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# Rails production setup via SQLite3 made durable by https://litestream.io/ 
# Copy this to Dockerfile on a fresh rails app. Deploy to fly.io or any other container engine. 
#
#  try locally: docker build . -t rails && docker run -p3000:3000 -it rails
#
#  in production you might want to map /data to somewhere on the host, 
#  but you don't have to!
# 
FROM ruby:3.0.2

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# frozen_string_literal: true

source 'https://rubygems.org'

gem 'activesupport'
gem 'minitest'
gem 'minitest-reporters', '>= 0.5.0'
gem 'rr'
gem 'rubocop'

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#!/bin/sh
# if you're using ZSH, change the shebang above to "#!/bin/zsh -i"

if [ ${#} -ne 2 ]; then
  echo >&2 Usage: $(basename ${0}) old-version new-version
  exit 1
fi

home_path=$(cd ~; pwd -P)
old_version=${1}

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class Pen
  include Comparable
  attr :serialNumber, :length

  def initialize(serialNumber, length)
    @serialNumber = serialNumber
    @length = length
  end

  def to_s

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import java.util.ArrayList;
import java.util.Collections;

public class Pen implements Comparable<Pen> {

  private String serialNumber;
  private int length;

  public Pen(String serialNumber, int length) {
    this.serialNumber = serialNumber;

jimytc

# Regular way
(1..1_000_000_000).select(&:even?)
                  .map { |i| i**2 }
                  .first(10)

# Lazy way
(1..1_000_000_000).lazy
                  .select(&:even?)
                  .map { |i| i**2 }
                  .first(10)

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ActiveRecord::Schema.define do
  create_table :posts do |table|
    table.string :title
    table.string :content
  end
end

class Post < ActiveRecord::Base
end

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irb(main):023:0> uri = URI('http://www.google.com')
=> #<URI::HTTP http://www.google.com>
irb(main):059:0> Net::HTTP.get(uri)
D, [2018-08-13T22:33:30.030400 #19738] DEBUG -- : [httplog] Connecting: www.google.com:80
D, [2018-08-13T22:33:30.055285 #19738] DEBUG -- : [httplog] Sending: GET http://www.google.com:80/
D, [2018-08-13T22:33:30.055377 #19738] DEBUG -- : [httplog] Header: accept-encoding: gzip;q=1.0,deflate;q=0.6,identity;q=0.3
D, [2018-08-13T22:33:30.055412 #19738] DEBUG -- : [httplog] Header: accept: */*
D, [2018-08-13T22:33:30.055579 #19738] DEBUG -- : [httplog] Header: user-agent: Ruby
D, [2018-08-13T22:33:30.055605 #19738] DEBUG -- : [httplog] Header: host: www.google.com
D, [2018-08-13T22:33:30.055646 #19738] DEBUG -- : [httplog] Data:

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# Configure HttpLog to capture the detail we want to know.

HttpLog.configure do |config|

  # Enable or disable all logging
  config.enabled = true

  # You can assign a different logger
  config.logger = Logger.new($stdout)

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# Install the gem
$ bundle install