xhr.setRequestHeader("Authorization", "token " + OAuth_TOKEN); | |
| xhr.responseType = 'json'; | |
| console.trace("Sending request to: " + url); | |
| xhr.onload = function () { | |
| var status = xhr.status; | |
| if (status == 200) { | |
| callback(null, xhr.response); | |
| } else { | |
| callback(status); | |
| } | |
| }; | |
| xhr.send(); | |
| }; | |
| var stopEvent = function (event) { | |
| event.stopPropagation(); | |
| }; | |
| var fixRepoLink = function (div, stars) { | |
| if (div.dataset.fixed) { | |
| return; | |
| } | |
| var a = div.getElementsByTagName('a')[0]; | |
| div.dataset.fixed = true; | |
| var stars_counter = document.createElement('button'); | |
| stars_counter.className = 'btn btn-sm disabled'; | |
| stars_counter.style = "color: black;"; | |
| stars_counter.innerHTML = ['<svg aria-hidden="true" class="octicon octicon-star" height="16" version="1.1" viewBox="0 0 14 16" width="14">', | |
| '<path fill-rule="evenodd" d="M14 6l-4.9-.64L7 1 4.9 5.36 0 6l3.6 3.26L2.67 14 7 11.67 11.33 14l-.93-4.74z"></path>', | |
| '</svg> ', | |
| stars].join(""); | |
| a.innerHTML = a.innerHTML + " - "; | |
| a.parentNode.insertBefore(stars_counter, a.nextSibling); | |
| }; | |
| var waitLink = { | |
| _conf: { | |
| attributes: true, | |
| attributeFilter: ['href'] | |
| }, | |
| _observer: new MutationObserver(function (mutations) { | |
| mutations.forEach(function (mutation) { | |
| if (mutation.target.parentNode !== null) { | |
| waitLink.inject(mutation.target.parentNode); | |
| } | |
| }); | |
| }), | |
| _watch: function (a) { | |
| waitLink._observer.observe(a, waitLink._conf); | |
| }, | |
| reset: function () { | |
| waitLink._observer.disconnect(); | |
| }, | |
| inject: function (div) { | |
| var as = div.getElementsByTagName('a'); | |
| var regexp = /github.com\/([^\/]+\/[^\/]+)\/?$/g; | |
| var repoName = regexp.exec(as[0].href); | |
| if (as.length > 0) { | |
| if (as[0].href !== '') { | |
| // Check that the link refers to a github.com/*/*/ page | |
| if (repoName === null) { | |
| return; | |
| } | |
| // Check that the link is not a reference to the same page | |
| if ((as[0].href.indexOf(window.location.href.split('#')[0])) < 0) { | |
| var star_count = localStorage["stars_" + repoName[1]]; | |
| // If the stars in not stored in local storage, retrieve it from API | |
| if (!star_count) { | |
| getJSON('https://api.github.com/repos/' + repoName[1], | |
| function (err, data) { | |
| if (err !== null) { | |
| console.trace('Something went wrong: ' + err); | |
| } else { | |
| console.trace("Fixing star counter for repo " + repoName[1] + " by request to GitHub API."); | |
| localStorage["stars_" + repoName[1]] = data.stargazers_count; | |
| fixRepoLink(div, data.stargazers_count); | |
| } | |
| }); | |
| } else { | |
| console.trace("Fixing star counter for repo " + repoName[1] + " using cached value."); | |
| fixRepoLink(div, star_count); | |
| } | |
| } | |
| } | |
| } else { | |
| waitLink._watch(as[0]); | |
| } | |
| } | |
| }; | |
| var fixStars = function () { | |
| var lists = document.querySelectorAll("article > ul"); | |
| console.log(lists); | |
| if (lists === null) { | |
| console.log('Cannot find the <ul> tags in this document?'); | |
| return; | |
| } | |
| for (var ul_element = 0; ul_element < lists.length; ul_element++) { | |
| var list_item = lists.item(ul_element); | |
| var lis = list_item.children; | |
| for (var i = 0; i < lis.length; i++) { | |
| var li = lis.item(i); | |
| waitLink.inject(li); | |
| } | |
| } | |
| }; | |
| fixStars(); |
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