From 74c7914f7e64c4381be379c0e91adae5f436c04b Mon Sep 17 00:00:00 2001
From: Clayton Coleman <ccoleman@redhat.com>
Date: Thu, 6 Nov 2014 21:07:24 -0500
Subject: [PATCH] Conversion functions to support PodTemplateSpec

---
 pkg/api/conversion.go         | 29 +++++++++++++
 pkg/api/v1beta1/conversion.go | 80 ++++++++++++++++++++++++++++++++---
 pkg/api/v1beta2/conversion.go | 80 ++++++++++++++++++++++++++++++++---
 3 files changed, 177 insertions(+), 12 deletions(-)

diff --git a/pkg/api/conversion.go b/pkg/api/conversion.go
index a43bd8f0554..401c1d53c43 100644
--- a/pkg/api/conversion.go
+++ b/pkg/api/conversion.go
@@ -45,6 +45,8 @@ func init() {
 			out.UUID = in.UID
 			return nil
 		},
+
+		// ContainerManifestList
 		func(in *ContainerManifestList, out *BoundPods, s conversion.Scope) error {
 			if err := s.Convert(&in.Items, &out.Items, 0); err != nil {
 				return err
@@ -76,5 +78,32 @@ func init() {
 			out.CreationTimestamp = in.CreationTimestamp
 			return nil
 		},
+
+		// Conversion between Manifest and PodSpec
+		func(in *PodSpec, out *ContainerManifest, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
+				return err
+			}
+			out.Version = "v1beta2"
+			return nil
+		},
+		func(in *ContainerManifest, out *PodSpec, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
+				return err
+			}
+			return nil
+		},
 	)
 }
diff --git a/pkg/api/v1beta1/conversion.go b/pkg/api/v1beta1/conversion.go
index 401091e53fc..15ca3f2eafa 100644
--- a/pkg/api/v1beta1/conversion.go
+++ b/pkg/api/v1beta1/conversion.go
@@ -256,12 +256,10 @@ func init() {
 				return err
 			}
 
-			if err := s.Convert(&in.DesiredState, &out.DesiredState, 0); err != nil {
-				return err
-			}
-			if err := s.Convert(&in.CurrentState, &out.CurrentState, 0); err != nil {
+			if err := s.Convert(&in.Spec, &out.DesiredState, 0); err != nil {
 				return err
 			}
+			out.CurrentState.Replicas = in.Status.Replicas
 			return nil
 		},
 		func(in *ReplicationController, out *newer.ReplicationController, s conversion.Scope) error {
@@ -275,10 +273,80 @@ func init() {
 				return err
 			}
 
-			if err := s.Convert(&in.DesiredState, &out.DesiredState, 0); err != nil {
+			if err := s.Convert(&in.DesiredState, &out.Spec, 0); err != nil {
 				return err
 			}
-			if err := s.Convert(&in.CurrentState, &out.CurrentState, 0); err != nil {
+			out.Status.Replicas = in.CurrentState.Replicas
+			return nil
+		},
+
+		func(in *newer.ReplicationControllerSpec, out *ReplicationControllerState, s conversion.Scope) error {
+			out.Replicas = in.Replicas
+			if err := s.Convert(&in.Selector, &out.ReplicaSelector, 0); err != nil {
+				return err
+			}
+			if in.TemplateRef != nil && in.Template == nil {
+				return errors.New("objects with a template ref cannot be converted to older objects, must populate template")
+			}
+			if in.Template != nil {
+				if err := s.Convert(in.Template, &out.PodTemplate, 0); err != nil {
+					return err
+				}
+			}
+			return nil
+		},
+		func(in *ReplicationControllerState, out *newer.ReplicationControllerSpec, s conversion.Scope) error {
+			out.Replicas = in.Replicas
+			if err := s.Convert(&in.ReplicaSelector, &out.Selector, 0); err != nil {
+				return err
+			}
+			out.Template = &newer.PodTemplateSpec{}
+			if err := s.Convert(&in.PodTemplate, out.Template, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+
+		func(in *newer.PodTemplateSpec, out *PodTemplate, s conversion.Scope) error {
+			if err := s.Convert(&in.Spec, &out.DesiredState.Manifest, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.ObjectMeta.Labels, &out.Labels, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+		func(in *PodTemplate, out *newer.PodTemplateSpec, s conversion.Scope) error {
+			if err := s.Convert(&in.DesiredState.Manifest, &out.Spec, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Labels, &out.ObjectMeta.Labels, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+
+		func(in *newer.PodSpec, out *ContainerManifest, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
+				return err
+			}
+			out.Version = "v1beta2"
+			return nil
+		},
+		func(in *ContainerManifest, out *newer.PodSpec, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
 				return err
 			}
 			return nil
diff --git a/pkg/api/v1beta2/conversion.go b/pkg/api/v1beta2/conversion.go
index 78f2a4b65fc..3a34b11ea63 100644
--- a/pkg/api/v1beta2/conversion.go
+++ b/pkg/api/v1beta2/conversion.go
@@ -186,12 +186,10 @@ func init() {
 				return err
 			}
 
-			if err := s.Convert(&in.DesiredState, &out.DesiredState, 0); err != nil {
-				return err
-			}
-			if err := s.Convert(&in.CurrentState, &out.CurrentState, 0); err != nil {
+			if err := s.Convert(&in.Spec, &out.DesiredState, 0); err != nil {
 				return err
 			}
+			out.CurrentState.Replicas = in.Status.Replicas
 			return nil
 		},
 		func(in *ReplicationController, out *newer.ReplicationController, s conversion.Scope) error {
@@ -205,10 +203,80 @@ func init() {
 				return err
 			}
 
-			if err := s.Convert(&in.DesiredState, &out.DesiredState, 0); err != nil {
+			if err := s.Convert(&in.DesiredState, &out.Spec, 0); err != nil {
 				return err
 			}
-			if err := s.Convert(&in.CurrentState, &out.CurrentState, 0); err != nil {
+			out.Status.Replicas = in.CurrentState.Replicas
+			return nil
+		},
+
+		func(in *newer.ReplicationControllerSpec, out *ReplicationControllerState, s conversion.Scope) error {
+			out.Replicas = in.Replicas
+			if err := s.Convert(&in.Selector, &out.ReplicaSelector, 0); err != nil {
+				return err
+			}
+			if in.TemplateRef != nil && in.Template == nil {
+				return errors.New("objects with a template ref cannot be converted to older objects, must populate template")
+			}
+			if in.Template != nil {
+				if err := s.Convert(in.Template, &out.PodTemplate, 0); err != nil {
+					return err
+				}
+			}
+			return nil
+		},
+		func(in *ReplicationControllerState, out *newer.ReplicationControllerSpec, s conversion.Scope) error {
+			out.Replicas = in.Replicas
+			if err := s.Convert(&in.ReplicaSelector, &out.Selector, 0); err != nil {
+				return err
+			}
+			out.Template = &newer.PodTemplateSpec{}
+			if err := s.Convert(&in.PodTemplate, out.Template, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+
+		func(in *newer.PodTemplateSpec, out *PodTemplate, s conversion.Scope) error {
+			if err := s.Convert(&in.Spec, &out.DesiredState.Manifest, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.ObjectMeta.Labels, &out.Labels, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+		func(in *PodTemplate, out *newer.PodTemplateSpec, s conversion.Scope) error {
+			if err := s.Convert(&in.DesiredState.Manifest, &out.Spec, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Labels, &out.ObjectMeta.Labels, 0); err != nil {
+				return err
+			}
+			return nil
+		},
+
+		func(in *newer.PodSpec, out *ContainerManifest, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
+				return err
+			}
+			out.Version = "v1beta2"
+			return nil
+		},
+		func(in *ContainerManifest, out *newer.PodSpec, s conversion.Scope) error {
+			if err := s.Convert(&in.Volumes, &out.Volumes, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.Containers, &out.Containers, 0); err != nil {
+				return err
+			}
+			if err := s.Convert(&in.RestartPolicy, &out.RestartPolicy, 0); err != nil {
 				return err
 			}
 			return nil