refactor!: migrate to urfave/cli v1

Better flexible flags handling.

cli/app/errors.go

@@ -1,6 +1,7 @@
 package app
 
 import (
+	"context"
 	"strconv"
 	"strings"
 	"time"
@@ -15,10 +16,10 @@ import (
 	"github.com/docker/docker/api/types/filters"
 	dockerClient "github.com/docker/docker/client"
 	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli/v2"
+	"github.com/urfave/cli"
 )
 
-var appErrorsCommand = &cli.Command{
+var appErrorsCommand = cli.Command{
 	Name:  "errors",
 	Usage: "List errors for a deployed app",
 	Description: `
@@ -44,8 +45,13 @@ further information which can help you debug the cause of an app failure via
 the logs.
 
 `,
-	Aliases:      []string{"e"},
-	Flags:        []cli.Flag{internal.WatchFlag},
+	Aliases: []string{"e"},
+	Flags: []cli.Flag{
+		internal.DebugFlag,
+		internal.NoInputFlag,
+		internal.WatchFlag,
+	},
+	Before:       internal.SubCommandBefore,
 	BashComplete: autocomplete.AppNameComplete,
 	Action: func(c *cli.Context) error {
 		app := internal.ValidateApp(c)
@@ -55,7 +61,7 @@ the logs.
 			logrus.Fatal(err)
 		}
 
-		isDeployed, _, err := stack.IsDeployed(c.Context, cl, app.StackName())
+		isDeployed, _, err := stack.IsDeployed(context.Background(), cl, app.StackName())
 		if err != nil {
 			logrus.Fatal(err)
 		}
@@ -91,7 +97,7 @@ func checkErrors(c *cli.Context, cl *dockerClient.Client, app config.App) error
 	for _, service := range recipe.Config.Services {
 		filters := filters.NewArgs()
 		filters.Add("name", service.Name)
-		containers, err := cl.ContainerList(c.Context, types.ContainerListOptions{Filters: filters})
+		containers, err := cl.ContainerList(context.Background(), types.ContainerListOptions{Filters: filters})
 		if err != nil {
 			return err
 		}
@@ -102,7 +108,7 @@ func checkErrors(c *cli.Context, cl *dockerClient.Client, app config.App) error
 		}
 
 		container := containers[0]
-		containerState, err := cl.ContainerInspect(c.Context, container.ID)
+		containerState, err := cl.ContainerInspect(context.Background(), container.ID)
 		if err != nil {
 			logrus.Fatal(err)
 		}