Bowrna commented on code in PR #24236:
URL: https://github.com/apache/airflow/pull/24236#discussion_r894111895
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dev/breeze/src/airflow_breeze/commands/testing_commands.py:
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@@ -112,6 +129,93 @@ def docker_compose_tests(
sys.exit(return_code)
+class MonitoringThread(Thread):
+ """Thread class with a stop() method. The thread itself has to check
+ regularly for the stopped() condition."""
+
+ def __init__(self, title: str, file_name: str):
+ super().__init__(target=self.peek_percent_at_last_lines_of_file,
daemon=True)
+ self._stop_event = Event()
+ self.title = title
+ self.file_name = file_name
+
+ def peek_percent_at_last_lines_of_file(self) -> None:
+ max_line_length = 400
+ matcher = re.compile(r"^.*\[([^\]]*)\]$")
+ while not self.stopped():
+ if os.path.exists(self.file_name):
+ try:
+ with open(self.file_name, 'rb') as temp_f:
+ temp_f.seek(-(max_line_length * 2), os.SEEK_END)
Review Comment:
@potiuk Could you explain me why you are doing this part? I can understand
that you are trying to read the last lines of file, but i don't understand why
you are passing `-(max_line_length * 2)`
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