start a ruby version of aws-ha-release

- use aruba to test command line options
  - use rspec to unit test

.gitignore

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 # OS generated files #
 ######################
-.DS_Store
+.DS_Store
+tmp

Gemfile

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+source 'https://rubygems.org'
+
+gem 'aws-sdk'
+gem 'trollop'
+gem 'rspec'
+gem 'aruba'

Gemfile.lock

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+GEM
+  remote: https://rubygems.org/
+  specs:
+    aruba (0.5.3)
+      childprocess (>= 0.3.6)
+      cucumber (>= 1.1.1)
+      rspec-expectations (>= 2.7.0)
+    aws-sdk (1.8.5)
+      json (~> 1.4)
+      nokogiri (>= 1.4.4)
+      uuidtools (~> 2.1)
+    builder (3.2.1)
+    childprocess (0.3.9)
+      ffi (~> 1.0, >= 1.0.11)
+    cucumber (1.3.2)
+      builder (>= 2.1.2)
+      diff-lcs (>= 1.1.3)
+      gherkin (~> 2.12.0)
+      multi_json (~> 1.3)
+    diff-lcs (1.1.3)
+    ffi (1.8.1)
+    gherkin (2.12.0)
+      multi_json (~> 1.3)
+    json (1.7.7)
+    multi_json (1.7.4)
+    nokogiri (1.5.9)
+    rspec (2.12.0)
+      rspec-core (~> 2.12.0)
+      rspec-expectations (~> 2.12.0)
+      rspec-mocks (~> 2.12.0)
+    rspec-core (2.12.2)
+    rspec-expectations (2.12.1)
+      diff-lcs (~> 1.1.3)
+    rspec-mocks (2.12.2)
+    trollop (2.0)
+    uuidtools (2.1.3)
+
+PLATFORMS
+  ruby
+
+DEPENDENCIES
+  aruba
+  aws-sdk
+  rspec
+  trollop

aws-ha-release/aws-ha-release.rb

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+#!/usr/bin/env ruby
+
+begin
+  require 'aws-sdk'
+  require 'trollop'
+rescue LoadError => e
+  puts "The #{e.message.split('-').last.strip} gem must be installed."
+  raise
+end
+
+opts = Trollop::options do
+  opt :as_group_name, 'AutoScaling Group Name', type: :string, short: '-a'
+  opt :region, 'Region', type: :string, short: '-r'
+  opt :elb_timeout, 'ELB Timeout', type: :int, default: 60, short: '-t'
+  opt :inservice_time_allowed, 'InService Time Allowed', type: :int, default: 300, short: '-i'
+  opt :aws_access_key, 'AWS Access Key', type: :string, short: '-o'
+  opt :aws_secret_key, 'AWS Secret Key', type: :string, short: '-s'
+end
+
+Trollop::die :as_group_name, 'You must specify the AutoScaling Group Name: aws-ha-release.rb -a <group name>' unless opts[:as_group_name]
+Trollop::die :aws_access_key, 'If you specify the AWS Secret Key, you must also specify the Access Key with -o <key>.' if opts[:aws_secret_key] && opts[:aws_access_key].nil?
+Trollop::die :aws_secret_key, 'If you specify the AWS Access Key, you must also specify the Secret Key with -s <key>.' if opts[:aws_access_key] && opts[:aws_secret_key].nil?

features/aws-ha-release.feature

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+Feature: AWS High-Availibility Release
+  Scenario: Requires the autoscaling group name to be passed in
+    When I run `aws-ha-release.rb`
+    Then the output should contain "You must specify the AutoScaling Group Name: aws-ha-release.rb -a <group name>"
+    And the exit status should not be 0
+    When I run `aws-ha-release.rb -a test_group`
+    Then the exit status should be 0
+    When I run `aws-ha-release.rb --as-group-name test_group`
+    Then the exit status should be 0
+
+  Scenario: Optionally allows the user to specify an ELB timeout
+    When I run `aws-ha-release.rb -a test_group -t not_valid_input`
+    Then the exit status should not be 0
+    When I run `aws-ha-release.rb -a test_group -t 100`
+    Then the exit status should be 0
+    When I run `aws-ha-release.rb -a test_group --elb-timeout 100`
+    Then the exit status should be 0
+
+  Scenario: Optionally allows the user to specify a region
+    When I run `aws-ha-release.rb -a test_group -r`
+    Then the exit status should not be 0
+    When I run `aws-ha-release.rb -a test_group -r test_region`
+    Then the exit status should be 0
+    When I run `aws-ha-release.rb -a test_group --region test_region`
+    Then the exit status should be 0
+
+  Scenario: Optionally allows the user to specify an inservice time allowed
+    When I run `aws-ha-release.rb -a test_group -i not_valid_input`
+    Then the exit status should not be 0
+    When I run `aws-ha-release.rb -a test_group -i 100`
+    Then the exit status should be 0
+    When I run `aws-ha-release.rb -a test_group --inservice-time-allowed 100`
+    Then the exit status should be 0
+
+  Scenario: Optionally allows the user to pass in the aws_access_key and aws_secret_key
+    When I run `aws-ha-release.rb -a test_group -o testaccesskey`
+    Then the exit status should not be 0
+    When I run `aws-ha-release.rb -a test_group -o testaccesskey -s testsecretkey`
+    Then the exit status should be 0
+    When I run `aws-ha-release.rb -a test_group --aws-access-key testaccesskey --aws-secret-key testsecretkey`
+    Then the exit status should be 0

features/support/env.rb

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+require 'aruba/cucumber'
+
+ENV['PATH'] = "#{Dir.pwd}/aws-ha-release#{File::PATH_SEPARATOR}#{ENV['PATH']}"

spec/aws-ha-release/aws-ha-release_spec.rb

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+require 'rspec'
+require File.expand_path('aws-ha-release/aws-ha-release.rb')
+
+describe 'aws-ha-release' do
+end