eskil’s gists

eskil / gist:29cf9783fa8c116bf1f96488f3447376

Created November 21, 2025 15:54

git recent alias that shows recent branch activity, uses fzf to switch

[alias]

	recent = "!f(){ refbranch=${1:-origin/master}; count=${2:-20}; rawlist=$(git for-each-ref --sort=-committerdate --format='%(refname:short)|%(HEAD)%(color:yellow)%(refname:short)|%(color:bold green)%(committerdate:relative)|%(color:blue)%(subject)|%(color:magenta)%(authorname)%(color:reset)' --color=always --count=\"$count\" refs/heads | while IFS='|' read -r branch color_branch date msg author; do clean_branch=$(echo \"$branch\" | tr -d '*'); ahead=$(git rev-list --count \"$refbranch..$clean_branch\" 2>/dev/null || echo 0); behind=$(git rev-list --count \"$clean_branch..$refbranch\" 2>/dev/null || echo 0); printf \"%s|%s|%s|%s|%.70s|%s\n\" \"$ahead\" \"$behind\" \"$color_branch\" \"$date\" \"$msg\" \"$author\"; done); displaylist=$( (printf \"%s\n\" \"$rawlist\" | column -ts'|') ); selected=$(printf \"%b\" \"$displaylist\" | fzf --ansi --with-nth=1.. --delimiter='|' --prompt='Recent Branches › ' --reverse --color='pointer:161,marker:168'); [ -z \"$selected\" ] && exit 0; branch=$(printf \"$selected\"

eskil / task_async_stream_supervisor.ex

Created February 17, 2021 22:36

Example of how to do retryable Task.Supervisor.async_stream since it doesn't do retries for you

	require Integer
	require Logger

	defmodule Processor do
	def process(state) do
	:timer.sleep(1000)
	result = :os.system_time(:millisecond)
	Logger.info("process(#{state}) -> #{result}")
	case Integer.is_even(result) do
	true ->

eskil / BVI 2016

Created June 1, 2016 02:30

	#!/usr/bin/env escript
	%% -- erlang --
	%%! -smp enable -sname bvi_group
	%% escript ./bvi_group.erl

	% Magic compiler directive to make reduce/1 be visible in main/1.
	-mode(compile).


	%% This is a variant of the debt reduce interview question that works

eskil / gist:a1b8365b31cb95253f78186125c89fda

Created May 13, 2016 21:34

VPM-B

	PROGRAM VPMDECO
	C===============================================================================
	C Varying Permeability Model (VPM) Decompression Program in FORTRAN
	C
	C Author: Erik C. Baker
	C
	C "DISTRIBUTE FREELY - CREDIT THE AUTHORS"
	C
	C This program extends the 1986 VPM algorithm (Yount & Hoffman) to include
	C mixed gas, repetitive, and altitude diving. Developments to the algorithm

eskil / gist:33f6a007a82e4cf182ed24835f4d4426

Created May 13, 2016 21:23

partial dive plan parser

	struct dive_table_grammar : boost::spirit::grammar<dive_table_grammar> {
	dive_table_grammar (TablesCollection &t) : tablescollection (t) { }

	template<typename Scanner>
	struct definition {
	definition (const dive_table_grammar &dt)
	: si1 (minutes (0)), tablescollection (dt.tablescollection)
	{
	using namespace boost::spirit;
	m_depth_rule

eskil / gist:10614c61b9dd5823ed17da316f9cb834

Created May 13, 2016 21:12

.cfg parse in boost spirit

	//#define BOOST_SPIRIT_DEBUG
	#include <boost/spirit.hpp>
	#include <boost/spirit/actor.hpp>
	#include <string>
	#include <map>
	#include <algorithm>

	using namespace std;
	using namespace boost::spirit;

eskil / gist:5f4f572da98121bd157e49b6b391ed2a

Created May 13, 2016 21:06

	#include "statemachines.h"
	#include <fstream>

	//*********************************************************************************************

	namespace simple_test {

	/*
	#define TRY_CLASS_PTR_STATES 0
	#define TRY_CLASS_STATES 0

eskil / gist:fcd6890403d3b9b707ecd15be17c050f

Created May 13, 2016 21:05

	/* -- mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -- */

	//
	// (C) Eskil Heyn Olsen 2009
	//

	#include <iostream>
	#include <vector>
	#include <utility>
	#include <iterator>

eskil / gist:fc24d6c48810206963fca5f76ba142fb

Created May 13, 2016 21:04

	#include <sstream>
	#include <iostream>
	#include <string>
	#include <vector>

	template<typename InIt, typename Tdelim, typename Tj>
	Tj& join (InIt first, InIt last, const Tdelim &d, Tj &j) {
	if (first == last)
	return j;
	InIt next = first;

eskil / gist:c327683c5a971087cb773442ec399de5

Created May 13, 2016 21:03

	//#define BOOST_SPIRIT_DEBUG
	#include <boost/spirit.hpp>
	#include <boost/spirit/actor.hpp>
	#include <string>
	#include <map>
	#include <stdexcept>
	#include <algorithm>

	using namespace std;
	using namespace boost::spirit;

Eskil Heyn Olsen eskil