Switch off .swp-files and backup files only when editing a certain file

Hi,

I want to swicth off vim (good!) behaviour of creating a backup file
(*~) and a swap file (*.swp) in way, that they not only will created
and deleted afterwards, but the should not created in first place at
all.
....and this should only happen, when a cerain file (path+filename as
identification) will be edited.

Background:
The certain file is the configuration file of a small embedded device,
which I can mount like an usbstick.
If I will forget to delete those files afterwards, I will screw up
this little thing.

How can I do this?

Thank you very much for any help!
Best regards,
mcc



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