Image optimization for Grunt using imgo

Installation

This plugin requires Grunt 0.4.

Install imgo (see How to install imgo on OS X below for instructions).

npm install grunt-imgo --save-dev

Add to your Gruntfile.js:

grunt.loadNpmTasks('grunt-imgo');

Then add section named imgo inside grunt.initConfig(). See next section for details.

Parameters

src string|array

Images list: PNG, GIF or JPEG. String or array. Wildcards are supported.

dest string

Destination path for images copying before optimizing.

icons: {
    src: 'static/dev/img/*.*',
    dest: 'static/build/img/'
}

options string

Any options you want to pass to imgo.

icons: {
    src: 'icons/*.png',
    options: '-m -b'
}

skip boolean

If true task will not be ran. In example, you can skip imgo on Windows (becase of difficult installation):

skip: require('os').platform() === 'win32'

Gruntfile Example

module.exports = function(grunt) {
    grunt.initConfig({
        imgo: {
            icons: {
                src: 'icons/*.png'
            }
        }
    });
    grunt.loadNpmTasks('grunt-imgo');
    grunt.registerTask('default', ['imgo']);
};

How to install imgo on OS X

Install Homebrew.

Run following commands in terminal:

brew install exiftool imagemagick optipng libjpeg gifsicle
 
formulas='pngout.rb  defluff.rb cryopng.rb imgo.rb'
for package in $formulas
do
  brew install "https://raw.github.com/imgo/imgo-tools/master/Formula/"$package
done

You may need to use sudo for brew, depending on your setup.

Release History

2013-06-18 v0.1.1

• dest option (by @smolnikov).
• Fix options: cannot parse several keys.
• Verbose output of imgo command.

2013-02-18 v0.1.0

• Grunt 0.4 support.
• file option renamed to src.

License

The MIT License, see the included License.md file.