Method: File.which

Defined in:
lib/common/ext/file.rb

.which(cmd) ⇒ Object 



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# File 'lib/common/ext/file.rb', line 101

def self.which(cmd)
  return "" if not cmd
  exts = ENV['PATHEXT'] ? ENV['PATHEXT'].split(';') : ['']
  ENV['PATH'].split(File::PATH_SEPARATOR).each do |path|
    exts.each { |ext|
      exe = File.join(path, "#{cmd}#{ext}")
      if File.executable?(exe) && !File.directory?(exe)
        return File.dirname(exe.gsub(/[\\]/,'/'))
      end
    }
  end
  return ""
end