dragonpilot - 基於 openpilot 的開源駕駛輔助系統
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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})'
LOG_ID = r"(?P<log_id>{})".format(TIMESTAMP)
ROUTE_NAME = r'(?P<route_name>{}[|_/]{})'.format(DONGLE_ID, LOG_ID)
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>([qra]))?'.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)