Skip to content

Instantly share code, notes, and snippets.

View andykent's full-sized avatar

Andy Kent andykent

View GitHub Profile
@fousa
fousa / FairPlayer.swift
Last active June 1, 2023 12:28
Integrate HLS with FairPlay.
class FairPlayer: AVPlayer {
private let queue = DispatchQueue(label: "com.icapps.fairplay.queue")
func play(asset: AVURLAsset) {
// Set the resource loader delegate to this class. The `resourceLoader`'s delegate will be
// triggered when FairPlay handling is required.
asset.resourceLoader.setDelegate(self, queue: queue)
// Load the asset in the player.
import Foundation
import PlaygroundSupport
/// A thread-safe array.
public class SynchronizedArray<Element> {
private let queue = DispatchQueue(label: "io.zamzam.ZamzamKit.SynchronizedArray", attributes: .concurrent)
private var array = [Element]()
public init() { }
@andymatuschak
andymatuschak / States-v3.md
Last active June 3, 2025 20:57
A composable pattern for pure state machines with effects (draft v3)

A composable pattern for pure state machines with effects

State machines are everywhere in interactive systems, but they're rarely defined clearly and explicitly. Given some big blob of code including implicit state machines, which transitions are possible and under what conditions? What effects take place on what transitions?

There are existing design patterns for state machines, but all the patterns I've seen complect side effects with the structure of the state machine itself. Instances of these patterns are difficult to test without mocking, and they end up with more dependencies. Worse, the classic patterns compose poorly: hierarchical state machines are typically not straightforward extensions. The functional programming world has solutions, but they don't transpose neatly enough to be broadly usable in mainstream languages.

Here I present a composable pattern for pure state machiness with effects,

@piscisaureus
piscisaureus / pr.md
Created August 13, 2012 16:12
Checkout github pull requests locally

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = [email protected]:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

@adamawolf
adamawolf / Apple_mobile_device_types.txt
Last active July 3, 2025 05:23
List of Apple's mobile device codes types a.k.a. machine ids (e.g. `iPhone1,1`, `Watch1,1`, etc.) and their matching product names
i386 : iPhone Simulator
x86_64 : iPhone Simulator
arm64 : iPhone Simulator
iPhone1,1 : iPhone
iPhone1,2 : iPhone 3G
iPhone2,1 : iPhone 3GS
iPhone3,1 : iPhone 4
iPhone3,2 : iPhone 4 GSM Rev A
iPhone3,3 : iPhone 4 CDMA
iPhone4,1 : iPhone 4S
@tels7ar
tels7ar / gist:1760969
Created February 7, 2012 17:47 — forked from jtimberman/gist:881058
i can has ruby-1.9.3 package with fpm
sudo apt-get install libssl-dev
sudo gem install fpm
wget --timestamp ftp://ftp.ruby-lang.org//pub/ruby/1.9/ruby-1.9.3-p0.tar.gz
tar -zxvf ruby-1.9.3-p0.tar.gz
cd ruby-1.9.3-p0
time (./configure --prefix=/usr && make && make install DESTDIR=/tmp/installdir)
fpm -s dir -t deb -n ruby -v 1.9.3-p0 -C /tmp/installdir \
-p ruby-VERSION_ARCH.deb -d "libstdc++6 (>= 4.4.3)" \
@jtescher
jtescher / gist:1487555
Created December 16, 2011 19:31
Capistrano task: Optimize images with pngcrush and jpegoptim
namespace :image_compression do
desc 'Optimize images with pngcrush and jpegoptim'
task :process do
# Check for pngcrush
if (!`which pngcrush`.empty? rescue false) # rescue on environments without `which` (windows)
# Crush all .png files
run "find #{shared_path}/assets/ -type f -name '*.png' -print0 | xargs -0 pngcrush -q -e .crushed"
@mbbx6spp
mbbx6spp / README.md
Created December 4, 2011 04:24
Best UNIX shell-based tools I can't live without with example usages

Best UNIX Shell tools

These are a list of usages of shell commands I can't live without on UNIX-based systems.

Install

Mac OS X

Using Homebrew (yes, I am opinionated) you can install the following tools with the following packages:

@bmarini
bmarini / default.vcl.pl
Created June 30, 2011 18:01
A good varnish config for a Rails app
# https://www.varnish-cache.org/docs/2.1/tutorial/vcl.html
# https://www.varnish-cache.org/trac/wiki/VCLExamples
# Summary
# 1. Varnish will poll the backend at /health_check to make sure it is
# healthy. If the backend goes down, varnish will server stale content
# from the cache for up to 1 hour.
# 2. Varnish will pass X-Forwarded-For headers through to the backend
# 3. Varnish will remove cookies from urls that match static content file
# extensions (jpg, gif, ...)
@nutrun
nutrun / pimped_console_string.rb
Created November 17, 2010 19:50
Pimp my console strings
# Do something like: puts "ROCK".blink.bright.cyan
class String
def red
"\e[31m#{self}\e[0m"
end
def blue
"\e[34m#{self}\e[0m"
end