工作-gitlab项目 提交合并请求时 自动识别分支

gitlab项目 提交合并请求时，为了防止出现错误，写个脚本，提示自己，源分支-目标分支自动选取和识别。

需要在@match里配置
https://xxx.com/username_xxx/project_xxx/merge_requests/new

// ==UserScript==
// @name         GIT 合并请求时，自动识别分支
// @namespace    http://tampermonkey.net/
// @version      0.1
// @description  try to take over the world!
// @author       You
// @match        https://xxx.com/username_xxx/project_xxx/merge_requests/new
// @require      https://cdn.jsdelivr.net/npm/jquery@3.2.1/dist/jquery.min.js
// @license      GPL License
// @grant        GM_download
// @grant        GM_openInTab
// @grant        GM_setValue
// @grant        GM_getValue
// @grant        GM_xmlhttpRequest
// @grant        GM_addStyle
// @grant        unsafeWindow
// @grant        GM_setClipboard
// @grant        GM_getResourceURL
// @grant        GM_getResourceText
// @run-at document-end     // 当DOMContentLoaded事件被触发时或者之后注入
// ==/UserScript==

(function() {
    'use strict';
    if(!/merge_requests\/new/.test(location.href)){return}
    let lastSelectBranch = localStorage.getItem('lastSelectBranch') || 'feature/2.5.0';
    let selectGroup = $('.js-merge-request-new-compare .col-lg-6 .merge-request-select:last-child');
    // 自动选择对应分支
    selectGroup.eq(0).find('.dropdown-menu-toggle').click();
    let firstTimer = setInterval(()=>{
        let liList = selectGroup.eq(0).find('.dropdown-content ul li a');
        if(liList.length>0){
            liList.eq(0).click()
            clearInterval(firstTimer);
            liList.each((index,item)=>{
                if($(item).attr('data-ref') === lastSelectBranch){
                    item.click();
                }
            })
            selectGroup.eq(1).find('.dropdown-menu-toggle').click();

            let secTimer = setInterval(()=>{
                let liList = selectGroup.eq(1).find('.dropdown-content ul li a');
                if(liList.length>0){
                    liList.eq(0).click()
                    clearInterval(secTimer);
                    liList.each((index,item)=>{
                        if($(item).attr('data-ref') === lastSelectBranch){
                            item.click();
                        }
                    })
                }
            },20)

        }
    },20)
    // 监听下拉单，如果左右分支不一致，进行强提醒
    let left = '';
    let right = '';
    selectGroup.eq(0).find('.dropdown-content').click(function(e){
        if(e.target){
            left=  e.target.dataset.ref;
            diffLeftRight()
        }
    })
    selectGroup.eq(1).find('.dropdown-content').click(function(e){
        if(e.target){
            right=  e.target.dataset.ref;
            diffLeftRight()
        }
    })
    function diffLeftRight(){
        if(left!==right){
            if($('#btn-warning-txt').length===0){
                $('.mr-compare-btn').after('<input type="button" value="左右分支不一样，注意检查" id="btn-warning-txt" class="btn btn-danger mr-compare-btn" style="margin-left:1rem;transition-duration:.2s;transform:scale(1);transition-property: all;">');
            }else{
                $('#btn-warning-txt').css({
                    transform:'scale(1.1)'
                });
                setTimeout(function(){
                    $('#btn-warning-txt').css({
                        transform:'scale(1)'
                    })
                },400)
            }
        }else{
            $('#btn-warning-txt').remove();
            localStorage.setItem('lastSelectBranch',right)
        }
    }
    // Your code here...
})();