migrate nats from urfave/cli to spf13/cobra

Signed-off-by: Christian Richter <c.richter@opencloud.eu>

services/nats/pkg/command/health.go

@@ -2,15 +2,16 @@ package command
 
 import (
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/config"
-	"github.com/urfave/cli/v2"
+
+	"github.com/spf13/cobra"
 )
 
 // Health is the entrypoint for the health command.
-func Health(cfg *config.Config) *cli.Command {
-	return &cli.Command{
-		Name:  "health",
-		Usage: "Check health status",
-		Action: func(c *cli.Context) error {
+func Health(cfg *config.Config) *cobra.Command {
+	return &cobra.Command{
+		Use:   "health",
+		Short: "Check health status",
+		RunE: func(cmd *cobra.Command, args []string) error {
 			// Not implemented
 			return nil
 		},

services/nats/pkg/command/root.go

@@ -5,12 +5,13 @@ import (
 
 	"github.com/opencloud-eu/opencloud/pkg/clihelper"
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/config"
-	"github.com/urfave/cli/v2"
+
+	"github.com/spf13/cobra"
 )
 
 // GetCommands provides all commands for this service
-func GetCommands(cfg *config.Config) cli.Commands {
-	return []*cli.Command{
+func GetCommands(cfg *config.Config) []*cobra.Command {
+	return []*cobra.Command{
 		// start this service
 		Server(cfg),
 
@@ -24,11 +25,12 @@ func GetCommands(cfg *config.Config) cli.Commands {
 
 // Execute is the entry point for the nats command.
 func Execute(cfg *config.Config) error {
-	app := clihelper.DefaultApp(&cli.App{
-		Name:     "nats",
-		Usage:    "starts nats server",
-		Commands: GetCommands(cfg),
+	app := clihelper.DefaultAppCobra(&cobra.Command{
+		Use:   "nats",
+		Short: "starts nats server",
 	})
+	app.AddCommand(GetCommands(cfg)...)
+	app.SetArgs(os.Args[1:])
 
-	return app.RunContext(cfg.Context, os.Args)
+	return app.ExecuteContext(cfg.Context)
 }

services/nats/pkg/command/server.go

@@ -6,8 +6,6 @@ import (
 	"fmt"
 	"os/signal"
 
-	"github.com/urfave/cli/v2"
-
 	"github.com/opencloud-eu/opencloud/pkg/config/configlog"
 	pkgcrypto "github.com/opencloud-eu/opencloud/pkg/crypto"
 	"github.com/opencloud-eu/opencloud/pkg/runner"
@@ -16,18 +14,19 @@ import (
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/logging"
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/server/debug"
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/server/nats"
+
+	"github.com/spf13/cobra"
 )
 
 // Server is the entrypoint for the server command.
-func Server(cfg *config.Config) *cli.Command {
-	return &cli.Command{
-		Name:     "server",
-		Usage:    fmt.Sprintf("start the %s service without runtime (unsupervised mode)", cfg.Service.Name),
-		Category: "server",
-		Before: func(c *cli.Context) error {
+func Server(cfg *config.Config) *cobra.Command {
+	return &cobra.Command{
+		Use:   "server",
+		Short: fmt.Sprintf("start the %s service without runtime (unsupervised mode)", cfg.Service.Name),
+		PreRunE: func(cmd *cobra.Command, args []string) error {
 			return configlog.ReturnFatal(parser.ParseConfig(cfg))
 		},
-		Action: func(c *cli.Context) error {
+		RunE: func(cmd *cobra.Command, args []string) error {
 			logger := logging.Configure(cfg.Service.Name, cfg.Log)
 
 			var cancel context.CancelFunc

services/nats/pkg/command/version.go

@@ -2,16 +2,16 @@ package command
 
 import (
 	"github.com/opencloud-eu/opencloud/services/nats/pkg/config"
-	"github.com/urfave/cli/v2"
+
+	"github.com/spf13/cobra"
 )
 
 // Version prints the service versions of all running instances.
-func Version(cfg *config.Config) *cli.Command {
-	return &cli.Command{
-		Name:     "version",
-		Usage:    "print the version of this binary and the running service instances",
-		Category: "info",
-		Action: func(c *cli.Context) error {
+func Version(cfg *config.Config) *cobra.Command {
+	return &cobra.Command{
+		Use:   "version",
+		Short: "print the version of this binary and the running service instances",
+		RunE: func(cmd *cobra.Command, args []string) error {
 			// not implemented
 			return nil
 		},