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Contents
require 'tilt'
module Sprockets
# This custom Tilt handler replaces the one built into Tilt. The
# main difference is that it uses a custom importer that plays nice
# with sprocket's caching system.
#
# See `SassImporter` for more infomation.
class SassTemplate < Tilt::Template
self.default_mime_type = 'text/css'
def self.engine_initialized?
defined?(::Sass::Engine) && defined?(::Sass::Script::Functions) &&
::Sass::Script::Functions < Sprockets::SassFunctions
end
def initialize_engine
# Double check constant to avoid tilt warning
unless defined? ::Sass
require_template_library 'sass'
end
# Install custom functions. It'd be great if this didn't need to
# be installed globally, but could be passed into Engine as an
# option.
::Sass::Script::Functions.send :include, Sprockets::SassFunctions
end
def prepare
end
def syntax
:sass
end
def evaluate(context, locals, &block)
# Use custom importer that knows about Sprockets Caching
cache_store = SassCacheStore.new(context.environment)
options = {
:filename => eval_file,
:line => line,
:syntax => syntax,
:cache_store => cache_store,
:importer => SassImporter.new(context.pathname.to_s),
:load_paths => context.environment.paths.map { |path| SassImporter.new(path.to_s) },
:sprockets => {
:context => context,
:environment => context.environment
}
}
result = ::Sass::Engine.new(data, options).render
# Track all imported files
filenames = ([options[:importer].imported_filenames] + options[:load_paths].map(&:imported_filenames)).flatten.uniq
filenames.each { |filename| context.depend_on(filename) }
result
rescue ::Sass::SyntaxError => e
# Annotates exception message with parse line number
context.__LINE__ = e.sass_backtrace.first[:line]
raise e
end
end
end
Version data entries
9 entries across 9 versions & 4 rubygems