Rails 3.1 Asset pipeline
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The document outlines the features and release schedule for Rails 3.1, including support for SASS, CoffeeScript, asset packaging, and improved static filename caching. It details asset directory structures, implementation of JavaScript and CSS compilation through Sprockets, and deployment strategies. Additionally, it mentions the need for a JavaScript runtime and provides instructions for asset referencing and precompilation in a production environment.
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Rails 3.1 Asset pipeline
- 1. Rails 3.1 Asset Pipeline Jeremy Olliver
- 2. Rails 3.1 Release Schedule • August 8th: Rails 3.1.0.rc6 • August 22nd: Rails 3.1.0
- 3. Native Support for • Sass • Coffeescript • asset packaging/minification/compression • cache friendly static filenames (hash in filename not mtime querystring)
- 4. Assets Directory Structure app assets javascripts stylesheets images optional: lib/assets (non-application specific assets) vendor/assets (third party assets, css/js plugins etc)
- 5. How Does it Work? • manifest files specify js/css files to load • app/assets/javascripts/application.js • app/assets/stylesheets/application.css • Only needs changing for specifying load order • Picks up coffeescript, javascript, css, and sass files
- 6. Coffeescript / JS compilation • provided through sprockets and execjs • Need to include a javascript runtime such as node.js or a native ruby implementation such as gems ‘therubyracer’ or ‘mustang’
- 7. Sass / Compass / Referencing assets • use compass ‘rails31’ branch • use sass (scss) it’s awesome • referencing assets/images requires erb and asset_path helper
- 8. Deployment • updated capistrano version coming up • in the meantime: • rake assets:precompile RAILS_ENV=production • compiles to public/assets