Nadav Frenkel nadavf24

How to use clangd C/C++ LSP in any project

tl;dr: If you want to just know the method, skip to How to section

Clangd is a state-of-the-art C/C++ LSP that can be used in every popular text editors like Neovim, Emacs or VS Code. Even CLion uses clangd under the hood. Unfortunately, clangd requires compile_commands.json to work, and the easiest way to painlessly generate it is to use CMake.

For simple projects you can try to use Bear - it will capture compile commands and generate compile_commands.json. Although I could never make it work in big projects with custom or complicated build systems.

But what if I tell you you can quickly hack your way around that, and generate compile_commands.json for any project, no matter how compilcated? I have used that way at work for years, originaly because I used CLion which supported only CMake projects - but now I use that method succesfully with clangd and Neovim.

Midnight Commander Keyboard Shortcuts for macOS

In macOS Meta key is Esc. In some other systems Meta key is Alt.

Ctrl

Ctrl-T - Select item (like Insert key in another OS).
Ctrl-Space - Calculate directory size.
Ctrl-O - Switch panels on/off.
Ctrl-U - Swap panels.

Open in Visual Studio Code

Open Automator
Create a new document
Select Quick Action
Set “Service receives selected” to files or folders in any application
Add a Run Shell Script action
- your default shell should already be selected, otherwise use /bin/zsh for macOS 10.15 (”Catalina”) or later
- older versions of macOS use /bin/bash
if you're using something else, you probably know what to do 😉

Debugging PHP with XDebug v3 inside Docker using VSCode

Assumptions / Prerequisites

XDebug v3+ inside Docker (e.g. php:7.3-apache Docker image)
Running Docker v20.10+
VSCode with PHP Debug Extension (Felix Becker)
Using Docker Compose for orchestration

Objective

Change scrollback limit for tmux buffer on iterm

Original stackoverflow post here

Solution

iTerm2 build 1.0.0.20130302 has an preference which enables it to capture scrollback even when a so-called hard status line is present:
- https://i.stack.imgur.com/QS1vB.png
- Preferences -> Terminal -> check "Save lines to scrollback when an app status bar is present"
maybe also check "Save lines to scrollback in alternate screen mode"

Let's Destroy C

I have a pet project I work on, every now and then. CNoEvil.

The concept is simple enough.

What if, for a moment, we forgot all the rules we know. That we ignore every good idea, and accept all the terrible ones. That nothing is off limits. Can we turn C into a new language? Can we do what Lisp and Forth let the over-eager programmer do, but in C?

Android create Unix domain socket by bound file descriptor

Android provide LocalServerSocket and LocalSocket to create Unix domain sockets for local interprocess communication (IPC). Unix socket address can behave in three types[1],

pathname
unnamed
abstract

LocalServerSocket provide two public constructors for create socket in Linux abstract namespace[2] and create socket using file descriptor that's already been created and bound[3].

Create LocalServerSocket using [FileDescriptor](https://docs.oracle.com/javase/7/docs/api/j

How to GDB android native libraries

[1] Install NDK from android studio

[2] Push appropriate gdb-server to phone

adb push ~/android-sdk-linux/ndk-bundle/prebuilt/android-<arch>/gdbserver/gdbserver /data/local/tmp
adb shell "chmod 777 /data/local/tmp/gdbserver"
adb shell "ls -l /data/local/tmp/gdbserver"

[4] Forward ports

adb forward tcp:1337 tcp:1337

	#!/usr/bin/env python3

	import os
	import sys
	import click
	import subprocess
	import tempfile
	import itertools as IT
	import select
	from time import sleep

	// Copyright (C) 2022 Evan McBroom
	//
	// Permission is hereby granted, free of charge, to any person obtaining a copy
	// of this software and associated documentation files (the "Software"), to deal
	// in the Software without restriction, including without limitation the rights
	// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
	// copies of the Software, and to permit persons to whom the Software is
	// furnished to do so, subject to the following conditions:
	//
	// The above copyright notice and this permission notice shall be included in