{"html_url": "https://github.com/simonw/sqlite-utils/issues/433#issuecomment-1444474487", "issue_url": "https://api.github.com/repos/simonw/sqlite-utils/issues/433", "id": 1444474487, "node_id": "IC_kwDOCGYnMM5WGO53", "user": {"value": 167893, "label": "mcarpenter"}, "created_at": "2023-02-24T20:57:43Z", "updated_at": "2023-02-24T22:22:18Z", "author_association": "CONTRIBUTOR", "body": "I think I see what is happening here, although I haven't quite work out a fix yet. Usually:\r\n\r\n* `click.progressbar.render_progress()` renders the cursor invisible on each invocation (update of the bar)\r\n* When the progress bar goes out of scope, the `__exit()__` method is invoked, which calls `render_finish()` to make the cursor re-appear.\r\n\r\n(See terminal escape sequences `BEFORE_BAR` and `AFTER_BAR` in click).\r\n\r\nHowever the sqlite-utils `utils.file_progress` context manager wraps `click.progressbar` and yields an instance of a helper class:\r\n\r\n``` python\r\n@contextlib.contextmanager     \r\ndef file_progress(file, silent=False, **kwargs):\r\n   ...\r\n        with click.progressbar(length=file_length, **kwargs) as bar:\r\n            yield UpdateWrapper(file, bar.update) \r\n```\r\n\r\nThe yielded `UpdateWrapper` goes out of scope quickly and `click.progressbar.__exit__()` is called. The cursor is made un-invisible. Hoewever `bar` is still live and so when the caller iterates on the yielded wrapper this invokes the bar's update method, calling `render_progress()`, each time printing the \"make cursor invisible\" escape code. The `progressbar.__exit__` function is not called again, so the cursor doesn't re-appear.\r\n\r\n", "reactions": "{\"total_count\": 1, \"+1\": 1, \"-1\": 0, \"laugh\": 0, \"hooray\": 0, \"confused\": 0, \"heart\": 0, \"rocket\": 0, \"eyes\": 0}", "issue": {"value": 1239034903, "label": "CLI eats my cursor"}, "performed_via_github_app": null}