Simple Rails app template to create a new app with Rspec, Steak, Devise and a few useful helpers

rails_remplate.rb

app_name = ARGV[0].humanize

# Remove unwanted files
remove_file "public/index.html"
remove_file "public/favicon.ico"
remove_file "public/images/rails.png"
remove_file "public/robots.txt"

# Add gems to Gemfile
append_to_file 'Gemfile', %Q{
gem 'jquery-rails'
gem 'devise'
gem 'dynamic_form'
gem 'will_paginate', '>= 3.0.beta'

group :development, :test do
  gem 'rspec',                    '>= 2.3.0'
  gem 'rspec-rails',              '>= 2.3.0'
  gem 'remarkable',               '>= 4.0.0.alpha4'
  gem 'remarkable_activerecord',  '>= 4.0.0.alpha4'
  gem 'machinist',                '~> 2.0.0.beta2'
  gem 'steak',                    '>= 1.1.0'
  gem 'capybara'
  gem 'delorean'
  gem 'faker'
  gem 'database_cleaner'
  gem 'ruby-debug'
end
}

# Install gems
run "bundle install"

# Replace stock README with just the app name
remove_file "README"
file "README", app_name

# Define generators in application.rb
inject_into_file 'config/application.rb', :before => "  end\nend" do
%Q{
    config.generators do |g|
      g.integration_tool :rspec
      g.test_framework :rspec
      g.helper false
    end
}
end

# Add :password_confirmation to config.filter_parameters
gsub_file 'config/application.rb', /:password/, ':password, :password_confirmation'

# Set default time zone to London
gsub_file 'config/application.rb', "# config.time_zone = 'Central Time (US & Canada)'", "config.time_zone = 'London'"

# Replace prototype with jQuery
generate "jquery:install", "--force"

# Don't use asset IDs in development
append_to_file 'config/environments/development.rb', "ENV['RAILS_ASSET_ID'] = ''"

# Install rspec & steak
generate "rspec:install"
generate "steak:install"

# Add remarkable and machinist to Rspec requires
inject_into_file "spec/spec_helper.rb", :after => "require 'rspec/rails'" do
%Q{
require 'remarkable/active_record'
require 'machinist/active_record'}
end

# Configure machinist and include devise test helpers
inject_into_file "spec/spec_helper.rb", :after => "  config.use_transactional_fixtures = true" do
%Q{
  config.before(:each) do
    Machinist.reset_before_test
  end
  
  config.include Devise::TestHelpers, :type => :controller}
end

# Stop machinist from caching objects
append_to_file "spec/spec_helper.rb", %Q{  
Machinist.configure do |config|
  config.cache_objects = false
end
}

# Devise install
if yes?("Would you like to install Devise and generate a Devise model now?")
  generate "devise:install"
  
  devise_model_name = ask("What should the Devise model be called? (Default: 'User')")
  devise_model_name = "User" if devise_model_name.blank?
  generate "devise", devise_model_name
  generate "devise:views"
end

# Create a couple of useful helpers in ApplicationHelper
inject_into_file 'app/helpers/application_helper.rb', :after => "module ApplicationHelper" do
%Q{
  
  def button_submit(text)
    content_tag :p, content_tag(:button, text, :type => :submit), :class => "submit"
  end

  def display_flashes
    return "" if flash.empty?
    out = []
    flash.each do |key, value|
      out << content_tag(:li, value, :class => key)
    end
    content_tag :ul, out.join("\\n").html_safe, :class => "flashes"
  end

  def page_title
    @page_title ? @page_title + " - #{app_name}" : "#{app_name}"
  end

  def title_tag
    content_tag :title, page_title
  end

  def tab(text, link=nil)
    css_class = (controller.controller_name.humanize =~ /\#{text}/i ? "active" : "inactive")
    content_tag :li, :class => css_class do
      link_to text, (link ? link : send(text.downcase.underscore + "_path"))
    end
  end
}
end

# Database config
run "cp config/database.yml config/database.yml.example"
append_to_file '.gitignore', "config/database.yml"

if yes?("Create and prepare db?")
  rake "db:create:all"
  rake "db:migrate"
  rake "db:test:prepare"
end

# Git
git :init
git :add => "."
git :commit => "-a -m 'Setting up project'"