fix: deprecated docker field leads to failure of nydusify check

`NydusImage.Config.Config.ArgsEscaped` is present only for legacy compatibility
with Docker and should not be used by new image builders. Nydusify (1.6 and
above) ignores it, which is an expected behavior.

This pr ignores comparision of it in nydusify checking, which leads to failure.

Signed-off-by: 泰友 <cuichengxu.ccx@antgroup.com>

contrib/nydusify/pkg/checker/rule/manifest.go

@@ -80,6 +80,20 @@ func (rule *ManifestRule) Validate() error {
 
 	// Check Nydus image config with OCI image
 	if rule.SourceParsed.OCIImage != nil {
+
+		//nolint:staticcheck
+		// ignore static check SA1019 here. We have to assign deprecated field.
+		//
+		// Skip ArgsEscaped's Check
+		//
+		//   This field is present only for legacy compatibility with Docker and
+		// should not be used by new image builders. Nydusify (1.6 and above)
+		// ignores it, which is an expected behavior.
+		//   Also ignore it in check.
+		//
+		//   Addition: [ArgsEscaped in spec](https://github.com/opencontainers/image-spec/pull/892)
+		rule.TargetParsed.NydusImage.Config.Config.ArgsEscaped = rule.SourceParsed.OCIImage.Config.Config.ArgsEscaped
+
 		ociConfig, err := json.Marshal(rule.SourceParsed.OCIImage.Config.Config)
 		if err != nil {
 			return errors.New("marshal oci image config")

contrib/nydusify/pkg/checker/rule/manifest_test.go

@@ -0,0 +1,38 @@
+package rule
+
+import (
+	"testing"
+
+	"github.com/dragonflyoss/image-service/contrib/nydusify/pkg/parser"
+	"github.com/stretchr/testify/assert"
+
+	v1 "github.com/opencontainers/image-spec/specs-go/v1"
+)
+
+func TestManifestRuleValidate_IgnoreDeprecatedField(t *testing.T) {
+	source := &parser.Parsed{
+		NydusImage: &parser.Image{
+			Config: v1.Image{
+				Config: v1.ImageConfig{
+					ArgsEscaped: true, // deprecated field
+				},
+			},
+		},
+	}
+	target := &parser.Parsed{
+		NydusImage: &parser.Image{
+			Config: v1.Image{
+				Config: v1.ImageConfig{
+					ArgsEscaped: false,
+				},
+			},
+		},
+	}
+
+	rule := ManifestRule{
+		SourceParsed: source,
+		TargetParsed: target,
+	}
+
+	assert.Nil(t, rule.Validate())
+}