OS X System Service script for filing Jekyll images and putting Markdown links on the clipboard

Jekyll Filer.rb

require 'fileutils'
# An OS X System Service for quickly filing image files to a Jekyll blog folder,
# putting Markdown links to the files on the clipboard.
# Copyright Brett Terpstra 2013

# Config
# ======
# Where to store the images
base_path = '~/Sites/dev/octopress/source/uploads/'

# What to output as the base image path in the clipboard links
base_url = '/uploads' # or set "http://yoursite.com/uploads"

link_type = "liquid" # or "reference", defines generated Markdown link style

def e_sh(str)
  str.to_s.gsub(/(?=[^a-zA-Z0-9_.\/\-\x7F-\xFF\n])/, '\\').gsub(/\n/, "'\n'").sub(/^$/, "''")
end

input = ARGF
urls = []

input.each {|file_path|

  if File.basename(file_path) =~ /\.(jpeg|jpg|png|gif)$/
    extension = File.basename(file_path).match(/\.(jpeg|jpg|png|gif)$/)[0]
    target_file = File.basename(file_path).gsub(/#{extension}$/,'').strip

    target_dir = File.expand_path(base_path).gsub(/\/$/,'') + "/" + Time.now.strftime('%Y/%m/').strip
    FileUtils.mkdir_p target_dir unless (File.directory? target_dir)

    while File.exists?(File.join(target_dir, target_file + extension)) do
      target_file = target_file + "_00" unless target_file =~ /_\d+/
      target_file.next!
    end

    target = File.join(target_dir, target_file + extension)
    begin
      FileUtils.cp(file_path.strip,target)
      case File.extname(target)
      when /jpe?g/
        # log.info("Compressing JPEG")
        if File.exists?('/usr/local/bin/jpegoptim')
          res = %x{/usr/local/bin/jpegoptim -fopt --strip-all -m60 "#{target}"}
        end
      when /png/
        # log.info("Compressing PNG")
        if File.exists?('/usr/local/bin/pngcrush')
          res = %x{/usr/local/bin/pngcrush -q -ow "#{target}"}
        end
      end
      if link_type == "reference"
        urls.push("[#{target_file.gsub(/[^a-z0-9]/i,'')}]: #{target.gsub(/^#{File.expand_path(base_path).gsub(/\/$/,'')}/,"#{base_url.gsub(/\/$/,'')}")}")
      elsif link_type == "liquid"
        width = %x{sips -g pixelWidth "#{target}"|tail -n 1}.gsub(/pixelWidth: /,'').strip
        height = %x{sips -g pixelHeight "#{target}"|tail -n 1}.gsub(/pixelHeight: /,'').strip
        imgclass = width.to_i > 300 ? "aligncenter" : "alignright"
        urls.push("{% img #{imgclass} #{width} #{height} #{target.gsub(/^#{File.expand_path(base_path).gsub(/\/$/,'')}/,"#{base_url.gsub(/\/$/,'')}")} %}")
      else
        urls.push("![](#{target.gsub(/^#{File.expand_path(base_path).gsub(/\/$/,'')}/,"#{base_url.gsub(/\/$/,'')}")})")
      end
    rescue => e
      puts e
      %x{/usr/local/bin/growlnotify -a "Dropzone.app" -s -m "Couldn't file #{File.basename(file_path)}" -t "Jekyll Image Filer"} if File.exists?("/usr/local/bin/growlnotify")
    end
  end
}
%x{echo #{e_sh urls.join("\n")}|pbcopy}
%x{/usr/local/bin/growlnotify -a "Automator.app" -s -m "Filed #{urls.length.to_s} images, urls in clipboard"} if File.exists?("/usr/local/bin/growlnotify")