Let's use something which is made for parsing CLI and executing comma…

…nds: Nake.

apiary.gemspec

@@ -21,6 +21,7 @@ Gem::Specification.new do |gem|
 
   gem.files = Dir.glob("#{project_root}/{lib,spec,apiary.gemspec,Gemfile,README.md,LICENSE}/**/*")
 
+  gem.add_dependency "nake"
   gem.add_dependency "rest-client", "~> 1.6.1"
   gem.add_dependency "launchy",     ">= 0.3.2"
 

bin/apiary

@@ -1,13 +1,14 @@
-#!/usr/bin/env ruby
-# encoding: UTF-8
+#!/usr/bin/env nake
+# encoding: utf-8
 
-begin
-  require "pathname"
-  bin_file = Pathname.new(__FILE__).realpath
+# Make sure symlinks to this file work.
+real_bin_path  = File.symlink?(__FILE__) ? File.readlink(__FILE__) : __FILE__
+root_directory = File.expand_path(File.join(File.dirname(real_bin_path), ".."))
+lib_directory  = File.join(root_directory, "lib")
 
-  $:.unshift File.expand_path("../../lib", bin_file)
-
-  require "apiary/cli"
-  Apiary::CLI.start(*ARGV)
-rescue Interrupt
+# In development environment we want to use ./lib.
+unless $LOAD_PATH.include?(lib_directory)
+  $LOAD_PATH.unshift(lib_directory)
 end
+
+require "apiary"

lib/apiary.rb

@@ -0,0 +1,5 @@
+# encoding: utf-8
+
+require "nake"
+
+require "apiary/commands/preview"

lib/apiary/commands/preview.rb

@@ -1,27 +1,22 @@
-require "apiary/commands/base"
+# encoding: utf-8
 
 # Display preview of local blueprint file
-module Apiary
-  module Command
-    class Preview < Apiary::Command::Base
-      # Preview.
-      #
-      # Launch web browser and display preview of local blueprint file
-      def index
-        api_server = ENV.fetch("APIARY_API_HOST") { "api.apiary.io" }
+Task.new(:preview) do |task|
+  task.description = "Display preview of local blueprint file"
 
-        require "launchy"
-        require "rest_client"
-
-        headers  = {:accept => "text/html", :content_type => "text/plain"}
-        response = RestClient.post "https://#{api_server}/blueprint/generate", IO.read("apiary.apib"), headers
+  task.boot do
+    require "launchy"
+    require "rest_client"
+  end
 
-        file = File.new("/tmp/apiarypreview.html", "w")
-        file.write(response)
-        file.close
+  task.define do |api_server = "api.apiary.io"|
+    headers  = {:accept => "text/html", :content_type => "text/plain"}
+    response = RestClient.post "https://#{api_server}/blueprint/generate", IO.read("apiary.apib"), headers
 
-        Launchy.open("file:///tmp/apiarypreview.html")
-      end
+    File.new("/tmp/apiarypreview.html", "w") do |file|
+      file.write(response)
     end
+
+    Launchy.open("file:///tmp/apiarypreview.html")
   end
 end

lib/apiary/version.rb

@@ -1,3 +1,5 @@
+# encoding: utf-8
+
 module Apiary
   VERSION ||= "0.0.1"
 end