Denver Smith denvaar

There Are a few challenges when it comes to automatically mix format-ing your files on save in Vim.

Needs to happen async, so it doesn't block you from typing while it's working.
You want to be able to keep your cursor position, not be reset to the top of the file after formatting completes.
Formatting should happen smoothly whether doing :w, or :wq. Formatting after :wq gave me trouble in the past and would fail formatting. I think this is because mix format was called via the editor, but then the editor process exited, so it was getting terminated (I think).

This simple config seems to do a pretty good job at solving these challenges:

First, in $nvim_config_dir/ftplugin/elixir.vim (and eelixir.vim) I have an autocommand set up. It uses BufWritePost because the work is going to happen async. I think BufWritePre should be OK too.

	#include <stdbool.h>
	#include <stdlib.h>

	#include "assoc_array.h"

	typedef struct AssocArrayItem {
	char key;
	unsigned int value;
	} AssocArrayItem;

	defmodule S3Downloads do
	@moduledoc """
	Use at your own risk.

	Code heavily borrowed from:
	- https://github.com/ex-aws/ex_aws/blob/main/lib/ex_aws/auth.ex
	- https://gist.github.com/chrismccord/37862f1f8b1f5148644b75d20d1cb073

	"""

	function FormatElixirCode()
	let l:winview = winsaveview()
	silent %!mix format -
	call winrestview(l:winview)
	:endfunction

	autocmd BufWritePre .ex,.eex :call FormatElixirCode()

	# Erlang
	wget http://www.erlang.org/download/<latest_version>.tar.gz
	tar -zxvf <latest_version>.tar.gz
	# inside of the extracted directory:
	./configure
	make
	sudo make install

	# Elixir
	wget https://github.com/elixir-lang/elixir/archive/<latest_version>.zip

	query {
	organization(login: "orgname") {
	repository(name: "reponame") {
	refs(first: 10, refPrefix: "refs/heads/") {
	edges {
	node {
	name
	}
	}
	}

	"""
	You are given a sorted array of positive integers and a number 'X'.
	Print out all pairs of numbers whose sum is equal to X.
	Print out only unique pairs and the pairs should be in ascending order

	Input:

	Your program should accept as its first argument a filename.
	This file will contain a comma separated list of sorted numbers
	and then the sum 'X', separated by semicolon. Ignore all empty lines.

	package main

	import "fmt"

	type node struct {
	value string
	left *node
	right *node
	}

	#define CATCH_CONFIG_MAIN
	#include "catch.hpp"
	#include <vector>

	using namespace std;

	struct Node {
	int value;
	Node *left;
	Node *right;