Module: ImageOptimizer::Shell::ClassMethods

Defined in:
lib/image_optimizer/shell.rb

Instance Method Summary collapse

Instance Method Details

#run_command(command) ⇒ Object 



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# File 'lib/image_optimizer/shell.rb', line 30

def run_command(command)
  `#{command}`
end

#which(cmd) ⇒ Object

Cross-platform way of finding an executable in the $PATH.



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# File 'lib/image_optimizer/shell.rb', line 19

def which(cmd)
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
  ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
    exts.each do |ext|
      exe = File.join(path, "#{cmd}#{ext}")
      return exe if File.executable? exe
    end
  end
  nil
end