Pierre-Yves David <pierre-yves.david@octobus.net> [Tue, 07 Mar 2023 03:42:40 +0100] rev 50291
undo-files: cleanup legacy files when applicable
The "journal" code is much more compact in 6.4, and so is the "undo" files as a
result. However the previous version were much noisier, so let us cleanup undo
files from older version too.
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 06 Mar 2023 22:16:43 +0100] rev 50290
undo-files: clean existing files up before writing new one
the in the initial design of journal/undo interaction, ages ago, new file always
overwrote previous files. This is no longer the case for a long while, so it is
time to properly clean things up before writing new ones.
Otherwise, inconsistent "undo" state might exist on disk, leading `hg rollback`
to misbehave (more that intended).