Created
May 5, 2014 13:21
-
-
Save dmnkhhn/68e8231b9b4b447bf2ba to your computer and use it in GitHub Desktop.
Command line SVG optimizer and base64 converter for CSS, based on https://gist.github.com/mrinterweb/11303706
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
#! /usr/bin/env ruby | |
# nokogiri is required below unless --no-modify option is specified | |
require 'optparse' | |
require 'tempfile' | |
@options = {} | |
OptionParser.new do |opts| | |
opts.banner = "Usage: svgoptimize [options] <path-to-svg-file>" | |
opts.on('-v', '--verbose', 'verbose logging') do |v| | |
@options[:verbose] = true | |
end | |
opts.on('-q', '--quiet', 'only result output is displayed') do |v| | |
@options[:quiet] = true | |
end | |
opts.on('--no-modify', 'disables svg xml element removal') do |v| | |
@options[:skip_xml_optimization] = true | |
end | |
opts.on('-c', '--copy', 'copies the output to the system clipboard') do |v| | |
@options[:copy_to_clipboard] = true | |
end | |
opts.on('--css', 'wraps the output in a background css rule') do |v| | |
@options[:css_wrap] = true | |
end | |
end.parse! | |
path = ARGV[0] | |
unless path | |
puts "you must specify a path to the svg file you'd like to be optimized." | |
exit 1 | |
end | |
unless File.exist?(path) | |
puts "path to file does not exist." | |
exit 1 | |
end | |
def log(str, mode=:normal) | |
if @options[:quiet] | |
nil | |
elsif mode == :normal | |
puts str | |
elsif @options[:verbose] && mode == :verbose | |
puts str | |
end | |
end | |
def kb(total_bytes) | |
sprintf "%.2f KB", total_bytes / 1024.0 | |
end | |
def size_to_kb(file) | |
kb file.size | |
end | |
input_file = File.open(path) | |
tmp_file = Tempfile.new("svg-optimize-#{File.basename(path)}") | |
tmp_file.write(input_file.read) | |
tmp_file.rewind | |
log "using temp file: #{tmp_file.path}", :verbose | |
log "Input file: \n#{input_file.read}", :verbose | |
log "Input SVG file size: #{size_to_kb(input_file)}" | |
unless @options[:skip_xml_optimization] | |
require 'nokogiri' | |
xml = Nokogiri::XML(tmp_file.read.gsub(%r~.*<svg ~mi, '<svg ')) | |
%w[description title].each do |node_name| | |
xml.css(node_name).remove | |
end | |
tmp_file.truncate(0) | |
tmp_file.rewind | |
# xml.remove_namespaces! | |
extraneous_attributes = xml.root.attributes.reject { |k| %w[version viewBox].include?(k) }.keys | |
extraneous_attributes.each { |attr| xml.root.delete(attr) } | |
xml_str = xml.to_xml(save_with: Nokogiri::XML::Node::SaveOptions::NO_DECLARATION).gsub(/>\s+</, "><") | |
tmp_file.write(xml_str) | |
tmp_file.rewind | |
log `cat #{tmp_file.path}`, :verbose | |
log "file size: #{`ls -lh #{tmp_file.path}`}", :verbose | |
end | |
base64tmp = Tempfile.new('svg-base64') | |
`cat #{tmp_file.path} | openssl base64 | tr -d '\n' > #{base64tmp.path}` | |
result = `cat #{base64tmp.path}` | |
log "Optimized size: #{kb result.length}" | |
log "" | |
if @options[:css_wrap] | |
result = "background: url(data:image/svg+xml;base64,#{result}) 0 0 no-repeat;" | |
f = File.open(base64tmp.path, 'w') | |
f.write(result) | |
f.close | |
end | |
puts result | |
if @options[:copy_to_clipboard] | |
clipboard_cmd = case RUBY_PLATFORM | |
when /darwin/ | |
'pbcopy' | |
else | |
'xclip' | |
end | |
`cat #{base64tmp.path} | #{clipboard_cmd}` | |
puts "\n output copied to clipboard" | |
end |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment