Added show_error_dialogue on exception

pkgs/clan-vm-manager/clan_vm_manager/app.py

@@ -10,10 +10,13 @@ from clan_vm_manager.windows.flash import FlashUSBWindow
 
 gi.require_version("Gtk", "3.0")
 
+import multiprocessing as mp
+
 from clan_cli.clan_uri import ClanURI
 from gi.repository import Gio, Gtk
 
 from .constants import constants
+from .errors.show_error import show_error_dialog
 from .executor import ProcessManager
 from .interfaces import Callbacks, InitialFlashValues, InitialJoinValues
 from .windows.join import JoinWindow
@@ -33,6 +36,11 @@ class ClanConfig:
     url: ClanURI | None
 
 
+# Will be executed in the context of the child process
+def on_except(error: Exception, proc: mp.process.BaseProcess) -> None:
+    show_error_dialog(str(error))
+
+
 class Application(Gtk.Application):
     def __init__(self, windows: ClanWindows, config: ClanConfig) -> None:
         super().__init__(
@@ -80,17 +88,17 @@ class Application(Gtk.Application):
         self.proc_manager.spawn(
             ident=url,
             wait_stdin_con=False,
+            on_except=on_except,
             log_path=log_path,
             func=vms.run.run_vm,
             vm=vm,
         )
 
     def stop_vm(self, url: str, attr: str) -> None:
-        print(f"stop_vm {url}")
         self.proc_manager.kill(url)
 
     def running_vms(self) -> list[str]:
-        return list(self.proc_manager.procs.keys())
+        return self.proc_manager.running_procs()
 
     def show_list(self) -> None:
         prev = self.window

pkgs/clan-vm-manager/clan_vm_manager/executor.py

@@ -21,10 +21,6 @@ def _kill_group(proc: mp.Process) -> None:
     pid = proc.pid
     assert pid is not None
     if proc.is_alive():
-        print(
-            f"Killing process group pid={pid}",
-            file=sys.stderr,
-        )
         os.killpg(pid, signal.SIGTERM)
     else:
         print(f"Process {proc.name} with pid {pid} is already dead", file=sys.stderr)
@@ -67,6 +63,7 @@ def _init_proc(
     in_file: Path,
     wait_stdin_connect: bool,
     proc_name: str,
+    on_except: Callable[[Exception, mp.process.BaseProcess], None],
     **kwargs: Any,
 ) -> None:
     # Create a new process group
@@ -97,8 +94,9 @@ def _init_proc(
     print(f"Executing function {func.__name__} now", file=sys.stderr)
     try:
         func(**kwargs)
-    except Exception:
+    except Exception as ex:
         traceback.print_exc()
+        on_except(ex, mp.current_process())
     finally:
         pid = os.getpid()
         gpid = os.getpgid(pid=pid)
@@ -107,12 +105,16 @@ def _init_proc(
 
 
 def spawn(
-    *, wait_stdin_con: bool, log_path: Path, func: Callable, **kwargs: Any
+    *,
+    wait_stdin_con: bool,
+    log_path: Path,
+    on_except: Callable[[Exception, mp.process.BaseProcess], None],
+    func: Callable,
+    **kwargs: Any,
 ) -> MPProcess:
     # Decouple the process from the parent
     if mp.get_start_method(allow_none=True) is None:
         mp.set_start_method(method="forkserver")
-        print("Set mp start method to forkserver", file=sys.stderr)
 
     if not log_path.is_dir():
         raise ClanError(f"Log path {log_path} is not a directory")
@@ -132,7 +134,7 @@ def spawn(
     # Start the process
     proc = mp.Process(
         target=_init_proc,
-        args=(func, out_file, in_file, wait_stdin_con, proc_name),
+        args=(func, out_file, in_file, wait_stdin_con, proc_name, on_except),
         name=proc_name,
         kwargs=kwargs,
     )
@@ -140,8 +142,6 @@ def spawn(
 
     # Print some information
     assert proc.pid is not None
-    print(f"Started process '{proc_name}'")
-    print(f"Arguments: {kwargs}")
 
     if wait_stdin_con:
         cmd = f"cat - > {in_file}"
@@ -166,17 +166,42 @@ class ProcessManager:
         self.procs: dict[str, MPProcess] = dict()
         self._finalizer = weakref.finalize(self, self.kill_all)
 
+    def by_pid(self, pid: int) -> tuple[str, MPProcess] | None:
+        for ident, proc in self.procs.items():
+            if proc.proc.pid == pid:
+                return (ident, proc)
+        return None
+
+    def by_proc(self, proc: mp.process.BaseProcess) -> tuple[str, MPProcess] | None:
+        if proc.pid is None:
+            return None
+        return self.by_pid(pid=proc.pid)
+
+    def running_procs(self) -> list[str]:
+        res = []
+        for ident, proc in self.procs.copy().items():
+            if proc.proc.is_alive():
+                res.append(ident)
+            else:
+                del self.procs[ident]
+        return res
+
     def spawn(
         self,
         *,
         ident: str,
         wait_stdin_con: bool,
         log_path: Path,
+        on_except: Callable[[Exception, mp.process.BaseProcess], None],
         func: Callable,
         **kwargs: Any,
     ) -> MPProcess:
         proc = spawn(
-            wait_stdin_con=wait_stdin_con, log_path=log_path, func=func, **kwargs
+            wait_stdin_con=wait_stdin_con,
+            log_path=log_path,
+            on_except=on_except,
+            func=func,
+            **kwargs,
         )
         if ident in self.procs:
             raise ClanError(f"Process with id {ident} already exists")

pkgs/clan-vm-manager/clan_vm_manager/ui/clan_select_list.py

@@ -123,32 +123,26 @@ class ClanList(Gtk.Box):
         )
 
     def on_flash_clicked(self, widget: Gtk.Widget) -> None:
-        print("Flash clicked")
         self.cbs.show_flash()
 
     def on_double_click(self, vm: VMBase) -> None:
-        print(f"on_double_click: {vm.name}")
         self.on_start_clicked(self)
 
     def on_start_clicked(self, widget: Gtk.Widget) -> None:
-        print("Start clicked")
         if self.selected_vm:
             self.cbs.spawn_vm(self.selected_vm.url, self.selected_vm._flake_attr)
         # Call this to reload
         self.remount_list_view()
 
     def on_stop_clicked(self, widget: Gtk.Widget) -> None:
-        print("Stop clicked")
         if self.selected_vm:
             self.cbs.stop_vm(self.selected_vm.url, self.selected_vm._flake_attr)
         self.remount_list_view()
 
     def on_new_clicked(self, widget: Gtk.Widget) -> None:
-        print("New clicked")
         self.show_join()
 
     def on_edit_clicked(self, widget: Gtk.Widget) -> None:
-        print("Edit clicked")
         self.remount_edit_view()
 
     def on_select_vm(self, vm: VMBase) -> None:

pkgs/clan-vm-manager/clan_vm_manager/windows/join.py

@@ -75,7 +75,6 @@ class Trust(Gtk.Box):
         self.set_center_widget(layout)
 
     def on_trust(self, widget: Gtk.Widget) -> None:
-        # TODO: @Johannes, replace image with real clan logo
         try:
             uri = self.url or ClanURI(self.entry.get_text())
             print(f"trusted: {uri}")

pkgs/clan-vm-manager/clan_vm_manager/windows/overview.py

@@ -54,7 +54,6 @@ class OverviewWindow(Gtk.ApplicationWindow):
 
     def remount_list_view(self) -> None:
         widget = self.stack.get_child_by_name("list")
-        print("Remounting ClanListView")
         if widget:
             widget.destroy()
 
@@ -71,7 +70,6 @@ class OverviewWindow(Gtk.ApplicationWindow):
         self.stack.set_visible_child_name("list")
 
     def remount_edit_view(self) -> None:
-        print("Remounting ClanEdit")
         widget = self.stack.get_child_by_name("edit")
         if widget:
             widget.destroy()