RVM

Installation

• download RVM installer
• edit bash_profile

[[ -s  "$HOME/.rvm/scripts/rvm" ]] && source "$HOME/.rvm/scripts/rvm"  # Load RVM into a shell session *as a function*

• reload shell
• type rvm | head -1
• should show rvm is a function

Installation on mac mini 10.8

• to download&install RVM installer to /Users/aleung/.rvm/ on mac mini
• curl -L https://get.rvm.io | bash

• to set up PATH in shell
• source /Users/aleung00c/.rvm/scripts/rvm

More Commands

• rvm -v
• rvm list
• rvm list known
• rvm info
• rvm gemdir
• switch to gem directory for current ruby
• rvm gemdir system
• switch to system gem directory
• rvm gemdir system user
• rvm use system
• to undo rvm environment changes

Ruby 2.0.0 / Rails 4.0.0 Installation

• rvm get stable --auto-dotfiles
• rvm install 2.0.0
• rvm use 2.0.0
• rvm gemset create rails4.0.0
• rvm gemset use rails4.0.0
• gem install rails -v 4.0.0

 Ruby 1.9.3 Installation

• rvm install ruby-1.9.3-p327

Ruby 1.9.2 / Rails 3.0.9 Installation

• rvm install 1.9.2
• rvm --default use 1.9.2
• ruby -v
• which ruby
• gem install rails -v 3.0.9

Ruby 1.8.7 / Rails 3.0.0 Installation

• rvm install 1.8.7
• rvm gemset create newproject
• rvm 1.8.7@newproject
• rvm @global do gem uninstall bundler
• gem install bundler -v '~>1.0.0'
• we needed to remove bundler 1.1.3 in global gemset, in order to install bundler 1.0.0 specified in project Gemfile

Ruby 1.8.6 / Rails 2.1.1 Installation

• rvm install 1.8.6
• rvm gemset create legacy-gemset
• rvm 1.8.6@legacy-gemset
• gem install rails --version 2.1.1
• gem install sqlite3-ruby --version 1.2.4
• gem install ruby-net-ldap --version 0.0.4

Additional Gemset Creation

• rvm gemset create experiment-gemset
• rvm 1.9.2@experiment-gemset
• gem install fastercsv
• rvm gemset copy 1.9.2 1.9.2@experiment-gemset
• rvm gemset use experiment-gemset

Rails 3.0.9 App Creation

• rvm use 1.9.2
• rails -v
• to verify and confirm we are using rails version 3.0.9 as default gemset
• cd ~/ruby1.9.2/rails_projects/
• rails new new-rails-app

Rails 2.1.1 App Creation

• rvm use 1.8.6
• rails -v
• to verify and confirm that we are using rails version 2.1.1 as default gemset
• cd ~/ruby1.8.6/rails_projects/
• rails new-rails-app
• cd new-rails-app
• rails s

RSpec (Ruby 1.9.2 / Rails 3.0.9)

• gem install rspec-rails
• cd ~/ruby1.9.2/rails_projects/new-rails-app
• add to Gemfile

group :test, :development do
  gem "rspec-rails", "~> 2.0"
end

• rails generate rspec:install
• rails generate model PricingPlan sku:string pricing:string
• rake db:migrate RAILS_ENV=test
• rspec spec/models/pricing_plan_spec.rb

Experiment with new Savon

• rvm gemset create new_savon
• rvm gemset copy 1.9.2@production 1.9.2@new_savon
• rvm gemset use 1.9.2@new_savon
• gem list savon

*** LOCAL GEMS ***

savon (0.9.6)
savon_spec (0.1.6)

• view Gemfile.lock

    savon (0.9.6)
      akami (~> 1.0)
      builder (>= 2.1.2)
      gyoku (>= 0.4.0)
      httpi (~> 0.9)
      nokogiri (>= 1.4.0)
      nori (~> 1.0)
      wasabi (~> 2.0)

• bundle update savon 
• gem list savon

*** LOCAL GEMS ***

savon (1.1.0, 0.9.6)
savon_spec (0.1.6)

• view Gemfile.lock

    savon (1.1.0)
      akami (~> 1.2.0)
      builder (>= 2.1.2)
      gyoku (~> 0.4.5)
      httpi (~> 1.1.0)
      nokogiri (>= 1.4.0)
      nori (~> 1.1.0)
      wasabi (~> 2.5.0)

Rails 3.2

• rvm gemset create development_32
• rvm gemset use development_32
• bundle install

Rolify

• rvm gemset create rolify
• rvm gemset use rolify
• add to Gemfile

  gem 'rolify'

• bundle install
•