"Discard changes" in "Save before closing" should delete "newer" backups

As user, I work on JabRef. Then, I add some things. I maybe want to cancel my changes. Example:

Then, at the start of JabRef, JabRef should NOT prompt me to restore these changes.

Four options:

• Option 1: Delete newer backup files
• Option 2: Rename backup files to files with certain keywords (and delete them after some time)
• Option 3: Make backups appearing “older” (we need to fake time stamps)
• Option 4: Create discarded file to mark that the user discarded changes. On start of JabRef, JabRef removes that file and backup takes normally place. Example filename: 269b5589--test.bib--discarded.bak. When JabRef starts freshly, it creates new backups in the backup manner. After a normal save and an additional restart, JabRef MUST NOT assume that the last quit was a discard.

We opt for Option 4.

[mmohanb1]

Hi Koppor, I would like to contribute to this project and would like to work on this issue. Could you please assign this to me. Thanks.

[mmohanb1]

I was able to work on this issue and functionality seems to be working fine as expected but I need to test more using the testing documentation on jabref.