Barebone cramp application generator.

  Example:

  $ cramp new appname

CHANGELOG

@@ -1,3 +1,11 @@
+== 0.14 Asgard (Unreleased)
+
+* Barebone application generator using Thor.
+
+  Example:
+
+    $ cramp new liveblog
+
 == 0.13 Facelift (31 July, 2011)
 
 * Added use_fiber_pool for wrapping every on_start/on_finish/periodic_timer callbacks within a Fiber. Default fiber pool size is 100.

Gemfile.lock

@@ -5,6 +5,7 @@ PATH
       activesupport (~> 3.0.9)
       eventmachine (~> 0.12.10)
       rack (~> 1.2.1)
+      thor (~> 0.14.6)
 
 GEM
   remote: http://rubygems.org/
@@ -48,6 +49,7 @@ GEM
       daemons (>= 1.0.9)
       eventmachine (>= 0.12.6)
       rack (>= 1.0.0)
+    thor (0.14.6)
     tzinfo (0.3.29)
     unicorn (3.4.0)
       kgio (~> 2.2)

bin/cramp

@@ -0,0 +1,17 @@
+#!/usr/bin/env ruby
+
+require 'cramp'
+require 'cramp/generators/application'
+
+if ['--version', '-v'].include?(ARGV.first)
+  puts "Cramp #{Cramp::VERSION}"
+  exit(0)
+end
+
+if ARGV.first != "new"
+  ARGV[0] = "--help"
+else
+  ARGV.shift
+end
+
+Cramp::Generators::Application.start

cramp.gemspec

@@ -12,9 +12,13 @@ Gem::Specification.new do |s|
   s.add_dependency('activesupport', '~> 3.0.9')
   s.add_dependency('rack',          '~> 1.2.1')
   s.add_dependency('eventmachine',  '~> 0.12.10')
+  s.add_dependency('thor',          '~> 0.14.6')
 
-  s.files = Dir['README', 'MIT-LICENSE', 'lib/**/*']
+  s.files = Dir['README', 'MIT-LICENSE', 'lib/**/*', 'bin/**/*']
   s.has_rdoc = false
 
   s.require_path = 'lib'
+
+  s.bindir = 'bin'
+  s.executables = ['cramp']
 end

lib/cramp/generators/application.rb

@@ -0,0 +1,83 @@
+require 'thor/group'
+require 'active_support/core_ext/string/strip'
+require 'active_support/core_ext/string/inflections'
+require 'active_support/core_ext/object/blank'
+
+module Cramp
+  module Generators
+
+    class Application < Thor::Group
+      include Thor::Actions
+
+      argument :application_path, :type => :string
+
+      def initialize(*args)
+        raise Thor::Error, "No application name supplied. Please run: cramp --help" if args[0].blank?
+
+        super
+      end
+
+      def self.source_root
+        @_source_root ||= File.join(File.dirname(__FILE__), "templates/application")
+      end
+
+      def self.banner
+        "cramp new #{self.arguments.map(&:usage).join(' ')} [options]"
+      end
+
+      def create_root
+        self.destination_root = File.expand_path(application_path, destination_root)
+        valid_const?
+
+        empty_directory '.'
+        FileUtils.cd(destination_root)
+      end
+
+      def create_root_files
+        template 'config.ru'
+        template 'Gemfile'
+        template 'application.rb'
+      end
+
+      def create_config
+        empty_directory "config"
+
+        inside "config" do
+          template "routes.rb"
+        end
+      end
+
+      def create_home_action
+        empty_directory "app/actions"
+
+        inside "app/actions" do
+          template "base_action.rb"
+          template "home_action.rb"
+        end
+      end
+
+      protected
+
+      def app_name
+        @app_name ||= File.basename(destination_root)
+      end
+
+      def app_const
+        @app_const ||= "#{app_const_base}::Application"
+      end
+
+      def app_const_base
+        @app_const_base ||= app_name.gsub(/\W/, '_').squeeze('_').camelize
+      end
+
+      def valid_const?
+        if app_const =~ /^\d/
+          raise Thor::Error, "Invalid application name #{app_name}. Please give a name which does not start with numbers."
+        elsif Object.const_defined?(app_const_base)
+          raise Thor::Error, "Invalid application name #{app_name}, constant #{app_const_base} is already in use. Please choose another application name."
+        end
+      end
+    end
+
+  end
+end

lib/cramp/generators/templates/application/Gemfile

@@ -0,0 +1,16 @@
+source :rubygems
+
+gem 'cramp'
+
+# Async webserver for running a cramp application
+gem 'thin'
+
+# Rack based routing
+gem 'http_router'
+
+# For async Active Record models
+# gem 'mysql2'
+# gem 'activerecord'
+
+# Using Fibers + async callbacks to emulate synchronous programming
+# gem 'em-synchrony'

lib/cramp/generators/templates/application/app/actions/base_action.rb

@@ -0,0 +1,2 @@
+class BaseAction < Cramp::Action
+end

lib/cramp/generators/templates/application/app/actions/home_action.rb

@@ -0,0 +1,6 @@
+class HomeAction < BaseAction
+  def start
+    render "Hello World!"
+    finish
+  end
+end

lib/cramp/generators/templates/application/application.rb

@@ -0,0 +1,20 @@
+require "rubygems"
+require "bundler"
+
+Bundler.setup(:default)
+
+require 'cramp'
+require 'http_router'
+
+require './app/actions/base_action'
+require './app/actions/home_action'
+
+module <%= app_const_base %>
+  class Application
+
+    def self.routes
+      @_routes ||= eval(File.read('./config/routes.rb'))
+    end
+
+  end
+end

lib/cramp/generators/templates/application/config.ru

@@ -0,0 +1,4 @@
+require './application'
+
+# bundle exec thin --max-persistent-conns 1024 -V -R config.ru start
+run <%= app_const %>.routes

lib/cramp/generators/templates/application/config/routes.rb

@@ -0,0 +1,3 @@
+HttpRouter.new do
+  add('/').to(HomeAction)
+end