heisters’s gists

heisters / action_performance.rb

Created February 3, 2010 19:46

	#!/usr/bin/env ruby
	# A script for profiling and benching Rails actions, because Rails's default scripts suck.
	# Examples:
	#
	# Run a profile on 10 runs of /widgets/1
	# ./action_performance.rb /widgets/1 10 profile
	#
	# Run a benchmark on 15 runs of /widgets/1
	# ./action_performance.rb /widgets/1 15 bench

heisters / code_review.html.erb

Created March 4, 2010 18:21

	<h1><%= @video.title %></h1>
	<div class="ad">
	<%= image_tag(@video.ad_url) %>
	<p class="description"><%= @video.ad_shortDescription %></p>
	</div>

heisters / sprite_animator.js

Created April 30, 2010 17:20

Turn a sprite image into an animation and easily control playback

	(function($){
	/*
	* var sa = new $.SpriteAnimator({
	* url: "/images/carousel-spinner-sprites.gif",
	* duration: 5000,
	* sprite: {height: 19, width: 18},
	* frames: 8
	* });
	* $("body").append(sa.element);
	*/

heisters / crash.rb

Created May 3, 2010 22:55

	# Causes a segfault
	#
	# $ ruby crash.rb
	# parsed
	# selected
	# crash.rb:12: [BUG] Segmentation fault
	# ruby 1.8.7 (2010-01-10 patchlevel 249) [i686-linux]
	#
	# Aborted

heisters / git_loc_over_time.rb

Created May 4, 2010 18:14

	#!/usr/bin/env ruby
	#
	# Get the lines of code in a file, over time as CSV.
	require 'rubygems'
	require 'fastercsv'

	file = ARGV[0] or abort("Must specify a file")
	log = `git log --pretty=format:"%H %ai" #{file}`
	log.split(/[\r\n]/).map do \|log_line\|
	commit, date = log_line.split(/ /)

heisters / patient.rb

Created July 22, 2010 17:16

Make a thread wait for Ruote to do something notable

	module Patient
	class NestedWaitForError < StandardError; end

	class << self
	def lock
	@lock \|\|= Mutex.new
	end

	def waiting
	lock.synchronize{@waiting}

heisters / benchmarks.rb

Created September 8, 2010 19:33

Monkey patches for memory bloat issues in Ruote

	# You should kill the Ruby process in between runs to flush out the memory
	# entirely.
	puts "memory usage: #{MemoryUsage.get}"
	n = 5
	Benchmark.bm do \|r\|
	r.report do
	n.times do
	Workflow.engine.context.history.by_process("20100826-behobijunu")
	end
	end

heisters / parse_ua_strings.rb

Created October 18, 2010 22:05

Get statistics on browser and OS versions from a file of User-Agent strings

	#!/usr/bin/env ruby
	require 'rubygems'
	require 'user-agent'
	require 'rational'
	require 'yaml'

	parsed = nil
	File.open(ARGV[0], 'r') do \|f\|
	parsed = f.each_line.map{\|l\|Agent.new(l.strip)}
	end

heisters / copy_data_to_new_storage_backend.rb

Created November 12, 2010 19:40

	# db/migrations/2010-11-12_10_54_copy_data_to_new_storage_backend.rb

	couch = Workflow::Engine.build_couch_storage
	redis = Workflow::Engine.build_redis_storage

	# based on http://groups.google.com/group/openwferu-users/browse_thread/thread/8d32d3052eacfba6/423f33bb4b44189f and
	# Ruote::StorageBase#copy_to
	#
	# just limits the types of data that are copied over as compared to copy_to
	%w(

heisters / gist:674562

Created November 12, 2010 19:42

migration error

	/home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/base.rb:280:in `[]': can't convert String into Integer (TypeError)
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/base.rb:280:in `filter_schedules'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/base.rb:280:in `select'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/base.rb:280:in `filter_schedules'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/base.rb:143:in `get_schedules'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/composite_storage.rb:123:in `send'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/storage/composite_storage.rb:123:in `get_schedules'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/ruote/worker.rb:141:in `step'
	from /home/ian/.rvm/gems/ruby-1.8.7-p174/gems/ruote-2.1.10/lib/r

Ian Heisters heisters