revlog: make chainbase cache its result for the correct revision
Previously, as 'rev' was our iterator, we were always caching the chain base
for the second revision of the chain, or for the base itself.
# logexceptions.py - Write files containing info about Mercurial exceptions
#
# Copyright 2017 Matt Mackall <mpm@selenic.com>
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
from __future__ import absolute_import
import inspect
import os
import sys
import traceback
import uuid
from mercurial import (
dispatch,
extensions,
)
def handleexception(orig, ui):
res = orig(ui)
if not ui.environ.get(b'HGEXCEPTIONSDIR'):
return res
dest = os.path.join(ui.environ[b'HGEXCEPTIONSDIR'],
str(uuid.uuid4()).encode('ascii'))
exc_type, exc_value, exc_tb = sys.exc_info()
stack = []
tb = exc_tb
while tb:
stack.append(tb)
tb = tb.tb_next
stack.reverse()
hgframe = 'unknown'
hgline = 'unknown'
# Find the first Mercurial frame in the stack.
for tb in stack:
mod = inspect.getmodule(tb)
if not mod.__name__.startswith(('hg', 'mercurial')):
continue
frame = tb.tb_frame
try:
with open(inspect.getsourcefile(tb), 'r') as fh:
hgline = fh.readlines()[frame.f_lineno - 1].strip()
except (IndexError, OSError):
pass
hgframe = '%s:%d' % (frame.f_code.co_filename, frame.f_lineno)
break
primary = traceback.extract_tb(exc_tb)[-1]
primaryframe = '%s:%d' % (primary.filename, primary.lineno)
with open(dest, 'wb') as fh:
parts = [
str(exc_value),
primaryframe,
hgframe,
hgline,
ui.environ[b'TESTNAME'].decode('utf-8', 'replace'),
]
fh.write(b'\0'.join(p.encode('utf-8', 'replace') for p in parts))
def extsetup(ui):
extensions.wrapfunction(dispatch, 'handlecommandexception',
handleexception)