App remains stuck in "Preparing..." for hours

[Leo Wandersleb]

After changing the backup target location to a local network drive (sftp), when starting a backup via "windows-key -> "backup" -> enter -> backup now", the app gets stuck at the "Preparing..." stage for at least two hours during which network performance was terrible.

When starting the app from the console, I get the error found in attached log file

additional info:

```
$ lsb_release -d
Description: Debian GNU/Linux 11 (bullseye)
$ deja-dup --version
deja-dup 42.7
$ dconf dump /org/gnome/deja-dup/
[/]
backend='remote'
delete-after=182
exclude-list=['/home/leo/VirtualBox VMs', '/home/leo/.android', '/home/leo/.local/share/Steam', '/home/leo/.gradle', '/home/leo/.cache', '/home/leo/.bitcoin/blocks', '/home/leo/.bitcoin/chainstate', '/home/leo/.AndroidStudio3.5', '/media/leo/unencrypted_data/Downloads/android-sdk-linux', '/home/leo/.local/share/containers/storage']
include-list=['/home/leo', '/media/leo/unencrypted_data/Downloads', '/media/leo/unencrypted_data/Documents']
last-backup='2023-04-13T13:27:45.822943Z'
last-restore='2017-05-25T17:15:14.717524Z'
last-run='2023-04-18T03:09:48.787598Z'
nag-check='2023-03-14T20:03:18.413939Z'
periodic=true
periodic-period=7
prompt-check='2016-12-28T21:45:34.515641Z'

[drive]
folder='backups/Pavilion'
icon='. GEmblemedIcon .%20GThemedIcon%20drive-harddisk-usb%20drive-harddisk%20drive%20drive-harddisk-usb-symbolic%20drive-harddisk-symbolic%20drive-symbolic .%20GEmblem%20changes-allow%201'
name='backup8tb'
uuid='4dffc196-9926-43d9-a7c8-38898681f402'

[file]
icon='. GEmblemedIcon .%20GThemedIcon%20drive-harddisk-usb%20drive-harddisk%20drive .%20GEmblem%20changes-allow%201'
migrated=true
name='WD Elements 10B8: 2,0 TB Volume'
path='file:///media/leo/edcb37f6-df83-4634-a709-6c7dc9ab6287/backup'
relpath=b'backup'
short-name='2,0 TB Volume'
type='volume'
uuid='20d36200-3bea-4b88-ab94-c25350520b88'

[gcs]
folder='codex'

[gdrive]
folder='/deja-dup/codex'

[goa]
folder='codex'

[google]
folder='codex'

[local]
folder='sftp://192.168.0.18/mnt/bigDrive/backups/Pavilion'

[openstack]
container='codex'

[rackspace]
container='codex'

[remote]
folder='/mnt/backup/backups/Pavilion'
uri='sftp://leo:password@192.168.0.22'

[s3]
folder='codex'
```

I have no idea what the "192.168.0.18" line is doing there. Other lines also look like stale config. The 8TB drive moved to remote IP ...22 and the 2TB drive? I don't have it configured.

"password" is obviously not my password.

[Michael Terry (mterry)]

Hello! Thank you for your report. This looks like the relevant bit from the crash log:

DUPLICITY: ERROR 30 FileNotFoundError
DUPLICITY: . Traceback (innermost last):
DUPLICITY: . File "/usr/bin/duplicity", line 122, in <module>
DUPLICITY: . with_tempdir(main)
DUPLICITY: . File "/usr/bin/duplicity", line 108, in with_tempdir
DUPLICITY: . fn()
DUPLICITY: . File "/usr/lib/python3/dist-packages/duplicity/dup_main.py", line 1522, in main
DUPLICITY: . action = commandline.ProcessCommandLine(sys.argv[1:])
DUPLICITY: . File "/usr/lib/python3/dist-packages/duplicity/commandline.py", line 1187, in ProcessCommandLine
DUPLICITY: . config.backend = backend.get_backend(args[0])
DUPLICITY: . File "/usr/lib/python3/dist-packages/duplicity/backend.py", line 223, in get_backend
DUPLICITY: . obj = get_backend_object(url_string)
DUPLICITY: . File "/usr/lib/python3/dist-packages/duplicity/backend.py", line 209, in get_backend_object
DUPLICITY: . return factory(pu)
DUPLICITY: . File "/usr/lib/python3/dist-packages/duplicity/backends/giobackend.py", line 53, in __init__
DUPLICITY: . from gi.repository import Gio # pylint: disable=import-error
DUPLICITY: . File "/usr/lib/python3/dist-packages/gi/__init__.py", line 23, in <module>
DUPLICITY: . __path__ = extend_path(__path__, __name__)
DUPLICITY: . File "/usr/lib/python3.9/pkgutil.py", line 561, in extend_path
DUPLICITY: . finder = get_importer(dir)
DUPLICITY: . File "/usr/lib/python3.9/pkgutil.py", line 420, in get_importer
DUPLICITY: . importer = path_hook(path_item)
DUPLICITY: . File "<frozen importlib._bootstrap_external>", line 1529, in path_hook_for_FileFinder
DUPLICITY: . File "<frozen importlib._bootstrap_external>", line 107, in _path_isdir
DUPLICITY: . FileNotFoundError: [Errno 2] No such file or directory

That looks like a problem with importing Gio. If you run the following in a terminal, do you get a similar error?

python3 -c "from gi.repository import Gio"

(the fact that this error seems to have stalled Deja Dup is another issue... but let's work on this for now)