Better output for Docker commands (GoogleContainerTools#3607)

Signed-off-by: David Gageot <david@gageot.net>

pkg/skaffold/docker/image.go

@@ -31,7 +31,6 @@ import (
 	"github.com/docker/docker/pkg/jsonmessage"
 	"github.com/docker/docker/pkg/progress"
 	"github.com/docker/docker/pkg/streamformatter"
-	"github.com/docker/docker/pkg/term"
 	v1 "github.com/google/go-containerregistry/pkg/v1"
 	"github.com/pkg/errors"
 	"github.com/sirupsen/logrus"
@@ -220,11 +219,19 @@ func (l *localDaemon) Build(ctx context.Context, out io.Writer, workspace string
 	return imageID, nil
 }
 
+type descriptor interface {
+	Fd() uintptr
+}
+
 // streamDockerMessages streams formatted json output from the docker daemon
-// TODO(@r2d4): Make this output much better, this is the bare minimum
 func streamDockerMessages(dst io.Writer, src io.Reader, auxCallback func(jsonmessage.JSONMessage)) error {
-	fd, _ := term.GetFdInfo(dst)
-	return jsonmessage.DisplayJSONMessagesStream(src, dst, fd, false, auxCallback)
+	var termFd uintptr
+	f, isTerm := dst.(descriptor)
+	if isTerm {
+		termFd = f.Fd()
+	}
+
+	return jsonmessage.DisplayJSONMessagesStream(src, dst, termFd, isTerm, auxCallback)
 }
 
 // Push pushes an image reference to a registry. Returns the image digest.