Module: Mozjpeg

Defined in:
lib/mozjpeg.rb,
lib/mozjpeg/version.rb

Constant Summary collapse

VERSION = 
"0.0.2"

Class Method Summary collapse

Class Method Details

.cjpeg_path ⇒ Object 



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# File 'lib/mozjpeg.rb', line 10

def self.cjpeg_path
  base_path = File.expand_path(File.join(__dir__, '../vendor/mozjpeg'))
  
  mozjpeg_path = begin
    if OS.windows?
      'win/cjpeg.exe'
    elsif OS.mac? && OS.bits == 64
      'darwin/cjpeg'
    elsif OS.linux? && OS.bits == 64
      'linux/cjpeg'
    else
      raise "MozJPEG for your platform was not found."
    end
  end

  File.join(base_path, mozjpeg_path)
end

.compress(src, dst, options = {}) ⇒ Object

TODO improve Accepts instances of File



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# File 'lib/mozjpeg.rb', line 30

def self.compress(src, dst, options = {})
  args = options.fetch(:arguments, '-quality 70 -quant-table 2 -notrellis')
  return `"#{Mozjpeg.cjpeg_path}" #{args} -outfile "#{dst.path}" "#{src.path}" 2>&1`
end

.supported? ⇒ Boolean

Returns:

  • (Boolean) 


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# File 'lib/mozjpeg.rb', line 6

def self.supported?
  cjpeg_path rescue false
end