Refactor into RenderAgent and ApplyAgent

clitools/pkg/render/helpers.go

@@ -0,0 +1,74 @@
+package render
+
+import (
+	"bytes"
+	"fmt"
+	"strings"
+
+	corev1 "k8s.io/api/core/v1"
+	"k8s.io/apimachinery/pkg/runtime"
+	"sigs.k8s.io/yaml"
+)
+
+func renderObjects(objs []runtime.Object) (string, error) {
+	var buf bytes.Buffer
+
+	for i, obj := range objs {
+		if i > 0 {
+			if _, err := fmt.Fprintln(&buf, "---"); err != nil {
+				return "", err
+			}
+		}
+
+		b, err := renderObjectYAML(obj)
+		if err != nil {
+			return "", err
+		}
+
+		if _, err := buf.Write(b); err != nil {
+			return "", err
+		}
+	}
+
+	return buf.String(), nil
+}
+
+func renderObjectYAML(obj runtime.Object) ([]byte, error) {
+	b, err := yaml.Marshal(obj)
+	if err != nil {
+		return nil, err
+	}
+
+	var m map[string]any
+	if err := yaml.Unmarshal(b, &m); err != nil {
+		return nil, err
+	}
+
+	delete(m, "status")
+
+	return yaml.Marshal(m)
+}
+
+func imagePullSecrets(names []string) []corev1.LocalObjectReference {
+	if len(names) == 0 {
+		return nil
+	}
+
+	refs := make([]corev1.LocalObjectReference, 0, len(names))
+	for _, name := range names {
+		name = strings.TrimSpace(name)
+		if name == "" {
+			continue
+		}
+
+		refs = append(refs, corev1.LocalObjectReference{
+			Name: name,
+		})
+	}
+
+	if len(refs) == 0 {
+		return nil
+	}
+
+	return refs
+}