Incremental image backup

[robkam]

It would speed up dumping images/files if dumpgenerator had an option to check filename and size against previously dumped images/files and skip those already fetched.

[yzqzss]

This feature is in my roadmap.

saveweb#4 (comment) (Chinese)

[robkam]

Great!

[elsiehupp]

Hi @yzqzss—I just added you as a collaborator on this repository, in case you'd like to do more of your planning directly in here. You can see this new post regarding what being a collaborator lets you do.