Wolf-SO

Setting up SDL2 for development on Windows with MSYS2 and VS Code

Hello! I made this document for anyone trying to setup an enviroment for SDL2 on Windows using VS Code for building and debugging.

This is just a basic setup to test everything works and compiles correctly. This is adapted from this guide by Adam Richardson, made to work with the UCRT enviroment.

So, let's get to it.

Download and install MSYS2 64bit

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.

How to add more to Git Bash on Windows

Git for Windows comes bundled with the "Git Bash" terminal which is incredibly handy for unix-like commands on a windows machine. It is missing a few standard linux utilities, but it is easy to add ones that have a windows binary available.

The basic idea is that C:\Program Files\Git\mingw64\ is your / directory according to Git Bash (note: depending on how you installed it, the directory might be different. from the start menu, right click on the Git Bash icon and open file location. It might be something like C:\Users\name\AppData\Local\Programs\Git, the mingw64 in this directory is your root. Find it by using pwd -W). If you go to that directory, you will find the typical linux root folder structure (bin, etc, lib and so on).

If you are missing a utility, such as wget, track down a binary for windows and copy the files to the corresponding directories. Sometimes the windows binary have funny prefixes, so

	// Quick test of environment variable passing
	// $ cc -nostartfiles -o testenv testenv.cpp
	// $ cl testenv.cpp /link /subsystem:console kernel32.lib
	//
	// Spawns a copy of itself with a custom-built environment block, and
	// the spawned child examines/probes that block.
	//
	// This is free and unencumbered software released into the public domain.

	typedef int I;

	import http.server
	import http.cookiejar
	import io
	import socket
	from http import HTTPStatus

	import ssl
	import os
	import zlib
	server_address = ('0.0.0.0', 4443)

	#!/usr/bin/env python3
	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443

	import http.server

	# taken from http://www.piware.de/2011/01/creating-an-https-server-in-python/
	# generate server.xml with the following command:
	# openssl req -new -x509 -keyout server.pem -out server.pem -days 365 -nodes
	# run as follows:
	# python simple-https-server.py
	# then in your browser, visit:
	# https://localhost:4443
	# Changed for python 3

	import http.server

	#pragma once
	#include <string>
	#include <iostream>
	#include <fstream>
	#include <sstream>

	class csvfile;

	inline static csvfile& endrow(csvfile& file);
	inline static csvfile& flush(csvfile& file);

	WITH RECURSIVE
	unhex(str, val, weight) AS (
	SELECT 'deadbeef', 0, 1
	UNION ALL
	SELECT
	substr(str, 1, length(str) - 1),
	val + (instr('0123456789ABCDEF', substr(str, length(str), 1)) - 1) * weight,
	weight * 16
	FROM unhex WHERE length(str) > 0
	)