delano

# $ tweet "your message"
#
# See: http://solutious.com/blog/2009/07/13/bash-twitter/
#
# Contributors
# * @defunkt for the initial version
# * @anildigital and @grundprinzip for curl-fu
# * @solutious for the SSL sexytime

# See: http://curl.netmirror.org/docs/caextract.html

delano

require 'digest/sha1'

class String
  def hash
    Digest::SHA1.hexdigest self
  end
  
  def bit
    unpack('B*').first
  end

delano

A (Nicer) Redis Client for EventMachine

Redis is my favourite key/value store; it’s flexible, easy to set up and insanely fast. [EventMachine][] is a popular Ruby library for doing asynchronous I/O using an event loop. Bindings already [exist][em-redis] for accessing a Redis server using EM’s async-I/O (courtesy of Jonathan Broad), but unfortunately the resulting code has to use [Continuation-Passing Style][cps] via Ruby blocks. A very basic example of what that looks like follows:

delano

# Power law (log tail) distribution
# Copyright(C) 2010 Salvatore Sanfilippo
# this code is under the public domain

# min and max are both inclusive
# n is the distribution power: the higher, the more biased
def powerlaw(min,max,n)
    max += 1
    pl = ((max**(n+1) - min**(n+1))*rand() + min**(n+1))**(1.0/(n+1))
    max-1-pl.to_i

delano

# Author: Pieter Noordhuis
# Description: Simple demo to showcase Redis PubSub with EventMachine
#
# Requirements:
# - rubygems: eventmachine, thin, cramp, sinatra, yajl-ruby
# - a browser with WebSocket support
#
# Usage:
# ruby redis_pubsub_demo.rb
#

delano

class TheBell
  include HTTParty
  #debug_output $stdout
  base_uri 'http://api.thbll.com/ring-the-bell/SITENAME'
  def self.ring
    post("/PASSPHRASE/", :body => {})
  end
end

#

delano

# A DNS change to Rubygems.org is causing lingering issues. Namely, 
# rubygems.org and production.s3.rubygems.org are still pointing to
# the old address. See:
# http://twitter.com/#!/gemcutter/status/30666857698557952

# The symptoms:

# $ gem install benelux --version 0.5.17
# ERROR:  Could not find a valid gem 'benelux' (= 0.5.17) in any repository
# ERROR:  While executing gem ... (Gem::RemoteFetcher::FetchError)

delano

{
  "line_numbers": true,
  "gutter": true,
  "draw_centered": false,
  "wrap_width": 0,
  "word_wrap": false,
  "scroll_past_end": true
}

delano

---
# ^^^ YAML documents must begin with the document separator "---"
#
#### Example docblock, I like to put a descriptive comment at the top of my 
#### playbooks.
#
# Overview: Playbook to bootstrap a new host for configuration management.
# Applies to: production
# Description: 
#   Ensures that a host is configured for management with Ansible.

delano

[unix_http_server]
file=/tmp/supervisor.sock                       ; path to your socket file

[supervisord]
logfile=/var/log/supervisord/supervisord.log    ; supervisord log file
logfile_maxbytes=50MB                           ; maximum size of logfile before rotation
logfile_backups=10                              ; number of backed up logfiles
loglevel=error                                  ; info, debug, warn, trace
pidfile=/var/run/supervisord.pid                ; pidfile location
nodaemon=false                                  ; run supervisord as a daemon