##// END OF EJS Templates
persistent-nodemap: properly ignore non-existent `.nd` data file...
persistent-nodemap: properly ignore non-existent `.nd` data file This code was meant to handle the case of a nodemap docket file pointing to a nodemap data file that doesn’t exist (anymore), but most likely caused an `UnboundLocalError` exception instead when `data` was used on the next line without being defined. This case is theoretically possible with a race condition between two hg processes, but is hard to reproduce or test: * Process A reads a docket file and finds a UID in it that points to a given data file name. * Process B decides that this same data file needs compacting. It writes a new one with a different UID, overwrites the docket file, then removes the old data file. * Only then process A tries to a open a file that doesn’t exist anymore. Differential Revision: https://phab.mercurial-scm.org/D9533

File last commit:

r37144:4bd73a95 default
r46705:8ff2d835 default
Show More
types.py
55 lines | 1.3 KiB | text/x-python | PythonLexer
class CBORTag(object):
"""
Represents a CBOR semantic tag.
:param int tag: tag number
:param value: encapsulated value (any object)
"""
__slots__ = 'tag', 'value'
def __init__(self, tag, value):
self.tag = tag
self.value = value
def __eq__(self, other):
if isinstance(other, CBORTag):
return self.tag == other.tag and self.value == other.value
return NotImplemented
def __repr__(self):
return 'CBORTag({self.tag}, {self.value!r})'.format(self=self)
class CBORSimpleValue(object):
"""
Represents a CBOR "simple value".
:param int value: the value (0-255)
"""
__slots__ = 'value'
def __init__(self, value):
if value < 0 or value > 255:
raise TypeError('simple value too big')
self.value = value
def __eq__(self, other):
if isinstance(other, CBORSimpleValue):
return self.value == other.value
elif isinstance(other, int):
return self.value == other
return NotImplemented
def __repr__(self):
return 'CBORSimpleValue({self.value})'.format(self=self)
class UndefinedType(object):
__slots__ = ()
#: Represents the "undefined" value.
undefined = UndefinedType()
break_marker = object()