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Programming Leftovers

Submitted by Roy Schestowitz on Wednesday 13th of April 2022 01:09:05 AM Filed under
Development

  • Implied bounds and perfect derive

    There are two ergonomic features that have been discussed for quite some time in Rust land: perfect derive and expanded implied bounds. Until recently, we were a bit stuck on the best way to implement them. Recently though I’ve been working on a new formulation of the Rust trait checker that gives us a bunch of new capabilities — among them, it resolved a soundness formulation that would have prevented these two features from being combined. I’m not going to describe my fix in detail in this post, though; instead, I want to ask a different question. Now that we can implement these features, should we?

    Both of these features fit nicely into the less rigamarole part of the lang team Rust 2024 roadmap. That is, they allow the compiler to be smarter and require less annotation from you to figure out what code should be legal. Interestingly, as a direct result of that, they both also carry the same downside: semver hazards.

  • CTCFT 2022-04-18 Agenda | Inside Rust Blog

    The next "Cross Team Collaboration Fun Times" (CTCFT) meeting will take place on Monday, 2022-04-18 at 9pm US Eastern Time (click to see in your time zone). You’ll find the full details (along with a calendar event, zoom details, etc) on the CTCFT website.

  • A list of new(ish) command line tools

    Hello! Today I asked on twitter about newer command line tools, like ripgrep and fd and fzf and exa and bat.

    I got a bunch of replies with tools I hadn’t heard of, so I thought I’d make a list here. A lot of people also pointed at the modern-unix list.

  • Get an embedded Rust development environment set up without prompting Using bash
  • Qt 6.3 released

    I’m happy to announce that Qt 6.3 has been released today. As always, the release is packed with many new features as well as a large amount of bug fixes.

  • Protected C++

    Like many other programming languages, C++ also provides us with the feature of data hiding for security purposes. We use access modifiers within a C++ program to protect our data at different security levels. C++ includes the public, private and protected access specifiers to secure its variables and functions. The protected access specifier is a little different from both private and public. This article will focus on the “protected” access modifier in C++ code examples. So, let’s get started. Open the shell application, create a new c++ file and open it in the editor.

  • REST API Authentication Using Laravel Sanctum

    Authentication is a major part of any Laravel project. Many packages exist in Laravel for implementing REST API authentication, such as Passport, Sanctum, JWT, etc. Laravel sanctum is a simple and lightweight Laravel package to implement a REST API authentication system for mobile applications, single-page applications (SPAs), and token-based APIs. It can generate multiple API tokens for the users, and the single-page application can be authenticated using the user’s session. It can be used as an alternative to Laravel Passport API. Laravel sanctum is better than Laravel Passport in many cases. It is simpler than Laravel Passport, and it does not require OAuth2 authentication like Passport authentication. The ways of implementing Laravel Sanctum authentication and checking the REST API by using postman have been shown in this tutorial.

  • Use of isset() Function in PHP

    It is necessary to check any variable is defined or not defined before reading the file’s content because if the variable is undefined, it will generate an error when the value of that variable is tried to read. This problem can be solved by using PHP’s isset() function. It returns true if the variable is defined and false if it is undefined. Different uses of the isset() function have been shown in this tutorial.

  • IAR Systems brings low-code state machine design solution to Linux – EEJournal

»

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today's howtos

  • How to install go1.19beta on Ubuntu 22.04 – NextGenTips

    In this tutorial, we are going to explore how to install go on Ubuntu 22.04 Golang is an open-source programming language that is easy to learn and use. It is built-in concurrency and has a robust standard library. It is reliable, builds fast, and efficient software that scales fast. Its concurrency mechanisms make it easy to write programs that get the most out of multicore and networked machines, while its novel-type systems enable flexible and modular program constructions. Go compiles quickly to machine code and has the convenience of garbage collection and the power of run-time reflection. In this guide, we are going to learn how to install golang 1.19beta on Ubuntu 22.04. Go 1.19beta1 is not yet released. There is so much work in progress with all the documentation.

  • molecule test: failed to connect to bus in systemd container - openQA bites

    Ansible Molecule is a project to help you test your ansible roles. I’m using molecule for automatically testing the ansible roles of geekoops.

  • How To Install MongoDB on AlmaLinux 9 - idroot

    In this tutorial, we will show you how to install MongoDB on AlmaLinux 9. For those of you who didn’t know, MongoDB is a high-performance, highly scalable document-oriented NoSQL database. Unlike in SQL databases where data is stored in rows and columns inside tables, in MongoDB, data is structured in JSON-like format inside records which are referred to as documents. The open-source attribute of MongoDB as a database software makes it an ideal candidate for almost any database-related project. This article assumes you have at least basic knowledge of Linux, know how to use the shell, and most importantly, you host your site on your own VPS. The installation is quite simple and assumes you are running in the root account, if not you may need to add ‘sudo‘ to the commands to get root privileges. I will show you the step-by-step installation of the MongoDB NoSQL database on AlmaLinux 9. You can follow the same instructions for CentOS and Rocky Linux.

  • An introduction (and how-to) to Plugin Loader for the Steam Deck. - Invidious
  • Self-host a Ghost Blog With Traefik

    Ghost is a very popular open-source content management system. Started as an alternative to WordPress and it went on to become an alternative to Substack by focusing on membership and newsletter. The creators of Ghost offer managed Pro hosting but it may not fit everyone's budget. Alternatively, you can self-host it on your own cloud servers. On Linux handbook, we already have a guide on deploying Ghost with Docker in a reverse proxy setup. Instead of Ngnix reverse proxy, you can also use another software called Traefik with Docker. It is a popular open-source cloud-native application proxy, API Gateway, Edge-router, and more. I use Traefik to secure my websites using an SSL certificate obtained from Let's Encrypt. Once deployed, Traefik can automatically manage your certificates and their renewals. In this tutorial, I'll share the necessary steps for deploying a Ghost blog with Docker and Traefik.

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