Class: Trax::Core::FS::Listing

Inherits:
Pathname
  • Object
show all
Defined in:
lib/trax/core/fs.rb

Instance Method Summary collapse

Instance Method Details

#bitmap? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trax/core/fs.rb', line 204

def bitmap?
  return sample[0,2] == "MB"
end

#copy_to(destination) ⇒ Object 



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# File 'lib/trax/core/fs.rb', line 208

def copy_to(destination)
  ::FileUtils.cp(self, destination)
end

#gif? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trax/core/fs.rb', line 215

def gif?
  return sample[0,4] == "GIF8"
end

#image? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trax/core/fs.rb', line 219

def image?
  bitmap? || gif? || jpeg?
end

#jpeg? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/trax/core/fs.rb', line 223

def jpeg?
  return sample[0,4] == "\xff\xd8\xff\xe0"
end

#sample ⇒ Object 



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# File 'lib/trax/core/fs.rb', line 227

def sample
  @sample ||= begin
    f = ::File.open(self.to_s, 'rb')
    result = f.read(9)
    f.close
    result
  end
end