tmm1

# collect information about a running process
# ruby debug.rb <pid>

begin
  raise ArgumentError unless pid = ARGV[0]
  pid = pid.to_i
  raise ArgumentError unless pid > 0
  Process.kill(0,pid)
rescue TypeError, ArgumentError
  raise 'pid required'

grantmichaels

require 'dalton/strategies/skroutz'
require 'dalton/strategies/facebook'
require 'dalton/strategies/openid' # yahoo, #google
require 'dalton/strategies/twitter'

# Setup OpenId file storage, don't change the storage engine!
require 'openid/store/filesystem'
Rails.configuration.middleware.use(Rack::OpenID,
  OpenID::Store::Filesystem.new(Rails.root + 'tmp/openid'))

vitaliel

#!/usr/bin/env ruby

# Copy path from rspect stack trace and execute it
# spm ./spec/models/space_spec.rb:867

path = ARGV[0]

file, number, _ = path.split ':'
number = number.to_i
line = number > 0 ? " -l #{number}" : ""

qichunren

require 'socket'
socket = UDPSocket.new
socket.send("I am ok.", 0, 'localhost', 1234)
text, sender = socket.recvfrom(16)
socket.close

zenkay

Ruby, RVM and Mountain Lion

Key problems

Mountain Lion (10.8) has three main difference compared to Lion (10.7):

• XCode 4.4 does not install Command Line Tools by default
• X11 isn't available anymore
• The installed version of OpenSSL has some bugs

How to work around

linjunpop

Rails flash messages with AJAX requests

original: http://stackoverflow.com/a/10167659/656428

KartikTalwar

The fastest remote directory rsync over ssh archival I can muster (40MB/s over 1gb NICs)

This creates an archive that does the following:

rsync (Everyone seems to like -z, but it is much slower for me)

• a: archive mode - rescursive, preserves owner, preserves permissions, preserves modification times, preserves group, copies symlinks as symlinks, preserves device files.
• H: preserves hard-links
• A: preserves ACLs

czarneckid

Zero downtime deploys with unicorn + nginx + runit + rvm + chef

Below are the actual files we use in one of our latest production applications at Agora Games to achieve zero downtime deploys with unicorn. You've probably already read the GitHub blog post on Unicorn and would like to try zero downtime deploys for your application. I hope these files and notes help. I am happy to update these files or these notes if there are comments/questions. YMMV (of course).

Other application notes:

• Our application uses MongoDB, so we don't have database migrations to worry about as with MySQL or postgresql. That does not mean that we won't have to worry about issues with the database with indexes being built in MongoDB or what have you.
• We use capistrano for deployment.

Salient points for each file:

leifg

file_to_disk = './tmp/large_disk.vdi'

Vagrant::Config.run do |config|
  config.vm.box = 'base'

  config.vm.customize ['createhd', '--filename', file_to_disk, '--size', 500 * 1024]
  config.vm.customize ['storageattach', :id, '--storagectl', 'SATA Controller', '--port', 1, '--device', 0, '--type', 'hdd', '--medium', file_to_disk]
end

brendanstennett

guard :rspec, cmd: 'zeus rspec --color' do
  watch(%r{^spec/.+_spec\.rb$})
  watch(%r{^lib/(.+)\.rb$})     { |m| "spec/lib/#{m[1]}_spec.rb" }
  watch('spec/spec_helper.rb')  { "spec" }
 
  # Rails example
  watch(%r{^app/(.+)\.rb$})                           { |m| "spec/#{m[1]}_spec.rb" }
  watch(%r{^app/(.*)(\.erb|\.haml)$})                 { |m| "spec/#{m[1]}#{m[2]}_spec.rb" }
  watch(%r{^app/controllers/(.+)_(controller)\.rb$})  { |m| ["spec/routing/#{m[1]}_routing_spec.rb", "spec/#{m[2]}s/#{m[1]}_#{m[2]}_spec.rb", "spec/acceptance/#{m[1]}_spec.rb"] }
  watch(%r{^spec/support/(.+)\.rb$})                  { "spec" }