yoshuawuyts

function lens(get, set) {
  var f = function (a) { return get(a); };
  f.set = set;
  f.mod = function (f, a) { return set(a, f(get(a))); };
  return f;
}

var first = lens(
  function (a) { return a[0]; },
  function (a, b) { return [b].concat(a.slice(1)); }

yoshuawuyts

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname

yoshuawuyts

set-window-option -g utf8 on
set -g mode-mouse on
set -g mouse-resize-pane on
set -g mouse-select-pane on
set -g mouse-select-window on
set-option -g prefix C-q
set -g history-limit 50000
unbind-key C-b
bind-key q send-prefix
set -g base-index 1

yoshuawuyts

# add this to your .zshrc and then add
# $(__prompt_color) to your PROMPT

function __prompt_color()
{
  local RGB CONVERTED RH GH BH RD GD BD
  RGB=$(echo $(pwd) | md5 | cut -c 1-6)

  RH=$(echo ${RGB} | cut -c 1-2)
  GH=$(echo ${RGB} | cut -c 3-4)

yoshuawuyts

I use tmux splits (panes). Inside one of these panes there's a Vim process, and it has its own splits (windows).

In Vim I have key bindings C-h/j/k/l set to switch windows in the given direction. (Vim default mappings for windows switching are the same, but prefixed with C-W.) I'd like to use the same keystrokes for switching tmux panes.

An extra goal that I've solved with a dirty hack is to toggle between last active panes with C-\.

Here's how it should work:

yoshuawuyts

mostly in the realm of creative coding and graphics programming

lots of these are my own :)

tooling

https://www.npmjs.org/package/wzrd (browserify dev server)
https://www.npmjs.org/package/budo (like wzrd but with incremental watching & LiveReload)
https://www.npmjs.org/package/beefy (more fully-featured dev server)

yoshuawuyts

Terraform, CoreOS, and Digital Ocean

Let's use Terraform to easily get a CoreOS cluster up on Digital Ocean. In this example we will get a 5 node CoreOS cluster up and running on the Digital Ocean 8GB size.

Install Terraform

Grab a copy of Terraform for your platform from http://www.terraform.io/downloads.html. Follow the instructions at http://www.terraform.io/intro/getting-started/install.html by getting Terraform in your PATH and testing that it works.

Digital Ocean API Key

yoshuawuyts

box: wercker/nodejs
# Build definition
build:
  # The steps that will be executed on build
  steps:

    - script:
        name: Reduce NPM cache time
        code: npm config set cache-lock-stale 10000

yoshuawuyts

// stepper.js
// 2015 cloudbender
// iojs 1.0.2
// generator works and steps itself, 
// from the event loop;

process.on( 'exit', function(){console.log('bye');} );

(function main(){

yoshuawuyts

#!/bin/sh
# Command-line world clock
# Taken from  http://stackoverflow.com/questions/370075/command-line-world-clock

# .worldclock.zones file looks like:
# US/Pacific
# Europe/Berlin
# Chile/Continental

: ${WORLDCLOCK_ZONES:=$HOME/.worldclock.zones}