revlog-split: make sure the self._indexfile attribut is reset (issue6811)
Before this change, after a transaction committing a file split, a revlog
object would have its `self._indexfile` attribute desynchronised from the
actual file storing the data. If that same object is reused (as we do for the
manifest during clone bundles), this lead to the data being writting in the
wrong location and the repository to go corrupt.
We not properly reset the attribut when applicable and everything is back in
working order.
# loggingutil.py - utility for logging events
#
# Copyright 2010 Nicolas Dumazet
# Copyright 2013 Facebook, Inc.
#
# This software may be used and distributed according to the terms of the
# GNU General Public License version 2 or any later version.
import errno
from . import (
encoding,
)
from .utils import (
dateutil,
procutil,
stringutil,
)
def openlogfile(ui, vfs, name, maxfiles=0, maxsize=0):
"""Open log file in append mode, with optional rotation
If maxsize > 0, the log file will be rotated up to maxfiles.
"""
def rotate(oldpath, newpath):
try:
vfs.unlink(newpath)
except OSError as err:
if err.errno != errno.ENOENT:
ui.debug(
b"warning: cannot remove '%s': %s\n"
% (newpath, encoding.strtolocal(err.strerror))
)
try:
if newpath:
vfs.rename(oldpath, newpath)
except OSError as err:
if err.errno != errno.ENOENT:
ui.debug(
b"warning: cannot rename '%s' to '%s': %s\n"
% (newpath, oldpath, encoding.strtolocal(err.strerror))
)
if maxsize > 0:
try:
st = vfs.stat(name)
except OSError:
pass
else:
if st.st_size >= maxsize:
path = vfs.join(name)
for i in range(maxfiles - 1, 1, -1):
rotate(
oldpath=b'%s.%d' % (path, i - 1),
newpath=b'%s.%d' % (path, i),
)
rotate(oldpath=path, newpath=maxfiles > 0 and path + b'.1')
return vfs(name, b'a', makeparentdirs=False)
def _formatlogline(msg):
date = dateutil.datestr(format=b'%Y/%m/%d %H:%M:%S')
pid = procutil.getpid()
return b'%s (%d)> %s' % (date, pid, msg)
def _matchevent(event, tracked):
return b'*' in tracked or event in tracked
class filelogger:
"""Basic logger backed by physical file with optional rotation"""
def __init__(self, vfs, name, tracked, maxfiles=0, maxsize=0):
self._vfs = vfs
self._name = name
self._trackedevents = set(tracked)
self._maxfiles = maxfiles
self._maxsize = maxsize
def tracked(self, event):
return _matchevent(event, self._trackedevents)
def log(self, ui, event, msg, opts):
line = _formatlogline(msg)
try:
with openlogfile(
ui,
self._vfs,
self._name,
maxfiles=self._maxfiles,
maxsize=self._maxsize,
) as fp:
fp.write(line)
except IOError as err:
ui.debug(
b'cannot write to %s: %s\n'
% (self._name, stringutil.forcebytestr(err))
)
class fileobjectlogger:
"""Basic logger backed by file-like object"""
def __init__(self, fp, tracked):
self._fp = fp
self._trackedevents = set(tracked)
def tracked(self, event):
return _matchevent(event, self._trackedevents)
def log(self, ui, event, msg, opts):
line = _formatlogline(msg)
try:
self._fp.write(line)
self._fp.flush()
except IOError as err:
ui.debug(
b'cannot write to %s: %s\n'
% (
stringutil.forcebytestr(self._fp.name),
stringutil.forcebytestr(err),
)
)
class proxylogger:
"""Forward log events to another logger to be set later"""
def __init__(self):
self.logger = None
def tracked(self, event):
return self.logger is not None and self.logger.tracked(event)
def log(self, ui, event, msg, opts):
assert self.logger is not None
self.logger.log(ui, event, msg, opts)