Resolved mvanholstyn's open file fixes with current code

lib/paperclip/attachment.rb

@@ -186,9 +186,9 @@ module Paperclip
         begin
           dimensions, format = args
           @queued_for_write[name] = Thumbnail.make(@queued_for_write[:original], 
-                                                  dimensions,
-                                                  format, 
-                                                  @whiny_thumnails)
+                                                   dimensions,
+                                                   format, 
+                                                   @whiny_thumnails)
         rescue Errno::ENOENT  => e
           @errors << "could not be processed because the file does not exist."
         rescue PaperclipError => e

lib/paperclip/storage.rb

@@ -16,7 +16,7 @@ module Paperclip
       # Returns representation of the data of the file assigned to the given
       # style, in the format most representative of the current storage.
       def to_file style = default_style
-        File.new(path(style)) if exists?(style)
+        @queued_for_write[style] || (File.new(path(style)) if exists?(style))
       end
       alias_method :to_io, :to_file
 
@@ -35,7 +35,7 @@ module Paperclip
           begin
             FileUtils.rm(path) if File.exist?(path)
           rescue Errno::ENOENT => e
-            # ignore them
+            # ignore file-not-found, let everything else pass
           end
         end
         @queued_for_delete = []
@@ -74,7 +74,7 @@ module Paperclip
       # Returns representation of the data of the file assigned to the given
       # style, in the format most representative of the current storage.
       def to_file style = default_style
-        @s3_bucket.key(path(style))
+        @queued_for_write[style] || @s3_bucket.key(path(style))
       end
       alias_method :to_io, :to_file
 

tasks/paperclip_tasks.rake

 def obtain_class
   class_name = ENV['CLASS'] || ENV['class']
+  raise "Must specify CLASS" unless class_name
   @klass = Object.const_get(class_name)
 end
 
 def obtain_attachments
   name = ENV['ATTACHMENT'] || ENV['attachment']
+  raise "Class #{@klass.name} has no attachments specified" unless @klass.respond_to?(:attachment_names)
   if !name.blank? && @klass.attachment_names.include?(name)
     [ name ]
   else
@@ -16,11 +18,10 @@ namespace :paperclip do
   desc "Regenerates thumbnails for a given CLASS (and optional ATTACHMENT)"
   task :refresh => :environment do
     klass     = obtain_class
-    instances = klass.find(:all)
     names     = obtain_attachments
     
     puts "Regenerating thumbnails for #{instances.length} instances of #{klass.name}:"
-    instances.each do |instance|
+    klass.find(:all).each do |instance|
       names.each do |name|
         result = if instance.send("#{ name }?")
           instance.send(name).send("post_process")

test/test_attachment.rb

@@ -195,23 +195,6 @@ class AttachmentTest < Test::Unit::TestCase
               @existing_names.each{|f| assert ! File.exists?(f) }
             end
           end
-
-          context "and deleted" do
-            setup do
-              @existing_names = @attachment.styles.keys.collect do |style|
-                @attachment.path(style)
-              end
-              @instance.expects(:[]=).with(:test_file_name, nil)
-              @instance.expects(:[]=).with(:test_content_type, nil)
-              @instance.expects(:[]=).with(:test_file_size, nil)
-              @attachment.assign nil
-              @attachment.save
-            end
-
-            should "delete the files" do
-              @existing_names.each{|f| assert ! File.exists?(f) }
-            end
-          end
         end
       end
     end

test/test_integration.rb

@@ -223,7 +223,7 @@ class IntegrationTest < Test::Unit::TestCase
         expected = @dummy.avatar.to_file
         @dummy.avatar = "not a file"
         assert @dummy.valid?
-        assert_equal expected, @dummy.avatar.to_file
+        assert_equal expected.full_name, @dummy.avatar.to_file.full_name
 
         @dummy.avatar = @bad_file
         assert ! @dummy.valid?