Loop through all PHP files and add width and height to images that do not have them

gistfile1.rb

pattern = /<img\s+((alt|border|class|id|src|usemap|hspace|vspace)="[^"]+"\s*)+>/

# Invoke sips to try and find the image's original dimensions
# This returns both the widht and height.
def get_original_size_for(image)
  output = %x{sips -g pixelWidth -g pixelHeight "#{image}"}
  if output.scan(/pixelWidth:[^\d]*(\d+).*pixelHeight:[^\d](\d+)/im)
    return $1, $2
  else
    exit_show_tool_tip "Could not get image size from #{output.inspect}"
  end
end

Dir['../../**/*.php'].each do |filename|
  if (lines = File.readlines(filename)).grep(pattern).any?
    File.open filename, 'w+' do |f|
      lines.map! do |line|
        if line =~ pattern
          puts line
          line.gsub(/src="(.+?)"/) do |match|
            filename = File.join(File.dirname(__FILE__), '..', '..', $1)
            if File.exists?(filename)
              match + (' width="%d" height="%d"' % get_original_size_for(filename))
            else
              puts 'File not found: ' + filename
              match
            end
          end
        else
          line
        end
      end
      f.puts lines
    end
  end
end