Mercurial > hg
changeset 48851:d739cd69bb6a
revlog: return 0 for the fast_rank of nullrev
By convention, the rank of the null revision is 0. This particular revision is
never "physically" stored in the changelog, so it is a special case.
For consistency, the value `None` is still being returned for revlogs which do
not store the fast_rank property for any revision.
Differential Revision: https://phab.mercurial-scm.org/D12208
| author | pacien <pacien.trangirard@pacien.net> |
|---|---|
| date | Mon, 21 Feb 2022 15:53:03 +0100 |
| parents | 656196c1d442 |
| children | e633e660158f |
| files | mercurial/revlog.py |
| diffstat | 1 files changed, 3 insertions(+), 1 deletions(-) [+] |
line wrap: on
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--- a/mercurial/revlog.py Wed Mar 02 18:42:00 2022 -0800 +++ b/mercurial/revlog.py Mon Feb 21 15:53:03 2022 +0100 @@ -869,8 +869,10 @@ the revlog which do not persist the rank. """ rank = self.index[rev][ENTRY_RANK] - if rank == RANK_UNKNOWN: + if self._format_version != CHANGELOGV2 or rank == RANK_UNKNOWN: return None + if rev == nullrev: + return 0 # convention return rank def chainbase(self, rev):