add option to disable backends

crates/pacdef_core/src/config.rs

@@ -14,6 +14,8 @@ pub struct Config {
     pub aur_rm_args: Option<Vec<String>>,
     /// Warn the user when a group is not a symlink.
     pub warn_not_symlinks: bool,
+    /// Backends the user does not want to use even though the binary exists.
+    pub disabled_backends: Vec<String>,
 }
 
 impl Config {
@@ -65,6 +67,7 @@ impl Default for Config {
             aur_helper: "paru".into(),
             aur_rm_args: None,
             warn_not_symlinks: true,
+            disabled_backends: vec![],
         }
     }
 }

crates/pacdef_core/src/core.rs

@@ -95,9 +95,15 @@ impl Pacdef {
         let mut to_install = ToDoPerBackend::new();
 
         for mut backend in Backends::iter() {
-            #[cfg(feature = "arch")]
-            self.overwrite_values_from_config(&mut *backend);
+            if self
+                .config
+                .disabled_backends
+                .contains(&backend.get_section().to_string())
+            {
+                continue;
+            }
 
+            self.overwrite_values_from_config(&mut *backend);
             backend.load(&self.groups);
 
             match backend.get_missing_packages_sorted() {
@@ -172,9 +178,15 @@ impl Pacdef {
         let mut result = ToDoPerBackend::new();
 
         for mut backend in Backends::iter() {
-            #[cfg(feature = "arch")]
-            self.overwrite_values_from_config(&mut *backend);
+            if self
+                .config
+                .disabled_backends
+                .contains(&backend.get_section().to_string())
+            {
+                continue;
+            }
 
+            self.overwrite_values_from_config(&mut *backend);
             backend.load(&self.groups);
 
             match backend.get_unmanaged_packages_sorted() {