[#1889] Move netmap.go and exit.go from cli to cmd/internal/common

Signed-off-by: Anton Nikiforov <an.nikiforov@yadro.com>

cmd/internal/common/exit.go

@@ -0,0 +1,50 @@
+package common
+
+import (
+	"errors"
+	"fmt"
+	"os"
+
+	sdkstatus "github.com/TrueCloudLab/frostfs-sdk-go/client/status"
+	"github.com/spf13/cobra"
+)
+
+// ExitOnErr prints error and exits with a code that matches
+// one of the common errors from sdk library. If no errors
+// found, exits with 1 code.
+// Does nothing if passed error in nil.
+func ExitOnErr(cmd *cobra.Command, errFmt string, err error) {
+	if err == nil {
+		return
+	}
+
+	if errFmt != "" {
+		err = fmt.Errorf(errFmt, err)
+	}
+
+	const (
+		_ = iota
+		internal
+		aclDenied
+	)
+
+	var (
+		code int
+
+		internalErr = new(sdkstatus.ServerInternal)
+		accessErr   = new(sdkstatus.ObjectAccessDenied)
+	)
+
+	switch {
+	case errors.As(err, &internalErr):
+		code = internal
+	case errors.As(err, &accessErr):
+		code = aclDenied
+		err = fmt.Errorf("%w: %s", err, accessErr.Reason())
+	default:
+		code = internal
+	}
+
+	cmd.PrintErrln(err)
+	os.Exit(code)
+}