bmarini

app.get '/riders', (req, res) ->
  redis.smembers 'riders', (err, replies) ->
    results = []

    build_json = (rider) ->
      redis.hgetall rider, (err, reply) ->
        results.push reply
        res.json(results, 200) if results.length == replies.length

    build_json rider for rider in replies

bmarini

onscreen()
{
  if [ -z $1 ]; then
    if [ -f $HOME/.onscreen ]; then
      cd `cat $HOME/.onscreen`
    else
      echo "You must set an onscreen destination"
      echo "cd into a directory and run 'onscreen set'"
    fi
  fi

bmarini

class User < Struct.new(:name, :phone, :email)
end

# ---------------------------------------------------------------------------
# Extend on demand
# + no dependency on User class, could be reusable
# + composable
# - cannot unextend user object once extended, but this object could be short
#   lived
# ---------------------------------------------------------------------------

bmarini

class ProgressBar
  def initialize(units=60)
    @units = units.to_f
  end

  def print(completed, total)
    norm     = 1.0 / (total / @units)
    progress = (completed * norm).ceil
    pending  = @units - progress
    Kernel.print "[#{'=' * progress }#{' ' * ( pending )}] #{percentage(completed, total)}%\r"

bmarini

mkdir ~/tmp_mongo_data1
mkdir ~/tmp_mongo_data2
mkdir ~/tmp_mongo_data3

# In separate terminals
mongod --dbpath ~/tmp_mongo_data1 --port 5000 --replSet ben
mongod --dbpath ~/tmp_mongo_data2 --port 5001 --replSet ben
mongod --dbpath ~/tmp_mongo_data3 --port 5002 --replSet ben

# Then setup replication in a 4th terminal

bmarini

# https://www.varnish-cache.org/docs/2.1/tutorial/vcl.html
# https://www.varnish-cache.org/trac/wiki/VCLExamples

# Summary
# 1. Varnish will poll the backend at /health_check to make sure it is
#    healthy. If the backend goes down, varnish will server stale content
#    from the cache for up to 1 hour.
# 2. Varnish will pass X-Forwarded-For headers through to the backend
# 3. Varnish will remove cookies from urls that match static content file
#    extensions (jpg, gif, ...)

bmarini

require 'ruby-prof'
# RubyProf.measure_mode = RubyProf::PROCESS_TIME
# RubyProf.measure_mode = RubyProf::WALL_TIME
# RubyProf.measure_mode = RubyProf::CPU_TIME
# RubyProf.measure_mode = RubyProf::ALLOCATIONS
# RubyProf.measure_mode = RubyProf::MEMORY
# RubyProf.measure_mode = RubyProf::GC_RUNS
# RubyProf.measure_mode = RubyProf::GC_TIME

result = RubyProf.profile do

bmarini

desc 'Build the manual'
task :man do
  require 'forker/version'

  ENV['RONN_MANUAL'] = "Forker Manual"
  ENV['RONN_ORGANIZATION'] = "Forker #{Forker::VERSION}"

  sh "ronn -w -s toc -r5 --markdown man/*.ronn"
end

bmarini

# Start a job from an SSH session that will continue to run after logging out
nohup ./myprogram > foo.out 2> foo.err < /dev/null &

# Clear memcached
echo flush_all | nc localhost 11211

bmarini

require 'rubygems'
require 'bundler/setup'
require 'eventmachine'
require 'httparty'

# Serial Processing:
# results = %[realtime forker].collect do |path|
#   HTTParty.get "http://github.com/api/v2/json/repos/show/#{path}"
# end
#