The document discusses using Ruby templates to speed up Ruby on Rails application creation. It provides an example of a simple Ruby file template that adds common gems, creates initializers, sets the default locale, runs generators, and more. The template can be used with the 'rails new' command to automatically configure a new Rails project.

1. Speed your app
creation with templates

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Simon Courtois
www.tinci.fr
happynoff
simonc

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Every new app!

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Add usual gems
Create initializers
Set default locale
Run generators

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A simple Ruby file

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rails new -m template.rb

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Add usual gems
Create initializers
Set default locale
Run generators

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gem 'bootstrap-sass','~> 3.3'

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gem_group :development do
gem 'better_errors'
end

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Add usual gems
Create initializers
Set default locale
Run generators

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initializer 'hello.rb',
'Hello = 42'

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initializer 'mustdown.rb', <<-CODE
Mustdown.configure do |config|
config.renderer_options = {
with_toc_data: true
}
end
CODE

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Add usual gems
Create initializers
Set default locale
Run generators

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insert_into_file
'config/application.rb',
"config.i18n.default_locale = :frn",
after: ":den"

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Add usual gems
Create initializers
Set default locale
Run generators

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after_bundle do
generate
'simple_form:install',
'--bootstrap'
end

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And it’s just Ruby!

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doing_admin = ask('Need admin?')
if doing_admin
gem 'rails_admin', '~> 0.6.7'
after_bundle do
generator ''
end
end

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Run commands

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run "wget ...
-O config/locales/devise.fr.yml"

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Use git

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after_bundle
do
git :init
git add: '.'
end

23. Learn more
guides.rubyonrails.org/
rails_application_templates.html

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Questions?

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Thanks!