# Image compressor processor for Sprockets

[![Build Status](https://travis-ci.org/botandrose/sprockets-image_compressor.svg?branch=master)](https://travis-ci.org/botandrose/sprockets-image_compressor)

Sprockets preprocessor to losslessly compress .png and .jpg images using [pngcrush](http://pmt.sourceforge.net/pngcrush/) and [jpegoptim](http://www.kokkonen.net/tjko/projects.html).

## Integration with Rails 3.1+

Just add this gem to your Gemfile:

```ruby
gem 'sprockets-image_compressor'
````

The gem ships with a Railtie which will automatically register the compressor preprocessors.

## Now with vendored binary fallbacks / Heroku support!

If the environment doesn't have pngcrush and/or jpegoptim installed, the gem will fall back on binaries packaged with the gem. Currently, only 32bit and 64bit linux binaries are included. Pull requests welcome for other architectures!

## Gotchas

If you have other sprockets processors registered for images, e.g. `sprockets-webp`, the relative order that they are required can matter. Please load `sprockets-image_compressor` _before_ the others:

```ruby
gem 'sprockets-image_compressor'
gem 'sprockets-webp'
```

See [#15](https://github.com/botandrose/sprockets-image_compressor/issues/15) for more information.

## TODO

* Provide configuration hooks
* Test Railtie

## Credits

* @nhogle for help with compiling and packaging the jpegoptim and pngcrush binaries
* @JakeTheSnake3p0 for Windows support
* @florentmorin for compatibility with sprockets-rails
* @dkubb for compatibility with Rails 4

## License

(MIT License) - Copyright (c) 2014 Micah Geisel


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sprockets-image_compressor

Micah Geisel

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sprockets-image_compressor

Image compressor processor for Sprockets

Integration with Rails 3.1+

Now with vendored binary fallbacks / Heroku support!

Gotchas

TODO

Credits

License

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