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lfs: only hardlink between the usercache and local store if the blob verifies...
lfs: only hardlink between the usercache and local store if the blob verifies This fixes the issue where verify (and other read commands) would propagate corrupt blobs. I originalled coded this to only hardlink if 'verify=True' for store.read(), but then good blobs weren't being linked, and this broke a bunch of tests. (The blob in repo5 that is being corrupted seems to be linked into repo5 in the loop running dumpflog.py prior to it being corrupted, but only if verify=False is handled too.) It's probably better to do a one time extra verification in order to create these files, so that the repo can be copied to a removable drive. Adding the same check to store.write() was only for completeness, but also needs to do a one time extra verification to avoid breaking tests.

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__init__.py
79 lines | 2.4 KiB | text/x-python | PythonLexer
Siddharth Agarwal
demandimport: move to separate package...
r32420 # hgdemandimport - global demand-loading of modules for Mercurial
#
# Copyright 2017 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.
'''demandimport - automatic demand-loading of modules'''
# This is in a separate package from mercurial because in Python 3,
# demand loading is per-package. Keeping demandimport in the mercurial package
# would disable demand loading for any modules in mercurial.
from __future__ import absolute_import
Jun Wu
demandimport: move HGDEMANDIMPORT test to __init__.py...
r33861 import os
Siddharth Agarwal
demandimport: move ignore list to __init__.py...
r32422 import sys
Siddharth Agarwal
demandimport: add python 3 implementation...
r32423 if sys.version_info[0] >= 3:
from . import demandimportpy3 as demandimport
else:
from . import demandimportpy2 as demandimport
Siddharth Agarwal
demandimport: move to separate package...
r32420
Siddharth Agarwal
demandimport: move ignore list to __init__.py...
r32422 # Extensions can add to this list if necessary.
ignore = [
'__future__',
'_hashlib',
# ImportError during pkg_resources/__init__.py:fixup_namespace_package
'_imp',
'_xmlplus',
'fcntl',
'nt', # pathlib2 tests the existence of built-in 'nt' module
'win32com.gen_py',
'win32com.shell', # 'appdirs' tries to import win32com.shell
'_winreg', # 2.7 mimetypes needs immediate ImportError
'pythoncom',
# imported by tarfile, not available under Windows
'pwd',
'grp',
# imported by profile, itself imported by hotshot.stats,
# not available under Windows
'resource',
# this trips up many extension authors
'gtk',
# setuptools' pkg_resources.py expects "from __main__ import x" to
# raise ImportError if x not defined
'__main__',
'_ssl', # conditional imports in the stdlib, issue1964
'_sre', # issue4920
'rfc822',
'mimetools',
'sqlalchemy.events', # has import-time side effects (issue5085)
# setuptools 8 expects this module to explode early when not on windows
'distutils.msvc9compiler',
'__builtin__',
'builtins',
'urwid.command_map', # for pudb
]
_pypy = '__pypy__' in sys.builtin_module_names
if _pypy:
ignore.extend([
# _ctypes.pointer is shadowed by "from ... import pointer" (PyPy 5)
'_ctypes.pointer',
])
demandimport.init(ignore)
Siddharth Agarwal
demandimport: move to separate package...
r32420 # Re-export.
isenabled = demandimport.isenabled
disable = demandimport.disable
deactivated = demandimport.deactivated
Jun Wu
demandimport: move HGDEMANDIMPORT test to __init__.py...
r33861
def enable():
Jun Wu
demandimport: disable if chg is being used...
r33862 # chg pre-imports modules so do not enable demandimport for it
if ('CHGINTERNALMARK' not in os.environ
and os.environ.get('HGDEMANDIMPORT') != 'disable'):
Jun Wu
demandimport: move HGDEMANDIMPORT test to __init__.py...
r33861 demandimport.enable()