refactor!: drop backup/restore for now

This will be done with the bot from now on.

cli/app/backup.go

@@ -1,79 +0,0 @@
-package app
-
-import (
-	"errors"
-	"fmt"
-	"io/ioutil"
-	"os"
-	"os/exec"
-	"path"
-	"strings"
-
-	"coopcloud.tech/abra/cli/internal"
-	"coopcloud.tech/abra/pkg/autocomplete"
-	"coopcloud.tech/abra/pkg/config"
-	"github.com/sirupsen/logrus"
-	"github.com/urfave/cli"
-)
-
-var backupAllServices bool
-var backupAllServicesFlag = &cli.BoolFlag{
-	Name:        "all, a",
-	Destination: &backupAllServices,
-	Usage:       "Backup all services",
-}
-
-var appBackupCommand = cli.Command{
-	Name:    "backup",
-	Aliases: []string{"b"},
-	Usage:   "Backup an app",
-	Flags: []cli.Flag{
-		internal.DebugFlag,
-		internal.NoInputFlag,
-		backupAllServicesFlag},
-	Before:    internal.SubCommandBefore,
-	ArgsUsage: "<service>",
-	Action: func(c *cli.Context) error {
-		app := internal.ValidateApp(c)
-
-		if c.Args().Get(1) != "" && backupAllServices {
-			internal.ShowSubcommandHelpAndError(c, errors.New("cannot use '<service>' and '--all' together"))
-		}
-
-		abraSh := path.Join(config.RECIPES_DIR, app.Type, "abra.sh")
-		if _, err := os.Stat(abraSh); err != nil {
-			if os.IsNotExist(err) {
-				logrus.Fatalf("%s does not exist?", abraSh)
-			}
-			logrus.Fatal(err)
-		}
-
-		sourceCmd := fmt.Sprintf("source %s", abraSh)
-
-		execCmd := "abra_backup"
-		if !backupAllServices {
-			serviceName := c.Args().Get(1)
-			if serviceName == "" {
-				internal.ShowSubcommandHelpAndError(c, errors.New("no service(s) target provided"))
-			}
-			execCmd = fmt.Sprintf("abra_backup_%s", serviceName)
-		}
-
-		bytes, err := ioutil.ReadFile(abraSh)
-		if err != nil {
-			logrus.Fatal(err)
-		}
-		if !strings.Contains(string(bytes), execCmd) {
-			logrus.Fatalf("%s doesn't have a %s function", app.Type, execCmd)
-		}
-
-		sourceAndExec := fmt.Sprintf("%s; %s", sourceCmd, execCmd)
-		cmd := exec.Command("bash", "-c", sourceAndExec)
-		if err := internal.RunCmd(cmd); err != nil {
-			logrus.Fatal(err)
-		}
-
-		return nil
-	},
-	BashComplete: autocomplete.AppNameComplete,
-}