Fix -l/--limit flag not filtering unit files

src/components/home.rs

@@ -903,8 +903,9 @@ impl Component for Home {
       Action::RefreshUnitFiles => {
         let tx = self.action_tx.clone().unwrap();
         let scope = self.scope;
+        let limit_units = self.limit_units.clone();
         tokio::spawn(async move {
-          match systemd::get_unit_files(scope).await {
+          match systemd::get_unit_files(scope, &limit_units).await {
             Ok(unit_files) => {
               let _ = tx.send(Action::SetUnitFiles(unit_files));
             },

src/systemd.rs

@@ -132,7 +132,7 @@ impl UnitFile {
 
 /// Get unit files for all services, INCLUDING DISABLED ONES (ListUnits doesn't include those)
 /// This is slower than get_all_services. Takes about 100ms (user) and 300ms (global) on 13th gen Intel i7
-pub async fn get_unit_files(scope: Scope) -> Result<Vec<UnitFile>> {
+pub async fn get_unit_files(scope: Scope, services: &[String]) -> Result<Vec<UnitFile>> {
   let start = std::time::Instant::now();
 
   let mut unit_scopes = vec![];
@@ -163,21 +163,22 @@ pub async fn get_unit_files(scope: Scope) -> Result<Vec<UnitFile>> {
       },
     };
     let manager_proxy = ManagerProxy::new(&connection).await?;
-    let unit_files = match manager_proxy.list_unit_files_by_patterns(vec![], vec!["*.service".into()]).await {
-      Ok(files) => {
-        info!("get_unit_files: got {} {:?} unit files", files.len(), unit_scope);
-        files
-      },
-      Err(e) => {
-        error!("get_unit_files: list_unit_files_by_patterns failed for {:?}: {:?}", unit_scope, e);
-        if is_root && unit_scope == UnitScope::User {
-          info!("get_unit_files: ignoring user scope error because we're root");
-          vec![]
-        } else {
-          return Err(e.into());
-        }
-      },
-    };
+    let unit_files =
+      match manager_proxy.list_unit_files_by_patterns(vec![], services.iter().map(|s| s.to_string()).collect()).await {
+        Ok(files) => {
+          info!("get_unit_files: got {} {:?} unit files", files.len(), unit_scope);
+          files
+        },
+        Err(e) => {
+          error!("get_unit_files: list_unit_files_by_patterns failed for {:?}: {:?}", unit_scope, e);
+          if is_root && unit_scope == UnitScope::User {
+            info!("get_unit_files: ignoring user scope error because we're root");
+            vec![]
+          } else {
+            return Err(e.into());
+          }
+        },
+      };
 
     let services = unit_files
       .into_iter()