Add email address to backup.tar file name

Expected behavior

If I have multiple backups for multiple email accounts, I can tell from the file name which email account it belongs to and import the correct one.

Actual behavior

They are all called delta-chat-$date-$counter.tar, so I have to guess in which order I exported them to find out which backup I want to import.


in 1.42, the backup names will include the email address
in the form delta-chat-backup-DATE-COUNTER-ADDR.tar,
so eg. [1]

moreover, the 1.42 android version will have an option to export all accounts together [2]