openpilot v0.9.6 release

date: 2024-01-12T10:13:37
master commit: ba792d576a49a0899b88a753fa1c52956bedf9e6

tools/lib/helpers.py

@@ -0,0 +1,35 @@
+import bz2
+import datetime
+
+TIME_FMT = "%Y-%m-%d--%H-%M-%S"
+
+# regex patterns
+class RE:
+  DONGLE_ID =  r'(?P<dongle_id>[a-z0-9]{16})'
+  TIMESTAMP = r'(?P<timestamp>[0-9]{4}-[0-9]{2}-[0-9]{2}--[0-9]{2}-[0-9]{2}-[0-9]{2})'
+  ROUTE_NAME = r'(?P<route_name>{}[|_/]{})'.format(DONGLE_ID, TIMESTAMP)
+  SEGMENT_NAME = r'{}(?:--|/)(?P<segment_num>[0-9]+)'.format(ROUTE_NAME)
+  INDEX = r'-?[0-9]+'
+  SLICE = r'(?P<start>{})?:?(?P<end>{})?:?(?P<step>{})?'.format(INDEX, INDEX, INDEX)
+  SEGMENT_RANGE = r'{}(?:--|/)?(?P<slice>({}))?/?(?P<selector>([qr]))?'.format(ROUTE_NAME, SLICE)
+  BOOTLOG_NAME = ROUTE_NAME
+
+  EXPLORER_FILE = r'^(?P<segment_name>{})--(?P<file_name>[a-z]+\.[a-z0-9]+)$'.format(SEGMENT_NAME)
+  OP_SEGMENT_DIR = r'^(?P<segment_name>{})$'.format(SEGMENT_NAME)
+
+
+def timestamp_to_datetime(t: str) -> datetime.datetime:
+  """
+    Convert an openpilot route timestamp to a python datetime
+  """
+  return datetime.datetime.strptime(t, TIME_FMT)
+
+
+def save_log(dest, log_msgs, compress=True):
+  dat = b"".join(msg.as_builder().to_bytes() for msg in log_msgs)
+
+  if compress:
+    dat = bz2.compress(dat)
+
+  with open(dest, "wb") as f:
+    f.write(dat)