Lastest Doc Redirector (python, django, ruby)

Redirect the version you googled to the latest doc versions.

Pada tanggal 10 Februari 2017. Lihat %(latest_version_link).

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 or Violentmonkey 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         Lastest Doc Redirector (python, django, ruby)
// @name:vi      Chuyển trang tài liệu mới nhất (python, django, ruby)
// @namespace    https://github.com/hotmit/latest-doc-redirector-userscript
// @version      1.0.0
// @description  Redirect the version you googled to the latest doc versions.
// @description:vi  Chuyển những trang bạn tìm được qua trang tài liệu với phiên bản mới nhất (python, django, ruby)
// @author       Du Dang
// @include https://docs.djangoproject.com/*
// @include https://docs.python.org/2/*
// @include https://ruby-doc.org/core-*
// @grant GM_getValue
// @grant GM_setValue
// @license      MIT
// ==/UserScript==
(function() {
    'use strict';

    // Change django version number
    var DJANGO_TARGET_VERSION = '1.11';
    var RUBY_TARGET_VERSION = '2.4.0';
    var PYTHON_TARGET_VERSION = '3';
	
    var Str = {};

    $(function(){
		var href = window.location.href;

		function forward(url){
			var lastFwd = GM_getValue('LastUrlFwd', '');
			// do this to allow browser to go back to old version 
			// 		without loop redirect
			if (lastFwd != url){
				GM_setValue('LastUrlFwd', url);
				window.location.href = url;
			}
		}

		if (Str.contains(href, 'docs.djangoproject.com') 
			&& !Str.contains(href, '/en/' + DJANGO_TARGET_VERSION + '/'))
		{
			// https://docs.djangoproject.com/en/1.5/topics/db/optimization/
			// INTO https://docs.djangoproject.com/en/1.7/topics/db/optimization/
			href = href.replace(/docs.djangoproject.com\/(\w{2})\/(\d\.\d|dev)/gi, 
					'docs.djangoproject.com/en/' + DJANGO_TARGET_VERSION);
			forward(href);
		}

		else if (Str.contains(href, 'docs.python.org') 
			&& !Str.contains(href, '/' + PYTHON_TARGET_VERSION + '/'))
		{
			// https://docs.python.org/2/library/datetime.html
			// INTO https://docs.python.org/3/library/datetime.html
			href = href.replace(/docs.python.org\/2\/library/gi, 
					'docs.python.org/' + PYTHON_TARGET_VERSION + '/library');
			forward(href);
		}

		else if (Str.contains(href, 'ruby-doc.org/core-') 
			&& !Str.contains(href, '/core-' + RUBY_TARGET_VERSION + '/'))
		{
			// https://ruby-doc.org/core-2.2.0/String.html
			// INTO https://ruby-doc.org/core-2.3.1/String.html
			href = href.replace(/core-[^\/]+/gi, 'core-' + RUBY_TARGET_VERSION);
			forward(href);
		}
		
    }); //end jqReady

    // region [ Str Lib ]
	Str.contains = function(s, needle, caseSensitive) {        
        if (caseSensitive){
            return s.indexOf(needle) > -1;
        }
        return s.toLowerCase().indexOf(needle.toLowerCase()) > -1;
    };
    // endregion

})();