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exAspArk / README.md
Last active August 29, 2015 14:04

Commands examples

If the namespace is not used then the commands will perform on top of the default database.

  bundle exec rake db:create
  bundle exec rake db:migrate

By using the namespace we are going to use all the configuration for our alternate DB.

@exAspArk
exAspArk / wait_steps.rb
Last active August 29, 2015 14:06 — forked from jnicklas/wait_steps.rb
require "timeout"
module WaitSteps
extend RSpec::Matchers::DSL
matcher :become_true do
match do |block|
begin
Timeout.timeout(Capybara.default_wait_time) do
sleep(0.1) until value = block.call
@exAspArk
exAspArk / gist:d81e5d7b6ad1bdd3bcf6
Created October 31, 2014 16:50
Immutable deep hash merge (ruby)
def deep_merge(hash1, hash2)
result = hash1.dup
hash2.keys.each do |key|
if hash2[key].is_a?(Hash) && hash1[key].is_a?(Hash)
result[key] = deep_merge(hash1[key], hash2[key])
else
result[key] = hash2[key]
end
end
@exAspArk
exAspArk / hacks.rb
Last active August 29, 2015 14:08 — forked from conf/monkey_patches.rb
Get rid of TZInfo::AmbiguousTime exception
# config/initializers/hacks.rb
Dir[Rails.root.join("lib/hacks/**/*.rb")].each { |file| require file }
@exAspArk
exAspArk / state_machine.rb
Last active February 22, 2016 22:28
HACK StateMachine gem to make it work with ActiveRecord 4.2
# HACK to enable using protected methods from Rails 4.2 and initial states as default attributes for ActiveRecord
module StateMachine
module Integrations
module ActiveModel
public :around_validation
end
module ActiveRecord
public :around_save
@exAspArk
exAspArk / friday_deploy_cap2.rb
Last active November 14, 2020 23:13
Friday deploy script for Capistrano
# Capistrano 2
before "deploy", "friday:good_luck"
namespace :friday do
friday_jumper = %{
┓┏┓┏┓┃
┛┗┛┗┛┃⟍ ○⟋
┓┏┓┏┓┃ ∕ Friday
┛┗┛┗┛┃ノ)
@exAspArk
exAspArk / ruby_heart_print.rb
Last active August 29, 2015 14:15
Prints heart with ruby
ruby_print = ->(a, b = 28, c = 1) { puts ("ruby" * a).center(b) * c } ; [[2, 14, 2], [3, 14, 2], 7, 7, 7, 6, 5, 4, 3, 2, 1].map { |i| ruby_print.call(*i) }
rubyruby rubyruby
rubyrubyruby rubyrubyruby
rubyrubyrubyrubyrubyrubyruby
rubyrubyrubyrubyrubyrubyruby
rubyrubyrubyrubyrubyrubyruby
rubyrubyrubyrubyrubyruby
rubyrubyrubyrubyruby
rubyrubyrubyruby
@exAspArk
exAspArk / bench_rails_memory_usage.rb
Last active August 29, 2015 14:16 — forked from brianhempel/bench_rails_memory_usage.rb
require "net/http"
def start_server
# Remove the X to enable the parameters for tuning.
# These are the default values as of Ruby 2.2.0.
@child = spawn(<<-EOC.split.join(" "))
XRUBY_GC_HEAP_FREE_SLOTS=4096
XRUBY_GC_HEAP_INIT_SLOTS=10000
XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0
@exAspArk
exAspArk / gist:c325bb9a75dcda5c8212
Last active July 21, 2022 08:46
Elasticsearch: calculating user sessions with Map/Reduce (Ruby)
# The same algorithm which is used in Google Analytics (https://support.google.com/analytics/answer/2731565?hl=en):
# Time-based expiry (including end of day):
# - After 30 minutes of inactivity
# - At midnight
# Enable dynamic scripting for Groovy (https://www.elastic.co/guide/en/elasticsearch/reference/current/modules-scripting.html#_enabling_dynamic_scripting)
# ! WARNING: please read about security first
# Usage:
#
@exAspArk
exAspArk / gist:42bdb62751a9300ee6d7
Created December 21, 2015 09:42
Screen / Tmux (in iTerm 2)
ssh login@server.example.com -t "screen -DR session_name"
tmux -CC attach -t session_name || tmux -CC new -s session_name