klipper/scripts/logextract.py

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#!/usr/bin/env python2
# Script to extract a config file from a log
#
# Copyright (C) 2017 Kevin O'Connor <kevin@koconnor.net>
#
# This file may be distributed under the terms of the GNU GPLv3 license.
import sys, re, collections
def format_comment(line_num, line):
return "# %6d: %s" % (line_num, line)
######################################################################
# Config file extraction
######################################################################
class GatherConfig:
def __init__(self, configs, line_num, recent_lines, logname):
self.configs = configs
self.line_num = line_num
self.config_num = len(configs) + 1
self.filename = "%s.config%04d.cfg" % (logname, self.config_num)
self.config_lines = []
self.comments = []
def add_line(self, line_num, line):
if line != '=======================':
self.config_lines.append(line)
return True
self.finalize()
return False
def finalize(self):
lines = tuple(self.config_lines)
ch = self.configs.get(lines)
if ch is None:
self.configs[lines] = ch = self
else:
ch.comments.extend(self.comments)
ch.comments.append(format_comment(self.line_num, "config file"))
def add_comment(self, comment):
if comment is not None:
self.comments.append(comment)
def write_file(self):
f = open(self.filename, 'wb')
f.write('\n'.join(self.comments + self.config_lines))
f.close()
######################################################################
# Shutdown extraction
######################################################################
stats_seq_s = r" send_seq=(?P<sseq>[0-9]+) receive_seq=(?P<rseq>[0-9]+) "
count_s = r"(?P<count>[0-9]+)"
time_s = r"(?P<time>[0-9]+[.][0-9]+)"
esttime_s = r"(?P<esttime>[0-9]+[.][0-9]+)"
shortseq_s = r"(?P<shortseq>[0-9a-f])"
stats_r = re.compile(r"^Stats " + time_s + ": .*" + stats_seq_s)
serial_dump_r = re.compile(r"^Dumping serial stats: .*" + stats_seq_s)
send_dump_r = re.compile(r"^Dumping send queue " + count_s + " messages$")
sent_r = re.compile(r"^Sent " + count_s + " " + esttime_s + " " + time_s
+ " [0-9]+: seq: 1" + shortseq_s + ",")
receive_dump_r = re.compile(r"^Dumping receive queue " + count_s + " messages$")
receive_r = re.compile(r"^Receive: " + count_s + " " + time_s + " " + esttime_s
+ " [0-9]+: seq: 1" + shortseq_s + ",")
gcode_r = re.compile(r"^Read " + time_s + ": ['\"]")
clock_r = re.compile(r"^clocksync state: .* clock_est=\((?P<st>[^ ]+)"
+ r" (?P<sc>[0-9]+) (?P<f>[^ ]+)\)")
repl_seq_r = re.compile(r": seq: 1" + shortseq_s)
repl_clock_r = re.compile(r"clock=(?P<clock>[0-9]+) ")
def add_high_bits(val, ref, mask):
half = (mask + 1) // 2
return ref + ((val - (ref & mask) + half) & mask) - half
class GatherShutdown:
def __init__(self, configs, line_num, recent_lines, logname):
self.shutdown_line_num = line_num
self.filename = "%s.shutdown%05d" % (logname, line_num)
configs_by_id = {c.config_num: c for c in configs.values()}
self.config = configs_by_id[max(configs_by_id.keys())]
self.comments = ["# config %s" % (self.config.filename,)]
self.config.add_comment(format_comment(line_num, recent_lines[-1][1]))
self.stats_stream = []
self.gcode_stream = []
self.sent_stream = []
self.receive_stream = []
self.sent_time_to_seq = {}
self.sent_seq_to_time = {}
self.receive_seq_to_time = {}
self.clock_est = 0., 0., 1.
self.shutdown_seq = None
self.first_stat_time = self.last_stat_time = None
self.send_count = self.receive_count = 0
for line_num, line in recent_lines:
self.parse_line(line_num, line)
self.first_stat_time = self.last_stat_time
def add_comment(self, comment):
if comment is not None:
self.comments.append(comment)
def trans_clock(self, clock, ts):
sample_time, sample_clock, freq = self.clock_est
exp_clock = int(sample_clock + (ts - sample_time) * freq)
ext_clock = add_high_bits(clock, exp_clock, 0xffffffff)
return sample_time + (ext_clock - sample_clock) / freq
def annotate(self, line, seq, ts):
line = repl_seq_r.sub(r"\g<0>(%d)" % (seq,), line)
def clock_update(m):
return m.group(0)[:-1] + "(%.6f) " % (
self.trans_clock(int(m.group('clock')), ts),)
line = repl_clock_r.sub(clock_update, line)
return line
def add_line(self, line_num, line):
self.parse_line(line_num, line)
if (self.first_stat_time is not None
and self.last_stat_time > self.first_stat_time + 5.):
self.finalize()
return False
if (line.startswith('Git version') or line.startswith('Start printer at')
or line == '===== Config file ====='):
self.finalize()
return False
return True
def parse_line(self, line_num, line):
m = sent_r.match(line)
if m is not None:
shortseq = int(m.group('shortseq'), 16)
seq = self.shutdown_seq + int(m.group('count')) - self.send_count
seq = add_high_bits(shortseq, seq, 0xf)
ts = float(m.group('time'))
esttime = float(m.group('esttime'))
self.sent_time_to_seq[(esttime, seq & 0xf)] = seq
self.sent_seq_to_time[seq] = ts
line = self.annotate(line, seq, ts)
self.sent_stream.append((ts, line_num, line))
return
m = receive_r.match(line)
if m is not None:
shortseq = int(m.group('shortseq'), 16)
ts = float(m.group('time'))
esttime = float(m.group('esttime'))
seq = self.sent_time_to_seq.get((esttime, (shortseq - 1) & 0xf))
if seq is not None:
self.receive_seq_to_time[seq + 1] = ts
line = self.annotate(line, seq, ts)
self.receive_stream.append((ts, line_num, line))
return
m = gcode_r.match(line)
if m is not None:
ts = float(m.group('time'))
self.gcode_stream.append((ts, line_num, line))
return
m = stats_r.match(line)
if m is not None:
ts = float(m.group('time'))
sseq = int(m.group('sseq'))
rseq = int(m.group('rseq'))
self.last_stat_time = ts
if self.first_stat_time is None:
self.first_stat_time = ts
self.stats_stream.append((ts, sseq, rseq, line_num, line))
return
m = clock_r.match(line)
if m is not None:
st = float(m.group('st'))
sc = int(m.group('sc'))
f = float(m.group('f'))
self.clock_est = (st, sc, f)
m = serial_dump_r.match(line)
if m is not None:
self.shutdown_seq = int(m.group('rseq'))
m = send_dump_r.match(line)
if m is not None:
self.send_count = int(m.group('count'))
m = receive_dump_r.match(line)
if m is not None:
self.receive_count = int(m.group('count'))
self.stats_stream.append((None, None, None, line_num, line))
def finalize(self):
# Ignore old stats
stream_ts = [i[0] for i in self.sent_stream + self.receive_stream]
if not stream_ts:
return
min_stream_ts = min(stream_ts)
max_stream_ts = max(stream_ts)
for i, info in enumerate(self.stats_stream):
if info[0] is not None and info[0] >= min_stream_ts - 5.:
del self.stats_stream[:i]
break
# Improve accuracy of stats timestamps
last_ts = self.stats_stream[0][0]
out = []
for i in range(len(self.stats_stream)):
ts, sseq, rseq, line_num, line = self.stats_stream[i]
if ts is not None:
min_ts = max(self.sent_seq_to_time.get(sseq-1, 0),
self.receive_seq_to_time.get(rseq, 0))
max_ts = min(self.sent_seq_to_time.get(sseq, 999999999999),
self.receive_seq_to_time.get(rseq+1, 999999999999))
last_ts = min(max(ts, min_ts + 0.00000001),
max_ts - 0.00000001)
elif line_num >= self.shutdown_line_num and last_ts <= max_stream_ts:
last_ts = max_stream_ts + 0.00000001
out.append((last_ts, line_num, line))
# Make sure no timestamp goes backwards
for s in [self.sent_stream, self.receive_stream, self.gcode_stream]:
for i in range(1, len(s)):
if s[i-1][0] > s[i][0]:
s[i] = (s[i-1][0], s[i][1], s[i][2])
# Produce output sorted by timestamp
out = out + self.sent_stream + self.receive_stream + self.gcode_stream
out.sort()
out = [i[2] for i in out]
f = open(self.filename, 'wb')
f.write('\n'.join(self.comments + out))
f.close()
######################################################################
# Startup
######################################################################
def main():
logname = sys.argv[1]
last_git = last_start = None
configs = {}
handler = None
recent_lines = collections.deque([], 200)
# Parse log file
f = open(logname, 'rb')
for line_num, line in enumerate(f):
line = line.rstrip()
line_num += 1
recent_lines.append((line_num, line))
if handler is not None:
ret = handler.add_line(line_num, line)
if ret:
continue
recent_lines.clear()
handler = None
if line.startswith('Git version'):
last_git = format_comment(line_num, line)
elif line.startswith('Start printer at'):
last_start = format_comment(line_num, line)
elif line == '===== Config file =====':
handler = GatherConfig(configs, line_num, recent_lines, logname)
handler.add_comment(last_git)
handler.add_comment(last_start)
elif 'shutdown: ' in line or line.startswith('Dumping '):
handler = GatherShutdown(configs, line_num, recent_lines, logname)
handler.add_comment(last_git)
handler.add_comment(last_start)
if handler is not None:
handler.finalize()
# Write found config files
for cfg in configs.values():
cfg.write_file()
if __name__ == '__main__':
main()