A Tampermonkey script to automatically expand all those pesky folded Github PR comments.

tamper-monkey-expand-github-pr-comments.js

// ==UserScript==
// @name         Recursively expand Github PR comments
// @namespace    http://aheadcreative.co.uk/
// @version      1.0
// @description  Automatically expands all those pesky folded Github PR comments.
// @author		 Dave Smith (@getdave). Please contact for questions and feedback
// @match        https://github.com/*/*/pull/*
// @copyright    2020, Ahead Creative
// @updateURL    https://gist.githubusercontent.com/getdave/9b9087055decf6f6cb7bfada08fcd3d1/raw/
// ==/UserScript==

( function () {
    /** To prevent a race condition */
    let doingIt = false;
    let theTimeout = null;

    console.log("⚠️ Loading all comment threads...");

    function recursiveExpandLoadMore() {

        // Remove all existing timers
        if(theTimeout) {
            clearTimeout(theTimeout);
        }

        const disabledLoadBtns = document.querySelector('.ajax-pagination-btn[disabled]');

        // If any buttons are already in the loading state then requeue
        if(disabledLoadBtns) {
            theTimeout = setTimeout(recursiveExpandLoadMore, 1000);
            return;
        }

        const loadBtn = document.querySelector('.ajax-pagination-btn:not([disabled])');

        // If there are no more load buttons then we're all done.
        if(!loadBtn) {
            console.log("🎉🎉 Hooray! All comments loaded. 🎉🎉");
            return;
        }

        // Trigger the next button
        console.count("⏳ Loading comment set");
        loadBtn.click();

        // Requeue
        theTimeout = setTimeout(recursiveExpandLoadMore, 1000);
    }


    window.addEventListener( 'load', () => {
        // it takes some time to for the page to be ready
        recursiveExpandLoadMore();
    } );

    // listen to GitHub Turbolinks style navigation events
    document.addEventListener( 'pjax:end', () => {
        recursiveExpandLoadMore();
    } );

    // listen to GitHub Turbolinks style navigation events, plan B
    window.addEventListener( 'statuschange', () => {
        recursiveExpandLoadMore();
    } );
} )();