Propagate destination of watched folder moves (#70252)

homeassistant/components/folder_watcher/__init__.py

@@ -63,19 +63,30 @@ def create_event_handler(patterns, hass):
             super().__init__(patterns)
             self.hass = hass
 
-        def process(self, event):
+        def process(self, event, moved=False):
             """On Watcher event, fire HA event."""
             _LOGGER.debug("process(%s)", event)
             if not event.is_directory:
                 folder, file_name = os.path.split(event.src_path)
+                fireable = {
+                    "event_type": event.event_type,
+                    "path": event.src_path,
+                    "file": file_name,
+                    "folder": folder,
+                }
+
+                if moved:
+                    dest_folder, dest_file_name = os.path.split(event.dest_path)
+                    fireable.update(
+                        {
+                            "dest_path": event.dest_path,
+                            "dest_file": dest_file_name,
+                            "dest_folder": dest_folder,
+                        }
+                    )
                 self.hass.bus.fire(
                     DOMAIN,
-                    {
-                        "event_type": event.event_type,
-                        "path": event.src_path,
-                        "file": file_name,
-                        "folder": folder,
-                    },
+                    fireable,
                 )
 
         def on_modified(self, event):
@@ -84,7 +95,7 @@ def create_event_handler(patterns, hass):
 
         def on_moved(self, event):
             """File moved."""
-            self.process(event)
+            self.process(event, moved=True)
 
         def on_created(self, event):
             """File created."""

tests/components/folder_watcher/test_init.py

@@ -1,5 +1,6 @@
 """The tests for the folder_watcher component."""
 import os
+from types import SimpleNamespace
 from unittest.mock import Mock, patch
 
 from homeassistant.components import folder_watcher
@@ -43,7 +44,9 @@ def test_event():
         hass = Mock()
         handler = folder_watcher.create_event_handler(["*"], hass)
         handler.on_created(
-            Mock(is_directory=False, src_path="/hello/world.txt", event_type="created")
+            SimpleNamespace(
+                is_directory=False, src_path="/hello/world.txt", event_type="created"
+            )
         )
         assert hass.bus.fire.called
         assert hass.bus.fire.mock_calls[0][1][0] == folder_watcher.DOMAIN
@@ -53,3 +56,39 @@ def test_event():
             "file": "world.txt",
             "folder": "/hello",
         }
+
+
+def test_move_event():
+    """Check that Home Assistant events are fired correctly on watchdog event."""
+
+    class MockPatternMatchingEventHandler:
+        """Mock base class for the pattern matcher event handler."""
+
+        def __init__(self, patterns):
+            pass
+
+    with patch(
+        "homeassistant.components.folder_watcher.PatternMatchingEventHandler",
+        MockPatternMatchingEventHandler,
+    ):
+        hass = Mock()
+        handler = folder_watcher.create_event_handler(["*"], hass)
+        handler.on_moved(
+            SimpleNamespace(
+                is_directory=False,
+                src_path="/hello/world.txt",
+                dest_path="/hello/earth.txt",
+                event_type="moved",
+            )
+        )
+        assert hass.bus.fire.called
+        assert hass.bus.fire.mock_calls[0][1][0] == folder_watcher.DOMAIN
+        assert hass.bus.fire.mock_calls[0][1][1] == {
+            "event_type": "moved",
+            "path": "/hello/world.txt",
+            "dest_path": "/hello/earth.txt",
+            "file": "world.txt",
+            "dest_file": "earth.txt",
+            "folder": "/hello",
+            "dest_folder": "/hello",
+        }