fr4

Open a GitHub releases page from a repo

You will need to install an extension such as Tampermonkey, Greasemonkey or Violentmonkey to install this script.

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

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

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

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

You will need to install a user script manager extension to install this script.

(I already have a user script manager, let me install it!)

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install an extension such as Stylus to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

You will need to install a user style manager extension to install this style.

(I already have a user style manager, let me install it!)

// ==UserScript==
// @name        fr4
// @namespace   Violentmonkey Scripts
// @match       *://github.com/*
// @grant       GM_registerMenuCommand
// @grant       GM_notification
// @grant       GM_xmlhttpRequest
// @grant       GM_openInTab
// @grant       unsafeWindow
// @version     1.0
// @license MIT
// @author      -
// @description Open a GitHub releases page from a repo
// ==/UserScript==

const get_repo = /(https?:\/\/[^.]+\.[^.\/]+\/[^\/]+\/[^\/]+)/i;
const get_repo_handle = /https?:\/\/[^.]+\.[^.\/]+\/([^\/]+\/[^\/]+)/i;

function give_up() {
    GM_notification({ title: "Error", text: "I can't find anything. Maybe try compiling it yourself?" });
}

function try_packages() {
    give_up();
}

GM_registerMenuCommand('Find latest release files', () => {
    // Get the root repository url, if possible
    let match_result = get_repo.exec(window.location.href);
    if (match_result != null) {
        let repo_url = match_result[0];
        if (!repo_url.endsWith("/")) {
            repo_url += "/";
        }
        // Try latest release
        GM_xmlhttpRequest({
            url: repo_url + "releases/latest",
            onload: () => {
                GM_openInTab(repo_url + "releases/latest");
            },
            onerror: () => {
                // Try tags
                let tag_api_url = "https://api.github.com/repos/" + get_repo_handle.exec(repo_url)[0] + "/tags";

                GM_xmlhttpRequest({
                    url: tag_api_url,
                    onload: (r) => {
                        let doc = JSON.parse(r.response);
                        if (Array.isArray(doc)) {
                            let tag_url = repo_url + "releases/tag/" + doc[0].name;
                            GM_xmlhttpRequest({
                                url: tag_url,
                                onload: () => {
                                    GM_openInTab(tag_url);
                                },
                                onerror: () => {
                                    try_packages();
                                }
                            });
                        } else {
                            try_packages();
                        }
                    },
                    onerror: () => {
                        try_packages();
                    }
                });
            }
        });
    } else {
        GM_notification({ title: "Error", text: "You must be on the web page of a GitHub repository" });
    }
});