GitHub Commit Compare

Add controls to compare commits.

Versione datata 01/02/2024. Vedi la nuova versione l'ultima versione.

Dovrai installare un'estensione come Tampermonkey, Greasemonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Violentmonkey per installare questo script.

Dovrai installare un'estensione come Tampermonkey o Userscripts per installare questo script.

Dovrai installare un'estensione come ad esempio Tampermonkey per installare questo script.

Dovrai installare un gestore di script utente per installare questo script.

(Ho già un gestore di script utente, lasciamelo installare!)

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione come ad esempio Stylus per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

Dovrai installare un'estensione per la gestione degli stili utente per installare questo stile.

(Ho già un gestore di stile utente, lasciamelo installare!)

// ==UserScript==
// @name             GitHub Commit Compare
// @namespace        https://github.com/jerone/UserScripts
// @description      Add controls to compare commits.
// @author           jerone
// @contributor      darkred
// @copyright        2017+, jerone (https://github.com/jerone)
// @license          CC-BY-NC-SA-4.0; https://creativecommons.org/licenses/by-nc-sa/4.0/legalcode
// @license          GPL-3.0-or-later; http://www.gnu.org/licenses/gpl-3.0.txt
// @homepage         https://github.com/jerone/UserScripts/tree/master/GitHub_Commit_Compare
// @homepageURL      https://github.com/jerone/UserScripts/tree/master/GitHub_Commit_Compare
// @supportURL       https://github.com/jerone/UserScripts/issues
// @contributionURL  https://www.paypal.com/cgi-bin/webscr?cmd=_s-xclick&hosted_button_id=VCYMHWQ7ZMBKW
// @icon             https://github.githubassets.com/pinned-octocat.svg
// @include          https://github.com/*/*/commits
// @include          https://github.com/*/*/commits/*
// @exclude          https://github.com/*/*.diff
// @exclude          https://github.com/*/*.patch
// @version          0.0.3
// @grant            none
// ==/UserScript==

(function () {

  function addButton() {
    var nav;
    if ((nav = document.querySelector('.file-navigation'))) {

      // Check if our group of buttons are already attached.
      // Remove it, as the 'old' buttons don't have events anymore.
      const e = document.getElementById('GitHubCommitCompareGroup');
      if (e) {
        e.parentElement.removeChild(e);
      }
      Array.from(document.querySelectorAll('.GitHubCommitCompareButtonAB')).forEach(function (b) {
        b.parentElement.removeChild(b);
      });

      const c = document.createElement('input');
      c.type = 'checkbox';
      c.addEventListener('change',
        function () {
          const bb = document.querySelectorAll('.GitHubCommitCompareButtonAB');
          if (this.checked) {
            if (bb.length === 0) {
              addCompareButtons();
            } else {
              Array.from(bb).forEach(function (b) {
                b.classList.remove('d-none');
              });
            }
          } else {
            Array.from(bb).forEach(function (b) {
              b.classList.add('d-none');
            });
          }
          const bbb = document.getElementById('GitHubCommitCompareButton');
          if (bbb) bbb.classList.remove('disabled');
        });

      const l = document.createElement('label');
      l.classList.add('tooltipped', 'tooltipped-n');
      l.setAttribute('aria-label', 'Show commit compare buttons');
      l.style.cssText = `
        float: left;
        padding: 3px 10px;
        font-size: 12px;
        font-weight: 600;
        line-height: 20px;
        color: #24292e;
        vertical-align: middle;
        background-color: #fff;
        border: 1px solid rgba(27,31,35,0.2);
        border-right: 0;
        border-top-left-radius: 3px;
        border-bottom-left-radius: 3px;
      `;
      l.appendChild(c);

      const p = document.createElementNS('http://www.w3.org/2000/svg', 'path');
      p.setAttributeNS(null,
        'd',
        'M5 12H4c-.27-.02-.48-.11-.69-.31-.21-.2-.3-.42-.31-.69V4.72A1.993 1.993 0 0 0 2 1a1.993 1.993 0 0 0-1 3.72V11c.03.78.34 1.47.94 2.06.6.59 1.28.91 2.06.94h1v2l3-3-3-3v2zM2 1.8c.66 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2C1.35 4.2.8 3.65.8 3c0-.65.55-1.2 1.2-1.2zm11 9.48V5c-.03-.78-.34-1.47-.94-2.06-.6-.59-1.28-.91-2.06-.94H9V0L6 3l3 3V4h1c.27.02.48.11.69.31.21.2.3.42.31.69v6.28A1.993 1.993 0 0 0 12 15a1.993 1.993 0 0 0 1-3.72zm-1 2.92c-.66 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2z');

      const s = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
      s.classList.add('octicon', 'octicon-diff');
      s.setAttributeNS(null, 'height', 16);
      s.setAttributeNS(null, 'width', 14);
      s.setAttributeNS(null, 'viewBox', '0 0 14 16');
      s.appendChild(p);

      const a = document.createElement('a');
      a.id = 'GitHubCommitCompareButton';
      a.classList.add('btn', 'btn-sm', 'tooltipped', 'tooltipped-n', 'disabled');
      a.setAttribute('href', '#');
      a.setAttribute('rel', 'nofollow');
      a.setAttribute('aria-label', 'Compare these commits');
      a.style.cssText = `
        border-top-left-radius: 0;
        border-bottom-left-radius: 0;
        font-family: "SFMono-Regular", Consolas, "Liberation Mono", Menlo, Courier, monospace;
      `;
      a.appendChild(s);
      a.appendChild(document.createElement("span"));

      const g = document.createElement('div');
      g.id = 'GitHubCommitCompareGroup';
      g.classList.add('float-right');
      g.appendChild(l);
      g.appendChild(a);

      nav.appendChild(g);
    }
  }

  function updateRadioButtons() {
    var compareAdisabled = true;
    var compareBdisabled = false;

    const compares = document.querySelectorAll('.GitHubCommitCompareButtonAB');
    Array.from(compares).forEach(function (compare) {
      const compareA = compare.querySelector('[name="GitHubCommitCompareButtonA"]');
      const compareB = compare.querySelector('[name="GitHubCommitCompareButtonB"]');

      compareA.disabled = compareAdisabled;
      compareA.parentNode.classList.toggle('disabled', compareAdisabled);

      if (compareA.checked) {
        compareBdisabled = true;
      }
      if (compareB.checked) {
        compareAdisabled = false;
      }

      compareB.disabled = compareBdisabled;
      compareB.parentNode.classList.toggle('disabled', compareBdisabled);
    });

    updateCompareButton();
  }

  function updateCompareButton() {
    const repo = document.querySelector('meta[property="og:url"]').content;

    const compareA = document.querySelector('.GitHubCommitCompareButtonAB [name="GitHubCommitCompareButtonA"]:checked');
    const hashA = compareA.parentNode.parentNode.parentNode.querySelector('clipboard-copy').value;
    const compareB = document.querySelector('.GitHubCommitCompareButtonAB [name="GitHubCommitCompareButtonB"]:checked');
    const hashB = compareB.parentNode.parentNode.parentNode.querySelector('clipboard-copy').value;

    const a = document.getElementById('GitHubCommitCompareButton');
    a.setAttribute('href', `${repo}/compare/${hashA}...${hashB}`);
    a.querySelector('span').textContent = ` ${hashA.substring(0, 7)}...${hashB.substring(0, 7)}`;

    //localStorage.setItem('GitHubCommitCompareButtonHashA', hashA);
    //localStorage.setItem('GitHubCommitCompareButtonHashB', hashB);
  }

  function addCompareButtons() {
    const commits = document.querySelectorAll('.commits-list-item .commit-links-cell');
    Array.from(commits).forEach(function (item, index) {
      const c1 = document.createElement('input');
      c1.name = 'GitHubCommitCompareButtonA';
      c1.type = 'radio';
      c1.addEventListener('change', updateRadioButtons);
      if (index === 1) c1.checked = true;

      const l1 = document.createElement('label');
      l1.classList.add('btn', 'btn-outline', 'BtnGroup-item', 'tooltipped', 'tooltipped-s');
      l1.setAttribute('aria-label', 'Choose a base commit');
      l1.appendChild(c1);

      const c2 = document.createElement('input');
      c2.name = 'GitHubCommitCompareButtonB';
      c2.type = 'radio';
      c2.addEventListener('change', updateRadioButtons);
      if (index === 0) c2.checked = true;

      const l2 = document.createElement('label');
      l2.classList.add('btn', 'btn-outline', 'BtnGroup-item', 'tooltipped', 'tooltipped-s');
      l2.setAttribute('aria-label', 'Choose a head commit');
      l2.appendChild(c2);

      // const p3 = document.createElementNS('http://www.w3.org/2000/svg', 'path');
      // p3.setAttributeNS(null,
      //'d',
      //'M5 12H4c-.27-.02-.48-.11-.69-.31-.21-.2-.3-.42-.31-.69V4.72A1.993 1.993 0 0 0 2 1a1.993 1.993 0 0 0-1 3.72V11c.03.78.34 1.47.94 2.06.6.59 1.28.91 2.06.94h1v2l3-3-3-3v2zM2 1.8c.66 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2C1.35 4.2.8 3.65.8 3c0-.65.55-1.2 1.2-1.2zm11 9.48V5c-.03-.78-.34-1.47-.94-2.06-.6-.59-1.28-.91-2.06-.94H9V0L6 3l3 3V4h1c.27.02.48.11.69.31.21.2.3.42.31.69v6.28A1.993 1.993 0 0 0 12 15a1.993 1.993 0 0 0 1-3.72zm-1 2.92c-.66 0-1.2-.55-1.2-1.2 0-.65.55-1.2 1.2-1.2.65 0 1.2.55 1.2 1.2 0 .65-.55 1.2-1.2 1.2z');

      // const s3 = document.createElementNS('http://www.w3.org/2000/svg', 'svg');
      // s3.classList.add('octicon', 'octicon-diff');
      // s3.setAttributeNS(null, 'height', 16);
      // s3.setAttributeNS(null, 'width', 14);
      // s3.setAttributeNS(null, 'viewBox', '0 0 14 16');
      // s3.appendChild(p3);

      // const l3 = document.createElement('a');
      // l3.classList.add('btn', 'btn-outline', 'BtnGroup-item', 'tooltipped', 'tooltipped-sw');
      // l3.setAttribute('aria-label', 'TODO');
      // l3.appendChild(s3);

      const gg = document.createElement('div');
      gg.classList.add('GitHubCommitCompareButtonAB', 'commit-links-group', 'BtnGroup');
      gg.appendChild(l1);
      gg.appendChild(l2);
      //gg.appendChild(l3);

      //item.style.width = '350px';
      if (item.querySelector('.muted-link')) { // Insert after number of comments button.
        item.insertBefore(gg, item.querySelector('.muted-link').nextSibling);
      } else {
        item.insertBefore(gg, item.firstChild);
      }
    });

    updateRadioButtons(); // Update radio buttons.
  }

  // Init.
  addButton();

  // Pjax.
  document.addEventListener('pjax:end', addButton);

})();