adding readme and simplifying file paths

README.rdoc

@@ -0,0 +1,32 @@
+= Letter Opener
+
+Preview mail in your browser instead of sending it. When using the included delivery method, any sent mail will open automatically into the browser.
+
+== Rails Setup
+
+Add the gem to your development environment and run the +bundle+ command.
+
+  gem "letter_opener", :group => :development
+
+And then set the delivery method in <tt>config/environments/development.rb</tt>
+
+  config.action_mailer.delivery_method = :letter_opener
+
+Now any delivered mail will pop up in your browser. The messages are stored in <tt>tmp/letter_opener</tt>.
+
+
+== Other Setup
+
+This can be used with any environment that uses the Mail gem. Simply set the delivery method when configuring Mail and specify a location.
+
+  require "letter_opener"
+  Mail.defaults do
+    delivery_method LetterOpener::DeliveryMethod, :location => "tmp/letter_opener"
+  end
+
+
+== Development & Feedback
+
+Questions or comments? Please use the {issue tracker}[https://github.com/ryanb/private_pub/issues]. If you would like to contribue to this project, clone this repository and run +bundle+ and +rake+ to run the tests.
+
+Special thanks to the {mail_view}[https://github.com/37signals/mail_view/] gem for inspiring this project.

letter_opener.gemspec

@@ -5,7 +5,7 @@ Gem::Specification.new do |s|
   s.email       = "ryan@railscasts.com"
   s.homepage    = "http://github.com/ryanb/letter_opener"
   s.summary     = "Preview mail in browser instead of sending."
-  s.description = "When mail is sent from your application, Open Mail will open a preview in the browser instead of sending."
+  s.description = "When mail is sent from your application, Letter Opener will open a preview in the browser instead of sending."
 
   s.files        = Dir["{lib,spec}/**/*", "[A-Z]*"] - ["Gemfile.lock"]
   s.require_path = "lib"

lib/letter_opener/delivery_method.rb

@@ -5,14 +5,13 @@ def initialize(options = {})
     end
 
     def deliver!(mail)
-      identity = Time.now.to_i.to_s + Digest::SHA1.hexdigest(mail.encoded)[0..6]
-      path = File.join(@options[:location], identity)
-      FileUtils.mkdir_p(path)
-      File.open(File.join(path, "index.html"), 'w') do |f|
+      path = File.join(@options[:location], "#{Time.now.to_i}_#{Digest::SHA1.hexdigest(mail.encoded)[0..6]}.html")
+      FileUtils.mkdir_p(@options[:location])
+      File.open(path, 'w') do |f|
         template = File.expand_path("../views/index.html.erb", __FILE__)
         f.write ERB.new(File.read(template)).result(binding)
       end
-      Launchy.open("file://#{File.join(path, "index.html")}")
+      Launchy.open("file://#{path}")
     end
   end
 end

spec/letter_opener/delivery_method_spec.rb

@@ -19,7 +19,7 @@
       subject 'Hello'
       body    'World!'
     end
-    html = File.read(Dir["#{@location}/*/index.html"].first)
+    html = File.read(Dir["#{@location}/*.html"].first)
     html.should include("Hello")
     html.should include("World!")
   end