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Environment info

• Ruby 2.1.2
• 2.8Ghz Core i7 / 2 cores - 4 hardware threads / 8G Ram

Unicorn 4.8.3

Using four workers

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task :ask_production_confirmation do
  set(:confirmed) do
    puts <<-WARN

    ========================================================================

      WARNING: You're about to perform actions on production server(s)
      Please confirm that all your intentions are kind and friendly

    ========================================================================

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# decrypt Rails4 cookie simple algo

cookie = request.cookie_jar[Rails.application.config.session_options[:key]]
cookie = CGI.unescape(cookie)
config = Rails.application.config

encrypted_cookie_salt = config.action_dispatch.encrypted_cookie_salt               # "encrypted cookie" by default
encrypted_signed_cookie_salt = config.action_dispatch.encrypted_signed_cookie_salt # "signed encrypted cookie" by default

key_generator = ActiveSupport::KeyGenerator.new(config.secret_key_base, iterations: 1000)

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jemalloc

LD_PRELOAD=/usr/local/Cellar/jemalloc/3.6.0/lib/libjemalloc.dylib unicorn -c config/unicorn.rb -E production -p 3000

• https://gist.github.com/SamSaffron/9162366

• https://bugs.ruby-lang.org/issues/9113

• http://samsaffron.com/archive/2014/04/08/ruby-2-1-garbage-collection-ready-for-production

  LD_PRELOAD=/home/sam/Source/jemalloc-3.5.0/lib/libjemalloc.so RUBY_GC_HEAP_OLDOBJECT_LIMIT_FACTOR=0.9 ruby stress.rb

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• The Catcher in the Rye, J.D. Salinger: It shows you what a teenager thinks. His fears, what does he loves and how can they react.

• On the Road, Jack Kerouac: The author can make you feel that you are traveling on the routes of United States in late 40s. He can make you feel free.

• High Fidelity, Nick Hornby: I love music and this is a perfect book for music lovers. In the end, is a book about love, but in the middle of it is full of songs.

• Ham on Rye, Charles Bukowski: Hank is one of my favorites writers (his poetry is amazing) and this is an autobiography. Every anecdote makes us understand why Bukowski thinks as he does.

• A Moveable Feast, Ernest Hemingway: This book narrates Hemingway’s life in París in the 20s as an expatriate writer. You can read it 30 times.

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How to fix the Reference has invalid format in git repos due to Google Drive

find . -type f -name "* (1)*" -exec rm -f {} \;
awk '!/conflicted/' .git/packed-refs > temp && mv temp .git/packed-refs

Note: those two lines are destructive commands if you first want to see what they do try:

find . -type f -name "* (1)*"

awk '!/conflicted/' .git/packed-refs

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#        ___         ___         ___                   ___         ___         ___         ___         ___     
#       /\  \       /\  \       /\__\                 /\  \       /\  \       /\  \       /\__\       |\__\    
#      /::\  \     /::\  \     /::|  |               /::\  \     /::\  \     /::\  \     /:/  /       |:|  |   
#     /:/\:\  \   /:/\:\  \   /:|:|  |              /:/\:\  \   /:/\:\  \   /:/\:\  \   /:/  /        |:|  |   
#    /:/  \:\  \ /::\~\:\  \ /:/|:|__|__           /::\~\:\  \ /::\~\:\  \ /:/  \:\__\ /:/  /  ___    |:|__|__ 
#   /:/__/_\:\__/:/\:\ \:\__/:/ |::::\__\         /:/\:\ \:\__/:/\:\ \:\__/:/__/ \:|__/:/__/  /\______/::::\__\
#   \:\  /\ \/__\:\~\:\ \/__\/__/~~/:/  /         \/_|::\/:/  \:\~\:\ \/__\:\  \ /:/  \:\  \ /:/  \::::/~~/~   
#    \:\ \:\__\  \:\ \:\__\       /:/  /             |:|::/  / \:\ \:\__\  \:\  /:/  / \:\  /:/  / ~~|:|~~|    
#     \:\/:/  /   \:\ \/__/      /:/  /              |:|\/__/   \:\ \/__/   \:\/:/  /   \:\/:/  /    |:|  |    
#      \::/  /  

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$(function() {
  if( /Android|webOS|iPhone|iPad|iPod|BlackBerry|IEMobile|Opera Mini/i.test(navigator.userAgent) ) {
    $("meta[name='viewport']").attr('user-scalable', 'yes');
  }
});

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Simple steps to install dynamo and its deps on OSX

We need to have a fresh copy Elixi that works with Erland R17

brew install erlang --devel

brew install elixir --HEAD

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Some small heroku tips

heroku pgbackups:capture --expire
curl -o latest.dump `heroku pgbackups:url`

pg_restore --verbose --clean --no-acl --no-owner -h localhost -U myuser -d mydb latest.dump