Apache2::Filter::Minifier::CSS - CSS minifying output filter
<LocationMatch "\.css$"> PerlOutputFilterHandler Apache2::Filter::Minifier::CSS # if you need to supplement MIME-Type list PerlSetVar CssMimeType text/plain # if you want to explicitly specify the minifier to use #PerlSetVar CssMinifier CSS::Minifier::XS #PerlSetVar CssMinifier CSS::Minifier #PerlSetVar CssMinifier MY::Minifier::function </LocationMatch>
Apache2::Filter::Minifier::CSS is a Mod_perl2 output filter which minifies CSS using
Only CSS style-sheets are minified, all others are passed through unaltered.
Apache2::Filter::Minifier::CSS comes with a list of known acceptable MIME-Types for CSS style-sheets, but you can supplement that list yourself by setting the
CssMimeType PerlVar appropriately (use
PerlSetVar for a single new MIME-Type, or
PerlAddVar when you want to add multiple MIME-Types).
Given a choice, using
CSS::Minifier::XS is preferred over
CSS::Minifier, but we'll use whichever one you've got available. If you want to explicitly specify which minifier you want to use, set the
CssMinifier PerlVar to the name of the package/function that implements the minifier. Minification functions are expected to accept a single parameter (the CSS to be minified) and to return the minified CSS on completion. If you specify a package name, we look for a
minify() function in that package.
Minification does require additional CPU resources, and it is recommended that you use some sort of cache in order to keep this to a minimum.
Being that you're already running Apache2, though, here's some examples of a mod_cache setup:
# Cache root directory CacheRoot /path/to/your/disk/cache # Enable cache for "/css/" location CacheEnable disk /css/
# Cache size: 4 MBytes MCacheSize 4096 # Min object size: 128 Bytes MCacheMinObjectSize 128 # Max object size: 512 KBytes MCacheMaxObjectSize 524288 # Enable cache for "/css/" location CacheEnable mem /css/
Graham TerMarsch (firstname.lastname@example.org)
Many thanks to Geoffrey Young for writing
Apache::Clean, from which several things were lifted. :)
Copyright (C) 2007, Graham TerMarsch. All Rights Reserved.
This is free software; you can redistribute it and/or modify it under the same license as Perl itself.