How to prevent JDT LS (via m2e) from adding generated-sources APT folders and org.eclipse.jdt.apt prefs to an Eclipse+Maven project in VS Code. If you open a Maven Java project in Visual Studio Code that also contains Eclipse project metadata (.project, .classpath, .settings/…), you might notice that VS Code’s Java tooling (JDT Language Server) “helpfully” edits […]
This is the style I use to highlight my Java code in LaTeX documents with the Listings package, with Eclipse colors:
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% Colors for code highlighting according to the Eclipse default theme \definecolor{keywordColor}{rgb}{0.5, 0, 0.33} \definecolor{commentColor}{rgb}{0.25, 0.5, 0.35} \definecolor{stringColor}{rgb}{0.16, 0, 1} \definecolor{numberColor}{rgb}{0, 0, 0} % Color style \lstdefinestyle{mystyle}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, numberstyle=\color{numberColor}, commentstyle=\color{commentColor}\itshape, stringstyle=\color{stringColor}\ttfamily, keywordstyle=\color{keywordColor}\bfseries, } |
And this is an example of a document, where I show the same listing both with black and white colors an Eclipse colors:
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\documentclass{article} \usepackage[T1]{fontenc} \usepackage[utf8]{inputenc} % not needed on XeLaTeX/LuaLaTeX \usepackage{xcolor} \usepackage{listings} % Colors for code highlighting according to the Eclipse default theme \definecolor{keywordColor}{rgb}{0.5, 0, 0.33} \definecolor{commentColor}{rgb}{0.25, 0.5, 0.35} \definecolor{stringColor}{rgb}{0.16, 0, 1} \definecolor{numberColor}{rgb}{0, 0, 0} % Color style \lstdefinestyle{mystyle}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, numberstyle=\color{numberColor}, commentstyle=\color{commentColor}\itshape, stringstyle=\color{stringColor}\ttfamily, keywordstyle=\color{keywordColor}\bfseries, } % Black and white style \lstdefinestyle{mystylebw}{ flexiblecolumns=true, keepspaces=true, tabsize=4, showstringspaces=false, basewidth={0em,0em},, numbers=left, basicstyle=\scriptsize, commentstyle=\itshape, stringstyle=\ttfamily, } \begin{document} \section*{Demo} With the default black and white style: \begin{lstlisting}[language=Java,style=mystylebw] // A simple Java program class Demo { public static void main(String[] args) { System.out.println("Hello, world!"); } } \end{lstlisting} \noindent With the color style: \begin{lstlisting}[language=Java,style=mystyle] // A simple Java program class Demo { public static void main(String[] args) { System.out.println("Hello, world!"); } } \end{lstlisting} \end{document} |
Here’s the result:
Remembering every Sway shortcut is tough. I wrote a small script that parses your Sway config, displays all bindsym shortcuts in a clean, searchable list via Rofi, and executes the command associated with whichever one you select. It’s fast, keyboard-friendly, and great for discovery: “What did I bind to Mod + Shift + P again?” Now you […]
If you use the LaTeX listings package to typeset Java, you’ve probably noticed that modern Java has moved faster than the package itself. Records, var, and text blocks may not highlight correctly out of the box. The good news: the listings package is extensible so that you can teach it “modern Java” with a tiny […]
If you’ve installed Linux on your MacBook Air, you’ve probably discovered that while most hardware works out of the box, the built-in FaceTime HD camera is notably absent from your video applications. Don’t worry—you’re not alone, and there’s a solution that doesn’t involve external USB webcams or complicated workarounds. The issue stems from Apple’s use […]
I have already blogged about managing KDE dotfiles with chezmoi and chezmoi_modify_manager. But what about maintaining them? For example, one of the KDE configuration files changes, and you want to update the version managed by chezmoi. Here’s an example where the Kate configuration file changed on the system and chezmoi detects that:
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❯ chezmoi status MM .config/katerc |
You can […]
I know there are many blog posts about configuring Tmux to support true color and italics in Alacritty, but many of them miss a crucial detail that breaks Neovim’s diagnostic undercurl (wavy underlines). Many of them suggest overriding the TERM variable in Alacritty to xterm-256color, which causes Neovim to lose the ability to display undercurl […]
Zram, https://www.kernel.org/doc/html/latest/admin-guide/blockdev/zram.html, is a Linux kernel module that creates a compressed block device in RAM. This device can be used as swap space or a general-purpose RAM disk. By compressing data in memory, zram allows your system to store more data in RAM, reducing the need to swap to slower disk storage and improving overall […]
I like Nerd Fonts a lot, and blogged about those in the past. If you spend a lot of time in the terminal, you’ve probably heard of them: they patch popular programming fonts with a huge set of icons, making your terminal and development environment look great and more informative. Here’s how you can easily […]
If you use Lazygit as your terminal Git UI, you know how convenient it is for staging, committing, and managing branches. I use it in Neovim (LazyVim already configures it). Integrating a custom pager (Lazygit Custom Pagers Documentation) can dramatically improve how diffs are displayed. In this blog post, I’ll document how to use delta: […]
When working with Maven projects, the Surefire plugin is commonly used to execute tests, but it lacks a built-in feature to display the total execution time across all test suites. This can be particularly important when monitoring performance trends in larger projects with many test classes. Maven’s Surefire plugin reports execution time for individual test […]
I’m going to show you how to use Neovim on Gitpod. This can be useful for checking and testing your Neovim configuration. The example can be found here: https://github.com/LorenzoBettini/neovim-gitpod-example. I’m using a LazyVim distribution as a demonstration. The Gitpod custom Dockerfile, “.gitpod.Dockerfile”, must be tweaked to install Neovim and its requirements (especially for using Lazyvim):
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# You can find the new timestamped tags here: https://hub.docker.com/r/gitpod/workspace-full/tags FROM gitpod/workspace-full:2025-04-16-08-49-20 # Install packages that are not in the Ubuntu repos # the version in Ubuntu repos is too old for lazy.vim # shellcheck is not available at all in Ubuntu repos RUN brew update RUN brew install \ neovim \ shellcheck # install-packages is a wrapper for `apt` that helps skip a few commands in the docker env. # additional packages needed in neovim with this configuration # (tree is just to inspect folders, not needed by neovim) RUN sudo install-packages \ fzf \ ripgrep \ stow \ npm \ tree |
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Using “pip” is the supported installation method for Ansible and Molecule. Let’s install Python libraries and applications (in this case, Ansible and Molecule) in a Python virtual environment. (This post is similar to the one about Ubuntu.) First, install the required packages, including the Python virtual environment package:
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sudo pacman -S python-pip python-virtualenv |
Create a virtual environment somewhere (in […]
The “remote” feature of flash.nvim is handy: it acts in “operator pending mode” to perform operations and then return to the original position. It took me some time to understand what it was doing, so I’m writing about it. I’m using it in the LazyVim distribution, which enables “flash” by default (and also “which-key”, which […]
Using “pip” is the supported installation method for Ansible and Molecule. In Ubuntu, just using “pip” will lead to the error “externally-managed-environment” because of the Python environment that is “externally managed” by the package manager (this prevents direct use of pip for system-wide installations to avoid conflicts or issues). (This post is similar to the one […]
Similar to what I had already shown in a previous post, in this post, I show how you can install (and keep up-to-date) the “tpm” (Tmux Plugin Manager) with Chezmoi, which I highly recommend! Typically, you manually install “tpm” by cloning its GitHub repository into the proper directory:
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git clone https://github.com/tmux-plugins/tpm ~/.tmux/plugins/tpm |
Let’s do that automatically with Chezmoi instead. Chezmoi […]
I like the tracker service in Gnome, which indexes files so that you can easily search for them from the Activity view or the file manager. However, I don’t like tracker-extract, which also indexes the file contents: I use Recoll for such a service, and tracker-extract uses too much CPU (it indexes new or modified […]
In Neovim, when you add a new word to your spellchecking dictionary with the command “zg”, the word will be added to a “.add” file in your config directory in the subdirectory “spell”. For example, “spell/en.utf-8.add”, depending on your locale. That’s a textual file you might want to share among different machines, e.g., part of […]
Ubuntu has forced the installation of Firefox and Thunderbird as snap packages for some time. I don’t like snap packages since they’re a bit slower to start, take much more space on the disk, and store the profile files into the “.snap” directory folder, while I want them in the standard place in my home […]
This post can be used for Arch Linux and EndeavourOS. Recently, a change was committed that highly compresses AUR packages before the actual installation. This takes a lot of time: even on a fast machine, installing something like Chrome or Visual Studio (AUR packages) takes even minutes just for the compression phase. Since I typically […]