avoid detecting permissions to be invalid on linux NTFS file system

[mgallien]

Close #7613

[nextcloud-desktop-bot]

AppImage file: nextcloud-PR-7745-c67aa8dde2ed198018cf3d41e91f9739fc2cf222-x86_64.AppImage

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[sonarqubecloud]

Quality Gate failed

Failed conditions
6 Security Hotspots
87 New Code Smells (required ≤ 0)
E Reliability Rating on New Code (required ≥ A)
2 New Bugs (required ≤ 0)
E Maintainability Rating on New Code (required ≥ A)

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[mbiebl]

I'm getting

2025-01-10 15:44:55:888 [ info nextcloud.sync.engine /drone/src/src/libsync/syncengine.cpp:645 ]:↦      File system type for current sync folder: "fuseblk"

michael@mars:~$ findmnt /mnt/data 
TARGET    SOURCE          FSTYPE  OPTIONS
/mnt/data /dev/nvme0n1p11 fuseblk rw,relatime,user_id=0,group_id=0,allow_other,blksize=4096
michael@mars:~$ grep data /etc/fstab 
LABEL=Data      /mnt/data       ntfs-3g auto            0       0

[luk-brue]

I built this branch from source on Linux Mint 21.3 Cinnamon and tested it with some folders on NTFS partitions (different partition than the OS). It works sometimes, which was great! But then it stops working and does not sync new files. Either it is stuck in Offline or it is stuck in "preparing sync..." for hours and nothing happens, even though new files are in the folder. Sometimes it also says "checking folder for new files..." The only solution to make sync work again on NTFS partitions is to remove the accounts and re-add them, then it works sometimes. However, syncing a folder on the same partition as the OS, normal ext4 filesystem, is working fine.

Also weird, When I add an account, I have to authenticate once when I add it and once more when I reboot the machine for the first time afterwards.
I don't know if this is on my side (Qt communicating with keyring) or the client side.

Built with Qt 6.8.2.
I hope this little experience review will help in the developing process, you are doing an awesome job! If you have more questions, I can try to answer them.

[nilsding]

Also weird, When I add an account, I have to authenticate once when I add it and once more when I reboot the machine for the first time afterwards.

this should be fixed with #7768 which was merged after this PR was created (and this branch is currently out-of-date). Should be fine on latest master...