b21680baf5
Flagged by flake8 v3.6.0, as W605, plus a few others identified incidentally, e.g. 59ffecf66cf4d08c4b431e457b083878d66a3fd6. Note that r"\n" matches to "\n" under re.match/search.
198 lines
7.4 KiB
Python
Executable file
198 lines
7.4 KiB
Python
Executable file
#!/usr/bin/env python3
|
|
"""Combine logs from multiple bitcoin nodes as well as the test_framework log.
|
|
|
|
This streams the combined log output to stdout. Use combine_logs.py > outputfile
|
|
to write to an outputfile.
|
|
|
|
If no argument is provided, the most recent test directory will be used."""
|
|
|
|
import argparse
|
|
from collections import defaultdict, namedtuple
|
|
import glob
|
|
import heapq
|
|
import itertools
|
|
import os
|
|
import pathlib
|
|
import re
|
|
import sys
|
|
import tempfile
|
|
|
|
# N.B.: don't import any local modules here - this script must remain executable
|
|
# without the parent module installed.
|
|
|
|
# Should match same symbol in `test_framework.test_framework`.
|
|
TMPDIR_PREFIX = "bitcoin_func_test_"
|
|
|
|
# Matches on the date format at the start of the log event
|
|
TIMESTAMP_PATTERN = re.compile(r"^\d{4}-\d{2}-\d{2}T\d{2}:\d{2}:\d{2}(\.\d{6})?Z")
|
|
|
|
LogEvent = namedtuple('LogEvent', ['timestamp', 'source', 'event'])
|
|
|
|
def main():
|
|
"""Main function. Parses args, reads the log files and renders them as text or html."""
|
|
parser = argparse.ArgumentParser(
|
|
description=__doc__, formatter_class=argparse.RawTextHelpFormatter)
|
|
parser.add_argument(
|
|
'testdir', nargs='?', default='',
|
|
help=('temporary test directory to combine logs from. '
|
|
'Defaults to the most recent'))
|
|
parser.add_argument('-c', '--color', dest='color', action='store_true', help='outputs the combined log with events colored by source (requires posix terminal colors. Use less -r for viewing)')
|
|
parser.add_argument('--html', dest='html', action='store_true', help='outputs the combined log as html. Requires jinja2. pip install jinja2')
|
|
args = parser.parse_args()
|
|
|
|
if args.html and args.color:
|
|
print("Only one out of --color or --html should be specified")
|
|
sys.exit(1)
|
|
|
|
testdir = args.testdir or find_latest_test_dir()
|
|
|
|
if not testdir:
|
|
print("No test directories found")
|
|
sys.exit(1)
|
|
|
|
if not args.testdir:
|
|
print("Opening latest test directory: {}".format(testdir), file=sys.stderr)
|
|
|
|
colors = defaultdict(lambda: '')
|
|
if args.color:
|
|
colors["test"] = "\033[0;36m" # CYAN
|
|
colors["node0"] = "\033[0;34m" # BLUE
|
|
colors["node1"] = "\033[0;32m" # GREEN
|
|
colors["node2"] = "\033[0;31m" # RED
|
|
colors["node3"] = "\033[0;33m" # YELLOW
|
|
colors["reset"] = "\033[0m" # Reset font color
|
|
|
|
log_events = read_logs(testdir)
|
|
|
|
if args.html:
|
|
print_logs_html(log_events)
|
|
else:
|
|
print_logs_plain(log_events, colors)
|
|
print_node_warnings(testdir, colors)
|
|
|
|
|
|
def read_logs(tmp_dir):
|
|
"""Reads log files.
|
|
|
|
Delegates to generator function get_log_events() to provide individual log events
|
|
for each of the input log files."""
|
|
|
|
# Find out what the folder is called that holds the debug.log file
|
|
chain = glob.glob("{}/node0/*/debug.log".format(tmp_dir))
|
|
if chain:
|
|
chain = chain[0] # pick the first one if more than one chain was found (should never happen)
|
|
chain = re.search(r'node0/(.+?)/debug\.log$', chain).group(1) # extract the chain name
|
|
else:
|
|
chain = 'regtest' # fallback to regtest (should only happen when none exists)
|
|
|
|
files = [("test", "%s/test_framework.log" % tmp_dir)]
|
|
for i in itertools.count():
|
|
logfile = "{}/node{}/{}/debug.log".format(tmp_dir, i, chain)
|
|
if not os.path.isfile(logfile):
|
|
break
|
|
files.append(("node%d" % i, logfile))
|
|
|
|
return heapq.merge(*[get_log_events(source, f) for source, f in files])
|
|
|
|
|
|
def print_node_warnings(tmp_dir, colors):
|
|
"""Print nodes' errors and warnings"""
|
|
|
|
warnings = []
|
|
for stream in ['stdout', 'stderr']:
|
|
for i in itertools.count():
|
|
folder = "{}/node{}/{}".format(tmp_dir, i, stream)
|
|
if not os.path.isdir(folder):
|
|
break
|
|
for (_, _, fns) in os.walk(folder):
|
|
for fn in fns:
|
|
warning = pathlib.Path('{}/{}'.format(folder, fn)).read_text().strip()
|
|
if warning:
|
|
warnings.append(("node{} {}".format(i, stream), warning))
|
|
|
|
print()
|
|
for w in warnings:
|
|
print("{} {} {} {}".format(colors[w[0].split()[0]], w[0], w[1], colors["reset"]))
|
|
|
|
|
|
def find_latest_test_dir():
|
|
"""Returns the latest tmpfile test directory prefix."""
|
|
tmpdir = tempfile.gettempdir()
|
|
|
|
def join_tmp(basename):
|
|
return os.path.join(tmpdir, basename)
|
|
|
|
def is_valid_test_tmpdir(basename):
|
|
fullpath = join_tmp(basename)
|
|
return (
|
|
os.path.isdir(fullpath)
|
|
and basename.startswith(TMPDIR_PREFIX)
|
|
and os.access(fullpath, os.R_OK)
|
|
)
|
|
|
|
testdir_paths = [
|
|
join_tmp(name) for name in os.listdir(tmpdir) if is_valid_test_tmpdir(name)
|
|
]
|
|
|
|
return max(testdir_paths, key=os.path.getmtime) if testdir_paths else None
|
|
|
|
|
|
def get_log_events(source, logfile):
|
|
"""Generator function that returns individual log events.
|
|
|
|
Log events may be split over multiple lines. We use the timestamp
|
|
regex match as the marker for a new log event."""
|
|
try:
|
|
with open(logfile, 'r', encoding='utf-8') as infile:
|
|
event = ''
|
|
timestamp = ''
|
|
for line in infile:
|
|
# skip blank lines
|
|
if line == '\n':
|
|
continue
|
|
# if this line has a timestamp, it's the start of a new log event.
|
|
time_match = TIMESTAMP_PATTERN.match(line)
|
|
if time_match:
|
|
if event:
|
|
yield LogEvent(timestamp=timestamp, source=source, event=event.rstrip())
|
|
timestamp = time_match.group()
|
|
if time_match.group(1) is None:
|
|
# timestamp does not have microseconds. Add zeroes.
|
|
timestamp_micro = timestamp.replace("Z", ".000000Z")
|
|
line = line.replace(timestamp, timestamp_micro)
|
|
timestamp = timestamp_micro
|
|
event = line
|
|
# if it doesn't have a timestamp, it's a continuation line of the previous log.
|
|
else:
|
|
# Add the line. Prefix with space equivalent to the source + timestamp so log lines are aligned
|
|
event += " " + line
|
|
# Flush the final event
|
|
yield LogEvent(timestamp=timestamp, source=source, event=event.rstrip())
|
|
except FileNotFoundError:
|
|
print("File %s could not be opened. Continuing without it." % logfile, file=sys.stderr)
|
|
|
|
|
|
def print_logs_plain(log_events, colors):
|
|
"""Renders the iterator of log events into text."""
|
|
for event in log_events:
|
|
lines = event.event.splitlines()
|
|
print("{0} {1: <5} {2} {3}".format(colors[event.source.rstrip()], event.source, lines[0], colors["reset"]))
|
|
if len(lines) > 1:
|
|
for line in lines[1:]:
|
|
print("{0}{1}{2}".format(colors[event.source.rstrip()], line, colors["reset"]))
|
|
|
|
|
|
def print_logs_html(log_events):
|
|
"""Renders the iterator of log events into html."""
|
|
try:
|
|
import jinja2
|
|
except ImportError:
|
|
print("jinja2 not found. Try `pip install jinja2`")
|
|
sys.exit(1)
|
|
print(jinja2.Environment(loader=jinja2.FileSystemLoader('./'))
|
|
.get_template('combined_log_template.html')
|
|
.render(title="Combined Logs from testcase", log_events=[event._asdict() for event in log_events]))
|
|
|
|
|
|
if __name__ == '__main__':
|
|
main()
|