Sy Tran Dung sytranvn

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 only way to painlessly generate it is to use CMake.

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.

Method summary

Basically what we need to achieve is to create a CMake file that will generate a compile_commands.json file with information about:

Environment variables in Jekyll templates

This is one way to pass some data (API tokens, etc.) to your Jekyll templates without putting it in your _config.yml file (which is likely to be committed in your GitHub repository).

Copy the environment_variables.rb plugin to your _plugins folder, and add any environment variable you wish to have available on the site.config object.

In a Liquid template, that information will be available through the site object. For example, _layouts/default.html could contain:

collapsible markdown?

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yes, even hidden code blocks!

print("hello world!")

	#!/usr/bin/env node
	/**
	*******************************
	* Copyright 2020 sytranvn *
	* License: MIT License *
	*******************************
	*/

	const { exit } = require('process')
	const {promises } = require('fs')

	// v8/utils
	inline int HexValue(uc32 c) {
	c -= '0';
	if (static_cast<unsigned>(c) <= 9) return c;
	c = (c \| 0x20) - ('a' - '0'); // detect 0x11..0x16 and 0x31..0x36.
	if (static_cast<unsigned>(c) <= 5) return c + 10;
	return -1;
	}

	#!/usr/bin/env sh

	# USAGE: transfer.sh [--ignore-existing] [user@]host[:port] <source> <destination>

	ie=""

	if [ "$1" = "--ignore-existing" ]; then
	ie="$1"
	shift
	fi

	<h2>jQuery and AJAX is FUN!</h2>
	<p id="p1">This is some text in a demo_test1.txt.</p>

	#!/usr/bin/env bash
	# by Jamie Tanna
	python -c $'import json\nimport sys\nwith open(sys.argv[1], "r") as f: print(json.dumps(json.load(f)))' $1

	export EDITOR=vim
	export VISUAL=$EDITOR