Implements VM groups API (#206)

Reviewed-on: #206

virtweb_backend/src/libvirt_client.rs

@@ -122,6 +122,21 @@ impl LibVirtClient {
         Ok(out)
     }
 
+    /// Get the full list of VMs of a given group
+    pub async fn get_full_group_vm_list(
+        &self,
+        group: &VMGroupId,
+    ) -> anyhow::Result<Vec<DomainXML>> {
+        let vms = self.get_full_domains_list().await?;
+        let mut out = Vec::new();
+        for vm in vms {
+            if VMInfo::from_domain(vm.clone())?.group == Some(group.clone()) {
+                out.push(vm);
+            }
+        }
+        Ok(out)
+    }
+
     /// Update a network configuration
     pub async fn update_network(
         &self,