Fix breakage

Cargo.toml

@@ -5,7 +5,7 @@ categories = ["os"]
 keywords = ["upgrade", "update"]
 license-file = "LICENSE"
 repository = "https://github.com/r-darwish/topgrade"
-version = "8.1.0"
+version = "8.1.1"
 authors = ["Roey Darwish Dror <[email protected]>"]
 exclude = ["doc/screenshot.gif"]
 edition = "2018"

src/config.rs

@@ -11,7 +11,7 @@ use pretty_env_logger::formatted_timed_builder;
 use regex::Regex;
 use serde::Deserialize;
 use structopt::StructOpt;
-use strum::{EnumIter, EnumString, EnumVariantNames, VariantNames};
+use strum::{EnumIter, EnumString, EnumVariantNames, IntoEnumIterator, VariantNames};
 use sys_info::hostname;
 use which_crate::which;
 
@@ -517,6 +517,10 @@ impl Config {
             enabled_steps.extend(only)
         }
 
+        if enabled_steps.is_empty() {
+            enabled_steps.extend(Step::iter());
+        }
+
         let mut disabled_steps: Vec<Step> = Vec::new();
         disabled_steps.extend(&opt.disable);
         if let Some(disabled) = config_file.disable.as_ref() {