#!/usr/bin/env python
############################################################################
#
# Copyright (C) 2012, 2013 PX4 Development Team. All rights reserved.
#
# Redistribution and use in source and binary forms, with or without
# modification, are permitted provided that the following conditions
# are met:
#
# 1. Redistributions of source code must retain the above copyright
# notice, this list of conditions and the following disclaimer.
# 2. Redistributions in binary form must reproduce the above copyright
# notice, this list of conditions and the following disclaimer in
# the documentation and/or other materials provided with the
# distribution.
# 3. Neither the name PX4 nor the names of its contributors may be
# used to endorse or promote products derived from this software
# without specific prior written permission.
#
# THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
# "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
# LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS
# FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE
# COPYRIGHT OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT,
# INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING,
# BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
# OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED
# AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
# LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN
# ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
# POSSIBILITY OF SUCH DAMAGE.
#
############################################################################
#
# Log fetcher
#
# Print list of logs:
# python fetch_log.py
#
# Fetch log:
# python fetch_log.py sess001/log001.bin
#
import serial, time, sys, os
def wait_for_string(ser, s, timeout=1.0, debug=False):
t0 = time.time()
buf = []
res = []
n = 0
while (True):
c = ser.read()
if debug:
sys.stderr.write(c)
buf.append(c)
if len(buf) > len(s):
res.append(buf.pop(0))
n += 1
if n % 10000 == 0:
sys.stderr.write(str(n) + "\n")
if "".join(buf) == s:
break
if timeout > 0.0 and time.time() - t0 > timeout:
raise Exception("Timeout while waiting for: " + s)
return "".join(res)
def exec_cmd(ser, cmd, timeout):
ser.write(cmd + "\n")
ser.flush()
wait_for_string(ser, cmd + "\r\n", timeout)
return wait_for_string(ser, "nsh> \x1b[K", timeout)
def ls_dir(ser, dir, timeout=1.0):
res = []
for line in exec_cmd(ser, "ls -l " + dir, timeout).splitlines()[1:]:
res.append((line[20:], int(line[11:19].strip()), line[1] == "d"))
return res
def list_logs(ser):
logs_dir = "/fs/microsd/log"
res = []
for d in ls_dir(ser, logs_dir):
if d[2]:
sess_dir = d[0][:-1]
for f in ls_dir(ser, logs_dir + "/" + sess_dir):
log_file = f[0]
log_size = f[1]
res.append(sess_dir + "/" + log_file + "\t" + str(log_size))
return "\n".join(res)
def fetch_log(ser, fn, timeout):
cmd = "dumpfile " + fn
ser.write(cmd + "\n")
ser.flush()
wait_for_string(ser, cmd + "\r\n", timeout, True)
res = wait_for_string(ser, "\n", timeout, True)
data = []
if res.startswith("OK"):
size = int(res.split()[1])
n = 0
print "Reading data:"
while (n < size):
buf = ser.read(min(size - n, 8192))
data.append(buf)
n += len(buf)
sys.stdout.write(".")
sys.stdout.flush()
print
else:
raise Exception("Error reading log")
wait_for_string(ser, "nsh> \x1b[K", timeout)
return "".join(data)
def main():
dev = "/dev/tty.usbmodem1"
ser = serial.Serial(dev, "115200", timeout=0.2)
if len(sys.argv) < 2:
print list_logs(ser)
else:
log_file = sys.argv[1]
data = fetch_log(ser, "/fs/microsd/log/" + log_file, 1.0)
try:
os.mkdir(log_file.split("/")[0])
except:
pass
fout = open(log_file, "wb")
fout.write(data)
fout.close()
ser.close()
if __name__ == "__main__":
main()
