Github manual merge

Fixes the manual merge instructions on github

目前為 2024-02-19 提交的版本,檢視 最新版本

您需要先安裝使用者腳本管理器擴展,如 TampermonkeyGreasemonkeyViolentmonkey 之後才能安裝該腳本。

You will need to install an extension such as Tampermonkey to install this script.

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyViolentmonkey 後才能安裝該腳本。

您需要先安裝使用者腳本管理器擴充功能,如 TampermonkeyUserscripts 後才能安裝該腳本。

你需要先安裝一款使用者腳本管理器擴展,比如 Tampermonkey,才能安裝此腳本

您需要先安裝使用者腳本管理器擴充功能後才能安裝該腳本。

(我已經安裝了使用者腳本管理器,讓我安裝!)

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展,比如 Stylus,才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

你需要先安裝一款使用者樣式管理器擴展後才能安裝此樣式

(我已經安裝了使用者樣式管理器,讓我安裝!)

// ==UserScript==
// @name         Github manual merge
// @namespace    https://github.com/lordwelch/
// @version      2.0
// @description  Fixes the manual merge instructions on github
// @license      MIT
// @author       lordwelch
// @match        https://github.com/*
// @icon         https://www.google.com/s2/favicons?sz=64&domain=github.com
// @grant        none
// @run-at       document-idle
// ==/UserScript==

(async function() {
    'use strict';
    console.log("script started");
    var pushState = history.pushState;
    var replaceState = history.replaceState;

    history.pushState = function() {
        pushState.apply(history, arguments);
        window.dispatchEvent(new Event('pushstate'));
        window.dispatchEvent(new Event('locationchange'));
    };

    history.replaceState = function() {
        replaceState.apply(history, arguments);
        window.dispatchEvent(new Event('replacestate'));
        window.dispatchEvent(new Event('locationchange'));
    };

    window.addEventListener('popstate', function() {
        window.dispatchEvent(new Event('locationchange'));
    });
    window.addEventListener("load", function() {
        window.dispatchEvent(new Event('locationchange'));
    });
    function breakCheck() {
        if (document.getElementById('gh-manual-pull-fix') != null) {
            console.log("fix is already applied");
            return;
        }
        if (document.getElementById('gh-manual-merge-fix') != null) {
            console.log("fix is already applied");
            return;
        }
        var location = document.location.pathname.match(/\/([^/]+)\/([^/]+)\/pull\/(\d+)$/);
        if (location == null) {
            console.log("incorrect page");
            return;
        }
    }

    function trimSuffix(str, suffix) {
        if (str.endsWith(suffix)) {
            return str.substr(0, str.length-suffix.length);
        }
        return str;
    }
    function trimPrefix(str, prefix) {
        if (str.startsWith(prefix)) {
            return str.substr(prefix.length-str.length);
        }
        return str;
    }

    function FixForkInstructions(argument) {
        if (breakCheck()) {
            return;
        }

        var urlObj = document.getElementById("clone-help-git-url");
        var url = trimSuffix(urlObj.value.trim(), ".git");
        var stepInstructions = document.querySelectorAll('p.step');
        var step1 = document.querySelector("#clone-help-step-1");
        var step2 = document.querySelector("#clone-help-step-2");

        var primaryBranch = step1.textContent.trim().split("\n").at(0).split(" ").at(-1);
        var branchName = step1.textContent.trim().split(" ").at(-1);
        var repoOwner = url.split("/").at(-2);

        if (primaryBranch.indexOf("/") >= 0 || branchName.indexOf("/") >= 0 || repoOwner.indexOf("/") >= 0) {
            return
        }

        var pullInstructions = `git stash\ngit checkout ${primaryBranch}\ngit fetch --force ${url} +${branchName}:${repoOwner}/${branchName}\ngit checkout ${repoOwner}/${branchName}`;
        var mergeInstructions = `git checkout ${primaryBranch}\ngit merge ${branchName}`;

        var spPull = document.createElement("span");
        spPull.id = 'gh-manual-pull-fix';
        spPull.textContent = pullInstructions;

        var spMerge = document.createElement("span");
        spMerge.id = 'gh-manual-merge-fix';
        spMerge.textContent = mergeInstructions;
        if (breakCheck()) {
            return;
        }

        var parent = step1.parentNode.parentNode;
        step1.textContent = '';
        step2.textContent = '';
        for (let i = 0; i < stepInstructions.length; i++) {
          stepInstructions[i].textContent = "";
        }

        if (breakCheck()) {
            return;
        }
        step1.appendChild(spPull);

        var str = document.createElement("strong");
        str.textContent = "Pull Instructions:"
        stepInstructions[0].appendChild(str);
        stepInstructions[0].appendChild(document.createTextNode(" Stash your changes. Checkout the primary branch. Force fetch the pr branch. Checkout the pr branch."));

        step2.appendChild(spMerge);

        var str = document.createElement("strong");
        str.textContent = "Merge Instructions:"
        stepInstructions[1].appendChild(str);
        stepInstructions[1].appendChild(document.createTextNode(" Checkout the primary branch. Merge the pr branch."));
    }

    function FixBranchInstructions(argument) {
        if (breakCheck()) {
            return;
        }

        var urlObj = document.getElementById("clone-help-git-url");
        var url = trimSuffix(urlObj.value.trim(), ".git");
        var stepInstructions = document.querySelectorAll('p.step');
        var step1 = document.querySelector("#clone-help-step-1");
        var step2 = document.querySelector("#clone-help-step-2");
        var step3 = document.querySelector("#clone-help-step-3");
        var step4 = document.querySelector("#clone-help-step-4");

        var primaryBranch = step1.textContent.trim().split(" ").at(-1);
        var branchName = step3.textContent.trim().split(" ").at(-1);
        var repoOwner = url.split("/").at(-2);

        if (primaryBranch.indexOf("/") >= 0 || branchName.indexOf("/") >= 0 || repoOwner.indexOf("/") >= 0) {
            return
        }

        var pullInstructions = `git stash\ngit checkout ${primaryBranch}\ngit fetch --force ${url} ${branchName}\ngit checkout ${branchName}`;
        var mergeInstructions = `git checkout ${primaryBranch}\ngit merge ${branchName}`;

        var spPull = document.createElement("span");
        spPull.id = 'gh-manual-pull-fix';
        spPull.textContent = pullInstructions;

        var spMerge = document.createElement("span");
        spMerge.id = 'gh-manual-merge-fix';
        spMerge.textContent = mergeInstructions;
        if (breakCheck()) {
            return;
        }

        var parent = step1.parentNode.parentNode;
        step1.textContent = '';
        step2.textContent = '';
        parent.removeChild(step3.parentNode);
        parent.removeChild(step4.parentNode);
        for (let i = 0; i < stepInstructions.length; i++) {
          stepInstructions[i].textContent = "";
        }

        step1.appendChild(spPull);

        var str = document.createElement("strong");
        str.textContent = "Pull Instructions:"
        stepInstructions[0].appendChild(str);
        stepInstructions[0].appendChild(document.createTextNode(" Stash your changes. Checkout the primary branch. Force fetch the pr branch. Checkout the pr branch."));

        step2.appendChild(spMerge);

        var str = document.createElement("strong");
        str.textContent = "Merge Instructions:"
        stepInstructions[1].appendChild(str);
        stepInstructions[1].appendChild(document.createTextNode(" Checkout the primary branch. Merge the pr branch."));
    }
    async function fixManualMergeInstructions() {
        console.log("script running");
        if (breakCheck()) {
            return;
        }
        var location = document.location.pathname.match(/\/([^/]+)\/([^/]+)\/pull\/(\d+)$/);
        if (location == null) {
            return;
        }
        var upstreamOwner = location[1];
        var upstreamRepo = location[2];
        var upstreamPrNum = location[3];
        var urlObj = document.getElementById("clone-help-git-url");
        while (urlObj == null) {
            await new Promise(r => setTimeout(r, 300));
            console.log("Waiting for pr to load");
            if (breakCheck()) {
                return;
            }
            location = document.location.pathname.match(/\/([^/]+)\/([^/]+)\/pull\/(\d+)$/);
            if (location == null) {
                continue;
            }
            upstreamOwner = location[1];
            upstreamRepo = location[2];
            upstreamPrNum = location[3];
            urlObj = document.getElementById("clone-help-git-url");
        }
        if (breakCheck()) {
            return;
        }
        var prPath = trimSuffix(trimPrefix(urlObj.value, "https://github.com"), ".git");
        var prLocation = prPath.match(/\/([^/]+)\/([^/]+)$/);
        var downstreamOwner = prLocation[1];
        var downstreamRepo = prLocation[2];

        if (downstreamRepo != upstreamRepo || downstreamOwner != upstreamOwner) {
            FixForkInstructions()
        } else {
            FixBranchInstructions()
        }
    }
    window.addEventListener('locationchange', fixManualMergeInstructions);
    fixManualMergeInstructions();
})();