Generator for initializing gsadmin setup

gsadmin-initializer.rb

module Gsadmin
  module Generators
          class InitializerGenerator < Rails::Generators::Base
                source_root File.expand_path("../templates", __FILE__)
                desc "Gsadmin installation generator."

                def welcome
                  say "Thank you for using gsadmin, if you have any questions, my email is [email protected]", :cyan
                end

                def check_if_rails_project
                  unless File.exists?("Gemfile")
                        say "Missing Gemfile! Is this a rails project? If yes, something went really wrong, create your Gemfile and retry.", :red
                        unless yes?("It may not work properly. Do you want to continue?", :red)
                          abort("Exit...")
                        end
                  end
                  unless File.exists?(Rails.root.join("config/routes.rb"))
                        say "Missing routes.rb! Is this a rails project? If yes, something went really wrong, create your routes.rb and retry.", :red
                        unless yes?("It may not work properly. Do you want to continue?", :red)
                          abort("Exit...")
                        end
                  end
                end

                def install_devise
                  say("gsadmin needs devise.", :yellow)
                  if yes?("Do you want to install devise right now? (click yes if you don't have installed already)", :yellow)
                        append_file "Gemfile", "\n", :force => true
                        gem "devise"
                        generate "devise:install"
                  end
                end

                def install_devise_model
                  if yes?("Do you have a devise model already?", :yellow)
                        @devise_model = ask("What is his model name? [default: admin]", :yellow)
                        @devise_model = "admin" if @devise_model.empty?
                        say("Ok, make sure that you have this in your routes.rb, before the mounted engine route:", :yellow)
                        say("  devise_for :#{@devise_model.pluralize}, path_names: {sign_in: 'login', sign_out: 'logout'}", :cyan)
                  else
                        say("It's ok, I will generate one for you.", :yellow)
                        @devise_model = ask("What would you like the user model to be called? [default: admin]", :yellow)
                        @devise_model = "admin" if @devise_model.empty?
                        say "Now setting up devise with model name '#{@devise_model}':"
                        generate "devise", @devise_model
                        gsub_file "config/routes.rb", "  devise_for \'\/.+\'", ""
                        insert_into_file "config/routes.rb", before: "end" do
                          "  devise_for :#{@devise_model.pluralize}, path_names: {sign_in: 'login', sign_out: 'logout'}\n"
                        end
                  end
                end

                def add_engine_route
                  if yes?("Is this the first time you are installing gsadmin gem?", :yellow)
                        say "I'll add the appropriate routes", :yellow
                        @namespace_route = ask("Where do you want the engine to be installed? (for example under /admin/:yourapp) [default: admin]", :yellow)
                        @namespace_route = "admin" if @namespace_route.empty?
                        insert_into_file "config/routes.rb", after: "Rails.application.routes.draw do\n" do
        "authenticate :#{@devise_model} do\n"
                          "  mount Gsadmin::Engine => '/#{@namespace_route}', :as => '#{@namespace_route}'\n"
        "end\n"
                        end
                        say "You can change the routes of the engine any time you want from the routes.rb file.", :green
                        say "If you need a reminder, just check the gem's wiki on github.", :green
                  end
                end

                def create_initializer
                  template "initializer.erb", "config/initializers/gsadmin.rb"
                end

                def create_migrations
                  #run("rake gsadmin:install:migrations")
                end

                def goodbye
                  say("Run rake db:create and db:migrate for the database", :yellow)
                  say "Thank you for installing gsadmin! If you have questions, send me an email at [email protected].", :cyan
                end
          end # End of Class
  end # End of Module
end # End of Module