Generate twitter bootstrap sprite files for different icon libraries.
Supported icon libraries: Glyph Icon, Figue Icons and Generic Folders :)

I bought Glyph Icons Pro Library recently and found that it is really hard to create sprite.less file and sprite image file for 400 icons. I am not a designer and I do not have PS or other tools to generate big sprite file from list of small files.

So, that is why I have created that python script.

1. mkdir ~/icons
2. git clone git://github.com/plar/bootstrap-sprite-generator.git ~/icons
3. cd ~/icons
4. unzip glyphicons_pro.zip -d ~/icons
   
5. cd ~/icons
6. ./bootstrap_sprite_generator.py -t gi:normal

Load icons(normal) from glyphicons_pro/glyphicons/png directory...
glyphicons_073_signal.png: adjust icon name 'signal' to 'signal-radar'
glyphicons_079_signal.png: adjust icon name 'signal' to 'signal-network'
glyphicons_091_adjust.png: adjust icon name 'adjust' to 'adjust-contrast'
glyphicons_119_adjust.png: adjust icon name 'adjust' to 'adjust-eq'
glyphicons_222_share.png: adjust icon name 'share' to 'share-arrow'
glyphicons_326_share.png: adjust icon name 'share' to 'share-point'
Total icons(normal): 400
Tile size: 36px x 30px
Sprite image size in tiles: 20x20
Sprite image size in pixels: 720x600
Creating sprite image glyphicons_output/sprites-pro.png...
Done
Creating sprite css glyphicons_output/sprites-pro.less...
Done

If you want to resize icons to smaller size you can use -r argument.

ie: ./bootstrap_sprite_generator.py -t gi:normal -r 24
All icons will be resized to 24x24 pixels if they aren't already and the sprite image and css files will be generated with the new icon sizes.

You can generate sprite image file and sprite css file for any set of icons. For example if you have fugue-icons in ~/icons/fugue-icons-3.0/icons directory then you can run generator as:

./bootstrap_sprite_generator.py -t gn:all -d ~/icons/fugue-icons-3.0/icons -o ~/icons/fugue-output

Load icons(all) from ~/icons/fugue-icons-3.0/icons directory...
Total icons(all): 3000
Tile size: 16px x 16px
Sprite image size in tiles: 55x55
Sprite image size in pixels: 880x880
Creating sprite image ~/icons/fugue-output/sprites-pro.png...
Done
Creating sprite css ~/icons/fugue-output/sprites-pro.less...
Done

usage: bootstrap_sprite_generator.py [options]

Generate bootstrap sprite files for different icon libraries.

optional arguments:
  -h, --help            show this help message and exit
  -d ICON_DIR           icon files directory
  -o OUTPUT_DIR         result files directory. if directory does not exist, 
                        it will be created automatically.
  -r RESIZE             resize original library icons to specific size(pixels)
  -m ADJUST_MAP         adjust icon name for specific file. It option can be
                        used multiply times. 
                        ie: -m glyphicons_079_signal.png:signal-strength
  -t {gi:normal,gi:large,gn:all}
                        sprite generator type