Question

I use codekit for writing less which it then converts to css automatically.

I don’t want rails to convert my less files to css, I rather codekit do it.

if I precompile the assets via

rake assets:precompile

I get

rake aborted!
cannot load such file -- less

How do I exclude a specific folder/file types from precompiling? (all my less files are in app/assets/stylesheets/less and the css (which I do want to be precompiled) are in app/assets/stylesheets/css

update

deleting application.less solves this but how do I excluding it from processing in the first place?

Answer 1

From the Asset Pipeline guide:

The default matcher for compiling files includes application.js,
application.css and all non-JS/CSS files (i.e., .coffee and .scss
files are not automatically included as they compile to JS/CSS):

[ Proc.new{ |path| !File.extname(path).in?(['.js', '.css']) }, /application.(css|js)$/ ]

If you have other manifests or individual stylesheets and JavaScript
files to include, you can add them to the precompile array:

config.assets.precompile += ['admin.js', 'admin.css', 'swfObject.js']

So, I would say that your solution is to modify config.assets.precompile to exclude .less files. Maybe something like this (in a suitable environment file, like config/environments/production.rb):

config.assets.precompile = [ Proc.new{ |path| !File.extname(path).in?(['.js', '.css', '.less']) }, /application.(css|js)$/ ]