feat: upgrade/downgrade support chaos mode

pkg/recipe/recipe.go

@@ -195,3 +195,26 @@ func EnsureLatest(recipeName string) error {
 
 	return nil
 }
+
+// ChaosVersion constructs a chaos mode recipe version.
+func ChaosVersion(recipeName string) (string, error) {
+	var version string
+
+	head, err := gitPkg.GetRecipeHead(recipeName)
+	if err != nil {
+		return version, err
+	}
+
+	version = head.String()[:8]
+
+	isClean, err := gitPkg.IsClean(recipeName)
+	if err != nil {
+		return version, err
+	}
+
+	if !isClean {
+		version = fmt.Sprintf("%s + unstaged changes", version)
+	}
+
+	return version, nil
+}