bump reva

Signed-off-by: Jörn Friedrich Dreyer <jfd@butonic.de>

vendor/github.com/shamaton/msgpack/v2/internal/common/common.go

@@ -1,23 +1,42 @@
 package common
 
-import "reflect"
+import (
+	"reflect"
+	"strings"
+)
 
 // Common is used encoding/decoding
 type Common struct {
 }
 
 // CheckField returns flag whether should encode/decode or not and field name
-func (c *Common) CheckField(field reflect.StructField) (bool, string) {
+func (c *Common) CheckField(field reflect.StructField) (public, omit bool, name string) {
 	// A to Z
-	if c.isPublic(field.Name) {
-		if tag := field.Tag.Get("msgpack"); tag == "-" {
-			return false, ""
-		} else if len(tag) > 0 {
-			return true, tag
-		}
-		return true, field.Name
+	if !c.isPublic(field.Name) {
+		return false, false, ""
 	}
-	return false, ""
+	tag := field.Tag.Get("msgpack")
+	if tag == "" {
+		return true, false, field.Name
+	}
+
+	parts := strings.Split(tag, ",")
+	// check ignore
+	if parts[0] == "-" {
+		return false, false, ""
+	}
+	// check omitempty
+	for _, part := range parts[1:] {
+		if part == "omitempty" {
+			omit = true
+		}
+	}
+	// check name
+	name = field.Name
+	if parts[0] != "" {
+		name = parts[0]
+	}
+	return true, omit, name
 }
 
 func (c *Common) isPublic(name string) bool {