Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 03 May 2021 23:59:15 +0200] rev 47254
revlog: use `rev` instead of `i` in replace_sidedata_info
This is clearer.
Differential Revision: https://phab.mercurial-scm.org/D10640
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 03 May 2021 12:35:35 +0200] rev 47253
revlogv2: also keep track for the size of the "data" file
This is useful to make sure we always start writing at the right location,
without effort.
Differential Revision: https://phab.mercurial-scm.org/D10632
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 03 May 2021 12:35:25 +0200] rev 47252
revlogv2: track pending write in the docket and expose it to hooks
The docket is now able to write pending data. We could have used a distinct
intermediate files, however keeping everything in the same file will make it
simpler to keep track of the various involved files if necessary.
However it might prove more complicated for streaming clone. This will be dealt
with later.
Note that we lifted the stderr redirection in the test since we no longer suffer
from "unkown working directory parent" message.
Differential Revision: https://phab.mercurial-scm.org/D10631
Pierre-Yves David <pierre-yves.david@octobus.net> [Mon, 03 May 2021 12:35:14 +0200] rev 47251
revlog: move the `trypending` logic from the `changelog` to the `revlog`
We move the -reading- logic for the pending's '.a' suffixed index within the
revlog class. This is motivated by the fact the logic could be simpler and
cleaner if directly handled by the revlog docket. Before we can do so, we need
to teach the revlog code about reading "pending" changes. To be honest, we
already needed some special casing of the `.a` postfix, so this does not adds
much complexity.
The logic around -writing- the special '00changelog.i.a' remains in the
`changelog` class. Note that the revlog-v2 logic no longer use this logic.
The only remaining user of the `postfix` argument is the `censor` logic. We
could probably also make the revlog full aware of it (most of the code is
already implemented in revlog anyway) and get rid of the `postfix` argument and
logic. However this is an adventure for another time.
Since we have more information, we add more, paranoid, Programming error in case
we detect such "pending reader" trying to do a read (which does not happens
anyways).
Differential Revision: https://phab.mercurial-scm.org/D10630