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Programming Leftovers

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Development
  • g_assert_no_errno() and GLib 2.65.1

    It’s the start of a new GLib release cycle, and so it’s time to share what people have been contributing so far. GLib 2.65.1 will be out soon, and it will contain a new test macro, g_assert_no_errno(). This checks that a POSIX-style function (like, say, rmdir()) succeeds when run. If the function fails (and indicates that by returning a negative integer) then g_assert_no_errno() will print out the error message corresponding to the current value of errno.

  • Excellent Free Books to Learn Factor

    Factor is a dynamic stack-based programming language. It was originally conceived as an experiment to create a stack-based language practical for modern programming tasks. It was inspired by earlier stack-based languages like Forth and Joy.

    Factor programs look very different from programs in most other programming languages. At the most basic level, function calls and arithmetic use postfix syntax, rather than prefix or infix as in most programming languages. Factor provides local variables, but they are used in only a small minority of procedures because its language features allow most code to be comfortably written in a point-free style.

    Here’s our recommended free books to learn Factor.

  • 2020.20 Continuously Upgraded

    Patrick Böker has added AzureCI as a new Continuous Integration pipeline for Rakudo. It is meant to replace the different CI pipelines that Rakudo uses now. AzureCI tests all build combinations the other CI pipelines tested (plus some more). This will get rid of a good bit of redundant, wasteful testing and will make it easier to provide nightly builds and binary releases (with MacOS, Linux and Windows covered). The plan is to stop using Travis, AppVeyor and CircleCI for testing Rakudo core soon.

  • Convert a Python String to int

    Integers are whole numbers. In other words, they have no fractional component. Two data types you can use to store an integer in Python are int and str. These types offer flexibility for working with integers in different circumstances. In this course, you’ll learn how you can convert a Python string to an int. You’ll also learn how to convert an int to a string.

  • Python RegEx

    In this tutorial, you will learn about regular expressions (RegEx), and use Python's re module to work with RegEx (with the help of examples).

    A Regular Expression (RegEx) is a sequence of characters that defines a search pattern

  • Using Fedora to implement REST API in JavaScript: part 2

    In part 1 previously, you saw how to quickly create a simple API service using Fedora Workstation, Express, and JavaScript. This article shows you the simplicity of how to create a new API.

More in Tux Machines

digiKam 7.7.0 is released

After three months of active maintenance and another bug triage, the digiKam team is proud to present version 7.7.0 of its open source digital photo manager. See below the list of most important features coming with this release. Read more

Dilution and Misuse of the "Linux" Brand

Samsung, Red Hat to Work on Linux Drivers for Future Tech

The metaverse is expected to uproot system design as we know it, and Samsung is one of many hardware vendors re-imagining data center infrastructure in preparation for a parallel 3D world. Samsung is working on new memory technologies that provide faster bandwidth inside hardware for data to travel between CPUs, storage and other computing resources. The company also announced it was partnering with Red Hat to ensure these technologies have Linux compatibility. Read more

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.