git fetcher: Try adding connectivity tracking

commander/gui/git.py

@@ -7,6 +7,7 @@ import logging
 from PyQt6.QtCore import pyqtSlot, pyqtSignal, QObject, QTimer, QProcess, Qt
 from PyQt6.QtGui import QFont
 from PyQt6.QtWidgets import QTableWidget, QTableWidgetItem, QWidget
+from PyQt6.QtNetwork import QNetworkInformation
 
 from commander.gui import utils
 
@@ -68,8 +69,25 @@ class GitFetcher(QObject):
         self.timer.setInterval(self.INTERVAL)
         self.timer.timeout.connect(self.on_timeout)
 
+        loaded = QNetworkInformation.load(QNetworkInformation.Feature.Reachability)
+        if loaded:
+            QNetworkInformation.instance().reachabilityChanged.connect(
+                self._on_reachability_changed)
+
         self._had_updates = False
 
+    def _on_reachability_changed(self, reachability: QNetworkInformation.Reachability) -> None:
+        is_online = reachability == QNetworkInformation.Reachability.Online
+        msg = f"Network reachability changed ({reachability})"
+        if is_online and not self.timer.isActive():
+            logging.info(f"{msg}, resuming git fetcher")
+            self.status_message.emit(None)
+            self.timer.start()
+        elif not is_online:
+            logging.info(f"{msg}, pausing git fetcher")
+            self.status_message.emit("Paused (not online)")
+            self.timer.stop()
+
     def start(self):
         self.on_timeout()
         self.timer.start()