Rails::Generators::Actions

add_source(source, options = {}, &block)

Add the given source to Gemfile

If block is given, gem entries in block are wrapped into the source group.

add_source "http://gems.github.com/"

add_source "http://gems.github.com/" do
  gem "rspec-rails"
end

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 94
      def add_source(source, options = {}, &block)
        log :source, source

        in_root do
          if block
            append_file_with_newline "Gemfile", "\nsource #{quote(source)} do", force: true
            with_indentation(&block)
            append_file_with_newline "Gemfile", "end", force: true
          else
            prepend_file "Gemfile", "source #{quote(source)}\n", verbose: false
          end
        end
      end

🔎 See on GitHub

application(data = nil, options = {})

Alias for: environment

environment(data = nil, options = {})

Adds a line inside the Application class for config/application.rb.

If options :env is specified, the line is appended to the corresponding file in config/environments.

environment do
  "config.asset_host = 'cdn.provider.com'"
end

environment(nil, env: "development") do
  "config.asset_host = 'localhost:3000'"
end

Also aliased as: application

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 120
      def environment(data = nil, options = {})
        sentinel = "class Application < Rails::Application\n"
        env_file_sentinel = "Rails.application.configure do\n"
        data ||= yield if block_given?

        in_root do
          if options[:env].nil?
            inject_into_file "config/application.rb", optimize_indentation(data, 4), after: sentinel, verbose: false
          else
            Array(options[:env]).each do |env|
              inject_into_file "config/environments/#{env}.rb", optimize_indentation(data, 2), after: env_file_sentinel, verbose: false
            end
          end
        end
      end

🔎 See on GitHub

gem(*args)

Adds an entry into Gemfile for the supplied gem.

gem "rspec", group: :test
gem "technoweenie-restful-authentication", lib: "restful-authentication", source: "http://gems.github.com/"
gem "rails", "3.0", git: "https://github.com/rails/rails"
gem "RedCloth", ">= 4.1.0", "< 4.2.0"

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 21
      def gem(*args)
        options = args.extract_options!
        name, *versions = args

        # Set the message to be shown in logs. Uses the git repo if one is given,
        # otherwise use name (version).
        parts, message = [ quote(name) ], name.dup

        if versions = versions.any? ? versions : options.delete(:version)
          _versions = Array(versions)
          _versions.each do |version|
            parts << quote(version)
          end
          message << " (#{_versions.join(", ")})"
        end
        message = options[:git] if options[:git]

        log :gemfile, message

        parts << quote(options) unless options.empty?

        in_root do
          str = "gem #{parts.join(", ")}"
          str = indentation + str
          append_file_with_newline "Gemfile", str, verbose: false
        end
      end

🔎 See on GitHub

gem_group(*names, &block)

Wraps gem entries inside a group.

gem_group :development, :test do
  gem "rspec-rails"
end

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 54
      def gem_group(*names, &block)
        options = names.extract_options!
        str = names.map(&:inspect)
        str << quote(options) unless options.empty?
        str = str.join(", ")
        log :gemfile, "group #{str}"

        in_root do
          append_file_with_newline "Gemfile", "\ngroup #{str} do", force: true
          with_indentation(&block)
          append_file_with_newline "Gemfile", "end", force: true
        end
      end

🔎 See on GitHub

generate(what, *args)

Generate something using a generator from Rails or a plugin. The second parameter is the argument string that is passed to the generator or an Array that is joined.

generate(:authenticated, "user session")

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 226
      def generate(what, *args)
        log :generate, what

        options = args.extract_options!
        options[:abort_on_failure] = !options[:inline]

        rails_command "generate #{what} #{args.join(" ")}", options
      end

🔎 See on GitHub

git(commands = {})

Run a command in git.

git :init
git add: "this.file that.rb"
git add: "onefile.rb", rm: "badfile.cxx"

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 142
      def git(commands = {})
        if commands.is_a?(Symbol)
          run "git #{commands}"
        else
          commands.each do |cmd, options|
            run "git #{cmd} #{options}"
          end
        end
      end

🔎 See on GitHub

github(repo, options = {}, &block)

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 68
      def github(repo, options = {}, &block)
        str = [quote(repo)]
        str << quote(options) unless options.empty?
        str = str.join(", ")
        log :github, "github #{str}"

        in_root do
          if @indentation.zero?
            append_file_with_newline "Gemfile", "\ngithub #{str} do", force: true
          else
            append_file_with_newline "Gemfile", "#{indentation}github #{str} do", force: true
          end
          with_indentation(&block)
          append_file_with_newline "Gemfile", "#{indentation}end", force: true
        end
      end

🔎 See on GitHub

initializer(filename, data = nil)

Create a new initializer with the provided code (either in a block or a string).

initializer("globals.rb") do
  data = ""

  ['MY_WORK', 'ADMINS', 'BEST_COMPANY_EVAR'].each do |const|
    data << "#{const} = :entp\n"
  end

  data
end

initializer("api.rb", "API_KEY = '123456'")

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 215
      def initializer(filename, data = nil)
        log :initializer, filename
        data ||= yield if block_given?
        create_file("config/initializers/#{filename}", optimize_indentation(data), verbose: false)
      end

🔎 See on GitHub

lib(filename, data = nil)

Create a new file in the lib/ directory. Code can be specified in a block or a data string can be given.

lib("crypto.rb") do
  "crypted_special_value = '#{rand}--#{Time.now}--#{rand(1337)}--'"
end

lib("foreign.rb", "# Foreign code is fun")

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 175
      def lib(filename, data = nil)
        log :lib, filename
        data ||= yield if block_given?
        create_file("lib/#{filename}", optimize_indentation(data), verbose: false)
      end

🔎 See on GitHub

rails_command(command, options = {})

Runs the supplied rake task (invoked with 'rails …')

rails_command("db:migrate")
rails_command("db:migrate", env: "production")
rails_command("gems:install", sudo: true)
rails_command("gems:install", capture: true)

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 251
      def rails_command(command, options = {})
        if options[:inline]
          log :rails, command
          command, *args = Shellwords.split(command)
          in_root do
            silence_warnings do
              ::Rails::Command.invoke(command, args, **options)
            end
          end
        else
          execute_command :rails, command, options
        end
      end

🔎 See on GitHub

rake(command, options = {})

Runs the supplied rake task (invoked with 'rake …')

rake("db:migrate")
rake("db:migrate", env: "production")
rake("gems:install", sudo: true)
rake("gems:install", capture: true)

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 241
      def rake(command, options = {})
        execute_command :rake, command, options
      end

🔎 See on GitHub

rakefile(filename, data = nil)

Create a new Rakefile with the provided code (either in a block or a string).

rakefile("bootstrap.rake") do
  project = ask("What is the UNIX name of your project?")

  <<-TASK
    namespace :#{project} do
      task :bootstrap do
        puts "I like boots!"
      end
    end
  TASK
end

rakefile('seed.rake', 'puts "Planting seeds"')

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 196
      def rakefile(filename, data = nil)
        log :rakefile, filename
        data ||= yield if block_given?
        create_file("lib/tasks/#{filename}", optimize_indentation(data), verbose: false)
      end

🔎 See on GitHub

readme(path)

Reads the given file at the source root and prints it in the console.

readme "README"

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 285
      def readme(path)
        log File.read(find_in_source_paths(path))
      end

🔎 See on GitHub

route(routing_code, namespace: nil)

Make an entry in Rails routing file config/routes.rb

route "root 'welcome#index'"
route "root 'admin#index'", namespace: :admin

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 269
      def route(routing_code, namespace: nil)
        routing_code = Array(namespace).reverse.reduce(routing_code) do |code, ns|
          "namespace :#{ns} do\n#{indent(code, 2)}\nend"
        end

        log :route, routing_code
        sentinel = /\.routes\.draw do\s*\n/m

        in_root do
          inject_into_file "config/routes.rb", optimize_indentation(routing_code, 2), after: sentinel, verbose: false, force: false
        end
      end

🔎 See on GitHub

vendor(filename, data = nil)

Create a new file in the vendor/ directory. Code can be specified in a block or a data string can be given.

vendor("sekrit.rb") do
  sekrit_salt = "#{Time.now}--#{3.years.ago}--#{rand}--"
  "salt = '#{sekrit_salt}'"
end

vendor("foreign.rb", "# Foreign code is fun")

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 161
      def vendor(filename, data = nil)
        log :vendor, filename
        data ||= yield if block_given?
        create_file("vendor/#{filename}", optimize_indentation(data), verbose: false)
      end

🔎 See on GitHub

execute_command(executor, command, options = {})

Runs the supplied command using either “rake …” or “rails …” based on the executor parameter provided.

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 304
        def execute_command(executor, command, options = {}) # :doc:
          log executor, command
          sudo = options[:sudo] && !Gem.win_platform? ? "sudo " : ""
          config = {
            env: { "RAILS_ENV" => (options[:env] || ENV["RAILS_ENV"] || "development") },
            verbose: false,
            capture: options[:capture],
            abort_on_failure: options[:abort_on_failure],
          }

          in_root { run("#{sudo}#{extify(executor)} #{command}", config) }
        end

🔎 See on GitHub

extify(name)

Add an extension to the given name based on the platform.

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 318
        def extify(name) # :doc:
          if Gem.win_platform?
            "#{name}.bat"
          else
            name
          end
        end

🔎 See on GitHub

indentation()

Indent the Gemfile to the depth of @indentation

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 350
        def indentation # :doc:
          "  " * @indentation
        end

🔎 See on GitHub

log(*args)

Define log for backwards compatibility. If just one argument is sent, invoke say, otherwise invoke say_status. Differently from say and similarly to say_status, this method respects the quiet? option given.

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 293
        def log(*args) # :doc:
          if args.size == 1
            say args.first.to_s unless options.quiet?
          else
            args << (behavior == :invoke ? :green : :red)
            say_status(*args)
          end
        end

🔎 See on GitHub

optimize_indentation(value, amount = 0)

Returns optimized string with indentation

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 344
        def optimize_indentation(value, amount = 0) # :doc:
          return "#{value}\n" unless value.is_a?(String)
          "#{value.strip_heredoc.indent(amount).chomp}\n"
        end

🔎 See on GitHub

quote(value)

Surround string with single quotes if there is no quotes. Otherwise fall back to double quotes

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 328
        def quote(value) # :doc:
          if value.respond_to? :each_pair
            return value.map do |k, v|
              "#{k}: #{quote(v)}"
            end.join(", ")
          end
          return value.inspect unless value.is_a? String

          if value.include?("'")
            value.inspect
          else
            "'#{value}'"
          end
        end

🔎 See on GitHub

with_indentation(&block)

Manage Gemfile indentation for a DSL action block

📝 Source code

# File railties/lib/rails/generators/actions.rb, line 355
        def with_indentation(&block) # :doc:
          @indentation += 1
          instance_eval(&block)
        ensure
          @indentation -= 1
        end

🔎 See on GitHub

Rails::Generators::Actions

Methods

Instance Public methods

add_source(source, options = {}, &block)

application(data = nil, options = {})

environment(data = nil, options = {})

gem(*args)

gem_group(*names, &block)

generate(what, *args)

git(commands = {})

github(repo, options = {}, &block)

initializer(filename, data = nil)

lib(filename, data = nil)

rails_command(command, options = {})

rake(command, options = {})

rakefile(filename, data = nil)

readme(path)

route(routing_code, namespace: nil)

vendor(filename, data = nil)

Instance Private methods

execute_command(executor, command, options = {})

extify(name)

indentation()

log(*args)

optimize_indentation(value, amount = 0)

quote(value)

with_indentation(&block)