Félix Chabot Chabam

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.

This guide offers the least time-consuming way of setting up Nginx for serving Git repositories over HTTP using Gitweb. The stuff here has been tested with Git 1.9.1 and Nginx 1.6.0 on Debian Wheezy. Probably also works for Ubuntu, etc.

Total time ~ 10 minutes.

Install

Enable wheezy-backports by adding this line to /etc/apt/sources.list:

deb http://http.debian.net/debian wheezy-backports main

	ex ()
	{
	if [ -f $1 ] ; then
	case $1 in
	*.tar.bz2) tar xjf $1 ;;
	*.tar.gz) tar xzf $1 ;;
	*.bz2) bunzip2 $1 ;;
	*.rar) unrar x $1 ;;
	*.gz) gunzip $1 ;;
	*.tar) tar xf $1 ;;

	vec3 hsv2rgb(vec3 c)
	{
	vec4 K = vec4(1.0, 2.0 / 3.0, 1.0 / 3.0, 3.0);
	vec3 p = abs(fract(c.xxx + K.xyz) * 6.0 - K.www);
	return c.z * mix(K.xxx, clamp(p - K.xxx, 0.0, 1.0), c.y);
	}