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moby--moby/pkg/term/windows/windows.go

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// 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,
}
})
}