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#just updated to 5.2.2
theshiningdiamond · 7 months
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(inhales) im going to beat krita with a stick
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tapehunter267 · 3 years
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Tenorshare Android Data Recovery Full 5.2.7.1
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mylighthost · 5 years
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WordPress 5.2.3 - Security & Maintenance version is now available!! Let’s Update!
WordPress 5.2.3 is available for the public to test. This latest update has been rolled out just a few days earlier as security & maintenance release. The release features 29 fixes and enhancements. Along with these, it adds a number of security fixes. We highly recommend having this update applied to your WordPress site without any delay and major release will appear soon. 
Version 5.2.3 released on September 5, 2019, fixes all the bugs that affect WordPress versions 5.2.2 and earlier. With the release, your WordPress issues will easily be fixed up, if any wrong goes there. So, you will want to upgrade to the most secure point version that your sites are currently utilizing.
Let’s see what changes & security updates the release has for you:
a cross-site scripting (XSS) vulnerability found in post previews by contributors. 
a cross-site scripting vulnerability in stored comments. 
validation and sanitization of a URL could lead to an open redirect. 
Reflected cross-site scripting during media uploads.
cross-site scripting (XSS) in shortcode previews.
Reflected cross-site scripting could be found in the dashboard.
URL sanitization that can lead to cross-site scripting (XSS) attacks.
In addition to the above changes, it is also updating jQuery on older versions of WordPress. This change was added in 5.2.1 and is now being brought to older versions. 
WordPress 5.2.3 is a short-cycle maintenance release. The next major release will be version 5.3 and appeared soon. 
To Sum Up
You can download WordPress 5.2.2. Alternatively, you can visit the dashboard →Updates and then click Update Now. This way, your website background will automatically be updated without the active interference of you or the developers.
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shashiemrf · 3 years
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Robotics Market 2024: R&D Efforts for Improved Performance and Eco-Friendly Additives to Favor Growth Unveils MRF Report
Overview:
The Robotics Market will witness a healthy growth from 2018 to 2024, a research report suggests. Growing at a CAGR of 28.51%, the market is projected to reach US$181028.6 million by 2024. Advantages such as cost reduction and increased production are expected to support the market growth along with the presence of untapped market opportunities. As predicted by analysts, high initial cost and maintenance will negatively affect the market’s performance from 2018 to 2024. During the forecast period, the market will be supported by the growing need for automation in industries and growth in industrial robotics. High cost involved in maintenance on the other hand will challenge mechanical robots-based organizations functioning in the global robotics market.
Analysts have split the market into type, mobility, and end-user segments based on products and services. Mechanical robots-based companies have been profiled. Expensive deployment is set to affect the global market during the forecast period 2018 to 2024. The report also provides the market’s performance forecasts till 2024. Analysts have studied the strategy of mechanical robots-based organizations to help new entrants and established businesses. The mechanical robot’s sector itself is supported by the growing demand for automation in all sectors as well as international players expanding their product ranges. During the forecast period 2018 to 2024, the Robotics Market is set to witness a health growth across type, mobility, and end-user segments as well as regional markets.
Market Segmentation:
The mechanical robot’s sector has seen growth across type, mobility, and end-user segments owing to the increasing need for custom solutions and the increased need for automation in non-conventional areas. To study the market, analysts have further segmented type, mobility, and end-user into mobility on the basis of articulated, Cartesian, cylindrical, parallel, and SCARA. The market is further segmented into type which is split into mobile robotics and fixed robotics. Additionally, the robotics market on the basis of end-user is segmented into medical, entertainment, field, logistics, defense, public safety, manufacturing, and others.
The segmental analysis presented in the report provides mechanical robots-based organizations insights into key growth factors such as advances in technology as well as challenges such as increased competition the market will face from 2018 to 2024. The structure and operational capabilities and the availability of reliable and energy efficient robots are some of the key factors having an influence on mechanical robots-based companies, suggest analysts as per the Robotics Market Report. But the report also identifies the need for highly skilled manpower and high investment needs as major threats companies in mechanical robots will face till 2024.
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Regional Overview:
Mechanical robots-based companies in the robotics market are functioning across North America, Europe, Asia Pacific, the Middle East, and Africa including the rest of the world. Increasing adoption by small and medium-sized enterprises will be a key growth driver for regional markets. However, complex deployment will turn out to be a threat. For the forecast period 2018 to 2024 each of these regional markets are studied in the report. Starting from North America, the regional market and mechanical robots-based companies are spread across the United States, Canada, and Mexico. Difficulties in updation, upgradation, and maintenance will turn out to be a major challenge from 2018 to 2024.
Parts of the European market covered in the report are regional markets spread across the United Kingdom, France, Italy, and Germany. The market in the region will be benefitted by industries across the globe adopting energy-efficient robots as well as shifting trends in the consumer market, suggests the report. Similarly, the mechanical robot’s sector’s segmental analysis for the Asia Pacific region covers India, Japan, China, and others. For the rest of the world, the research report for the robotics market covers the Middle East and Africa. Forecast based on the report’s findings are presented for the forecast period till 2024.
Competitive Landscape:
The Global Robotics Market Research Report brings a comprehensive study of type, mobility, and end-user market segments, regional analysis, and mechanical robots-based company details of key players. As the forecast period 2018 to 2024 will bring new opportunities for the market owing to the rising developments in industrialization and favorable infrastructure, the market is set to grow at a compound annual growth rate of 28.51% and is predicted to reach a value of US$181028.6 million by 2024. With SWOT analysis of mechanical robots-based companies and Porter’s Five Force model analysis-based findings and understanding challenges such as concerns regarding reliability and high costs, companies in the mechanical robots sector can change the way business is done.
Industry News:
Ocado, a British online grocery store, is speeding up its automation activities by acquiring two robotics firms. Ocado has agreed to purchase Kindred Systems for $262 million cash consideration including Haddington Dynamics for $25 million in cash and stock, according to the firms. With AutoStore, Ocado is involved in a patent dispute over robotically powered warehouse technology. Ocado, a customer since 2012, is said to be using a storage device focused on AutoStore's setups, according to the robotics firm. Ocado has used the autonomous technologies to spur collaboration agreements with retailers all over the world, despite having just 1.7 percent of the British retail market.
Table of Content:
4 MARKET DYNAMICS
4.1 DRIVER, RESTRAINT, AND OPPORTUNITY OVERVIEW 28
4.2 DRIVERS 29
4.2.1 GROWTH IN INDUSTRIAL ROBOTICS 29
4.2.2 DEVELOPING ARTIFICIAL INTELLIGENCE TECHNOLOGY 29
4.2.3 DRIVER IMPACT ANALYSIS 29
4.3 RESTRAINT 30
4.3.1 HIGH INITIAL COST AND TECHNICAL COMPLEXITY 30
4.3.2 RESTRAINT IMPACT ANALYSIS 30
4.4 OPPORTUNITY 31
4.4.1 RISING DEMAND FOR ENTERTAINMENT ROBOTS IN RETAIL FOR CUSTOMER ENGAGEMENT 31
5 MARKET FACTOR ANALYSIS
5.1 VALUE CHAIN ANALYSIS 32
5.1.1 HARDWARE/COMPONENT MANUFACTURERS 33
5.1.2 SOFTWARE DEVELOPERS 33
5.1.3 SYSTEM INTEGRATORS 33
5.1.4 DISTRIBUTION CHANNEL 33
5.1.5 END USERS 33
5.2 PORTERS FIVE FORCES 34
5.2.1 THREAT OF NEW ENTRANTS 34
5.2.2 BARGAINING POWER OF SUPPLIERS 35
5.2.3 THREAT OF SUBSTITUTE 35
5.2.4 BARGAINING POWER OF BUYERS 35
5.2.5 RIVALRY 35
Get Complete Report @ https://www.marketresearchfuture.com/reports/robotics-market-4732
About Us
Market Research Future (MRFR) is an esteemed company with a reputation of serving clients across domains of information technology (IT), healthcare, and chemicals. Our analysts undertake painstaking primary and secondary research to provide a seamless report with a 360 degree perspective. Data is compared against reputed organizations, trustworthy databases, and international surveys for producing impeccable reports backed with graphical and statistical information.
We at MRFR provide syndicated and customized reports to clients as per their liking. Our consulting services are aimed at eliminating business risks and driving the bottomline margins of our clients. The hands-on experience of analysts and capability of performing astute research through interviews, surveys, and polls are a statement of our prowess. We constantly monitor the market for any fluctuations and update our reports on a regular basis.
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akashs123 · 4 years
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Racing Games Market 2020: Opportunities, Revenue Analysis and - Forecasts from 2020 to 2025
Market Research Future published a research report on “Racing Games Market Research Report - Global Forecast till 2025” – Market Analysis, Scope, Stake, Progress, Trends and Forecast to 2025.
Market overview
The global racing video game is growing with popularity through the advent of high-end technicalities. With greater popularity and demand for the game, the international racing game market is speculated to witness a massive growth at a whopping CAGR of 11.2%. This growth rate is expected to happen in between the forecasted of 2019 and 2025. The market is primarily fuelled by the growing demand for simulators with a consistently growing number of gamers.  The advent of upgraded versions of the game is also one of the prime reasons behind the growth rate.
Get More Details of Report @ https://bulletinline.com/2020/07/17/racing-games-market-2020-development-strategy-key-vendors-analysis-emerging-opportunities-and-forecast-2025/
Opportunities for the vendors have significantly grown in modern-day market enthusiastic about racing games. Not just in professional, the growth rate is expected to remain steady for the casual game segment as well. The scenario is going to be even more enchanting with the advent of high-end devices, ranging from smartphones to the tablets. Interestingly, the number of PC gamers is still quite intact despite the availability of so many options. All these aspects, in combination, have ensured the steady growth of the global racing game market.  
A number of gamers based on the smartphone platform has grown hugely with the availability of more number of free games. In fact, the devices are getting quite cost-effective as well. Developers are very much enriched these days with high-end tools to develop products of optimal quality. Moreover, gaming fans see no barrier in terms of age groups. Starting from teen, youth, to the elderly generation, everyone is equally enthusiastic about gaming these days, with it becoming the prime way of entertaining. Racing Games Market is speculated to reach 16836.7 Million by 2025.
Key Players
The Prominent Players operating in the Racing Games Market are Guillemot Corporation S.A (France), Logitech (Switzerland), Raceroom EntertainmenT AG (Switzerland), Nintendo (Japan), Microsoft Corporation (US), Electronic Arts Inc. (US), The Codemasters Software Company Limited (UK), Sparco SPA (Italy), SIMTECHPRO (Spain), Openwheeler (UK), Inracing (India), Villers Enterprises LTD (US), CXC Simulations (US), Sony Corporation (Japan), Next Level Racing (Australia) and PlaySeat (Netherlands).
Segmental Analysis
Global Racing Games Market has been segmented based on Type, Application, and Region
Based on the Type, the racing games market has been segmented into client type and webgame type. The client type segment accounted for a larger market share in 2018 and is expected to continue leading the market throughout the forecast period. The client type segment consists of downloadable and CD-games. These can be played on PCs, mobile, consoles, as well as simulators connected to a PC or console. The majority of the racing games players prefer client type games. The client type segment accounted for the larger market share of 96.9% in 2018, and it is expected to register the higher CAGR of 11.3% during the forecast period
Based on Application, the market has been segmented into mobile, PC, console, and racing simulators. Console sub-segment is further bifurcated into XBOX, PlayStation, and others. The games which are downloaded or purchased from physical stores and played on personal computers have been considered in the PC segment.  The games which are downloaded in the form of mobile applications from the App Store or Play Store on a smartphone are considered in the mobile segment. Consoles are used by gamers who prefer fast-paced racing games and want to experience realistic handling and controls. Racing simulators are used for entertainment as well as for training drivers during educational institutions and private businesses. The mobile segment accounted for the largest market share in 2018, and it is expected to register a CAGR of 11.4% during the forecast period. The PC segment was the second-largest market in 2018, and it is projected to exhibit a CAGR of 6.5%.
Detailed Regional Analysis
The regional analysis for the global racing games has been conducted for North America, Europe, Asia Pacific (APAC), and the Middle East & Africa, and South America.
The market in Asia-Pacific accounted for the largest market share in 2018, and it is expected to dominate the market during the forecast period. In Asia-Pacific, China is the largest gaming market.
North America is expected to be one of the largest markets for racing games during the forecast period. The region is one of the largest markets for the gaming industry and also has the presence of a large number of major players.
Get Complete Report @ https://www.marketresearchfuture.com/reports/racing-games-market-9560
TABLE OF CONTENT
1 Executive Summary
1.1 Market Attractiveness Analysis 12
1.1.1 Global Racing Games Market, By Region 13
2 Market Introduction
2.1 Definition 14
2.2 Scope Of The Study 14
2.3 Research Objective 14
2.4 Market Structure 15
3 Research Methodology
4 Market Insights
5 Market Dynamics
5.1 Introduction 25
5.2 Drivers 26
5.2.1 Emergence Of Next-Generation Gaming 26
5.2.2 Rise In Demand For Driving Simulators 26
5.2.3 Driver Impact Analysis 27
5.3 Restraint 27
5.3.1 High Cost 27
Continued…
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About Us:
At Market Research Future (MRFR), we enable our customers to unravel the complexity of various industries through our Cooked Research Report (CRR), Half-Cooked Research Reports (HCRR), Raw Research Reports (3R), Continuous-Feed Research (CFR), and Market Research & Consulting Services.
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Market Research Future
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Magarpatta Road, Hadapsar,
Pune - 411028
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rubydailystream · 5 years
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Build a chat app with Ruby on Rails
Not all web apps need chat, but if you want to communicate with your customers, or you want them to communicate with each other, you’re going to run into this problem quickly. CometChat Pro is a fantastic alternative to rolling your own chat service. You’ll see that you can easily insert chat into your application, without it getting in the way of other content you may be delivering.
Prerequisites
This tutorial doesn’t assume much knowledge at all. Ruby on Rails is an incredibly easy framework to get started with. If you’ve worked with other web technologies, you’ll probably find it very clear and very opinionated.
CometChat Pro itself needs to run in Javascript, so you’ll see a marriage between a Ruby-based framework and view manipulation through Javascript. There are many more complicated ways to handle this in Rails. For this tutorial, I kept everything in basic Javascript and the templating engine Rails ships with: erb. Rails enthusiasts will be able to easily translate these foundational tools into their specialized setups.
I assume you are able to run Rails applications – which means you already have Ruby and bundler installed. This application uses Ruby 2.5.3 and Rails 5.2.2 but nothing happening here is special for latest versions – you could plug these tools into any modern version of Rails.
Introduction
One of the hardest parts of building chat is dealing with concurrency – users need to see new messages without refreshing their browsers. CometChat Pro achieves this with very little code, as you will see.
CometChat Pro example running in two windows.
If you’ve ever tried to use Action Cable to achieve similar results, you will be very pleased with how quickly you can copy-paste your way to real-time updates in the browser.
You can jump right into the code on Github, or take this guy for a spin yourself. Let’s get it!
Setting up
Initialization
Grab yourself a terminal and fire up a new Rails app: rails new cometchatpro --skip-active-record -T. We don’t need a database for this, and the -T prevents Rails from creating test files for us. If you’ve already got an application, you can skip this step – it should be easy to pop this code into an existing project.
Environmental variables and CometChat credentails
Next, you’re going to need an API key and an App ID from CometChat Pro. Once you’ve logged in, head to the dashboard, create a new app, then generate an API key. You’ll need fullAccess, not just authOnly. Grab those credentials and add them to your .env file. You’ll need your file to look something like this:
COMETCHAT_APP_ID=23n2f2n3p2y3 COMETCHAT_API_KEY=av22g24ll
Next, add dotenv-rails to your Gemfile and bundle. Now your application can read your environmental variables. These are private credentials for your CometChat Pro account; do not commit this file to your version control!
Chat pages
Next we’ll add some boilerplate Rails views and routing so we can chat as a user with other users. Generate a new controller: rails generate controller Users. This will create a number of files, which we’ll get into shortly. You’ll also need to add a route to your new view in config/routes.rb. Here’s what my routes.rb looks like:
Rails.application.routes.draw do resources :users, only: %i[index show] root 'users#index' end
If you jump into the GitHub code or pop over to the hosted app, you’ll see that I have added user creation. I’ve left it in place because I already built it, but CometChat Pro comes with sample users baked into every account, so you can start testing right away without needing to set up user creation first. I’ve omitted discussion of user creation for this tutorial in the sake of brevity, but you can see the code needed for that in the Github repo.
You’ll also need to create a /views/users/show.html.erb file. We’ll fill it will content in a moment.
CometChat Service
Let’s get into the meat of our application – interacting with the CometChat API. I organized interactions with CometChat Pro into a service. Here’s what it looks like:
class CometChatService include HTTParty BASE_URI = 'https://api.cometchat.com/v1'.freeze def fetch_users response = HTTParty.get("#{BASE_URI}/users", headers: headers) response.dig('data') &.map { |user| {name: user['name'], id: user['uid']} } end private def headers { apikey: ENV['COMETCHAT_API_KEY'], appid: ENV['COMETCHAT_APP_ID'] } end end
CometChat Pro does a lot of things, and as we grow our app, we might want to fill this service with further interactions with their API. Here, all we need to do is fetch a list of users we can chat with. Note that no gem is needed to interact with CCP, you simply send your requests however you like (I used HTTParty) with the proper headers (from our .env file) and CCP sends back the information you requested.
I map the JSON response from CCP into the information my application needs – the user name and the user ID.
Working with the service in the users controller
Now that we have a protocol established for speaking with the CCP API, we can use it in our UsersController. Here’s what mine looks like:
class UsersController < ApplicationController def index @users = CometChatService.new.fetch_users end def show users = CometChatService.new.fetch_users @current_user = users.find { |user| user[:id] == params[:id] } @users = users.reject { |user| user[:id] == @user[:id] } end end
I’ve skipped over the index page for brevity, but it’s just a list of users who we may “chat as”. You can think of it as the most insecure, ridiculous login page imaginable. On both views, we fetch the users registered with our CometChat Pro app. We’ve already mapped the JSON response in the service, so on the index and show pages we loop through users to display them. On the show page, we are chatting “as” a user, so we don’t want him to show up in the list of possible people to chat with (line 9).
List of users in a CometChat Pro app
The user show view
Let’s walk through the sections of our user show page in turn. In a minute, we’ll discuss the Javascript necessary to make them run. I’ve also omitted discussion of styling. You can see full code for styling in the GitHub repo, or of course you could implement your own (surely much-better) styling.
Who is talking?
To make information about our “logged-in” user (the one whose show page we are on) available to the CometChat service, we’ll want to include an invisible div with the user name and id. You can put this anywhere on your page:
The user list
To display the list of users as shown above, here’s the erb code:
&ltul class="list-group list-group-flush"> &lt% @users.each do |user| %> &ltli class="list-group-item user-select bg-light" id="&lt%= user[:id] %>" name='user-select'> &ltdiv class="d-flex w-100 justify-content-between"> &lth5 class="mb-1">&lt%= user[:name] %>&lt/h5> &lt/div> &lt/li> &lt% end %> &lt/ul>
There’s nothing special happening here – the only thing to note is that we are setting the user id as an id on the list-item. We’ll need it later to reference which user we are speaking to. Remember that our @users has come from the controller, where we gathered the list of users from the CometChat service.
Receiving and displaying messages
Next, let’s look at how we will display incoming messages. Our code starts as this:
&ltdiv id="messages" class="messages"> Messages loading... &lt/div>
We need to supply a div for CometChat Pro to load messages into. I’ve called mine messages but you could call yours anything you like.
Sending messages
We’ll use Ruby’s form helpers to create our message form, but we don’t let Ruby handle any of the functionality here:
&lt%= form_for :message, remote: true do |f| %> &ltdiv class="col-xs-9"> Message : &lt%= f.text_area :text, class: "form-control" %>&ltbr/> &lt/div> &ltdiv class="col-xs-3 capitalize"> &lt%= button_tag "Send Message", type: 'button', onclick: "javascript:sendMessage()", class: "btn btn-info btn-block" %> &lt/div> &lt% end %>
When we click the “Send Message” button, we’ll be using Javascript to work our magic. The Rails form will just sit there, happily waiting for more input.
The heart of our application: Javascript methods
The CometChat Pro service runs on Javascript and we’ll be using their clear sample code to make the pieces of our app work.
We’ll need to take the following steps:
1. Initialization – set up a connection to the CometChat service.
2. Log in a current user.
3. Select a user to chat with and fetch message history with that person.
4. Add an event listener to pick up new messages from the other person.
5. Set up an action to send messages.
Initialization
First, we’ll need to get our app talking to the CometChat Pro service and log in. In application.html.erb, add this line between the <head> tags:
&ltscript type="text/javascript" src="https://unpkg.com/@cometchat-pro/chat/CometChat.js">&lt/script>
Add these lines to the bottom of /views/users/show.html.erb:
&lt% javascript_include_tag 'show', cache: 'myfiles' %> &ltscript type="text/javascript"> setUserListeners(); document.addEventListener('turbolinks:load', initializeChat); &lt/script>
We’ll look at the setUserListeners method in a second. Finally, we’re referencing a show.js.erb, which we’ll need to create and add to app/assets/javascripts.
Here’s our first Javascript method:
const initializeChat = () => { CometChat.init('').then( hasInitialized => { loginUser() }, error => { console.log("Initialization failed with error:", error); } )};
Because we loaded the CometChat Pro Javascript in our application.html.erb, we can now use CometChatmethods in our Javascript file. The first one we’ll use is .init, which requires us to send in our APP ID as a credential. We’re calling the loginUser method once our chat is initialized.
User login
After initialization, we need to log in the current user. This application includes no security whatsoever – anyone can chat as anyone else. Obviously you’d want to have something just a tiny bit more customized in a production app. Here’s how we log in our user on CometChat Pro:
const loginUser = () => { const userDiv = document.getElementById('user-id'); if (!userDiv) { return true } const id = userDiv.dataset.id; CometChat.login(id, '').then( User => { const messageDiv = document.getElementById('messages'); messageDiv.innerHTML = `<div class="whisper">Choose a user to start chatting</div>`; }, error => { console.log("Login failed with exception:", {error}); }) }
Remember that weird tag('div') that held our user information from show.html.erb? Here we use it to find out what user needs to log in. If something has gone wrong with that div, we just bail from this operation.
Next, we call our next CometChat method: .login. We take the id we got from the user div, and use our API credentials. If CometChat Pro sends back a User, we update the message div to say “Choose a user to start chatting”.
setUserListeners
Let’s hop back to the show.html.erb page where we called setUserListeners() at the bottom of the view. In order to know who we want to chat with, we’ll need to listen for clicks on the user list. Here’s what that code looks like:
const setUserListeners = () => { const userDivs = document.getElementsByName('user-select'); userDivs.forEach(user => user.addEventListener("click", e => { const id = e.target.id || e.target.offsetParent.id setUser(id); fetchMessages(id); })) }
userDivs is a node list of divs, one for each of the users we can chat with. We loop through them and add event listeners on each. If we click on a user, we want to first call setUser to tell our application who we want to talk to, and then fetchMessages for that user.
setUser and addMessageListener
Here’s where we really get some magic and CometChat Pro takes care of the heavy lifting for us. Once we log our user in and select someone to chat with, we want to see any new messages from that person in real time. With CometChat Pro, we don’t have to worry about keeping any websockets open or dealing with refreshing – the messages just appear as you would expect.
The setUser function is only concerned with making the active user blue in the list, so I’ve skipped it here. But it also calls the addMessageListener class, which is critical for receiving new messages as they come in:
const addMessageListener = id => { CometChat.addMessageListener( 'listener_id', new CometChat.MessageListener({ onTextMessageReceived: textMessage => displayNewMessage(id, textMessage) }) )}
This is taken almost directly from the CometChat Pro documentation. We call the CometChat addMessageListener method, then using incoming messages to update our message div. Fire up two different browsers to see this in action (or just check out the gif above).
displayNewMessage
When that new message comes in, we’ll need to update our view. Here’s the code:
const displayNewMessage = (currentChatterId, msg) => { const userDiv = document.getElementById('user-id'); const id = userDiv.dataset.id; if (![currentChatterId, id].includes(msg.sender.uid)) { return; } const newNode = document.createElement("div") newNode.innerHTML = newMessage(msg, id) const messageDiv = document.getElementById('messages') messageDiv.appendChild(newNode) messageDiv.scrollTop = messageDiv.scrollHeight }
First, if the incoming message isn’t between our logged-in user and the user we’re chatting with, we ignore it. Then, we need to process the new message – we construct a new div with the message, then we append it to the messages div, again scrolling to the bottom so we can see it.
newMessage
Our newMessage method will simply format the message – it’s a new bubble in our chat app. We check if the sender has the same id as the logged-in user so we can apply the self class to the div – making it pink for “self” and blue for everybody else.
const newMessage = (msg, id) => { return ( `&ltdiv class='message ${msg.sender.uid === id && 'self'}'> &ltdiv class='message-text'>${msg.text}&lt/div> &ltdiv class='message-sender'>- ${msg.sender.name}&lt/div> &lt/div>` ) }
fetchMessages
Before we start chatting, we need to see the messages that have come before and anything that was exchanged when we weren’t chatting with that particular user. Our fetchMessages method will grab the messages between our logged-in user and our selected user.
const fetchMessages = id => { if (!id) { return; } const limit = 30; const messagesRequest = new CometChat.MessagesRequestBuilder().setUID(id).setLimit(limit).build(); messagesRequest.fetchPrevious().then( messages => { const messageDiv = document.getElementById('messages'); messageDiv.innerHTML = messages.length > 0 ? messages.map(msg => newMessage(msg, id)).join('') : `&ltdiv class="whisper">Start of message history&lt/div>`; messageDiv.scrollTop = messageDiv.scrollHeight }, error => { console.log("Message fetching failed with error:", error); } ); }
If for some reason we don’t have an id, we’ll return so as not to get errors. First we construct our request, setting the ID of the user we want to talk to, and the limit of messages we want to receive. More complicated applications would want to automatically fetch results from further back in time as the user scrolls.
Once our message requester is set up, we can call fetchPrevious to grab a list of messages. This returns messages, which we can use to populate our messages div. Each message is a JSON object with a sender.uid, sender.name and a text. We map through the messages and return them as HTML objects and replace whatever is inside messages with our new message node list. Remember to .join('') them or you’ll see a bunch of commas between divs. If there were no messages, we want to show the user that this is the “start of message history”.
Last, we want to scroll to the bottom of the messages div to show the user the latest messages.
Sending new messages
We’re logging in, selecting a user to chat with, fetching all the old message history between these two, and receiving any new messages sent to us from that user. Finally, we want to be able to send messages. Here’s how we do it:
const sendMessage = () => { const recipient_id = document.getElementsByClassName('bg-info')[0].id; const message_text = document.getElementsByName('message[text]')[0].value; document.getElementsByName('message[text]')[0].value = '' const messageType = CometChat.MESSAGE_TYPE.TEXT; const receiverType = CometChat.RECEIVER_TYPE.USER; const textMessage = new CometChat.TextMessage(recipient_id, message_text, messageType, receiverType); CometChat.sendMessage(textMessage).then( message => displayNewMessage(recipient_id, message), error => { console.log("Message sending failed with error:", error); } ); }
First, we determine which user we are chatting with, based on the highlighted user in the list. Next, we read the message from the form, and clear the form so it’s ready for the next message.
Our textMessage object will call CCP’s TextMessage method, constructing a message to send based on the logged-in user, receiver id, message text, and the types of message and recipient. Then we just sendMessagewith our textMessage object, wait for a message response, and render the message in the same way we would an incoming message from another user.
And that, my friends, is everything we need to install chat in our Rails app!
Conclusion
If you’ve been following along, you now have a fully-functional one-to-one chat app in your project. You can start exploring the other functionalities available through CometChat Pro, or you can start refactoring with jQuery, Slim, or other tools you may wish to incorporate to pare down the code. Hopefully seeing everything in plain Javascript made it clear what we are accomplishing, even if you want to have more efficient code in your own application.
Best of luck installing chat in your own app and have fun!
Links
Github repository with this code + user creation
Heroku deployment so you can see it running quickly. Try two browsers!
CometChat Pro documentation
HTTParty gem
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takecrack · 6 years
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Rekordbox DJ Pro 5.2.3 Crack
Rekordbox DJ Pro 5.2.3 Crack is a narrow street for music with the best delivery sound quality to you. It understands the essence of the text and sound of DJs and covers in a fast way. The software usually ignores sounds in music creation and will implement RM X effects and play sounds. Therefore, there are few reasons. First of all, it will be the reason for the pioneering adjustment and its best way to cover the sound of rapid delivery. Therefore, it has a good pitch and good software stability.
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Rekordbox DJ Pro 5.2.3 Crack Serial Key
Like most of these types of applications, the Rekordbox Dj Setup serial key portable displays a graphical user interface, which should be intuitive for all types of djs, allowing them to manage their sets quickly and effortlessly. Its main window consists of the classic tracker panel and waveform visualization, hint/loop function, file browsing and link status. In addition, with rekordbox DJ 5.2.2, everything you need is in plain sight, easily accessible, because multiple tracks can be analyzed in seconds, this is a great solution for live performances.
Rekordbox DJ Pro 5.2.3 Crack The Mac Free Full version is an automatic analysis of each track, you add to the library, in addition to BPM, it also shows where you defeated, making it easy for you to sync songs. In addition, it also allows you to adjust the beat mode before execution so that you can accurately place cue points, loops, and effects when needed. With the above considerations and more discoveries, it’s safe to say that if you’re looking for a reliable and intuitive audio library manager, then you can definitely try Rekordbox.
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Rekordbox DJ Pro 5.2.3 Crack With License Key Free Download
This software is used to play and edit many songs in the Pulselocker streaming server. Just like the tracks in a dictionary, people can keep them in the same playlist for good performance. It will manage your music and prepare the set and then perform various controllers and CDJs from the same Rekordbox License Key. And this tool inherits sound processing from top flight CDJ-2000NXS player and DJM-900NXS mixer to give a high quality sound.
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Rekordbox DJ Pro 5.2.3 Crack – Rekordbox dj Crack analyzes your track’s waveform and BPM, sets cue points, hot spots, and loops. It has been made available to Rekordbox users through a new space dedicated to new changes, the new Rekordbox 5.0 version of the forum. The jump to the version number brings a completely new graphical user interface fully updated, with a smoother and more geometric design and a more vivid color contrast, with a gray background to highlight the elements of the interface. This refurbishment has obvious similarities with the Serato DJ interface and may give a great deal of discussion; this fact was added to the two-day two-day interface startup, and combined with Serato, apparently trying to put this software to the user’s Rekordbox Mac ecosystem. Pioneer is obviously fighting.
The pioneer company released some new and updated versions of its own previous products. In the beginning, we must know that this is a brand-new application based on the new audio engine called KORETECH, which provides greater performance, a stable system and a new look and feel interface. In addition, sser’s interface is fully presented in the new style, but it refers to the previous version, so we quickly adapt to all the features. Graphics are more avant-garde or go directly to the SERATO DJ system. This program can be used as free software, but it can only be expired quickly in the trial version. Rekordbox Dj Software Free Download allows multiple tracks for Pioneer and allows full control of all files and the use of turntables. The organization of the playlist section is exactly the same as the previous product. Of course, we must choose classic or smart playlists as before. The new song loads quickly and the analysis takes a short time.
Rekordbox DJ Pro 5.2.3 Crack is a professional software package for dj. This is a set of necessary, advanced tools, and thanks to the users will be able to prepare performance at a very high level. The program provided by the module is responsible for the performance of the things before making it easy to run the sound system after its performance and material handling performance, when we can add comments or other useful information we will use in the future.
Rekordbox DJ Pro 5.2.3 Crack has many functions and its task is to accelerate and promote the musician’s work. The tool can be used to quickly view and edit playlists and analyze the song’s sound to maximize it. Rekordbox DJ can, in turn, execute efficiently, thanks to new algorithms to promote better blending of rhythms and transitions between songs. It can be a great help to give color-coded comments. Colors also mark segments of the displayed spectrum, allowing you to locate yourself more quickly in the current situation and prepare performance segments accordingly.
Rekordbox DJ Pro 5.2.3 Crack License Key with the entire host’s pioneer controller (note: just pioneer), and has a complete list of pioneer websites; we tested it in a WeGo3 and DDJ, because we don’t have a brand new pioneer controller (ie DDJ RX and DDJ RZ) Check here at this stage. You can DJ with it without any hardware in all cases, you like, though, or just have an audio interface; on the Mac, Rekordbox DJ has no problem, admit that we tried 2 sound interfaces, including NI audio two, And Apollo twins.
Key Features of Rekordbox DJ Pro 5.2.3 Crack:
This music tool is the best tool and it is designed by integrating the latest technology to ensure the user’s music management.
And this is one of the biggest highlights of the Rekordbox tool, which manages all the music for you very smoothly.
This tool arranges and syncs all your music on your behalf. It comes with the most advanced music settings such as high beat, bass adjustment and volume settings.
Can crash on some video audio files.
The quickest response gives you natural, reliable control.
It also organizes the minimum lag time.
MIDI learning lets you map functions to buttons on the controller.
Raised browsing is displayed on the screen.
With professional sound quality.
Use the computer’s louder master out and controller microphones.
It is also prepared and played from a single rekordbox library.
Easy to use and simple control.
The preview is not displayed when the video tracklist is displayed after the start.
Fast, reliable, sounds great in any environment.
Good interface and intuitive instrumentation.
Multi-screen browsing of its new version will split the GUI and launch the two screens. One for browsing another for performance features.
The function used is the main PC out you can choose to hear you write through your internal computer speakers.
Use the computer’s louder master out and controller microphones.
Therefore, it is prepared and played from a single Rekordbox DJ library.
Easy to use and simple control.
No preview is displayed when the video tracklist is displayed.
It is reliable in any environment and sounds great.
Good interface and intuitive instrumentation.
What’s New?
The level of hot tips. Sampler, reverse, and sequencer functions.
Therefore, select the sampler that shows the 8 or 16 trigger.
The elapsed tracking time and remaining time will be displayed.
Therefore, hot spots in the previous format or list format are displayed on the screen.
10 touch foreign exchange.
So the newly added beat loop mode.
16 hot signal support or pad foreign exchange.
System Requirements:
Especially for windows, it applies to 8 + 7, 8.1, and 10 plus service packs
For Mac OS X 10.11, 10.10 and 10.9 are welcome to adjust it
There must be i7-i3s with Intel processors and 2 GHz etc.
You should have a 4 GB RAM here
In addition, 1280 * 768 screen resolution
How To Install?
First of all, download free installation, including cracking files
Save to PC, and explore the installation also crackup
The installer window will now require a license key
Just copy it from the crack folder and generate it by double-clicking
Get it and paste it here to enjoy the final version
The post Rekordbox DJ Pro 5.2.3 Crack appeared first on Take Crack.
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ootb-posts · 7 years
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Hi, Just a short post to announce that the "live sandbox" (*) of the Alfresco Content Services REST API Explorer has been upgraded to...
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shashiemrf · 3 years
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Robotics Market Unidentified Segments - The Biggest Opportunity Of 2024
Overview:
The Robotics Market will witness a healthy growth from 2018 to 2024, a research report suggests. Growing at a CAGR of 28.51%, the market is projected to reach US$181028.6 million by 2024. Advantages such as cost reduction and increased production are expected to support the market growth along with the presence of untapped market opportunities. As predicted by analysts, high initial cost and maintenance will negatively affect the market’s performance from 2018 to 2024. During the forecast period, the market will be supported by the growing need for automation in industries and growth in industrial robotics. High cost involved in maintenance on the other hand will challenge mechanical robots-based organizations functioning in the global robotics market.
Analysts have split the market into type, mobility, and end-user segments based on products and services. Mechanical robots-based companies have been profiled. Expensive deployment is set to affect the global market during the forecast period 2018 to 2024. The report also provides the market’s performance forecasts till 2024. Analysts have studied the strategy of mechanical robots-based organizations to help new entrants and established businesses. The mechanical robot’s sector itself is supported by the growing demand for automation in all sectors as well as international players expanding their product ranges. During the forecast period 2018 to 2024, the Robotics Market is set to witness a health growth across type, mobility, and end-user segments as well as regional markets.
Market Segmentation:
The mechanical robot’s sector has seen growth across type, mobility, and end-user segments owing to the increasing need for custom solutions and the increased need for automation in non-conventional areas. To study the market, analysts have further segmented type, mobility, and end-user into mobility on the basis of articulated, Cartesian, cylindrical, parallel, and SCARA. The market is further segmented into type which is split into mobile robotics and fixed robotics. Additionally, the robotics market on the basis of end-user is segmented into medical, entertainment, field, logistics, defense, public safety, manufacturing, and others.
The segmental analysis presented in the report provides mechanical robots-based organizations insights into key growth factors such as advances in technology as well as challenges such as increased competition the market will face from 2018 to 2024. The structure and operational capabilities and the availability of reliable and energy efficient robots are some of the key factors having an influence on mechanical robots-based companies, suggest analysts as per the Robotics Market Report. But the report also identifies the need for highly skilled manpower and high investment needs as major threats companies in mechanical robots will face till 2024.
Get Free Sample Report @ https://www.marketresearchfuture.com/sample_request/4732
Regional Overview:
Mechanical robots-based companies in the robotics market are functioning across North America, Europe, Asia Pacific, the Middle East, and Africa including the rest of the world. Increasing adoption by small and medium-sized enterprises will be a key growth driver for regional markets. However, complex deployment will turn out to be a threat. For the forecast period 2018 to 2024 each of these regional markets are studied in the report. Starting from North America, the regional market and mechanical robots-based companies are spread across the United States, Canada, and Mexico. Difficulties in updation, upgradation, and maintenance will turn out to be a major challenge from 2018 to 2024.
Parts of the European market covered in the report are regional markets spread across the United Kingdom, France, Italy, and Germany. The market in the region will be benefitted by industries across the globe adopting energy-efficient robots as well as shifting trends in the consumer market, suggests the report. Similarly, the mechanical robot’s sector’s segmental analysis for the Asia Pacific region covers India, Japan, China, and others. For the rest of the world, the research report for the robotics market covers the Middle East and Africa. Forecast based on the report’s findings are presented for the forecast period till 2024.
Competitive Landscape:
The Global Robotics Market Research Report brings a comprehensive study of type, mobility, and end-user market segments, regional analysis, and mechanical robots-based company details of key players. As the forecast period 2018 to 2024 will bring new opportunities for the market owing to the rising developments in industrialization and favorable infrastructure, the market is set to grow at a compound annual growth rate of 28.51% and is predicted to reach a value of US$181028.6 million by 2024. With SWOT analysis of mechanical robots-based companies and Porter’s Five Force model analysis-based findings and understanding challenges such as concerns regarding reliability and high costs, companies in the mechanical robots sector can change the way business is done.
Industry News:
Ocado, a British online grocery store, is speeding up its automation activities by acquiring two robotics firms. Ocado has agreed to purchase Kindred Systems for $262 million cash consideration including Haddington Dynamics for $25 million in cash and stock, according to the firms. With AutoStore, Ocado is involved in a patent dispute over robotically powered warehouse technology. Ocado, a customer since 2012, is said to be using a storage device focused on AutoStore's setups, according to the robotics firm. Ocado has used the autonomous technologies to spur collaboration agreements with retailers all over the world, despite having just 1.7 percent of the British retail market.
Table of Content:
3 RESEARCH METHODOLOGY
3.1 RESEARCH PROCESS 22
3.2 PRIMARY RESEARCH 23
3.3 SECONDARY RESEARCH 24
3.4 MARKET SIZE ESTIMATION 25
3.5 FORECAST MODEL 26
3.6 LIST OF ASSUMPTIONS 27
4 MARKET DYNAMICS
4.1 DRIVER, RESTRAINT, AND OPPORTUNITY OVERVIEW 28
4.2 DRIVERS 29
4.2.1 GROWTH IN INDUSTRIAL ROBOTICS 29
4.2.2 DEVELOPING ARTIFICIAL INTELLIGENCE TECHNOLOGY 29
4.2.3 DRIVER IMPACT ANALYSIS 29
4.3 RESTRAINT 30
4.3.1 HIGH INITIAL COST AND TECHNICAL COMPLEXITY 30
4.3.2 RESTRAINT IMPACT ANALYSIS 30
4.4 OPPORTUNITY 31
4.4.1 RISING DEMAND FOR ENTERTAINMENT ROBOTS IN RETAIL FOR CUSTOMER ENGAGEMENT 31
5 MARKET FACTOR ANALYSIS
5.1 VALUE CHAIN ANALYSIS 32
5.1.1 HARDWARE/COMPONENT MANUFACTURERS 33
5.1.2 SOFTWARE DEVELOPERS 33
5.1.3 SYSTEM INTEGRATORS 33
5.1.4 DISTRIBUTION CHANNEL 33
5.1.5 END USERS 33
5.2 PORTERS FIVE FORCES 34
5.2.1 THREAT OF NEW ENTRANTS 34
5.2.2 BARGAINING POWER OF SUPPLIERS 35
5.2.3 THREAT OF SUBSTITUTE 35
5.2.4 BARGAINING POWER OF BUYERS 35
5.2.5 RIVALRY 35
Get Complete Report @ https://www.marketresearchfuture.com/reports/robotics-market-4732
About Us
Market Research Future (MRFR) is an esteemed company with a reputation of serving clients across domains of information technology (IT), healthcare, and chemicals. Our analysts undertake painstaking primary and secondary research to provide a seamless report with a 360 degree perspective. Data is compared against reputed organizations, trustworthy databases, and international surveys for producing impeccable reports backed with graphical and statistical information.
We at MRFR provide syndicated and customized reports to clients as per their liking. Our consulting services are aimed at eliminating business risks and driving the bottomline margins of our clients. The hands-on experience of analysts and capability of performing astute research through interviews, surveys, and polls are a statement of our prowess. We constantly monitor the market for any fluctuations and update our reports on a regular basis.
Media Contact:
Market Research Future
Office No. 528, Amanora Chambers
Magarpatta Road, Hadapsar,
Pune - 411028
Maharashtra, India
+1 646 845 9312
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jmtapio · 8 years
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The Python API for the Debian package manager APT is useful for writing practical system maintenance scripts, which are going beyond shell scripting capabilities. There are Python2 and Python3 libraries for that available as packages, as well as a documentation in the package python-apt-doc. If that’s also installed, the documentation then could be found in /usr/share/doc/python-apt-doc/html/index.html, and there are also a couple of example scripts shipped into /usr/share/doc/python-apt-doc/examples. The libraries mainly consists of Python bindings for the libapt-inst and libapt-pkg C++ core libraries of the APT package manager, which makes it processing very fast. Debugging symbols are also available as packages (python{,3}-apt-dbg). The module apt_inst provides features like reading from binary packages, while apt_pkg resembles the functions of the package manager. There is also the apt abstraction layer which provides more convenient access to the library, like apt.cache.Cache() could be used to behave like apt-get:
from apt.cache import Cache mycache = Cache() mycache.update() # apt-get update mycache.open() # re-open mycache.upgrade(dist_upgrade=True) # apt-get dist-upgrade mycache.commit() # apply
boil out selections
As widely known, there is a feature of dpkg which helps to move a package inventory from one installation to another by just using a text file with a list of installed packages. A selections list containing all installed package could be easily generated with $ dpkg --get-selections > selections.txt. The resulting file then looks something similar like this:
$ cat selections.txt 0ad install 0ad-data install 0ad-data-common install a2ps install abi-compliance-checker install abi-dumper install abigail-tools install accountsservice install acl install acpi install
The counterpart for this operation (--set-selections) could be used to reinstall (add) the complete package inventory on another installation resp. computer (that needs superuser rights), like that’s explained in the manpage dpkg(1). No problem so far.
The problem is, if that list contains a package which couldn’t be found in any of the package inventories which are set up in /etc/apt/sources.list(.d/) on the target system, dpkg stops the whole process:
# dpkg --set-selections < selections.txt dpkg: warning: package not in database at line 524: google-chrome-beta dpkg: warning: found unknown packages; this might mean the available database is outdated, and needs to be updated through a frontend method
Thus, manually downloaded and installed “wild” packages from unofficial package sources are problematic for this approach, because the package installer simply doesn’t know where to get them.
Luckily, dpkg puts out the relevant package names, but instead of having them removed manually with an editor this little Python script for python3-apt automatically deletes any of these packages from a selections file:
#!/usr/bin/env python3 import sys import apt_pkg apt_pkg.init() cache = apt_pkg.Cache() infile = open(sys.argv[1]) outfile_name = sys.argv[1] + '.boiled' outfile = open(outfile_name, "w") for line in infile: package = line.split()[0] if package in cache: outfile.write(line) infile.close() outfile.close() sys.exit(0)
The script takes one argument which is the name of the selections file which has been generated by dpkg. The low level module apt_pkg first has to been initialized with apt_pkg.init(). Then apt_pkg.Cache() can be used to instantiate a cache object (here: cache). That object is iterable, thus it’s easy to not perform something if a package from that list couldn’t be found in the database, like not copying the corresponding line into the outfile (.boiled), while the others are copied.
The result then looks something like this:
$ diff selections.txt selections.txt.boiled 3780d3779 < python-timemachine install 4438d4436 < wlan-supercracker install
That script might be useful also for moving from one distribution resp. derivative to another (like from Ubuntu to Debian). For productive use, open() should be of course secured against FileNotFound and IOError-s to prevent program crashs on such events.
purge rc-s
Like also widely known, deinstalled packages leave stuff like configuration files, maintainer scripts and logs on the computer, to save that if the package gets reinstalled at some point in the future. That happens if dpkg has been used with -r/--remove instead of -P/--purge, which also removes these files which are left otherwise.
These packages are then marked as rc in the package archive, like:
$ dpkg -l | grep ^rc rc firebird2.5-common 2.5.6.27020.ds4-3 amd64 common files for firebird 2.5 servers and clients rc firebird2.5-server-common 2.5.6.27020.ds4-3 amd64 common files for firebird 2.5 servers rc firebird3.0-common 3.0.1.32609.ds4-8 all common files for firebird 3.0 server, client and utilities rc imagemagick-common 8:6.9.6.2+dfsg-2 all image manipulation programs -- infrastructure dummy package
It could be purged over them afterwards to completely remove them from the system. There are several shell coding snippets to be found on the net for completing this job automatically, like this one here:
dpkg -l | grep "^rc" | sed ­e "s/^rc //" ­e "s/ .*$//" | \ xargs dpkg ­­purge
The first thing which is needed to handle this by a Python script is the information that in apt_pkg, the package state rc per default is represented by the code 5:
>>> testpackage = cache['firebird2.5-common'] >>> testpackage.current_state 5
For changing things in the database apt_pkg.DepCache() could be docked onto an cache object to manipulate the installation state of a package within, like marking it to be removed resp. purged:
>>> mydepcache = apt_pkg.DepCache(mycache) >>> mydepcache.mark_delete(testpackage, True) # True = purge >>> mydepcache.marked_delete(testpackage) True
That’s basically all which is needed for an old package purging maintenance script in Python 3, another iterator as package filter and there you go:
#!/usr/bin/env python3 import sys import apt_pkg from apt.progress.text import AcquireProgress from apt.progress.base import InstallProgress acquire = AcquireProgress() install = InstallProgress() apt_pkg.init() cache = apt_pkg.Cache() depcache = apt_pkg.DepCache(cache) for paket in cache.packages: if paket.current_state == 5: depcache.mark_delete(paket, True) depcache.commit(acquire, install)
The method DepCache.commit() applies the changes to the package archive at the end, and it needs apt_progress to perform.
Of course this script needs superuser rights to run. It then returns something like this:
$ sudo ./rc-purge Reading package lists... Done Building dependency tree Reading state information... Done Fetched 0 B in 0s (0 B/s) custom fork found got pid: 17984 got pid: 0 got fd: 4 (Reading database ... 701434 files and directories currently installed.) Purging configuration files for libmimic0:amd64 (1.0.4-2.3) ... Purging configuration files for libadns1 (1.5.0~rc1-1) ... Purging configuration files for libreoffice-sdbc-firebird (1:5.2.2~rc2-2) ... Purging configuration files for vlc-nox (2.2.4-7) ... Purging configuration files for librlog5v5 (1.4-4) ... Purging configuration files for firebird3.0-common (3.0.1.32609.ds4-8) ... Purging configuration files for imagemagick-common (8:6.9.6.2+dfsg-2) ... Purging configuration files for firebird2.5-server-common (2.5.6.27020.ds4-3)
It’s not yet production ready (like there’s an infinite loop if dpkg returns error code 1 like from “can’t remove non empty folder”). But generally, ATTENTION: be very careful with typos and other mistakes if you want to use that code snippet, a false script performing changes on the package database might destroy the integrity of your system, and you don’t want that to happen.
detect “wild” packages
Like said above, installed Debian packages might be called “wild” if they have been downloaded from somewhere on the net and installed manually, like that is done from time to time on many systems. If you want to remove that whole class of packages again for any reason, the question would be how to detect them. A characteristic element is that there is no source connected to such a package, and that could be detected by Python scripting using again the bindings for the APT libraries.
The package object doesn’t have an associated method to query its source, because the origin is always connected to a specific package version, like some specific version might have come from security updates for example. The current version of a package can be queried with DepCache.get_candidate_ver() which returns a complex apt_pkg.Version object:
>>> import apt_pkg >>> apt_pkg.init() >>> mycache = apt_pkg.Cache() Reading package lists... Done Building dependency tree Reading state information... Done >>> mydepcache = apt_pkg.DepCache(mycache) >>> testpackage = mydepcache.get_candidate_ver(mycache['nano']) >>> testpackage <apt_pkg.Version object: Pkg:'nano' Ver:'2.7.4-1' Section:'editors' Arch:'amd64' Size:484790 ISize:2092032 Hash:33578 ID:31706 Priority:2>
For version objects there is the method file_list available, which returns a list containing PackageFile() objects:
>>> testpackage.file_list [(<apt_pkg.PackageFile object: filename:'/var/lib/apt/lists/httpredir.debian.org_debian_dists_testing_main_binary-amd64_Packages' a=testing,c=main,v=,o=Debian,l=Debian arch='amd64' site='httpredir.debian.org' IndexType='Debian Package Index' Size=38943764 ID:0>, 669901L)]
These file objects contain the index files which are associated with a specific package source (a downloaded package index), which could be read out easily (using a for-loop because there could be multiple file objects):
>>> for files in testpackage.file_list: ... print(files[0].filename) /var/lib/apt/lists/httpredir.debian.org_debian_dists_testing_main_binary-amd64_Packages
That explains itself: the nano binary package on this amd64 computer comes from httpredir.debian.org/debian testing main. If a package is “wild” that means it was installed manually, so there is no associated index file to be found, but only /var/lib/dpkg/status (libcudnn5 is not in the official package archives but distributed by Nvidia as a .deb package):
>>> testpackage2 = mydepcache.get_candidate_ver(mycache['libcudnn5']) >>> for files in testpackage2.file_list: ... print(files[0].filename) /var/lib/dpkg/status
The simple trick now is to find all packages which have only /var/lib/dpkg/status as associated system file (that doesn’t refer to what packages contain), an not an index file representing a package source. There’s a little pitfall: that’s truth also for virtual packages. But virtual packages commonly don’t have an associated version (python-apt docs: “to check whether a package is virtual; that is, it has no versions and is provided at least once”), and that can be queried by Package.has_versions. A filter to find out any packages that aren’t virtual packages, are solely associated to one system file, and that file is /var/lib/dpkg/status, then goes like this:
for package in cache.packages: if package.has_versions: version = mydepcache.get_candidate_ver(package) if len(version.file_list) == 1: if 'dpkg/status' in version.file_list[0][0].filename: print(package.name)
On my Debian testing system this puts out a quite interesting list. It lists all the wild packages like libcudnn5, but also packages which are recently not in testing because they have been temporarily removed by AUTORM due to release critical bugs. Then there’s all the obsolete stuff which have been installed from the package archives once and then being forgotten like old kernel header packages (“obsolete packages” in dselect). So this snippet brings up other stuff, too. Thus, this might be more experimental stuff so far, though.
via Planet Debian
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