[TAP5-1377] Combine CSS files in production mode

• Type: New Feature
• Status: Open
• Priority: Major
• Resolution: Unresolved
• Affects Version/s: 5.3, 5.4, 5.2
• Component/s: tapestry-core
• Labels: desired_for_5.5 patch
• Assignee: Unassigned
• Reporter: Dan Adams
• Created: 18/Dec/10 21:59
• Updated: 12/Apr/16 12:17

Description

When in production mode, combine CSS files into a single file as is done with javascript resources.

• Any relative references to urls in the CSS contents should be absolutized based on the URL of the original CSS path so that things like background images continue to function.
• @import statements should also be unpacked so that designers have flexibility in how the files are structured.
• Any CSS files that have a class on the link element of "nocombine" or that have a non default/non-screen media should not be combined.
• Record a comment before each file saying which CSS file it originally came from

Issue Links

• is duplicated by: TAP5-1247 Tapestry should create a virtual CSS file that includes all CSS for a stack, just as it does with JavaScript
• relates to: TAP5-741 CSS files should be automatically minimalized, like JavaScript files
• relates to: TAP5-1470 Group CSS together to avoid IE's restriction of 31 external css files