Module: ImageCrush::Jpegtran

Defined in:: lib/image_crush/jpegtran.rb

Class Method Summary collapse

Class Method Details

.available? ⇒ `Boolean`

Returns:

(Boolean)



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# File 'lib/image_crush/jpegtran.rb', line 4

def self.available?
  @@available ||= ! %x{which jpegtran}.empty?
end

.crush(inpath, outpath) ⇒ `Object`

Raises:

(ImageCrush::CrushToolNotAvailable)

# File 'lib/image_crush/jpegtran.rb', line 8

def self.crush(inpath, outpath)
  raise ImageCrush::CrushToolNotAvailable unless available?
  %x{jpegtran -copy none -optimize #{inpath} > #{outpath}}
end