christos

require 'rubygems'
require 'thread'
require 'rails/all'
require 'benchmark'

include ActionView::Helpers::FormOptionsHelper

puts "Using #{`ruby -v`}"

@choices = 700.times.collect { [(0...50).map{ ('a'..'z').to_a[rand(26)] }.join, rand(10000)] }

christos

curl "https://raw.github.com/gist/1386087/2f757de4b575a632acc3d59c1224e2134ef7973c/ssh-copy-id" -o ~/bin/ssh-copy-id
chmod +x ~/bin/ssh-copy-id

christos

# This is an event.d (upstart) script to keep monit running.
# To install disable the old way of doing things:
#
#   /etc/init.d/monit stop && update-rc.d -f monit remove
#
# then put this script here:
#
#   /etc/init/monit.conf
#
# and reload upstart configuration:

christos

curl -OL http://rubyforge.org/frs/download.php/75414/linecache19-0.5.13.gem
curl -OL http://rubyforge.org/frs/download.php/75415/ruby-debug-base19-0.11.26.gem

gem install linecache19-0.5.13.gem

gem install ruby-debug-base19-0.11.26.gem -- --with-ruby-include=$rvm_path/src/`rvm current`

rm ruby-debug-base19-0.11.26.gem linecache19-0.5.13.gem

christos

The original URL:

https://www.icloud.com/journal/#p=02&t=CAEQARoQIx7SyDPX1G1Fn4_lEqnNoA==&f=/82J93X7T25~com~apple~mobileiphoto/Public/46D1774C-ECAE-4DA5-8EEB-65793AB2EF9A.jb/index.json

...when shortened to

https://t.co/dKSWfYh

...which incorrectly expands to:

christos

Hello everyone,

I've already asked on IRC and no one seemed to have an idea why the following is happening:

I can consistently get the RubyMotion runtime and the device to freeze when running this simple code (https://gist.github.com/2936457) with rake device and then hitting the Cancel button on the UIImagePicker. I am guessing this is related to callbacks in general, but I couldn't come up with a simpler example.

As you can see, the UIImagePicker callback method simply uses each to iterate over an array of strings, but as soon as it hits the syntax error on line 28 (putd) it stops. No exception in the logs, nothing. The process has to be killed to exit it.

Any ideas? Am I supposed to release/retain something? I know blocks are a bit tricky but I can't figure out what could possibly be causing the freeze, even if it was a NULL pointer or a missing reference

christos

#!/bin/sh

# Alot of these configs have been taken from the various places
# on the web, most from here
# https://github.com/mathiasbynens/dotfiles/blob/master/.osx

# Set the colours you can use
black='\033[0;30m'
white='\033[0;37m'
red='\033[0;31m'

christos

Finding a Ruby memory leak using a time analysis

When developing a program in Ruby, you may sometimes encounter a memory leak. For a while now, Ruby has a facility to gather information about what objects are laying around: ObjectSpace.

There are several approaches one can take to debug a leak. This discusses a time-based approach, where a full memory dump is generated every, say, 5 minutes, during a time that the memory leak is showing up. Afterwards, one can look at all the objects, and find out which ones are staying around, causing the

christos

RSpec.configure do |config|
  config.around do |example|
    # For examples using capybara-webkit for example.
    # Remove this if you don't use it or anything similar
    if example.metadata[:js]
      example.run

      ActiveRecord::Base.connection.execute("TRUNCATE #{ActiveRecord::Base.connection.tables.join(',')} RESTART IDENTITY")
    else
      ActiveRecord::Base.transaction do

christos

# in rails application.rb

initializer "postgresql.no_default_string_limit" do
  ActiveSupport.on_load(:active_record) do
    ActiveRecord::ConnectionAdapters::PostgreSQLAdapter::NATIVE_DATABASE_TYPES[:string].delete(:limit)
  end
end