Add Applications renderer

Signed-off-by: Raphaël Pinson <raphael.pinson@camptocamp.com>

internal/model/registry.go

@@ -207,7 +207,7 @@ var Registry = map[string]ResourceMeta{
 
 	// ArgoCD...
 	"argoproj.io/v1alpha1/applications": {
-		//Renderer:     &render.Application{},
+		Renderer:     &render.Application{},
 		TreeRenderer: &xray.Application{},
 	},
 }

internal/render/application.go

@@ -0,0 +1,53 @@
+package render
+
+import (
+	"fmt"
+
+	"github.com/argoproj/argo-cd/pkg/apis/application/v1alpha1"
+	"github.com/derailed/k9s/internal/client"
+	"k8s.io/apimachinery/pkg/apis/meta/v1/unstructured"
+	"k8s.io/apimachinery/pkg/runtime"
+)
+
+// Application renders an ArgoCD Application to screen.
+type Application struct{}
+
+// ColorerFunc colors a resource row.
+func (Application) ColorerFunc() ColorerFunc {
+	return DefaultColorer
+}
+
+// Header returns a header row.
+func (Application) Header(ns string) Header {
+	return Header{
+		HeaderColumn{Name: "NAME"},
+		HeaderColumn{Name: "SYNC STATUS"},
+		HeaderColumn{Name: "HEALTH STATUS"},
+		HeaderColumn{Name: "REVISION"},
+		HeaderColumn{Name: "AGE", Time: true, Decorator: AgeDecorator},
+	}
+}
+
+// Render renders a K8s resource to screen.
+func (Application) Render(o interface{}, ns string, r *Row) error {
+	raw, ok := o.(*unstructured.Unstructured)
+	if !ok {
+		return fmt.Errorf("Expected Application, but got %T", o)
+	}
+	var app v1alpha1.Application
+	err := runtime.DefaultUnstructuredConverter.FromUnstructured(raw.Object, &app)
+	if err != nil {
+		return err
+	}
+
+	r.ID = client.MetaFQN(app.ObjectMeta)
+	r.Fields = Fields{
+		app.Name,
+		string(app.Status.Sync.Status),
+		string(app.Status.Health.Status),
+		string(app.Status.Sync.Revision),
+		toAge(app.ObjectMeta.CreationTimestamp),
+	}
+
+	return nil
+}