view tests/filtertraceback.py @ 48912:a0674e916fb6

worker: silence type error when calling pickle

pytype is complaining that the argument to `pickle.load()` is not an
`IO`. pytype isn't wrong: `_blockingreader` doesn't implement
`io.RawIOBase`, only `read()` and `readline()`. But it appears this is
enough for pickle. So we silence the false positive.

This fixes a regression introduced by D12304 /
cc0e059d2af8: worker: remove Python 2 support code.

Differential Revision: https://phab.mercurial-scm.org/D12337

#!/usr/bin/env python3

# Filters traceback lines from stdin.


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='')