Module: Scene7ize

Defined in:
lib/scene7ize.rb,
lib/scene7ize/cli.rb,
lib/scene7ize/version.rb

Defined Under Namespace

Classes: CLI

Constant Summary collapse

DEFAULT_REGEX = 
/(?<=['"])(?<dir_and_basename>((?!['"]).)*)\.(?<ext>gif|jpg|jpeg|png)(?=['"])/im
VERSION = 
"0.2.0"

Class Method Summary collapse

Class Method Details

.parse_file(scene7prefix, input_file, output_file = nil) ⇒ Object 



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# File 'lib/scene7ize.rb', line 31

def self.parse_file(scene7prefix, input_file, output_file = nil)
  file_content = File.read(input_file)
  input_file_path = File.dirname(input_file)

  replacement = file_content.gsub!(DEFAULT_REGEX) do |match|
    image_filename = "#{$~[:dir_and_basename]}.#{$~[:ext]}"

    # reconstruct image path relative to input file and open
    image_filename = File.join(input_file_path, image_filename)
    self.scene7url_from(scene7prefix, image_filename)
  end

  output_file = input_file if output_file.nil?
  File.open(output_file, "w") { |file| file.puts replacement }

end

.scene7url_from(scene7prefix, image_filename) ⇒ Object 



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# File 'lib/scene7ize.rb', line 9

def self.scene7url_from(scene7prefix, image_filename)
  # TODO: error handling
  image = MiniMagick::Image.open(image_filename)

  suffix = case image[:format].downcase
    when 'jpg', 'jpeg'
      '&qlt=100'
    when 'png'
      '&fmt=png-alpha'
    when 'gif'
      '&fmt=gif-alpha'
    else
      ""
  end

  basename = File.basename(image_filename, File.extname(image_filename))

  # TODO: error handle  URI::InvalidURIError
  URI.join(scene7prefix, "#{basename}?wid=#{image[:width]}&hei=#{image[:height]}#{suffix}").to_s
end