My RubyGems Toolbox

An introduction to RubyGems and Bundler. I've included a few of my favourite gems too. Goes best with my companion piece: http://www.knicklabs.com/my-rubygems-toolbox-part-1/

Transcript

1. My RubyGems Toolbox Presented by Nickolas Kenyeres
2. A gem is a valuable nugget of reusable code
3. A gem is easy to install gem install sinatra
4. Many gems live on RubyGems.org & They wait anxiously for you to download them
5. Gems install to your Ruby $LOADPATH
6. A gem just needs to be required require sinatra get '/hi' do "Hello World!" end
7. –Confucius “Above all else, a gem wants to be depended on”
8. BUNDLER
9. Tell Bundler what you need source 'https://rubygems.org' gem 'sinatra', '~> 1.4.6' gem 'sqlite3'
10. Then tell Bundler what to do bundle install
11. BUNDLER IS AN OPTIMIST
12. Bundler will give you version 2.0 if it exists
 Bundler knows no upper bound gem 'sinatra', '>= 1.4’
13. BUNDLER IS A PESSIMIST
14. Bundler will give you less than version 2.0
 2.0 is out of bounds gem 'sinatra', '~> 1.4’
15. I AM A BIGGER PESSIMIST
16. Bundler will give you less than version 1.5.0
 1.5.0 is out of bounds gem 'sinatra', '~> 1.4.6’
17. Bundler works with Git gem 'sinatra', git: https://github.com/sinatra/sinatra.git, branch: '2.2.0-alpha'
18. Bundler does Groups gem 'rspec', group: [:development, :test] group :production do gem 'unicorn' end
19. Ruby gems are often best in class Documentation Test coverage Semantic versioning Idiomatic Configurable
20. Sidekiq
 Background jobs
 
 https://github.com/mperham/sidekiq
21. Roadie
 Inline styles in HTML email
 
 https://github.com/Mange/roadie
22. Carrierwave
 File uploads made easy
 
 https://github.com/carrierwaveuploader/carrierwave
23. Devise & Pundit
 Authentication & Authorization
 
 https://github.com/plataformatec/devise
 https://github.com/elabs/pundit
24. Nickolas Kenyeres | http://www.knicklabs.com