refactor!: migrate to urfave/cli v1

Better flexible flags handling.

cli/server/list.go

@@ -3,20 +3,24 @@ package server
 import (
 	"strings"
 
+	"coopcloud.tech/abra/cli/internal"
 	"coopcloud.tech/abra/pkg/config"
 	"coopcloud.tech/abra/pkg/context"
 	"coopcloud.tech/abra/pkg/formatter"
 	"github.com/docker/cli/cli/connhelper/ssh"
 	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli"
 )
 
-var serverListCommand = &cli.Command{
-	Name:      "list",
-	Aliases:   []string{"ls"},
-	Usage:     "List managed servers",
-	ArgsUsage: " ",
-	HideHelp:  true,
+var serverListCommand = cli.Command{
+	Name:    "list",
+	Aliases: []string{"ls"},
+	Usage:   "List managed servers",
+	Flags: []cli.Flag{
+		internal.DebugFlag,
+		internal.NoInputFlag,
+	},
+	Before: internal.SubCommandBefore,
 	Action: func(c *cli.Context) error {
 		dockerContextStore := context.NewDefaultDockerContextStore()
 		contexts, err := dockerContextStore.Store.List()