tests/logexceptions.py
author Sune Foldager <cryo@cyanite.org>
Mon, 25 Jun 2018 16:36:14 +0200
branchstable
changeset 38455 0b63a6743010
parent 36037 8de90e006c78
child 43076 2372284d9457
permissions -rw-r--r--
procutil: use unbuffered stdout on Windows Windows doesn't support line buffering, treating it as fully buffered. This causes output of slow commands to stutter. We use unbuffered instead.
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# logexceptions.py - Write files containing info about Mercurial exceptions
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#
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# Copyright 2017 Matt Mackall <mpm@selenic.com>
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#
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# This software may be used and distributed according to the terms of the
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# GNU General Public License version 2 or any later version.
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from __future__ import absolute_import
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import inspect
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import os
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import sys
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import traceback
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import uuid
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from mercurial import (
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    dispatch,
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    extensions,
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)
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def handleexception(orig, ui):
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    res = orig(ui)
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    if not ui.environ.get(b'HGEXCEPTIONSDIR'):
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        return res
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    dest = os.path.join(ui.environ[b'HGEXCEPTIONSDIR'],
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                        str(uuid.uuid4()).encode('ascii'))
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    exc_type, exc_value, exc_tb = sys.exc_info()
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    stack = []
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    tb = exc_tb
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    while tb:
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        stack.append(tb)
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        tb = tb.tb_next
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    stack.reverse()
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    hgframe = 'unknown'
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    hgline = 'unknown'
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    # Find the first Mercurial frame in the stack.
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    for tb in stack:
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        mod = inspect.getmodule(tb)
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        if not mod.__name__.startswith(('hg', 'mercurial')):
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            continue
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        frame = tb.tb_frame
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        try:
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            with open(inspect.getsourcefile(tb), 'r') as fh:
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                hgline = fh.readlines()[frame.f_lineno - 1].strip()
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        except (IndexError, OSError):
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            pass
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        hgframe = '%s:%d' % (frame.f_code.co_filename, frame.f_lineno)
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        break
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    primary = traceback.extract_tb(exc_tb)[-1]
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    primaryframe = '%s:%d' % (primary.filename, primary.lineno)
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    with open(dest, 'wb') as fh:
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        parts = [
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            str(exc_value),
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            primaryframe,
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            hgframe,
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            hgline,
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            ui.environ[b'TESTNAME'].decode('utf-8', 'replace'),
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        ]
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        fh.write(b'\0'.join(p.encode('utf-8', 'replace') for p in parts))
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def extsetup(ui):
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    extensions.wrapfunction(dispatch, 'handlecommandexception',
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                            handleexception)