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Remove Rainpress pure ruby CSS compressor and simply use SCSS :)

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This commit is contained in:
Thomas Reynolds 2013-03-19 16:21:49 -07:00
parent 16d6ac156c
commit c4cf672640
2 changed files with 9 additions and 170 deletions
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11
middleman-more/lib/middleman-more/extensions/minify_css.rb
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@ -17,8 +17,7 @@ module Middleman
app.after_configuration do
chosen_compressor = config[:css_compressor] || options[:compressor] || begin
require "middleman-more/extensions/minify_css/rainpress"
::Rainpress
::Middleman::Extensions::MinifyCss::SassCompressor
end
# Setup Rack middleware to minify CSS
@ -30,6 +29,14 @@ module Middleman
alias :included :registered
end
class SassCompressor
def self.compress(style, options = {})
root_node = ::Sass::SCSS::CssParser.new(style, 'jammit-combined-input').parse
root_node.options = { :style => :compressed }
root_node.render.strip
end
end
# Rack middleware to look for CSS and compress it
class Rack

168
middleman-more/lib/middleman-more/extensions/minify_css/rainpress.rb
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@ -1,168 +0,0 @@
# == Information
#
# This is the main class of Rainpress, create an instance of it to compress
# your CSS-styles.
#
# Author:: Uwe L. Korn <uwelk@xhochy.org>
#
# <b>Options:</b>
#
# * <tt>:comments</tt> - if set to false, comments will not be removed
# * <tt>:newlines</tt> - if set to false, newlines will not be removed
# * <tt>:spaces</tt> - if set to false, spaces will not be removed
# * <tt>:colors</tt> - if set to false, colors will not be modified
# * <tt>:misc</tt> - if set to false, miscellaneous compression parts will be skipped
class Rainpress
# Quick-compress the styles.
# This eliminates the need to create an instance of the class
def self.compress(style, options = {})
self.new(style, options).compress!
end
def initialize(style, opts = {})
@style = style
@opts = {
:comments => true,
:newlines => true,
:spaces => true,
:colors => false,
:misc => true
}
@opts.merge! opts
end
# Run the compressions and return the newly compressed text
def compress!
remove_comments! if @opts[:comments]
remove_newlines! if @opts[:newlines]
remove_spaces! if @opts[:spaces]
shorten_colors! if @opts[:colors]
do_misc! if @opts[:misc]
@style
end
# Remove all comments out of the CSS-Document
#
# Only /* text */ comments are supported.
# Attention: If you are doing css hacks for IE using the comment tricks,
# they will be removed using this function. Please consider for IE css style
# corrections the usage of conditionals comments in your (X)HTML document.
def remove_comments!
input = @style
@style = ''
while input.length > 0 do
pos = input.index("/*");
# No more comments
if pos == nil
@style += input
input = '';
else # Comment beginning at pos
@style += input[0..(pos-1)] if pos > 0 # only append text if there is some
input = input[(pos+2)..-1]
# Comment ending at pos
pos = input.index("*/")
input = input[(pos+2)..-1]
end
end
end
# Remove all newline characters
#
# We take care of Windows(\r\n), Unix(\n) and Mac(\r) newlines.
def remove_newlines!
@style.gsub! /\n|\r/, ''
end
# Remove unneeded spaces
#
# 1. Turn mutiple spaces into a single
# 2. Remove spaces around ;:{},
# 3. Remove tabs
def remove_spaces!
@style.gsub! /\s*(\s|;|:|\}|\{|,)\s*/, '\1'
@style.gsub! "\t", ''
end
# Replace color values with their shorter equivalent
#
# 1. Turn rgb(,,)-colors into #-values
# 2. Shorten #AABBCC down to #ABC
# 3. Replace names with their shorter hex-equivalent
# * white -> #fff
# * black -> #000
# 4. Replace #-values with their shorter name
# * #f00 -> red
def shorten_colors!
# rgb(50,101,152) to #326598
@style.gsub! /rgb\s*\(\s*([0-9,\s]+)\s*\)/ do |match|
out = '#'
$1.split(',').each do |num|
out += '0' if num.to_i < 16
out += num.to_i.to_s(16) # convert to hex
end
out
end
# Convert #AABBCC to #ABC, keep if preceed by a '='
@style.gsub! /([^\"'=\s])(\s*)#([\da-f])\3([\da-f])\4([\da-f])\5/i, '\1#\3\4\5'
# At the moment we assume that colours only appear before ';' or '}' and
# after a ':', if there could be an occurence of a color before or after
# an other character, submit either a bug report or, better, a patch that
# enables Rainpress to take care of this.
# shorten several names to numbers
## shorten white -> #fff
@style.gsub! /:\s*white\s*(;|\})/, ':#fff\1'
## shorten black -> #000
@style.gsub! /:\s*black\s*(;|\})/, ':#000\1'
# shotern several numbers to names
## shorten #f00 or #ff0000 -> red
@style.gsub! /:\s*#f{1,2}0{2,4}(;|\})/i, ':red\1'
end
# Do miscellaneous compression methods on the style.
def do_misc!
# Replace 0(pt,px,em,%) with 0 but only when preceded by : or a white-space
@style.gsub! /([\s:]+)(0)(px|em|%|in|cm|mm|pc|pt|ex)/i, '\1\2'
# Replace :0 0 0 0(;|}) with :0(;|})
@style.gsub! /:0 0 0 0(;|\})/, ':0\1'
# Replace :0 0 0(;|}) with :0(;|})
@style.gsub! /:0 0 0(;|\})/, ':0\1'
# Replace :0 0(;|}) with :0(;|})
@style.gsub! /:0 0(;|\})/, ':0\1'
# Replace background-position:0; with background-position:0 0;
@style.gsub! 'background-position:0;', 'background-position:0 0;'
# Replace 0.6 to .6, but only when preceded by : or a white-space
@style.gsub! /[:\s]0+\.(\d+)/ do |match|
match.sub '0', '' # only first '0' !!
end
# Replace multiple ';' with a single ';'
@style.gsub! /[;]+/, ';'
# Replace ;} with }
@style.gsub! ';}', '}'
# Replace font-weight:normal; with 400
@style.gsub! /font-weight[\s]*:[\s]*normal[\s]*(;|\})/i,'font-weight:400\1'
@style.gsub! /font[\s]*:[\s]*normal[\s;\}]*/ do |match|
match.sub 'normal', '400'
end
# Replace font-weight:bold; with 700
@style.gsub! /font-weight[\s]*:[\s]*bold[\s]*(;|\})/,'font-weight:700\1'
@style.gsub! /font[\s]*:[\s]*bold[\s;\}]*/ do |match|
match.sub 'bold', '700'
end
end
end