gem install asset_sweeper It's also available in plugin form. You can install a plugin by following command. ruby script/plugin install git://github.com/anilg/asset_sweeper.git
Run rake task
rake asset_sweeper:remove_unused_images -t
This rake task scans for all images (in “public/images” folder) (.jpg, .png, .gif) in application (rb, html, css, js files) and create a folder named unused in applications root directory and move images which are not used in application.
But if image name is constructed dynamically in code this script will miss such images.
rake asset_sweeper:list_unused_stylesheets -t
This rake task scans for all stylesheet names present in “public/stylesheets/*” folder in application (html files i.e. views) and list down as ununsed if it doesnt get any stylesheet being included in any of views in application.
But this rake task also lists all third party stylesheets as unused as it doesnt get their names in views. Also if stylesheets names are being constructed programatically even those stylesheets will be listed as ununsed ones. So before actually deleting stylesheets you have to verify manually whether that is being actually used or not.
rake asset_sweeper:find_missing_images -t
This rake task will scan through all stylesheets present in application and verifies whether called images are present in application and list down all images path which are not present in application.
Copyright © 2011 Anil Galve
Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the “Software”), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions:
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