Roman Danilin rdanilin

Setting Up Clojure on OS X

I spent a lot of time trying to find a pretty optimal (for me) setup for Clojure… at the same time I was trying to dive in and learn it. This is never optimal; you shouldn't be fighting the environment while trying to learn something.

I feel like I went through a lot of pain searching Google, StackOverflow, blogs, and other sites for random tidbits of information and instructions.

This is a comprehensive "what I learned and what I ended up doing" that will hopefully be of use to others and act as a journal for myself if I ever have to do it again. I want to be very step-by-step and explain what's happening (and why) at each step.

Step 1: Getting Clojure (1.3)

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

Port Forwarding in Mavericks

Since Mavericks stopped using the deprecated ipfw (as of Mountain Lion), we'll be using pf to allow port forwarding.

####1. anchor file Create an anchor file under /etc/pf.anchors/<anchor file> with your redirection rule like:

	;;
	;; NS CHEATSHEET
	;;
	;; * :require makes functions available with a namespace prefix
	;; and optionally can refer functions to the current ns.
	;;
	;; * :import refers Java classes to the current namespace.
	;;
	;; * :refer-clojure affects availability of built-in (clojure.core)
	;; functions.

	<!doctype html>
	<title>Site Maintenance</title>
	<style>
	body { text-align: center; padding: 150px; }
	h1 { font-size: 50px; }
	body { font: 20px Helvetica, sans-serif; color: #333; }
	article { display: block; text-align: left; width: 650px; margin: 0 auto; }
	a { color: #dc8100; text-decoration: none; }
	a:hover { color: #333; text-decoration: none; }
	</style>

	#!/usr/bin/env python3

	"""A simple python script template.

	"""

	import os
	import sys
	import argparse

	-server
	-Xms2048m
	-Xmx2048m
	-XX:NewSize=512m
	-XX:MaxNewSize=512m
	-XX:PermSize=512m
	-XX:MaxPermSize=512m
	-XX:+UseParNewGC
	-XX:ParallelGCThreads=4
	-XX:MaxTenuringThreshold=1

	/**
	* ```
	* Does JDK8's Optional class satisfy the Monad laws?
	* =================================================
	* 1. Left identity: true
	* 2. Right identity: true
	* 3. Associativity: true
	*
	* Yes, it does.
	* ```

	#!/usr/bin/ruby
	# Create display override file to force Mac OS X to use RGB mode for Display
	# see http://embdev.net/topic/284710

	require 'base64'

	data=`ioreg -l -d0 -w 0 -r -c AppleDisplay`

	edids=data.scan(/IODisplayEDID.*?<([a-z0-9]+)>/i).flatten
	vendorids=data.scan(/DisplayVendorID.*?([0-9]+)/i).flatten