[fix] chaos mode always fails deploy

cli/app/deploy.go

@@ -2,6 +2,7 @@ package app
 
 import (
 	"context"
+	"errors"
 	"fmt"
 
 	"coopcloud.tech/abra/cli/internal"
@@ -46,14 +47,12 @@ operations.`,
 		app := internal.ValidateApp(cmd)
 		stackName := app.StackName()
 
-		specificVersion := cmd.Args().Get(1)
-		if specificVersion == "" {
-			specificVersion = app.Recipe.Version
+		ok, err := validateChaosXORVersion(cmd.Args())
+		if !ok {
+			log.Fatalf(err.Error())
 		}
 
-		if specificVersion != "" && internal.Chaos {
-			log.Fatal("cannot use <version> and --chaos together")
-		}
+		specificVersion := getSpecifiedVersion(cmd.Args())
 
 		if specificVersion != "" {
 			log.Debugf("overriding env file version (%s) with %s", app.Recipe.Version, specificVersion)
@@ -261,3 +260,17 @@ operations.`,
 		return nil
 	},
 }
+
+// This is not really xor since both can be absent
+//
+//	but, I say we let it slide this time!
+func validateChaosXORVersion(args cli.Args) (bool, error) {
+	if getSpecifiedVersion(args) != "" && internal.Chaos {
+		return false, errors.New("cannot use <version> and --chaos together")
+	}
+	return true, nil
+}
+
+func getSpecifiedVersion(args cli.Args) string {
+	return args.Get(1)
+}