D7322: index: add a `has_node` method (API)

[indygreg (Gregory Szorc)]

This revision now requires changes to proceed.
indygreg added inline comments.
indygreg requested changes to this revision.

INLINE COMMENTS

> revlog.c:2071
> +	int ret = index_contains(self, args);
> +	return PyBool_FromLong((long)ret);
> +}

`index_contains()` can return `-1` in many cases (including invalid input), which will cast to `True`. So this implementation needs improved.

REPOSITORY
  rHG Mercurial

CHANGES SINCE LAST ACTION
  https://phab.mercurial-scm.org/D7322/new/

REVISION DETAIL
  https://phab.mercurial-scm.org/D7322

To: marmoute, indygreg, #hg-reviewers
Cc: mercurial-devel