refactor: temporarily move emulator to kro CLI and create separate module

Move the emulator package from `pkg/graph` to `cmd/kro` as it's only used by
the CLI's instance generation command. Create a separate `go.mod` for
`cmd/kro` to isolate CLI dependencies. This is a temporary change while we
work on the CLI module structure.

Author: a-hilaly

cmd/kro/commands/generate/instance.go

@@ -18,7 +18,9 @@ import (
 	"fmt"
 	"os"
 
+	"github.com/kro-run/kro/cmd/kro/emulator"
 	"github.com/kubernetes-sigs/kro/api/v1alpha1"
+	"github.com/kubernetes-sigs/kro/pkg/graph/schema"
 	"github.com/spf13/cobra"
 	"sigs.k8s.io/yaml"
 )
@@ -57,8 +59,21 @@ func generateInstance(rgd *v1alpha1.ResourceGraphDefinition) error {
 	if err != nil {
 		return fmt.Errorf("failed to create resource graph definition: %w", err)
 	}
+	em := emulator.NewEmulator()
+
+	crd := rgdGraph.Instance.GetCRD()
+	gvk := rgdGraph.Instance.GetCRD().GroupVersionKind()
+
+	s, err := schema.ConvertJSONSchemaPropsToSpecSchema(crd.Spec.Versions[0].Schema.OpenAPIV3Schema)
+	if err != nil {
+		return fmt.Errorf("failed to convert JSONSchemaProps to SpecSchema: %w", err)
+	}
+
+	emulatedObj, err := em.GenerateDummyCR(gvk, s)
+	if err != nil {
+		return fmt.Errorf("failed to generate dummy CR: %w", err)
+	}
 
-	emulatedObj := rgdGraph.Instance.GetEmulatedObject()
 	emulatedObj.SetAnnotations(map[string]string{"kro.run/version": "dev"})
 
 	delete(emulatedObj.Object, "status")

pkg/graph/emulator/emulator.go renamed to cmd/kro/emulator/emulator.go

@@ -0,0 +1,79 @@
+module github.com/kro-run/kro/cmd/kro
+
+go 1.24.0
+
+require (
+	github.com/go-echarts/go-echarts/v2 v2.6.5
+	github.com/kubernetes-sigs/kro v0.5.0
+	github.com/spf13/cobra v1.10.1
+	github.com/stretchr/testify v1.11.1
+	gopkg.in/yaml.v2 v2.4.0
+	k8s.io/apimachinery v0.34.1
+	k8s.io/client-go v0.34.1
+	k8s.io/kube-openapi v0.0.0-20250910181357-589584f1c912
+	sigs.k8s.io/yaml v1.6.0
+)
+
+require (
+	cel.dev/expr v0.19.1 // indirect
+	github.com/antlr4-go/antlr/v4 v4.13.0 // indirect
+	github.com/beorn7/perks v1.0.1 // indirect
+	github.com/cespare/xxhash/v2 v2.3.0 // indirect
+	github.com/common-nighthawk/go-figure v0.0.0-20210622060536-734e95fb86be // indirect
+	github.com/davecgh/go-spew v1.1.2-0.20180830191138-d8f796af33cc // indirect
+	github.com/emicklei/go-restful/v3 v3.12.2 // indirect
+	github.com/evanphx/json-patch/v5 v5.9.0 // indirect
+	github.com/fxamacker/cbor/v2 v2.9.0 // indirect
+	github.com/go-logr/logr v1.4.2 // indirect
+	github.com/go-openapi/jsonpointer v0.21.0 // indirect
+	github.com/go-openapi/jsonreference v0.21.0 // indirect
+	github.com/go-openapi/swag v0.23.0 // indirect
+	github.com/gobuffalo/flect v1.0.2 // indirect
+	github.com/gogo/protobuf v1.3.2 // indirect
+	github.com/google/cel-go v0.24.1 // indirect
+	github.com/google/gnostic-models v0.7.0 // indirect
+	github.com/google/uuid v1.6.0 // indirect
+	github.com/hashicorp/golang-lru/v2 v2.0.7 // indirect
+	github.com/inconshreveable/mousetrap v1.1.0 // indirect
+	github.com/josharian/intern v1.0.0 // indirect
+	github.com/json-iterator/go v1.1.12 // indirect
+	github.com/mailru/easyjson v0.7.7 // indirect
+	github.com/modern-go/concurrent v0.0.0-20180306012644-bacd9c7ef1dd // indirect
+	github.com/modern-go/reflect2 v1.0.3-0.20250322232337-35a7c28c31ee // indirect
+	github.com/munnerz/goautoneg v0.0.0-20191010083416-a7dc8b61c822 // indirect
+	github.com/pkg/errors v0.9.1 // indirect
+	github.com/pmezard/go-difflib v1.0.1-0.20181226105442-5d4384ee4fb2 // indirect
+	github.com/prometheus/client_golang v1.19.1 // indirect
+	github.com/prometheus/client_model v0.6.1 // indirect
+	github.com/prometheus/common v0.55.0 // indirect
+	github.com/prometheus/procfs v0.15.1 // indirect
+	github.com/spf13/pflag v1.0.9 // indirect
+	github.com/stoewer/go-strcase v1.2.0 // indirect
+	github.com/x448/float16 v0.8.4 // indirect
+	go.yaml.in/yaml/v2 v2.4.2 // indirect
+	go.yaml.in/yaml/v3 v3.0.4 // indirect
+	golang.org/x/exp v0.0.0-20240719175910-8a7402abbf56 // indirect
+	golang.org/x/net v0.43.0 // indirect
+	golang.org/x/oauth2 v0.28.0 // indirect
+	golang.org/x/sync v0.16.0 // indirect
+	golang.org/x/sys v0.35.0 // indirect
+	golang.org/x/term v0.34.0 // indirect
+	golang.org/x/text v0.28.0 // indirect
+	golang.org/x/time v0.9.0 // indirect
+	google.golang.org/genproto/googleapis/api v0.0.0-20240826202546-f6391c0de4c7 // indirect
+	google.golang.org/genproto/googleapis/rpc v0.0.0-20240826202546-f6391c0de4c7 // indirect
+	google.golang.org/protobuf v1.36.5 // indirect
+	gopkg.in/evanphx/json-patch.v4 v4.12.0 // indirect
+	gopkg.in/inf.v0 v0.9.1 // indirect
+	gopkg.in/yaml.v3 v3.0.1 // indirect
+	k8s.io/api v0.34.1 // indirect
+	k8s.io/apiextensions-apiserver v0.31.0 // indirect
+	k8s.io/apiserver v0.31.0 // indirect
+	k8s.io/klog/v2 v2.130.1 // indirect
+	k8s.io/utils v0.0.0-20250604170112-4c0f3b243397 // indirect
+	sigs.k8s.io/controller-runtime v0.19.0 // indirect
+	sigs.k8s.io/json v0.0.0-20241014173422-cfa47c3a1cc8 // indirect
+	sigs.k8s.io/randfill v1.0.0 // indirect
+	sigs.k8s.io/release-utils v0.11.0 // indirect
+	sigs.k8s.io/structured-merge-diff/v6 v6.3.0 // indirect
+)