fix: dockerfile relative path when running in docker

docs: update README.md to current command line api
fix: command line output white for default level

Signed-off-by: Adphi <philippe.adrien.nousse@gmail.com>

cmd/d2vm/build.go

@@ -67,7 +67,7 @@ var (
 				for i, v := range dargs {
 					switch v {
 					case file:
-						rel, err := filepath.Rel(in, file)
+						rel, err := filepath.Rel(in, dockerFileAbsPath)
 						if err != nil {
 							return fmt.Errorf("failed to construct Dockerfile container paths: %w", err)
 						}

cmd/d2vm/main.go

@@ -87,6 +87,7 @@ const (
 	red    = 31
 	yellow = 33
 	blue   = 36
+	white  = 39
 	gray   = 90
 )
 
@@ -100,14 +101,12 @@ func (f *logfmtFormatter) Format(entry *logrus.Entry) ([]byte, error) {
 	switch entry.Level {
 	case logrus.DebugLevel, logrus.TraceLevel:
 		c = color.New(gray)
-	// case logrus.InfoLevel:
-	//	c = color.New(blue)
 	case logrus.WarnLevel:
 		c = color.New(yellow)
 	case logrus.ErrorLevel, logrus.FatalLevel, logrus.PanicLevel:
 		c = color.New(red)
 	default:
-		c = color.New(color.FgWhite)
+		c = color.New(white)
 	}
 	msg := entry.Message
 	if len(entry.Message) > 0 && entry.Level < logrus.DebugLevel {