#!/usr/bin/env ruby
# This script by Jesper .
# It is placed in the public domain.
def crapout_no_hpricot
puts "hpricot is required to run cssclean."
exit -1
end
begin
require 'rubygems'
begin
require 'hpricot'
rescue LoadError
crapout_no_hpricot
end
rescue LoadError
begin
require 'hpricot'
rescue LoadError
crapout_no_hpricot
end
end
CSS_COMMENT_REGEX = /\/\*(.*?)\*\//m
css_selectors = {}
css_rules = []
longest_selector = 0
css_mode = true
html_files_count = 0
show_live_rules = false
argv = []
files = []
ARGV.each do |file|
if file == '--show-live-rules'
show_live_rules = true
next
end
unless File.exists? file
next
end
files << file
end
if files.length == 1
argv = [files[0], '--', files[0]]
end
if files.empty?
puts "There were no files to process. Usage is as follows:"
puts
puts " cssclean.rb [--show-live-rules] cssfile1[ cssfile2[ cssfileN]] -- htmlfile1[ htmlfile2[ htmlfileM]]"
puts " - or as -"
puts " cssclean.rb [--show-live-rules] singlefile"
puts
puts "Any CSS file or any HTML file including style elements (all style elements, regardless of the contents of the type attribute, will be processed) can be given for cssfile. Note that no CSS file imported through the @import CSS statement or the link HTML element are searched unless you specify them by hand. "
puts "When a single file is given, it will be evaluated as both the CSS file (by using the content in its style elements) and as the HTML file. "
exit
end
QUIET_ON_LIVE_RULES = !(show_live_rules)
styles = []
argv.each do |file|
if file == '--'
styles.each do |c|
rules = c.split '}'
rules.each_with_index do |r,ix|
(sels, unused) = r.split('{', 2)
if sels.strip == ""
next
end
sls = sels.split(',')
cssrule = []
sls.each do |sel|
sel.strip!
if (sel.length > longest_selector)
longest_selector = sel.length
end
css_selectors[sel] = []
cssrule << sel
end
css_rules << cssrule
end
end
css_mode = false
next
end
contents = File.read(file)
if (css_mode)
early = contents.gsub(CSS_COMMENT_REGEX, '')[0..1024].downcase
if early[' 0
matches+=1
end
end
if matches == 0
deadrules << rule
end
end
puts "#{deadrules.length} DEAD RULE#{deadrules.length == 1 ? '' : 'S'}"
unless deadrules.empty?
deadrules.each do |rule|
puts "#{rule.join(', ')}"
end
end