text: // These files implement ANSI-aware input and output streams for use by the Docker Windows client.
  // When asked for the set of standard streams (e.g., stdin, stdout, stderr), the code will create
  // and return pseudo-streams that convert ANSI sequences to / from Windows Console API calls.
  
  package windows
  
  import (
  	"io/ioutil"
  	"os"
  	"sync"
  
  	ansiterm "github.com/Azure/go-ansiterm"
  	"github.com/Sirupsen/logrus"
  )
  
  var logger *logrus.Logger
  var initOnce sync.Once
  
  func initLogger() {
  	initOnce.Do(func() {
  		logFile := ioutil.Discard
  
  		if isDebugEnv := os.Getenv(ansiterm.LogEnv); isDebugEnv == "1" {
  			logFile, _ = os.Create("ansiReaderWriter.log")
  		}
  
  		logger = &logrus.Logger{
  			Out:       logFile,
  			Formatter: new(logrus.TextFormatter),
  			Level:     logrus.DebugLevel,
  		}
  	})
  }
  