Nathan Jaremko njaremko

FreeBSD on a MacBook Pro

Since 2008 or 2009 I work on Apple hardware and OS: back then I grew tired of Linux desktop (which is going to be MASSIVE NEXT YEAR, at least since 2001), and switched to something that Just Works. Six years later, it less and less Just Works, started turning into spyware and nagware, and doesn't need much less maintenance than Linux desktop — at least for my work, which is system administration and software development, probably it is better for the mythical End User person. Work needed to get software I need running is not less obscure than work I'd need to do on Linux or othe Unix-like system. I am finding myself turning away from GUI programs that I used to appreciate, and most of the time I use OSX to just run a terminal, Firefox, and Emacs. GUI that used to be nice and unintrusive, got annoying. Either I came full circle in the last 15 years of my computer usage, or the OSX experience degraded in last 5 years. Again, this is from a sysadmin/developer ki

Channels Are Not Enough

... or Why Pipelining Is Not That Easy

Golang Concurrency Patterns for brave and smart.

By @kachayev

Intro

WARNING: If you're reading this in 2021 or later, you're likely better served by reading:

(This gist was created in 2013 and targeted the legacy GOPATH mode.)

$ ssh -A vm
$ git config --global url."[email protected]:".insteadOf "https://github.com/"

	# Instructions for fresh install

	$ sh <(curl -L https://nixos.org/nix/install) --darwin-use-unencrypted-nix-store-volume --daemon
	# reboot
	$ source /nix/var/nix/profiles/default/etc/profile.d/nix-daemon.sh
	$ echo 'export NIX_PATH=darwin-config=$HOME/.nixpkgs/darwin-configuration.nix:$HOME/.nix-defexpr/channels${NIX_PATH:+:}$NIX_PATH' \| tee -a ~/.zshrc
	$ echo 'source $HOME/.nix-profile/etc/profile.d/hm-session-vars.sh' \| tee -a ~/.zshrc
	$ nix-channel --add https://nixos.org/channels/nixpkgs-unstable
	$ nix-channel --add https://github.com/LnL7/nix-darwin/archive/master.tar.gz darwin
	$ nix-channel --add https://github.com/nix-community/home-manager/archive/master.tar.gz home-manager

	{-# LANGUAGE DataKinds #-}

	-- \| My database API.

	module DBAPI where

	import Data.Defaults

	data ConnSpec p = ConnSpec
	{ username :: !(Required p String)

	# Auto Learning Steps
	# Anki 2.0 addon
	# Author EJS
	# https://eshapard.github.io/
	#
	# Sets the learning steps sequence of each deck options group.
	from anki.hooks import addHook
	from aqt import mw
	#from aqt.utils import showInfo
	#import time

	# Anki Deadline
	# Anki 2 plugin
	# Author: EJS
	# Version 0.1
	# Description: Adjusts 'New Cards per Day' setting of options group to ensure all cards
	# are seen by deadline.
	# License: GNU GPL v3 <www.gnu.org/licenses/gpl.html>
	from __future__ import division
	import datetime, time, math
	from anki.hooks import wrap, addHook

	package main

	import (
	"context"
	"flag"
	"fmt"
	"log"
	"net/http"
	"os"
	"os/signal"

	// Faster solution for:
	// http://www.boyter.org/2017/03/golang-solution-faster-equivalent-java-solution/
	// With threading.
	// g++ -std=c++11 -Wall -Wextra -O3 -pthread

	// On my computer (i5-6600K 3.50 GHz 4 cores), takes about ~160 ms after the CPU
	// has warmed up, or ~80 ms if the CPU is cold (due to Turbo Boost).

	// How it works: Start by generating a list of losing states -- states where the
	// game can end in one turn. Generate a new list of states by running the game

	#!/bin/bash
	#
	# Copy data from a Time Machine volume mounted on a Linux box.
	#
	# Usage: copy-from-time-machine.sh <source> <target>
	#
	# source: the source directory inside a time machine backup
	# target: the target directory in which to copy the reconstructed
	# directory trees. Created if it does not exists.
	#