Add registry get command

This commit adds the registry get command
for the user to get the registry by ID.

Signed-off-by: Akshat <akshat25iiit@gmail.com>

cmd/registry/get_registry.go

@@ -0,0 +1,56 @@
+package registry
+
+import (
+	"context"
+	"fmt"
+	"strconv"
+
+	"github.com/akshatdalton/harbor-cli/cmd/constants"
+	"github.com/akshatdalton/harbor-cli/cmd/utils"
+	"github.com/goharbor/go-client/pkg/sdk/v2.0/client/registry"
+	"github.com/spf13/cobra"
+)
+
+type getRegistryOptions struct {
+	id int64
+}
+
+// NewGetRegistryCommand creates a new `harbor get registry` command
+func NewGetRegistryCommand() *cobra.Command {
+	var opts getRegistryOptions
+
+	cmd := &cobra.Command{
+		Use:   "registry [ID]",
+		Short: "get registry by id",
+		Args:  cobra.ExactArgs(1),
+		RunE: func(cmd *cobra.Command, args []string) error {
+			id, err := strconv.Atoi(args[0])
+			if err != nil {
+				fmt.Printf("Invalid argument: %s. Expected an integer.\n", args[0])
+				return err
+			}
+			opts.id = int64(id)
+
+			credentialName, err := cmd.Flags().GetString(constants.CredentialNameOption)
+			if err != nil {
+				return err
+			}
+			return runGetRegistry(opts, credentialName)
+		},
+	}
+
+	return cmd
+}
+
+func runGetRegistry(opts getRegistryOptions, credentialName string) error {
+	client := utils.GetClientByCredentialName(credentialName)
+	ctx := context.Background()
+	response, err := client.Registry.GetRegistry(ctx, &registry.GetRegistryParams{ID: opts.id})
+
+	if err != nil {
+		return err
+	}
+
+	utils.PrintPayloadInJSONFormat(response.GetPayload())
+	return nil
+}

cmd/root.go

@@ -4,6 +4,7 @@ import (
 	"github.com/akshatdalton/harbor-cli/cmd/constants"
 	"github.com/akshatdalton/harbor-cli/cmd/login"
 	"github.com/akshatdalton/harbor-cli/cmd/project"
+	"github.com/akshatdalton/harbor-cli/cmd/registry"
 	"github.com/spf13/cobra"
 )
 
@@ -17,6 +18,7 @@ func newGetCommand() *cobra.Command {
 
 	cmd.PersistentFlags().String(constants.CredentialNameOption, "", "Name of the credential to use for authentication")
 	cmd.AddCommand(project.NewGetProjectCommand())
+	cmd.AddCommand(registry.NewGetRegistryCommand())
 	return cmd
 }