xwords/xwords4/android/scripts/logcat.py
2020-11-13 17:43:18 -08:00

66 lines
2.1 KiB
Python
Executable file

#!/usr/bin/python3
"""Beginnings of a script to filter logcat. Eventually I'd like a UI
like what's built into AS or apparently available on the Mac, where
individual tags, threads and and processes can be viewed clicking
buttons or dropdowns. For for now, just a commandline app that watches
for app startup and then prints everything with its PID.
"""
import argparse, re, subprocess, threading
# 10-05 20:49:56.220 11158 11158 I XWApp : onCreate(); git_rev=android_beta_169-17-g94a709423-dirty
# sPIDPat = re.compile('^.*(\d+) (\d+) I XWApp.*git_rev=.*$')
sPIDPat = re.compile('.*\s(\d+)\s(\d+)\sI\sXWApp.*git_rev.*')
sLinePatFmt = '.* (\d+:\d+:\d+.\d+) {pid} (\d+) D (.*): .*'
sLinePats = {}
def addPid(pid):
if not pid in sLinePats:
pat = sLinePatFmt.format(pid=pid)
reg = re.compile(pat)
sLinePats[pid] = reg
print('got pid {}'.format(pid))
def output_reader(proc, args):
if 'PID' in args: addPid(args.PID)
for line in iter(proc.stdout.readline, b''):
line = str(line, 'utf8').strip()
match = sPIDPat.match(line)
if match:
pid1 = int(match.group(1))
pid2 = int(match.group(2))
assert pid1 == pid2
addPid(pid1)
else:
for pat in sLinePats.values():
match = pat.match(line)
if match:
print(line)
break
def mkParser():
parser = argparse.ArgumentParser()
parser.add_argument('--device', dest = 'DEVICE', type = str, default = None,
help = 'device to follow')
parser.add_argument('--pid', dest = 'PID', type = int, default = 0,
help = 'pid of process')
return parser
def main():
args = mkParser().parse_args()
cmds = ['adb']
if args.DEVICE: cmds += ['-s', args.DEVICE ]
cmds += ['logcat']
proc = subprocess.Popen( cmds, stdout=subprocess.PIPE,
stderr=subprocess.STDOUT)
threading.Thread(target=output_reader, args=(proc,args,)).start()
##############################################################################
if __name__ == '__main__':
main()