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Github Clear Date

Add a clear date to the relative time in Github

当前为 2023-11-10 提交的版本，查看 最新版本。

  1. // ==UserScript==
  2. // @name        Github Clear Date
  3. // @namespace   https://github.com/wzshiming/userscripts
  4. // @version     0.4.1
  5. // @description Add a clear date to the relative time in Github
  6. // @author      wzshiming
  7. // @match       *://github.com/*
  8. // @grant       none
  9. // @icon        https://github.githubassets.com/pinned-octocat.svg
  10. // @supportURL  https://github.com/wzshiming/userscripts/issues
  11. // @license     MIT License
  12. // ==/UserScript==
  13.  
  14. (function () {
  15.     'use strict';
  16.  
  17.     let MutationObserver = window.MutationObserver ||
  18.         window.WebKitMutationObserver ||
  19.         window.MozMutationObserver;
  20.  
  21.     let config = {
  22.         childList: true,
  23.         subtree: true,
  24.         attributes: true,
  25.     };
  26.     let observer = new MutationObserver(mutation);
  27.     observer.observe(document.body, config);
  28.     mutate(document.body);
  29. })();
  30.  
  31. function mutate(elem) {
  32.     elem.querySelectorAll('relative-time').forEach(formatRelativeTime);
  33. }
  34.  
  35. function mutation(mutationsList) {
  36.     for (let mutation of mutationsList) {
  37.         mutate(mutation.target.parentNode);
  38.     }
  39. }
  40.  
  41. function formatRelativeTime(item) {
  42.     let text = item.shadowRoot.innerHTML;
  43.     if (text.length == 0 || text.indexOf("(") >= 0) {
  44.         return
  45.     }
  46.  
  47.     let datetime = new Date(item.datetime);
  48.     let now = new Date();
  49.  
  50.     let dateStr = formatTime(datetime, now)
  51.     if (dateStr.length == 0) {
  52.         return
  53.     }
  54.     item.shadowRoot.innerHTML += "(" + dateStr + ")";
  55.     return
  56. }
  57.  
  58. function formatDate(datetime, now) {
  59.     let hour = datetime.getHours();
  60.     let minute = datetime.getMinutes();
  61.     let second = datetime.getSeconds();
  62.     let nowHour = now.getHours();
  63.     let nowMinute = now.getMinutes();
  64.     let nowSecond = now.getSeconds();
  65.  
  66.     if (hour == nowHour &&
  67.         minute == nowMinute &&
  68.         second == nowSecond) {
  69.         return "";
  70.     }
  71.  
  72.     return formatNumber(hour) + ":" + formatNumber(minute) + ":" + formatNumber(second);
  73. }
  74.  
  75. function formatTime(datetime, now) {
  76.     let year = datetime.getFullYear();
  77.     let month = datetime.getMonth();
  78.     let day = datetime.getDate();
  79.     let nowYear = now.getFullYear();
  80.     let nowMonth = now.getMonth();
  81.     let nowDay = now.getDate();
  82.  
  83.     if (year == nowYear &&
  84.         month == nowMonth &&
  85.         day == nowDay) {
  86.         return formatDate(datetime, now);
  87.     }
  88.  
  89.     // append date
  90.     if (year == nowYear) { // this year will be omitted
  91.         return formatNumber(month + 1) + "/" + formatNumber(day);
  92.     }
  93.  
  94.     let century = Math.round(year / 100);
  95.     let nowCentury = Math.round(nowYear / 100);
  96.     if (century == nowCentury) { // this century will be omitted
  97.         return formatNumber(year - 2000) + "/" + formatNumber(month + 1) + "/" + formatNumber(day);
  98.     }
  99.  
  100.     return formatNumber(year) + "/" + formatNumber(month + 1) + "/" + formatNumber(day);
  101. }
  102.  
  103. function formatNumber(num) {
  104.     return num < 10 ? "0" + num : "" + num;
  105. }