Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 11 Mar 2021 17:26:49 +0100] rev 46733
ui: pass a `ui` object to `paths.getpath`
I want to introduce more path's suboption and make it possible to use default
value for them. Processing theses sub-options might result in warnings. We
need a `ui` object to issue such warnings.
To make things simpler, we add an helper method on the `ui` object.
Differential Revision: https://phab.mercurial-scm.org/D10162
Raphaël Gomès <rgomes@octobus.net> [Mon, 15 Mar 2021 10:57:02 +0100] rev 46732
configitems: add TODOs blocking the move out of experimental for revlogv2
These are the todos so far, we probably will have more, but we might as well
list them while they're fresh in our minds.
Differential Revision: https://phab.mercurial-scm.org/D10216
Raphaël Gomès <rgomes@octobus.net> [Fri, 19 Feb 2021 11:24:50 +0100] rev 46731
sidedata-exchange: rewrite sidedata on-the-fly whenever possible
When a A exchanges with B, the difference of their supported sidedata categories
is made, and the responsibility is always with the client to generated it:
- If A pushes to B and B requires category `foo` that A does not have, A
will need to generate it when sending it to B.
- If A pulls from B and A needs category `foo`, it will generate `foo`
before the end of the transaction.
- Any category that is not required is removed. If peers are not compatible,
abort.
It is forbidden to rewrite sidedata for a rev that already has sidedata, since
that would introduce unreachable (garbage) data in the data file, something
we're not prepared for yet.
Differential Revision: https://phab.mercurial-scm.org/D10032
Raphaël Gomès <rgomes@octobus.net> [Mon, 15 Feb 2021 11:08:28 +0100] rev 46730
revlog-index: add `replace_sidedata_info` method
During a `pull` operation where the server does not provide sidedata, the client
that requires it should generate them on-the-fly. In the generic case, we need
to wait for the changelog + manifests + filelogs to be added, since we don't
know what the sidedata computers might need: this means rewriting the sidedata
of index entries from within the pull transaction (and no further back) right
after we've added them.
Both Python and C implementations only allow for rewriting the sidedata offset
and length for revs within the transaction where they were created.
Differential Revision: https://phab.mercurial-scm.org/D10031
Raphaël Gomès <rgomes@octobus.net> [Fri, 19 Feb 2021 11:04:17 +0100] rev 46729
revlogv2: temporarily forbid inline revlogs
See inline comments. I plan to fix the underlying issue before revlogv2 is
stabilized.
Differential Revision: https://phab.mercurial-scm.org/D10030
Raphaël Gomès <rgomes@octobus.net> [Fri, 19 Feb 2021 11:15:42 +0100] rev 46728
changegroupv4: add sidedata helpers
These helpers carry the information and computers needed to rewrite sidedata
when generating/applying patches. We will be making use of them soon.
Differential Revision: https://phab.mercurial-scm.org/D10029
Raphaël Gomès <rgomes@octobus.net> [Wed, 10 Mar 2021 19:33:18 +0100] rev 46727
revlog: add attribute on revlogs that specifies its kind
The sidedata logic needs to check whether the revlog it's working on is a
changelog, a manifest or a filelog.
Furthermore, future versions of the revlog format will most likely see a split
between the three types (i.e. they will store different information), so having
this will be useful for other future endeavors as well.
Differential Revision: https://phab.mercurial-scm.org/D10151
Raphaël Gomès <rgomes@octobus.net> [Fri, 19 Feb 2021 10:53:27 +0100] rev 46726
sidedata-exchange: add `wanted_sidedata` and `sidedata_computers` to repos
Each repo will advertise the sidedata categories it requires (categories being
unique and canonical), and have a set of "computers", functions to generate
sidedata from `(repo, revlog, rev, previous_sidedata)`, for a given category.
The set of computers can be a superset of the set of the wanted categories, but
not smaller: repos are expected to be coherent in their handling of sidedata.
Differential Revision: https://phab.mercurial-scm.org/D10028