Package:Ruby

Ruby

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Ruby is a programming language with its own package management system to extend the language.

Ruby Ruby's way

Rubygems is a package management system to extend the ruby language.

Gems are packaged in portage and those are good for production server application. ruby ruby's way is more friendly on the development of rails side. this will explain how to work with rubygems rather than fight it. Arch wiki outlines a similar method.

Emerge ruby & rubygems:

root # emerge ruby rubygems

Remove conflicting gems:

root # emerge -C dev-ruby/rake dev-ruby/racc dev-ruby/json dev-ruby/rdoc

Flush conflicting gems bad specs:

root # mv /usr/local/lib64/ruby/gems/2.1.0/specifications/ /usr/local/lib64/ruby/gems/2.1.0/specifications.backup

Fetch gems via rubygems:

root # gem install rdoc json rake racc

root # rubygems-update

update gem system:

root # update_rubygems
root # gem update --system
root # gem pristine --all

Now you're ready to use gem to manage gems.

To add gems to your path:

   $HOME/.bashrc - add gem bin directory to your path

PATH="$(ruby -rubygems -e 'puts Gem.user_dir')/bin:$PATH"

ruby on rails

root # gem install rails
root # rails new testproject
root # cd testproject
root # bundle install

puma

puma is a fast web server for ruby on rails.

To enable puma in your project:

   $HOME/testproject/Gemfile - add puma gem to your rails application

gem 'puma'

To pull in puma:

root # bundle install

   $HOME/testproject/config/puma.rb - puma configuration file

workers Integer(ENV['PUMA_WORKERS'] || 3)
threads Integer(ENV['MIN_THREADS']  || 1), Integer(ENV['MAX_THREADS'] || 16)

preload_app!

rackup      DefaultRackup
port        ENV['PORT']     || 3000
environment ENV['RACK_ENV'] || 'development'

on_worker_boot do
  # worker specific setup
  ActiveSupport.on_load(:active_record) do
    config = ActiveRecord::Base.configurations[Rails.env] ||
                Rails.application.config.database_configuration[Rails.env]
    config['pool'] = ENV['MAX_THREADS'] || 16
    ActiveRecord::Base.establish_connection(config)
  end
end

to start puma:

root # bundle exec puma

or if you added gems bin dir to your path

root # puma

a generic puma init script can be found here

https://gist.github.com/666threesixes666/d8bca7f67439763d3e94

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