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Better error message for permission denied when accessing device files on macOS

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Kovid Goyal 2021-11-17 16:24:59 +05:30
parent 21e76f7d73
commit 37c35a1ec4
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1 changed files with 21 additions and 8 deletions
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29
src/calibre/devices/usbms/driver.py
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@ -14,7 +14,7 @@ for a particular device.
import os, time, json, shutil
from itertools import cycle
from calibre.constants import numeric_version
from calibre.constants import numeric_version, ismacos
from calibre import prints, isbytestring, fsync
from calibre.constants import filesystem_encoding, DEBUG
from calibre.devices.usbms.cli import CLI
@ -147,17 +147,30 @@ class USBMS(CLI, Device):
def get_device_information(self, end_session=True):
self.report_progress(1.0, _('Get device information...'))
self.driveinfo = {}
def raise_os_error(e):
raise OSError(_('Failed to access files in the main memory of'
' your device. You should contact the device'
' manufacturer for support. Common fixes are:'
' try a different USB cable/USB port on your computer.'
' If you device has a "Reset to factory defaults" type'
' of setting somewhere, use it. Underlying error: %s')
% e) from e
if self._main_prefix is not None:
try:
self.driveinfo['main'] = self._update_driveinfo_file(self._main_prefix, 'main')
except PermissionError as e:
if ismacos:
raise PermissionError(_(
'Permission was denied by macOS trying to access files in the main memory of'
' your device. You will need to grant permission explicitly by looking under'
' System Preferences > Security and Privacy > Privacy > Files and Folders.'
' Underlying error: %s'
) % e) from e
raise_os_error(e)
except OSError as e:
raise OSError(_('Failed to access files in the main memory of'
' your device. You should contact the device'
' manufacturer for support. Common fixes are:'
' try a different USB cable/USB port on your computer.'
' If you device has a "Reset to factory defaults" type'
' of setting somewhere, use it. Underlying error: %s')
% e)
raise_os_error(e)
try:
if self._card_a_prefix is not None:
self.driveinfo['A'] = self._update_driveinfo_file(self._card_a_prefix, 'A')