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# Copyright: 2005 Gentoo Foundation
# Author(s): Brian Harring (ferringb@gentoo.org)
# License: GPL2
class CacheError(Exception): pass
class InitializationError(CacheError):
def __init__(self, class_name, error):
self.error, self.class_name = error, class_name
def __str__(self):
return "Creation of instance %s failed due to %s" % \
(self.class_name, str(self.error))
class CacheCorruption(CacheError):
def __init__(self, key, ex):
self.key, self.ex = key, ex
def __str__(self):
return "%s is corrupt: %s" % (self.key, str(self.ex))
class GeneralCacheCorruption(CacheError):
def __init__(self,ex): self.ex = ex
def __str__(self): return "corruption detected: %s" % str(self.ex)
class InvalidRestriction(CacheError):
def __init__(self, key, restriction, exception=None):
if exception == None: exception = ''
self.key, self.restriction, self.ex = key, restriction, ex
def __str__(self):
return "%s:%s is not valid: %s" % \
(self.key, self.restriction, str(self.ex))
class ReadOnlyRestriction(CacheError):
def __init__(self, info=''):
self.info = info
def __str__(self):
return "cache is non-modifiable"+str(self.info)
class StatCollision(CacheError):
"""
If the content of a cache entry changes and neither the file mtime nor
size changes, it will prevent rsync from detecting changes. Cache backends
may raise this exception from _setitem() if they detect this type of stat
collision. See bug #139134.
"""
def __init__(self, key, filename, mtime, size):
self.key = key
self.filename = filename
self.mtime = mtime
self.size = size
def __str__(self):
return "%s has stat collision with size %s and mtime %s" % \
(self.key, self.size, self.mtime)
def __repr__(self):
return "portage.cache.cache_errors.StatCollision(%s)" % \
(', '.join((repr(self.key), repr(self.filename),
repr(self.mtime), repr(self.size))),)
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