emrekutlu/paperclip-compression

image compression processor for Paperclip

paperclip-compression's Issues

compress png instead of jpg

Good day. If I write

has_attached_file: icon,
                     styles: {n100: ['100x100', :jpg, quality: 92]}
                     retina: false,
                     convert_options: { all: '-background white-flatten + matte'},
                     processors: [:thumbnail, :compression]

And upload the image as a png, the plugin will try to do

PaperclipCompression :: Png.make (@file, @options)

But I have to optimize jpg.

I change file paperclip-compression-0.3.1/lib/paperclip-compression/paperclip/compression.rb

...
    def make
      case @attachment.content_type
      when 'image/jpeg' then make_jpeg
      when 'image/png'  then make_png
      else
        @file
      end
    end
...

to

...
    def make
      case @options[:format]
      when :jpg then make_jpeg
      when :png then make_png
      else
        @file
      end
    end
...

and it work to me.

Allow the compression to run as background task

Pulls in paperclip 3.x, works just fine with paperclip 4.1, please update Gemspec

Geutzili

Is it a good idea to replace Guetzli?

https://github.com/google/guetzli

Use OS binaries instead of vendorized binaries

Paperclip compression doesn't work on Alpine Linux because of the vendorized binaries. Is there a setting to force this gem to use native OS installed binaries instead?

converting to PNG when compressing

I have incorporate paperclip-compression in a very simple way, requested that just JPGs get compressed. Configuration as follows:

  has_attached_file :image, processors: [ :rotator, :compression ],
                            styles: {
                              large: {
                                geometry: "1000x1000>",
                                processor_options: {
                                  compression: {
                                    png: false,
                                    jpeg: '-copy none -optimize',
                                  },
                                },
                              },

However, when I reprocess my existing paperclip assets in the rails console, paperclip-compression is saving the file as a .png file. Note the last line in the output below:

Command :: identify -format '%wx%h,%[exif:orientation]' '/tmp/d8862f378121712d2600d85f8cf389d620171217-21995-wlrhbw.jpg[0]' 2>/dev/null
Command :: identify -format %m '/tmp/d8862f378121712d2600d85f8cf389d620171217-21995-wlrhbw.jpg[0]'
Command :: convert '/tmp/d8862f378121712d2600d85f8cf389d620171217-21995-wlrhbw.jpg[0]' -auto-orient -resize "300x300>" -quality 85 '/tmp/e51f0c2fffc1d5330fc0279a446e15ce20171217-21995-620q7x'

Command :: /home/andrew/.rvm/gems/ruby-2.4.0/gems/paperclip-compression-1.0.0/bin/linux/x64/jpegtran -copy none -optimize '/tmp/e51f0c2fffc1d5330fc0279a446e15ce20171217-21995-620q7x' > '/tmp/8321bf781908b3041b4a52e67447e78f20171217-21995-ocqwtu.png'

Thoughts as to why this is happening and how to fix it?

Support for kt-paperclip

Since paperclip has been deprecated, a new maintainer has stepped forward with their own version of paperclip. Would it be possible to change the gemspec to reference the new gem? If not in master, maybe have a kt-paperclip branch?

Rails 4.1.rc2 app won't boot

Hi,

With 'paperclip-compression' in my Gemfile the rails app won't boot.

I get the following error when starting the web server

$ rails s
.rbenv/versions/2.1.1/lib/ruby/gems/2.1.0/gems/parser-2.1.7/lib/parser/ruby21.rb:13:in `<top (required)>': undefined method `check_for_encoding_support' for Parser:Module (NoMethodError)

Regenerate old images

Is there an easy way to regenerate old images? We have for the moment 300.000 images hosted on our website and we want to optimize all this images. Is there a rake task that we can run so he will optimize the images and overwrite the old images?

All our images are stored on s3.

License

Add license to gemspec.

No file size reduction

After enabling paperclip-compression for attached files on my OSX machine I can see a reduction in file size with the default settings. However, when I deploy this to EC2, which is running Ubuntu 12.04, I don't see any effect.

What am I missing?

Any way to suppress console output?

I see a lot of noise in test output, I think it's mainly optipng. What are thoughts on defining OPTIPNG_DEFAULT_OPTS in png.rb to include a -q for quiet output?

Version 1.1.1 fails on MacOS

When run on MacOS Catalina 10.15.7, I receive an "undefined method '[]' for nil:NilClass"
Investigating further, I found the cause on Lines 77-80 of base.rb

   def catalina?
      major = OS.host_os.match(/darwin(\d+)\./)[1].to_i
      major >= 19
    end

OS.host_os on my Mac returns 'darwin19'
It appears that the match is failing, returning nil, causing the [1] to raise an exception.

Same is true with kt-paperclip-compression

undefined method `seek' for Paperclip::FileAdapter

When I try something like this:

MyModel.create!(:icon => File.open(File.join(Rails.root,"app/assets/images/icons/my_image_name.png")))

I got the following error:

undefined method `seek' for Paperclip::FileAdapter: my_image_name.png:Paperclip::FileAdapter
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/parser/png.rb:19:in `dimensions'
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/parser/png.rb:9:in `attributes'
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/parser.rb:14:in `block in parse'
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/parser.rb:13:in `each'
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/parser.rb:13:in `parse'
/Users/oscar/.rvm/gems/ruruby-imagespec-0.3.1/lib/image_spec.rb:7:in `initialize'
/Users/oscar/.rvm/gems/rupaperclip-compression-0.3.3/lib/paperclip-compression/paperclip/compression.rb:25:in `new'

The current code is checking only if the @file is a Paperclip::UploadedFileAdapter:

paperclip-compression/lib/paperclip-compression/paperclip/compression.rb

Line 25 in 2cd18fe

@file.is_a?(Paperclip::UploadedFileAdapter) ? @file.content_type : ImageSpec.new(@file).content_type

But there are other paperclip IO adapters:
https://github.com/thoughtbot/paperclip/tree/a12dec104dde656917963ec6328390003595234a/lib/paperclip/io_adapters

Fails on macOS Catalina

Image compression fails on macOS 10.15 - Catalina.
Error message:
Paperclip::Error: JPEGTRAN : There was an error processing f9aaf99b6da6fe2f2c247a8bc707caab20191015-14554-xej91e

Code that triggers the compressor:

has_attached_file :image_file,
                    styles: { medium: 'x180>', large: 'x400>' },
                    convert_options: { medium: '-quality 80', large: '-quality 80' },
                    processors: %i[thumbnail compression],
                    url: '/upload/:class/:attachment/:id_partition/:style/:filename',
                    path: ':rails_root/public/upload/:class/:attachment/:id_partition/:style/:filename',
                    default_url: '/home/.../kitteh.jpeg'

TypeError: no implicit conversion of nil into String

I have this error on the production server (FreeBSD) while locally everything works.
So I thought that the compression might not work due to optipng but running it manually on a png file optipng -o 5 file.png on the server works perfectly fine

TypeError: no implicit conversion of nil into String
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/base.rb", line 34, in join
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/base.rb", line 34, in command_path
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/jpeg.rb", line 21, in make
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/base.rb", line 13, in make
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/paperclip/compression.rb", line 17, in make_jpeg
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-compression-0.3.6/lib/paperclip-compression/paperclip/compression.rb", line 7, in make
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/processor.rb", line 33, in make
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 522, in block in post_process_style
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 521, in each
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 521, in inject
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 521, in post_process_style
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 512, in block in post_process_styles
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 511, in each
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 511, in post_process_styles
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 503, in block (2 levels) in post_process
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 425, in _run__2992332529639714429__logo_post_process__2532431087528189716__callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 405, in __run_callback
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 385, in _run_logo_post_process_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 81, in run_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/callbacks.rb", line 36, in run_paperclip_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 501, in block in post_process
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 403, in _run__2992332529639714429__post_process__2532431087528189716__callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 405, in __run_callback
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 385, in _run_post_process_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 81, in run_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/callbacks.rb", line 36, in run_paperclip_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 500, in post_process
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 456, in post_process_file
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/attachment.rb", line 108, in assign
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/paperclip-4.2.1/lib/paperclip/has_attached_file.rb", line 66, in block in define_setter
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/attribute_assignment.rb", line 85, in block in assign_attributes
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/attribute_assignment.rb", line 78, in each
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/attribute_assignment.rb", line 78, in assign_attributes
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/persistence.rb", line 216, in block in update_attributes
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/transactions.rb", line 313, in block in with_transaction_returning_status
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/connection_adapters/abstract/database_statements.rb", line 192, in transaction
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/transactions.rb", line 208, in transaction
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/transactions.rb", line 311, in with_transaction_returning_status
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/persistence.rb", line 215, in update_attributes
  File "/usr/home/mars/projects/sdj/releases/20150129092044/app/controllers/account/company_controller.rb", line 24, in update_logo
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/implicit_render.rb", line 4, in send_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/abstract_controller/base.rb", line 167, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/rendering.rb", line 10, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/abstract_controller/callbacks.rb", line 18, in block in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 448, in block in _run__3563959746979386811__process_action__2602670410999237866__callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 215, in block in _conditional_callback_around_842
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/vanity-1.8.3/lib/vanity/frameworks/rails.rb", line 104, in vanity_context_filter
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 214, in _conditional_callback_around_842
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 414, in _run__3563959746979386811__process_action__2602670410999237866__callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 405, in __run_callback
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 385, in _run_process_action_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 81, in run_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/abstract_controller/callbacks.rb", line 17, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/rescue.rb", line 29, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/instrumentation.rb", line 30, in block in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/notifications.rb", line 123, in block in instrument
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/notifications/instrumenter.rb", line 20, in instrument
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/notifications.rb", line 123, in instrument
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/instrumentation.rb", line 29, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/params_wrapper.rb", line 207, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/railties/controller_runtime.rb", line 18, in process_action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/abstract_controller/base.rb", line 121, in process
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/abstract_controller/rendering.rb", line 45, in process
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal.rb", line 203, in dispatch
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal/rack_delegation.rb", line 14, in dispatch
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_controller/metal.rb", line 246, in block in action
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/routing/route_set.rb", line 73, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/routing/route_set.rb", line 73, in dispatch
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/routing/route_set.rb", line 36, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/journey-1.0.4/lib/journey/router.rb", line 68, in block in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/journey-1.0.4/lib/journey/router.rb", line 56, in each
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/journey-1.0.4/lib/journey/router.rb", line 56, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/routing/route_set.rb", line 608, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/warden-1.2.3/lib/warden/manager.rb", line 35, in block in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/warden-1.2.3/lib/warden/manager.rb", line 34, in catch
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/warden-1.2.3/lib/warden/manager.rb", line 34, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/best_standards_support.rb", line 17, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/etag.rb", line 23, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/conditionalget.rb", line 35, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/head.rb", line 14, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/params_parser.rb", line 21, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/flash.rb", line 242, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/session/abstract/id.rb", line 210, in context
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/session/abstract/id.rb", line 205, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/cookies.rb", line 341, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/query_cache.rb", line 64, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activerecord-3.2.21/lib/active_record/connection_adapters/abstract/connection_pool.rb", line 479, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/callbacks.rb", line 28, in block in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 405, in _run__3889086744914438778__call__2532431087528189716__callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 405, in __run_callback
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 385, in _run_call_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/callbacks.rb", line 81, in run_callbacks
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/callbacks.rb", line 27, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/remote_ip.rb", line 31, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rollbar-1.3.1/lib/rollbar/middleware/rails/rollbar.rb", line 24, in block in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rollbar-1.3.1/lib/rollbar.rb", line 747, in scoped
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rollbar-1.3.1/lib/rollbar/middleware/rails/rollbar.rb", line 22, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/debug_exceptions.rb", line 16, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rollbar-1.3.1/lib/rollbar/middleware/rails/show_exceptions.rb", line 22, in call_with_rollbar
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/show_exceptions.rb", line 56, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/rack/logger.rb", line 32, in call_app
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/rack/logger.rb", line 16, in block in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/tagged_logging.rb", line 22, in tagged
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/rack/logger.rb", line 16, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/actionpack-3.2.21/lib/action_dispatch/middleware/request_id.rb", line 22, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/methodoverride.rb", line 21, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/runtime.rb", line 17, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/activesupport-3.2.21/lib/active_support/cache/strategy/local_cache.rb", line 72, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-1.4.5/lib/rack/lock.rb", line 15, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-rewrite-1.4.1/lib/rack/rewrite.rb", line 24, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-cache-1.2/lib/rack/cache/context.rb", line 136, in forward
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-cache-1.2/lib/rack/cache/context.rb", line 143, in pass
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-cache-1.2/lib/rack/cache/context.rb", line 155, in invalidate
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-cache-1.2/lib/rack/cache/context.rb", line 71, in call!
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/rack-cache-1.2/lib/rack/cache/context.rb", line 51, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/engine.rb", line 484, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/application.rb", line 231, in call
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/railties-3.2.21/lib/rails/railtie/configurable.rb", line 30, in method_missing
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/unicorn-4.8.3/lib/unicorn/http_server.rb", line 576, in process_client
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/unicorn-4.8.3/lib/unicorn/http_server.rb", line 670, in worker_loop
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/unicorn-4.8.3/lib/unicorn/http_server.rb", line 525, in spawn_missing_workers
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/unicorn-4.8.3/lib/unicorn/http_server.rb", line 140, in start
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/gems/unicorn-4.8.3/bin/unicorn", line 126, in <top (required)>
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/bin/unicorn", line 23, in load
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/bin/unicorn", line 23, in <main>
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/bin/ruby_executable_hooks", line 15, in eval
  File "/home/mars/.rvm/gems/ruby-2.1.2@sdj/bin/ruby_executable_hooks", line 15, in <main>

Latest version of jpegtran

Would using latest version of jpegtran will improve the performance?

uninitialized constant PaperclipCompression::Jpeg::Cocaine

I get this error when saving image.

Could compression of `png` files also re-open the destination file?

We've discovered that when paperclip-compression compresses png files and swaps the file pointer from the original to the newly compressed version of the file; the newly compressed version of the file has a size of 0 bytes.

However, if you re-open the file (Such as in the jpg compressor), the size instance method correctly reflects the size of the file.

[26, 35] in /Users/zee/.rbenv/versions/2.2.2/lib/ruby/gems/2.2.0/gems/paperclip-compression-0.3.14/lib/paperclip-compression/png.rb
   26:
   27:     def process_file
   28:       Paperclip.run(command_path('optipng'), "#{@cli_opts} -clobber :src_path -out :dst_path", src_path: @src_path, dst_path: @dst_path)
   29:       require 'byebug'
   30:       byebug
=> 31:       @dst
   32:     end
   33:
   34:   end
   35: end
(byebug) @dst.size
0
(byebug) @dst.open
#<File:/var/folders/sx/s1fjq54x2rl0808_hwt52spr0000gn/T/fd7bc86e8c3159466e78d185b79251bb20160330-27063-qqnz5q.png>
(byebug) @dst.size
21417

This can cause problems with downstream processors (Such as paperclip-meta, which sets the meta attribute for the file size to 0)

I don't know what side effects could occur downstream (For instance, do some processors treat files with a size of 0 differently? Do any depend on this behavior for other reasons?)

Thoughts?

exist some way to compress original image?