make mm-init templates extensible. closes middleman#18.

bin/mm-init

@@ -1,37 +1,25 @@
 #!/usr/bin/env ruby
 require File.join(File.dirname(File.dirname(__FILE__)), 'lib', 'middleman')
-require "thor"
-require "thor/group"
+require "middleman/templates"
 
 module Middleman
   class Generator < ::Thor::Group
     include Thor::Actions
 
     argument :location, :type => :string, :desc => "New project location"
 
-    class_option :template, :aliases => "-T", :default => "default", :desc => 'Optionally use a pre-defined project template: html5, default'
-
-    def self.source_root
-      File.join(File.dirname(__FILE__), '..', 'lib', 'middleman', 'templates')
-    end
+    available_templates = Middleman::Templates.registered_names.join(", ")
+    class_option :template, :aliases => "-T", :default => "default", :desc => "Optionally use a pre-defined project template: #{available_templates}"
 
     class_option :css_dir, :default => "stylesheets", :desc => 'The path to the css files'
     class_option :js_dir, :default => "javascripts", :desc => 'The path to the javascript files'
     class_option :images_dir, :default => "images", :desc => 'The path to the image files'
 
     def create_project
-      if options[:template] == "html5"
-        template "html5boilerplate/config.tt", File.join(location, "config.rb")
-        directory "html5boilerplate/public", File.join(location, "public")
-        empty_directory File.join(location, "views")
-      else
-        template "default/config.tt", File.join(location, "config.rb")
-        template "default/config.ru", File.join(location, "config.ru")
-        directory "default/views", File.join(location, "views")
-        empty_directory File.join(location, "public", options[:css_dir])
-        empty_directory File.join(location, "public", options[:js_dir])
-        empty_directory File.join(location, "public", options[:images_dir])
-      end
+      key = options[:template].to_sym
+      key = :default unless Middleman::Templates.registered_templates.has_key?(key)
+
+      Middleman::Templates.registered_templates[key].start
     end
   end
 end

features/step_definitions/generator_steps.rb

@@ -8,7 +8,7 @@
 
 Then /^template files should exist at "([^\"]*)"$/ do |dirname|
   target = File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "fixtures", dirname)
-  template_glob = File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "lib", "middleman", "template", "*/**/*")
+  template_glob = File.join(File.dirname(File.dirname(File.dirname(__FILE__))), "lib", "middleman", "templates", "default", "*/**/*")
 
   Dir[template_glob].each do |f|
     next if File.directory?(f)

lib/middleman/server.rb

@@ -9,7 +9,7 @@ module Middleman
   class Server < Sinatra::Base
     # Basic Sinatra config
     set :app_file,    __FILE__
-    #set :root,        ENV["MM_DIR"] || Dir.pwd
+    set :root,        ENV["MM_DIR"] || Dir.pwd
     set :reload,      false
     set :sessions,    false
     set :logging,     false
@@ -154,15 +154,15 @@ def process_request(options={})
 
 # The Rack App
 class Middleman::Server
-  def self.new(*args, &block)    
+  def self.new(*args, &block)  
     # Check for and evaluate local configuration
     local_config = File.join(self.root, "config.rb")
     if File.exists? local_config
       $stderr.puts "== Reading:  Local config" if logging?
       Middleman::Server.class_eval File.read(local_config)
       set :app_file, File.expand_path(local_config)
     end
-
+      
     use ::Rack::ConditionalGet
     use ::Rack::Static, :urls => ["/#{self.images_dir}"], :root => "public"
 

lib/middleman/templates.rb

@@ -0,0 +1,31 @@
+require "thor"
+require "thor/group"
+
+module Middleman::Templates
+  @@template_mappings = {}
+  def self.register(name, klass)
+    @@template_mappings[name] = klass
+  end
+
+  def self.registered_names
+    @@template_mappings.keys
+  end
+
+  def self.registered_templates
+    @@template_mappings
+  end
+
+  class Base < ::Thor::Group
+    include Thor::Actions
+
+    argument :location, :type => :string
+    class_option :css_dir, :default => "stylesheets", :desc => 'The path to the css files'
+    class_option :js_dir, :default => "javascripts", :desc => 'The path to the javascript files'
+    class_option :images_dir, :default => "images", :desc => 'The path to the image files'
+  end
+end
+
+# Default template
+require "middleman/templates/default"
+# HTML5 template
+require "middleman/templates/html5"

lib/middleman/templates/default.rb

@@ -0,0 +1,16 @@
+class Middleman::Templates::Default < Middleman::Templates::Base
+  def self.source_root
+    File.join(File.dirname(__FILE__), 'default')
+  end
+
+  def build_scaffold
+    template "config.tt", File.join(location, "config.rb")
+    template "config.ru", File.join(location, "config.ru")
+    directory "views", File.join(location, "views")
+    empty_directory File.join(location, "public", options[:css_dir])
+    empty_directory File.join(location, "public", options[:js_dir])
+    empty_directory File.join(location, "public", options[:images_dir])
+  end  
+end
+
+Middleman::Templates.register(:default, Middleman::Templates::Default)

lib/middleman/templates/html5.rb

@@ -0,0 +1,13 @@
+class Middleman::Templates::Html5 < Middleman::Templates::Base
+  def self.source_root
+    File.join(File.dirname(__FILE__), 'html5')
+  end
+
+  def build_scaffold
+    template "config.tt", File.join(location, "config.rb")
+    directory "public", File.join(location, "public")
+    empty_directory File.join(location, "views")
+  end
+end
+
+Middleman::Templates.register(:html5, Middleman::Templates::Html5)

lib/middleman/templates/html5/config.ru

@@ -0,0 +1,4 @@
+require 'rubygems'
+require 'middleman'
+
+run Middleman::Server