view tests/filtertraceback.py @ 46015:f44b9c72f061

run-tests: allow some slack about 'waiting on lock' message

It is common to run the tests on very loaded machine when concurrent run might
take a bit longer. Such message are usually harmless, but anoying as they break
the tests.

Test that explicitly depends on this value have been adjusted. This make them
more robust anyway.

A fun case was `test-clone-pull-corruption.t` which, without the previous
changeset introducing extra flushing, ended use having a line 31 (`pulling from
../source`) changing order because the warning message was no longer flushing
stdin before using stderr (stderr being invisible in the test).

Differential Revision: https://phab.mercurial-scm.org/D9507

#!/usr/bin/env python3

# Filters traceback lines from stdin.

from __future__ import absolute_import, print_function

import io
import sys

if sys.version_info[0] >= 3:
    # Prevent \r from being inserted on Windows.
    sys.stdout = io.TextIOWrapper(
        sys.stdout.buffer,
        sys.stdout.encoding,
        sys.stdout.errors,
        newline="\n",
        line_buffering=sys.stdout.line_buffering,
    )

state = 'none'

for line in sys.stdin:
    if state == 'none':
        if line.startswith('Traceback '):
            state = 'tb'

    elif state == 'tb':
        if line.startswith('  File '):
            state = 'file'
            continue

        elif not line.startswith(' '):
            state = 'none'

    elif state == 'file':
        # Ignore lines after "  File "
        state = 'tb'
        continue

    print(line, end='')