Method: Exiftool#initialize

Defined in:
lib/exiftool.rb

#initialize(filenames, exiftool_opts = '') ⇒ Exiftool

Returns a new instance of Exiftool.



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# File 'lib/exiftool.rb', line 39

def initialize(filenames, exiftool_opts = '')
  @file2result = {}
  filenames = [filenames] if (filenames.is_a?(String) || filenames.is_a?(Pathname))
  unless filenames.empty?
    escaped_filenames = filenames.map do |f|
      Shellwords.escape(self.class.expand_path(f.to_s))
    end.join(' ')
    # I'd like to use -dateformat, but it doesn't support timezone offsets properly,
    # nor sub-second timestamps.
    cmd = "#{self.class.command} #{exiftool_opts} -j -coordFormat \"%.8f\" #{escaped_filenames} 2> /dev/null"
    json = `#{cmd}`.chomp
    raise ExiftoolNotInstalled if json == ''
    JSON.parse(json).each do |raw|
      result = Result.new(raw)
      @file2result[result.source_file] = result
    end
  end
end