CLI: Add photoprism connect command

Signed-off-by: Michael Mayer <michael@photoprism.app>

internal/commands/connect.go

@@ -0,0 +1,36 @@
+package commands
+
+import (
+	"github.com/urfave/cli"
+
+	"github.com/photoprism/photoprism/internal/config"
+)
+
+// ConnectCommand configures the command name, flags, and action.
+var ConnectCommand = cli.Command{
+	Name:      "connect",
+	Usage:     "Connects your membership account",
+	ArgsUsage: "[activation code]",
+	Action:    connectAction,
+}
+
+// connectAction connects your membership account.
+func connectAction(ctx *cli.Context) error {
+	return CallWithDependencies(ctx, func(conf *config.Config) error {
+		token := ctx.Args().First()
+
+		// Fail if no code was provided.
+		if token == "" {
+			return cli.ShowSubcommandHelp(ctx)
+		}
+
+		// Connect to hub.
+		if err := conf.ResyncHub(token); err != nil {
+			return err
+		}
+
+		log.Infof("successfully connected your account")
+
+		return nil
+	})
+}