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from errno import ENOENT
class InvalidArchiveError(Exception):
"""Raised when libarchive can't open a file"""
def __init__(self, fn, msg, *args, **kw):
msg = (
"Error with archive %s. You probably need to delete and re-download "
"or re-create this file. Message was:\n\n%s" % (fn, msg)
)
self.errno = ENOENT
super().__init__(msg)
class ArchiveCreationError(Exception):
"""Raised when an archive fails during creation"""
pass
class CaseInsensitiveFileSystemError(InvalidArchiveError):
def __init__(self, package_location, extract_location, **kwargs):
message = """
Cannot extract package to a case-insensitive file system. Your install
destination does not differentiate between upper and lowercase
characters, and this breaks things. Try installing to a location that
is case-sensitive. Windows drives are usually the culprit here - can
you install to a native Unix drive, or turn on case sensitivity for
this (Windows) location?
package location: %(package_location)s
extract location: %(extract_location)s
"""
self.package_location = package_location
self.extract_location = extract_location
super().__init__(package_location, message, **kwargs)
class ConversionError(Exception):
def __init__(self, missing_files, mismatching_sizes, *args, **kw):
self.missing_files = missing_files
self.mismatching_sizes = mismatching_sizes
errors = ""
if self.missing_files:
errors = "Missing files in converted package: %s\n" % self.missing_files
errors = (
errors
+ "Mismatching sizes (corruption) in converted package: %s" % self.mismatching_sizes
)
super().__init__(errors, *args, **kw)
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