Dependencies added

Signed-off-by: rcmadhankumar <rcmadhankumar@gmail.com>

pkg/packageinstall/dependencies.go

@@ -0,0 +1,78 @@
+// Copyright 2023 VMware, Inc.
+// SPDX-License-Identifier: Apache-2.0
+
+package packageinstall
+
+import (
+	"context"
+	"fmt"
+
+	packagingv1alpha1 "github.com/vmware-tanzu/carvel-kapp-controller/pkg/apis/packaging/v1alpha1"
+	"github.com/vmware-tanzu/carvel-kapp-controller/pkg/apiserver/apis/datapackaging/v1alpha1"
+	versionsv1alpha1 "github.com/vmware-tanzu/carvel-vendir/pkg/vendir/versions/v1alpha1"
+	"k8s.io/apimachinery/pkg/api/errors"
+	metav1 "k8s.io/apimachinery/pkg/apis/meta/v1"
+)
+
+func (pi *PackageInstallCR) reconcileDependencies(pkg v1alpha1.Package) error {
+	var dependencyList []v1alpha1.Package
+	// Check if packages exist in the cluster
+	for _, dep := range pkg.Spec.Dependencies {
+
+		if dep.Package != nil {
+			pkg, err := pi.getPkgVersion(dep.Package.RefName, &versionsv1alpha1.VersionSelectionSemver{
+				Constraints: dep.Package.Version,
+			})
+			if err != nil {
+				if errors.IsNotFound(err) {
+					continue
+				}
+				return err
+			}
+			dependencyList = append(dependencyList, pkg)
+		}
+
+	}
+
+	// Check if the packages are installed
+	for _, dep := range dependencyList {
+		pkgiName := dep.Spec.RefName + "." + dep.Spec.Version
+		pkgi, err := pi.kcclient.PackagingV1alpha1().PackageInstalls(pi.model.Namespace).Get(context.TODO(), pkgiName, metav1.GetOptions{})
+		if err != nil {
+			if !errors.IsNotFound(err) {
+				// do we need to ignore this and continue?
+				return err
+			}
+
+			pkgi = &packagingv1alpha1.PackageInstall{
+				TypeMeta: pi.model.TypeMeta,
+				ObjectMeta: metav1.ObjectMeta{
+					Name:      pkgiName,
+					Namespace: pi.model.Namespace,
+					Annotations: map[string]string{
+						"kapp-controller.carvel.dev/owner": "PackageInstall/" + pi.model.Name,
+					},
+				},
+				Spec: packagingv1alpha1.PackageInstallSpec{
+					ServiceAccountName: pi.model.Spec.ServiceAccountName,
+					PackageRef: &packagingv1alpha1.PackageRef{
+						RefName: dep.Spec.RefName,
+						VersionSelection: &versionsv1alpha1.VersionSelectionSemver{
+							Constraints: dep.Spec.Version,
+						},
+					},
+					DefaultNamespace: pi.model.Spec.DefaultNamespace,
+					Dependencies:     packagingv1alpha1.Dependencies{},
+				},
+			}
+
+			_, err = pi.kcclient.PackagingV1alpha1().PackageInstalls(pi.model.Namespace).Create(context.TODO(), pkgi, metav1.CreateOptions{})
+			if err != nil {
+				// do we need to ignore this and continue?
+				return fmt.Errorf("Unable to create the packageinstall for the package %s: %s", dep.Name, err)
+			}
+		}
+
+	}
+	return nil
+}