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GitHub to DeepWiki Button

Adds a button to GitHub pages to open the corresponding page on DeepWiki.

As of 27/04/2025. See the latest version.

// ==UserScript==
// @name         GitHub to DeepWiki Button
// @namespace    http://tampermonkey.net/
// @version      0.2
// @description  Adds a button to GitHub pages to open the corresponding page on DeepWiki.
// @author       You
// @match        https://github.com/*/*
// @icon         https://www.google.com/as2/favicons?sz=64&domain=github.com
// @grant        none
// @license MIT
// @run-at       document-idle
// ==/UserScript==

(function() {
    'use strict';
    function addButton() {
        const actionsList = document.querySelector('.AppHeader-actions');

        if (!actionsList) {
            return false;
        }

        if (document.getElementById('deepwiki-button')) {
            return true;
        }

        const button = document.createElement('button');
        button.textContent = 'Open in DeepWiki';
        button.id = 'deepwiki-button';
        button.type = 'button';

        button.classList.add('btn', 'btn-sm');
        button.addEventListener('click', function() {
            const deepwikiUrl = window.location.href.replace('github.com', 'deepwiki.com');
            window.open(deepwikiUrl, '_blank');
        });
        actionsList.appendChild(button);
        console.log('Tampermonkey - GitHub to DeepWiki: Button added successfully.');
        return true;
    }

    if (!addButton()) {

        const retryInterval = setInterval(() => {
            if (addButton()) {
                clearInterval(retryInterval);
            }
        }, 500);
        setTimeout(() => {
            clearInterval(retryInterval);

            if (!document.getElementById('deepwiki-button')) {
                console.warn('Tampermonkey - GitHub to DeepWiki: Failed to add button after multiple retries.');
            }
        }, 5000);
    }
})();