Epictetus

def quicksort(seq)
  if seq.size == 0
    return seq
  end
  pivot = seq[0]
  right = Array.new
  left = Array.new
  for i in 1..seq.size-1
    if seq[i] <= pivot
      left.push(seq[i])

Epictetus

sapporo rubykaigi 2012

1st day

• 13:30-13:45 Opening
• 13:45-14:15 Sponsor session 1 Ayumu AIZAWA "Heroku"
• 14:30-15:00 Sponsor session 2 Kazunori Hirano "Microsoft's Openness Vision and Strategy. MS <3 (Loves) Ruby and Linux!"
• 15:00-15:30 Sponsor session 3 Kenichi TAKAHASHI "Social Coding, It's Not Unusual in ESM"
• 15:45-16:15 Sponsor session 4 Masahiro Ihara "How to create COOKPAD"
• 16:30-17:00 Yuichi Tateno (@hotchpotch / id:secondlife) "Technology that drives fun cooking 2012" Gosuke Miyashita

Epictetus

##GitHubとHerokuに両対応させるには

1. herokuでapp:create

    $ heroku apps:create p120902-jishiha-search
    Creating p120905-rss-process-test... done, stack is cedar
    http://p120905-rss-process-test.herokuapp.com/ | [email protected]:p120905-rss-process-test.git
   

2. $ git clone https://github.com/weed/p120902-jishiha-search.git

3. 作業

Epictetus

namespace :heroku do
  desc "PostgreSQL database backups from Heroku to Amazon S3"
  task :backup => :environment do
    begin
      require 'right_aws'
      puts "[#{Time.now}] heroku:backup started"
      name = "#{ENV['APP_NAME']}-#{Time.now.strftime('%Y-%m-%d-%H%M%S')}.dump"
      db = ENV['DATABASE_URL'].match(/postgres:\/\/([^:]+):([^@]+)@([^\/]+)\/(.+)/)
      system "PGPASSWORD=#{db[2]} pg_dump -Fc --username=#{db[1]} --host=#{db[3]} #{db[4]} > tmp/#{name}"
      s3 = RightAws::S3.new(ENV['s3_access_key_id'], ENV['s3_secret_access_key'])

Epictetus

# Heroku S3 Database backup task
#   by Nick Merwin (Lemur Heavy Industries) 10.08.09
#   * dumps db to yaml, gzip's and sends to S3
# 
# Setup:
# 1) replace APP_NAME and BACKUP_BUCKET with your info
# 2) add config/s3.yml like so (same as Paperclip's): 
#    production:
#      access_key_id: ...
#      secret_access_key: ...

Epictetus

desc "This task is called by the Heroku cron add-on"
task :cron => :environment do
  Rake::Task['heroku:backup'].invoke
end

Epictetus

require "heroku"
require "heroku/command"
require 'aws/s3'

namespace :backups do
  desc "create a pg_dump and send to S3"
  task :backup => :environment do
  
    include RRBOUtil

Epictetus

task :cron => :environment do

  # removes day old sessions from the database
  puts "====> Removing stale sessions from the database…”
  Rake::Task['db:sessions:clear_stale'].execute
  
  # run the following tasks on sunday
  if Time.now.wday == 0
    # backs up the database to S3
    puts "====> Backing up database to S3…”

Epictetus

# This gist is documented at http://ctoinsights.wordpress.com/2011/11/26/running-heroku-workers-only-when-required/
class HerokuManager
  def heroku
    @heroku ||= Heroku::Client.new(HEROKU_USERNAME, HEROKU_PASSWORD)
  end

  def stack
    heroku.list_stacks(HEROKU_APP_NAME).inject("") do |current,stack| 
      stack["current"] ? stack["name"] : current
    end

Epictetus

# Scale workers on Heroku automatically as your Resque queue grows.
# Mixin the +Scaling+ module into your models to get the behavior.
#
#   class MyModel < ActiveRecord::Base
#     extend HerokuAutoScaler::AutoScaling
#   end
#
# And configure in an initializer +config/initializers/heroku_workers.rb+:
#
#   HerokuAutoScaler.configure do