github-update-forked

update forked repository
2019-12-02 يوللانغان نەشرى. ئەڭ يېڭى نەشرىنى كۆرۈش.
سوئال سوراش، ئوبزور يېزىش ياكى قوليازمىنى پاش قىلىش.
Wrap lines
// ==UserScript==
// @author gaojr
// @namespace https://github.com/gaojr/tampermonkey-scripts
// @name:CN-zh_cn GitHub更新fork仓库
// @name github-update-forked
// @version 0.1
// @description update forked repository
// @license MIT
// @match https://github.com/*
// @grant none
// @connect github.com
// @icon https://github.githubassets.com/pinned-octocat.svg
// ==/UserScript==

const wlh = window.location.href;

/**
 * 是否为 forked 仓库
 * @return {boolean} 是否为 forked 仓库
 */
const isForked = function () {
  return !!document.querySelector('.fork-flag');
};

/**
 * 是否落后
 * @return {boolean} 是否落后
 */
const isBehind = function () {
  let content = document.querySelector('.branch-infobar').textContent;
  return content.indexOf('behind') !== -1
};

/**
 * 获取父项目信息
 * @return {} 父项目信息
 */
const getParentInfo = function () {
  if (isForked) {
    let content = document.querySelector('.fork-flag a').textContent;
    return {
      user: content.split('/')[0],
      repository: content.split('/')[1]
    };
  } else {
    return {};
  }
};

/**
 * 根据url获取分支
 * @param {string} url 地址
 * @return {string} 分支名
 */
const getBranch = function (url) {
  let index = url.lastIndexOf('/') + 1;
  return url.substr(index);

};

/**
 * 更新
 * @param {*} ele 元素
 */
const dealUpdateBtnHref = function (ele) {
  let parentInfo = getParentInfo();
  let href = ele.href.replace('pull/new', 'compare');
  let branch = getBranch(href);
  href += '...' + parentInfo.user + ':' + branch;
  ele.href = href;
};

(function () {
  window.onload = function () {
    console.log('github-update-forked start!');
    const isRepository = /https:\/\/github\.com\/[^\/]*\/[^\/]*/;
    if (isRepository.test(wlh) && isForked() && isBehind()) {
      // 生成更新按钮
      let prBtn = document.querySelector('div.branch-infobar .muted-link');
      let updateBtn = prBtn.outerHTML.replace('Pull request', 'update');
      prBtn.outerHTML = updateBtn + prBtn.outerHTML;
      // 绑定点击事件
      dealUpdateBtnHref(document.querySelector('div.branch-infobar .muted-link'));
    }
    console.log('github-update-forked end!');
  }

})();