courtenay

# RAILS 2.3.15
#
# Since <tag type="yaml"> was removed from rails' xml parsing, 
# but not from its to_xml method, rails can't talk to an API 
# generated by rails, if you have serialized attributes.

# This can be put in config/initializers and you should probably 
# upgrade to rails 3 already. Ugh.

# Three parts:

x0bandeira

# http://redis.io/commands/rpoplpush

module Resque
  def self.move_queue(source, destination)
    r = Resque.redis
    r.llen("queue:#{source}").times do
      r.rpoplpush("queue:#{source}", "queue:#{destination}")
    end
  end
end

wacko

ruby -e 'z=0x1F551;->(c,&b){loop{c.each(&b)}}.(11.times.map{|i|[z+i].pack("U")}){|m|print "#{"\b"*3}#{m}  ";sleep 0.1}'

spalenza

#!/usr/bin/env ruby

# .git/hooks/pre-commit
# Git pre-commit hook that catches errors that I commonly make.
#
# To intentionally ignore the hook (i.e., when adding an alert call), commit
# from the command line with "--no-verify"
#
# Loosely based on Henrik Nyh's <http://henrik.nyh.se> work (2011-10-08)
# under the MIT License.

shadowmaru

• Alda Rocha: Mulheres que falam e palestram
• Alex Braha Stoll: Ruby + Rust
• Anderson Dias: 3B de jobs no Sidekiq
• Andre Luis Anastacio: Effective Rails Instrumentation
• Artur Caliendo Prado: Grafana, StatsD e InfluxDB
• Bruno Alves: Arquitetura de micro serviços
• Camila Campos: Como não escrever seus testes
• Charlotte Lorelei Oliveira: [Tolerância a falhas com supervisor trees em Elixir](https://docs.google.com/presentation/d/e/2PACX-1vT8eAiVAgK5_aHBduO-P2Cb1QbeaX4DyvHAsDbgfKOt0lDVBEl4Qm_KeCx7mNGn7PS16gMgZ-ffLkrO/pub?start=false&loop=fa

jodosha

source 'https://rubygems.org'

gem 'rake'
gem 'lotus-router'
gem 'lotus-controller'
gem 'lotus-view'

group :test do
  gem 'rspec'
  gem 'capybara'

jswanner

desc 'rolls back migrations in current branch not present in other'
task :rollback_branch_migrations, [:other_branch] do |t, args|
  load "#{Dir.pwd}/Rakefile"

  branch_migrations = BranchMigrations.new(args.other_branch)

  puts ['Rollback the following migrations', branch_migrations, 'y,n? ']
  next if %w[no n NO N].include?(STDIN.gets.chomp)

  Rake::Task['environment'].invoke

masonforest

Installing a Gem on Heroku from a Private GitHub Repo

Sometimes you want to use a gem on Heroku that is in a private repository on GitHub.

Using git over http you can authenticate to GitHub using basic authentication. However, we don't want to embed usernames and passwords in Gemfiles. Instead, we can use authentication tokens.

1. Get an OAuth Token from GitHub

---

First you will need to get an OAuth Token from GitHub using your own username and "note"

tomstuart

>> IF = -> b { b }
=> #<Proc:0x007fb4e4049cc8 (lambda)>

>> LEFT = -> p { p[-> x { -> y { x } } ] }
=> #<Proc:0x007fb4e403d680 (lambda)>

>> RIGHT = -> p { p[-> x { -> y { y } } ] }
=> #<Proc:0x007fb4e4028ff0 (lambda)>

>> IS_EMPTY = LEFT

serradura

class Mecha
  private attr_accessor(:states_map, :callbacks, :transitions, :current_state)

  public :transitions, :current_state

  def initialize(initial_state:, transitions:)
    self.states_map = transitions.parameters.select { |(type, _)| type == :keyreq }.to_h { [_2, _2] }

    self.callbacks = Hash.new { |hash, key| hash[key] = [] }
    self.transitions = transitions.call(**states_map).transform_values(&:freeze).freeze