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windows: add a method to convert Unix style command lines to Windows style...
windows: add a method to convert Unix style command lines to Windows style This started as a copy/paste of `os.path.expandvars()`, but limited to a given dictionary of variables, converting `foo = foo + bar` to `foo += bar`, and adding 'b' string prefixes. Then code was added to make sure that a value being substituted in wouldn't itself be expanded by cmd.exe. But that left inconsistent results between `$var1` and `%var1%` when its value was '%foo%'- since neither were touched, `$var1` wouldn't expand but `%var1%` would. So instead, this just converts the Unix style to Windows style (if the variable exists, because Windows will leave `%missing%` as-is), and lets cmd.exe do its thing. I then dropped the %% -> % conversion (because Windows doesn't do this), and added the ability to escape the '$' with '\'. The escape character is dropped, for consistency with shell handling. After everything seemed stable and working, running the whole test suite flagged a problem near the end of test-bookmarks.t:1069. The problem is cmd.exe won't pass empty variables to its child, so defined but empty variables are now skipped. I can't think of anything better, and it seems like a pre-existing violation of the documentation, which calls out that HG_OLDNODE is empty on bookmark creation. Future additions could potentially be replacing strong quotes with double quotes (cmd.exe doesn't know what to do with the former), escaping a double quote, and some tilde expansion via os.path.expanduser(). I've got some doubts about replacing the strong quotes in case sh.exe is run, but it seems like the right thing to do the vast majority of the time. The original form of this was discussed about a year ago[1]. [1] https://www.mercurial-scm.org/pipermail/mercurial-devel/2017-July/100735.html
Gregory Szorc - - Load All Authors

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interfaces.py
105 lines | 4.2 KiB | text/x-python | PythonLexer
/ mercurial / thirdparty / zope / interface / common / interfaces.py
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##############################################################################
#
# Copyright (c) 2003 Zope Foundation and Contributors.
# All Rights Reserved.
#
# This software is subject to the provisions of the Zope Public License,
# Version 2.1 (ZPL). A copy of the ZPL should accompany this distribution.
# THIS SOFTWARE IS PROVIDED "AS IS" AND ANY AND ALL EXPRESS OR IMPLIED
# WARRANTIES ARE DISCLAIMED, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
# WARRANTIES OF TITLE, MERCHANTABILITY, AGAINST INFRINGEMENT, AND FITNESS
# FOR A PARTICULAR PURPOSE.
#
##############################################################################
"""Interfaces for standard python exceptions
"""
from __future__ import absolute_import
from .. import Interface
from .. import classImplements
class IException(Interface): pass
class IStandardError(IException): pass
class IWarning(IException): pass
class ISyntaxError(IStandardError): pass
class ILookupError(IStandardError): pass
class IValueError(IStandardError): pass
class IRuntimeError(IStandardError): pass
class IArithmeticError(IStandardError): pass
class IAssertionError(IStandardError): pass
class IAttributeError(IStandardError): pass
class IDeprecationWarning(IWarning): pass
class IEOFError(IStandardError): pass
class IEnvironmentError(IStandardError): pass
class IFloatingPointError(IArithmeticError): pass
class IIOError(IEnvironmentError): pass
class IImportError(IStandardError): pass
class IIndentationError(ISyntaxError): pass
class IIndexError(ILookupError): pass
class IKeyError(ILookupError): pass
class IKeyboardInterrupt(IStandardError): pass
class IMemoryError(IStandardError): pass
class INameError(IStandardError): pass
class INotImplementedError(IRuntimeError): pass
class IOSError(IEnvironmentError): pass
class IOverflowError(IArithmeticError): pass
class IOverflowWarning(IWarning): pass
class IReferenceError(IStandardError): pass
class IRuntimeWarning(IWarning): pass
class IStopIteration(IException): pass
class ISyntaxWarning(IWarning): pass
class ISystemError(IStandardError): pass
class ISystemExit(IException): pass
class ITabError(IIndentationError): pass
class ITypeError(IStandardError): pass
class IUnboundLocalError(INameError): pass
class IUnicodeError(IValueError): pass
class IUserWarning(IWarning): pass
class IZeroDivisionError(IArithmeticError): pass
classImplements(ArithmeticError, IArithmeticError)
classImplements(AssertionError, IAssertionError)
classImplements(AttributeError, IAttributeError)
classImplements(DeprecationWarning, IDeprecationWarning)
classImplements(EnvironmentError, IEnvironmentError)
classImplements(EOFError, IEOFError)
classImplements(Exception, IException)
classImplements(FloatingPointError, IFloatingPointError)
classImplements(ImportError, IImportError)
classImplements(IndentationError, IIndentationError)
classImplements(IndexError, IIndexError)
classImplements(IOError, IIOError)
classImplements(KeyboardInterrupt, IKeyboardInterrupt)
classImplements(KeyError, IKeyError)
classImplements(LookupError, ILookupError)
classImplements(MemoryError, IMemoryError)
classImplements(NameError, INameError)
classImplements(NotImplementedError, INotImplementedError)
classImplements(OSError, IOSError)
classImplements(OverflowError, IOverflowError)
try:
classImplements(OverflowWarning, IOverflowWarning)
except NameError: #pragma NO COVER
pass # OverflowWarning was removed in Python 2.5
classImplements(ReferenceError, IReferenceError)
classImplements(RuntimeError, IRuntimeError)
classImplements(RuntimeWarning, IRuntimeWarning)
try:
classImplements(StandardError, IStandardError)
except NameError: #pragma NO COVER
pass # StandardError does not exist in Python 3
classImplements(StopIteration, IStopIteration)
classImplements(SyntaxError, ISyntaxError)
classImplements(SyntaxWarning, ISyntaxWarning)
classImplements(SystemError, ISystemError)
classImplements(SystemExit, ISystemExit)
classImplements(TabError, ITabError)
classImplements(TypeError, ITypeError)
classImplements(UnboundLocalError, IUnboundLocalError)
classImplements(UnicodeError, IUnicodeError)
classImplements(UserWarning, IUserWarning)
classImplements(ValueError, IValueError)
classImplements(Warning, IWarning)
classImplements(ZeroDivisionError, IZeroDivisionError)