D612: directaccess: add a hiddenlevel argument to registrar.command

[durham (Durham Goode)]

durham added inline comments.

INLINE COMMENTS

> registrar.py:142
> +            (recoverable write command)
> +        2: Can access the hidden commits without any warnings (read command)
>      """

I think an enum would be better here (UNRECOVERABLE_WRITE, RECOVERABLE_WRITE, READ_ONLY).  Especially because I think people generally copy and paste the registrar decorators from other functions, and if we're just specifying numbers they are more likely to just reuse whatever value they copied.

REPOSITORY
  rHG Mercurial

REVISION DETAIL
  https://phab.mercurial-scm.org/D612

To: pulkit, #hg-reviewers
Cc: durham, mercurial-devel