Re: block-level incremental backup

On Wed, Sep 4, 2019 at 10:08 PM Michael Paquier <michael@paquier.xyz> wrote:
> > For generating a
> > file, you can always emit the newest and "best" tar format, but for
> > reading a file, you probably want to be prepared for older or cruftier
> > variants.  Maybe not -- I'm not super-familiar with the tar on-disk
> > format.  But I think there must be a reason why tar libraries exist,
> > and I don't want to write a new one.
>
> We need to be sure as well that the library chosen does not block
> access to a feature in all the various platforms we have.

Well, again, my preference is to just not make this particular feature
work natively with tar files.  Then I don't need to choose a library,
so the question is moot.

-- 
Robert Haas
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