Merge pull request 'UI: Added signal handling for stopped and started vm.' (#750) from Qubasa-main into main

pkgs/clan-cli/clan_cli/custom_logger.py

@@ -38,11 +38,12 @@ FORMATTER = {
 
 
 class CustomFormatter(logging.Formatter):
+    def __init__(self, log_locations: bool) -> None:
+        super().__init__()
+        self.log_locations = log_locations
+
     def format(self, record: logging.LogRecord) -> str:
-        if record.levelno == logging.DEBUG:
-            return FORMATTER[record.levelno](record, True).format(record)
-        else:
-            return FORMATTER[record.levelno](record, False).format(record)
+        return FORMATTER[record.levelno](record, self.log_locations).format(record)
 
 
 class ThreadFormatter(logging.Formatter):
@@ -75,7 +76,7 @@ def setup_logging(level: Any) -> None:
 
     # Create and add your custom handler
     default_handler.setLevel(level)
-    default_handler.setFormatter(CustomFormatter())
+    default_handler.setFormatter(CustomFormatter(level == logging.DEBUG))
     main_logger.addHandler(default_handler)
 
     # Set logging level for other modules used by this module

pkgs/clan-cli/clan_cli/errors.py

@@ -1,11 +1,10 @@
-import os
+import shutil
 from math import floor
 from pathlib import Path
-from typing import NamedTuple
 
 
 def get_term_filler(name: str) -> int:
-    width, height = os.get_terminal_size()
+    width, height = shutil.get_terminal_size()
 
     filler = floor((width - len(name)) / 2)
     return filler - 1
@@ -16,16 +15,25 @@ def text_heading(heading: str) -> str:
     return f"{'=' * filler} {heading} {'=' * filler}"
 
 
-class CmdOut(NamedTuple):
-    stdout: str
-    stderr: str
-    cwd: Path
-    command: str
-    returncode: int
-    msg: str | None = None
+class CmdOut:
+    def __init__(
+        self,
+        stdout: str,
+        stderr: str,
+        cwd: Path,
+        command: str,
+        returncode: int,
+        msg: str | None,
+    ) -> None:
+        super().__init__()
+        self.stdout = stdout
+        self.stderr = stderr
+        self.cwd = cwd
+        self.command = command
+        self.returncode = returncode
+        self.msg = msg
 
-    def __str__(self) -> str:
-        return f"""
+        self.error_str = f"""
 {text_heading(heading="Command")}
 {self.command}
 {text_heading(heading="Stderr")}
@@ -36,7 +44,10 @@ class CmdOut(NamedTuple):
 Message: {self.msg}
 Working Directory: '{self.cwd}'
 Return Code: {self.returncode}
-"""
+        """
+
+    def __str__(self) -> str:
+        return self.error_str
 
 
 class ClanError(Exception):

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

@@ -61,7 +61,7 @@ def _init_proc(
     func: Callable,
     out_file: Path,
     proc_name: str,
-    on_except: Callable[[Exception, mp.process.BaseProcess], None],
+    on_except: Callable[[Exception, mp.process.BaseProcess], None] | None,
     **kwargs: Any,
 ) -> None:
     # Create a new process group
@@ -89,7 +89,8 @@ def _init_proc(
         func(**kwargs)
     except Exception as ex:
         traceback.print_exc()
-        on_except(ex, mp.current_process())
+        if on_except is not None:
+            on_except(ex, mp.current_process())
     finally:
         pid = os.getpid()
         gpid = os.getpgid(pid=pid)
@@ -99,8 +100,8 @@ def _init_proc(
 
 def spawn(
     *,
-    log_path: Path,
-    on_except: Callable[[Exception, mp.process.BaseProcess], None],
+    log_dir: Path,
+    on_except: Callable[[Exception, mp.process.BaseProcess], None] | None,
     func: Callable,
     **kwargs: Any,
 ) -> MPProcess:
@@ -108,13 +109,13 @@ def spawn(
     if mp.get_start_method(allow_none=True) is None:
         mp.set_start_method(method="forkserver")
 
-    if not log_path.is_dir():
-        raise ClanError(f"Log path {log_path} is not a directory")
-    log_path.mkdir(parents=True, exist_ok=True)
+    if not log_dir.is_dir():
+        raise ClanError(f"Log path {log_dir} is not a directory")
+    log_dir.mkdir(parents=True, exist_ok=True)
 
     # Set names
     proc_name = f"MPExec:{func.__name__}"
-    out_file = log_path / "out.log"
+    out_file = log_dir / "out.log"
 
     # Start the process
     proc = mp.Process(

pkgs/clan-vm-manager/clan_vm_manager/model/use_vms.py

@@ -1,19 +1,11 @@
-import multiprocessing as mp
+from collections.abc import Callable
 from typing import Any
 
-from clan_cli.errors import ClanError
 from gi.repository import Gio
 
-from clan_vm_manager.errors.show_error import show_error_dialog
 from clan_vm_manager.models import VM, get_initial_vms
 
 
-# https://amolenaar.pages.gitlab.gnome.org/pygobject-docs/Adw-1/class-ToolbarView.html
-# Will be executed in the context of the child process
-def on_except(error: Exception, proc: mp.process.BaseProcess) -> None:
-    show_error_dialog(ClanError(str(error)))
-
-
 class VMS:
     """
     This is a singleton.
@@ -45,6 +37,14 @@ class VMS:
                 cls.list_store.append(vm)
         return cls._instance
 
+    def handle_vm_stopped(self, func: Callable[[VM, VM], None]) -> None:
+        for vm in self.list_store:
+            vm.connect("vm_stopped", func)
+
+    def handle_vm_started(self, func: Callable[[VM, VM], None]) -> None:
+        for vm in self.list_store:
+            vm.connect("vm_started", func)
+
     def get_running_vms(self) -> list[VM]:
         return list(filter(lambda vm: vm.is_running(), self.list_store))
 

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

@@ -1,9 +1,11 @@
-import multiprocessing as mp
 import sys
+import tempfile
 import weakref
 from enum import StrEnum
 from pathlib import Path
+from typing import ClassVar
 
+import gi
 from clan_cli import vms
 from clan_cli.errors import ClanError
 from clan_cli.history.add import HistoryEntry
@@ -15,17 +17,24 @@ from clan_vm_manager import assets
 from .errors.show_error import show_error_dialog
 from .executor import MPProcess, spawn
 
+gi.require_version("Gtk", "4.0")
+import threading
+
+from gi.repository import GLib
+
 
 class VMStatus(StrEnum):
     RUNNING = "Running"
     STOPPED = "Stopped"
 
 
-def on_except(error: Exception, proc: mp.process.BaseProcess) -> None:
-    show_error_dialog(ClanError(str(error)))
-
-
 class VM(GObject.Object):
+    # Define a custom signal with the name "vm_stopped" and a string argument for the message
+    __gsignals__: ClassVar = {
+        "vm_started": (GObject.SignalFlags.RUN_FIRST, None, [GObject.Object]),
+        "vm_stopped": (GObject.SignalFlags.RUN_FIRST, None, [GObject.Object]),
+    }
+
     def __init__(
         self,
         icon: Path,
@@ -37,6 +46,9 @@ class VM(GObject.Object):
         self.data = data
         self.process = process
         self.status = status
+        self.log_dir = tempfile.TemporaryDirectory(
+            prefix="clan_vm-", suffix=f"-{self.data.flake.flake_attr}"
+        )
         self._finalizer = weakref.finalize(self, self.stop)
 
     def start(self) -> None:
@@ -46,14 +58,23 @@ class VM(GObject.Object):
         vm = vms.run.inspect_vm(
             flake_url=self.data.flake.flake_url, flake_attr=self.data.flake.flake_attr
         )
-        log_path = Path(".")
-
         self.process = spawn(
-            on_except=on_except,
-            log_path=log_path,
+            on_except=None,
+            log_dir=Path(str(self.log_dir.name)),
             func=vms.run.run_vm,
             vm=vm,
         )
+        self.emit("vm_started", self)
+        GLib.timeout_add(50, self.vm_stopped_task)
+
+    def start_async(self) -> None:
+        threading.Thread(target=self.start).start()
+
+    def vm_stopped_task(self) -> bool:
+        if not self.is_running():
+            self.emit("vm_stopped", self)
+            return GLib.SOURCE_REMOVE
+        return GLib.SOURCE_CONTINUE
 
     def is_running(self) -> bool:
         if self.process is not None:
@@ -63,6 +84,9 @@ class VM(GObject.Object):
     def get_id(self) -> str:
         return self.data.flake.flake_url + self.data.flake.flake_attr
 
+    def stop_async(self) -> None:
+        threading.Thread(target=self.stop).start()
+
     def stop(self) -> None:
         if self.process is None:
             print("VM is already stopped", file=sys.stderr)
@@ -71,6 +95,11 @@ class VM(GObject.Object):
         self.process.kill_group()
         self.process = None
 
+    def read_log(self) -> str:
+        if self.process is None:
+            return ""
+        return self.process.out_file.read_text()
+
 
 def get_initial_vms() -> list[VM]:
     vm_list = []

pkgs/clan-vm-manager/clan_vm_manager/views/list.py

@@ -64,17 +64,38 @@ class ClanList(Gtk.Box):
 
             return row
 
-        list_store = VMS.use().list_store
+        vms = VMS.use()
 
-        boxed_list.bind_model(list_store, create_widget_func=create_widget)
+        # TODO: Move this up to create_widget and connect every VM signal to its corresponding switch
+        vms.handle_vm_stopped(self.stopped_vm)
+        vms.handle_vm_started(self.started_vm)
+
+        boxed_list.bind_model(vms.list_store, create_widget_func=create_widget)
 
         self.append(boxed_list)
 
+    def started_vm(self, vm: VM, _vm: VM) -> None:
+        print("VM started", vm.data.flake.flake_attr)
+
+    def stopped_vm(self, vm: VM, _vm: VM) -> None:
+        print("VM stopped", vm.data.flake.flake_attr)
+
+    def show_error_dialog(self, error: str) -> None:
+        dialog = Gtk.MessageDialog(
+            parent=self.get_toplevel(),
+            modal=True,
+            message_type=Gtk.MessageType.ERROR,
+            buttons=Gtk.ButtonsType.OK,
+            text=error,
+        )
+        dialog.run()
+        dialog.destroy()
+
     def on_row_toggle(self, vm: VM, row: Adw.SwitchRow, state: bool) -> None:
         print("Toggled", vm.data.flake.flake_attr, "active:", row.get_active())
 
         if row.get_active():
-            vm.start()
+            vm.start_async()
 
         if not row.get_active():
-            vm.stop()
+            vm.stop_async()