Close all the files! Well, some anyway.

Gemfile

@@ -2,14 +2,9 @@ source "https://rubygems.org"
 
 gemspec
 
-platform :jruby do
-  gem 'jruby-openssl'
-  gem 'activerecord-jdbcsqlite3-adapter'
-end
-
-platform :ruby do
-  gem 'pry'
-  gem 'pry-debugger'
-end
+gem "jruby-openssl", :platform=>:jruby
+gem "activerecord-jdbcsqlite3-adapter", :platform=>:jruby
+gem 'pry', :platform=>:ruby
+gem 'pry-debugger', :platform=>:ruby
 
 gem "cocaine", :path => "/Users/jyurek/Development/cocaine"

lib/paperclip/attachment.rb

@@ -429,10 +429,16 @@ module Paperclip
     def post_process_style(name, style) #:nodoc:
       begin
         raise RuntimeError.new("Style #{name} has no processors defined.") if style.processors.blank?
+        original_file = @queued_for_write[:original]
         @queued_for_write[name] = style.processors.inject(@queued_for_write[:original]) do |file, processor|
-          Paperclip.processor(processor).make(file, style.processor_options, self)
+          new_file = Paperclip.processor(processor).make(file, style.processor_options, self)
+          file.close unless file == original_file
+          new_file
         end
+        unadapted_file = @queued_for_write[name]
         @queued_for_write[name] = Paperclip.io_adapters.for(@queued_for_write[name])
+        unadapted_file.close if unadapted_file.respond_to?(:close)
+        @queued_for_write[name]
       rescue Paperclip::Error => e
         log("An error was received while processing: #{e.inspect}")
         (@errors[:processing] ||= []) << e.message if @options[:whiny]

test/attachment_test.rb

@@ -643,7 +643,7 @@ class AttachmentTest < Test::Unit::TestCase
       rebuild_model :processors => [:thumbnail, :test], :styles => @style_params
       @dummy = Dummy.new
       @file = StringIO.new("...")
-      @file.stubs(:to_tempfile).returns(@file)
+      @file.stubs(:close)
       Paperclip::Test.stubs(:make).returns(@file)
       Paperclip::Thumbnail.stubs(:make).returns(@file)
     end

test/helper.rb

@@ -44,7 +44,7 @@ class Test::Unit::TestCase
   end
 
   def teardown
-    report_files
+    # report_file:
   end
 
   def report_files
@@ -231,3 +231,35 @@ def assert_frame_dimensions(range, frames)
     end
   end
 end
+
+# class File
+#   def initialize_with_logging(*args)
+#     if args.first != "/Users/jyurek/.pry_history"
+#       pp "NEW FILE #{args.inspect}"
+#       # pp caller
+#     end
+#     initialize_without_logging(*args)
+#   end
+#   alias_method :initialize_without_logging, :initialize
+#   alias_method :initialize, :initialize_with_logging
+# 
+#   def close_with_logging(*args)
+#     if path != "/Users/jyurek/.pry_history"
+#       pp "CLOSE FILE #{self.path}"
+#       # pp caller
+#     end
+#     close_without_logging(*args)
+#   end
+#   alias_method :close_without_logging, :close
+#   alias_method :close, :close_with_logging
+# end
+# 
+# class Tempfile
+#   def initialize_with_logging(*args)
+#     # pp "NEW #{args.inspect}"
+#     # pp caller
+#     initialize_without_logging(*args)
+#   end
+#   alias_method :initialize_without_logging, :initialize
+#   alias_method :initialize, :initialize_with_logging
+# end

test/io_adapters/attachment_adapter_test.rb

 require './test/helper'
+require 'pp'
 
-# class File
-#   def initialize_with_logging(*args)
-#     p "NEW FILE #{args.inspect}"
-#     p caller
-#     initialize_without_logging(*args)
-#   end
-#   alias_method :initialize_without_logging, :initialize
-#   alias_method :initialize, :initialize_with_logging
-# end
-
-# class Tempfile
-#   def initialize_with_logging(*args)
-#     p "NEW #{args.inspect}"
-#     initialize_without_logging(*args)
-#   end
-#   alias_method :initialize_without_logging, :initialize
-#   alias_method :initialize, :initialize_with_logging
-# end
 class AttachmentAdapterTest < Test::Unit::TestCase
 
   def setup
@@ -37,6 +20,7 @@ class AttachmentAdapterTest < Test::Unit::TestCase
 
     teardown do
       @file.close
+      @subject.close
     end
 
     should "get the right filename" do
@@ -116,6 +100,7 @@ class AttachmentAdapterTest < Test::Unit::TestCase
     teardown do
       @file.close
       @thumb.close
+      @subject.close
     end
 
     should "get the original filename" do

test/io_adapters/empty_string_adapter_test.rb

@@ -2,12 +2,6 @@ require './test/helper'
 
 class EmptyStringAdapterTest < Test::Unit::TestCase
 
-  def teardown
-    if @subject
-      @subject.close
-    end
-  end
-
   context 'a new instance' do
     setup do
       @subject = Paperclip.io_adapters.for('')