addressed the PR feedback

Author: yurijmikhalevich

src/lightning_app/runners/cloud.py

@@ -236,7 +236,7 @@ def dispatch(
                 f.write("venv/\n")
                 if (root / "bin" / "activate").is_file() or (root / "pyvenv.cfg").is_file():
                     # the user is developing inside venv
-                    f.write("bin/\n" "include/\n" "lib/\n" "pyvenv.cfg\n")
+                    f.write("bin/\ninclude/\nlib/\npyvenv.cfg\n")
 
         repo = LocalSourceCodeDir(path=root, ignore_functions=ignore_functions)
         self._check_uploaded_folder(root, repo)
@@ -565,7 +565,8 @@ def _check_uploaded_folder(root: Path, repo: LocalSourceCodeDir) -> None:
                 f"The total size is {round(app_folder_size_in_mb, 2)} MB. {len(files)} files were uploaded.\n"
                 + largest_paths_msg
                 + "Perhaps you should try running the app in an empty directory.\n"
-                "You can ignore some files or folders by adding them to `.lightningignore`."
+                + "You can ignore some files or folders by adding them to `.lightningignore`.\n"
+                + " You can also set the `self.lightningingore` attribute in a Flow or Work."
             )
 
             logger.warn(warning_msg)

tests/tests_app/runners/test_cloud.py

@@ -1335,6 +1335,7 @@ def test_check_uploaded_folder(monkeypatch, tmpdir, caplog):
     assert "3 files were uploaded" in caplog.text
     assert "files:\n6.0 MB: c.jpg\n5.0 MB: b.txt\n4.0 MB: a.png\nPerhaps" in caplog.text  # tests the order
     assert "adding them to `.lightningignore`." in caplog.text
+    assert "lightningingore` attribute in a Flow or Work" in caplog.text
 
 
 @mock.patch("lightning_app.core.queues.QueuingSystem", MagicMock())
@@ -1598,6 +1599,8 @@ def run(self):
     write_file_of_size(path / "a.txt", 5 * 1000 * 1000)
     write_file_of_size(path / "venv" / "foo.txt", 4 * 1000 * 1000)
 
+    assert not (path / ".lightningignore").exists()
+
     with mock.patch(
         "lightning_app.runners.cloud._parse_lightningignore", wraps=_parse_lightningignore
     ) as parse_mock, mock.patch(