With darcs v2.0.0, "darcs init" creates an old-style darcs-1-format repository.

Perhaps for darcs v2.0.1, it should create a hashed-format repository by default.

I think it's better to wait with such incompatible changes until darcs-1 is
pretty much extinct. Right now, I think, most darcs users are still darcs-1 and
they won't be happy when they start getting errors on other peoples'
repositories all the time.

Yeah, you are right.  I changed the Status of this ticket to "deferred".

Have a look at Darcs.Repository.createRepository.

There are some functions, namely, flagsToPristine and create_repo_format that
need to be updated accordingly.  It seems like the current functions assume that
having no options means we get an old-fashioned repository... so we need to
change this so that having the UseOldFashionedInventory flag triggers a darcs-1
repository and having no flags triggers a darcs2 repository.  Perhaps a cleaner
way to write things is to make this base case systematically refer to a case
with a flag in it:

foo :: [DarcsFlag] -> bar
foo opts | UseFormat2 `elem` opts = foo2
foo opts | UseOldFashioned `elem` opts = foo3
foo [] = foo [UseFormat2]

I'm attaching a patch for discussion.

David

Attachments

• patch

Resolved by David's patch.  This will be in darcs 2.1.0