Boris Feld <boris.feld@octobus.net> [Sun, 24 Sep 2017 21:27:18 +0200] rev 34329
pull: use 'phase-heads' to retrieve phase information
A new bundle2 capability 'phases' has been added. If 'heads' is part of the
supported value for 'phases', the server supports reading and sending 'phase-
heads' bundle2 part.
Server is now able to process a 'phases' boolean parameter to 'getbundle'. If
'True', a 'phase-heads' bundle2 part will be included in the bundle with phase
information relevant to the whole pulled set. If this method is available the
phases listkey namespace will no longer be listed.
Beside the more efficient encoding of the data, this new method will greatly
improve the phase exchange efficiency for repositories with non-served
changesets (obsolete, secret) since we'll no longer send data about the
filtered heads.
Add a new 'devel.legacy.exchange' config item to allow fallback to the old
'listkey in bundle2' method.
Reminder: the pulled set is not just the changesets bundled by the pull. It
also contains changeset selected by the "pull specification" on the client
side (eg: everything for bare pull). One of the reason why the 'pulled set' is
important is to make sure we can move -common- nodes to public.
Boris Feld <boris.feld@octobus.net> [Wed, 20 Sep 2017 18:29:10 +0200] rev 34328
bundle2: only grab a transaction when 'phase-heads' affect the repository
The next patch will use the 'phase-heads' part to exchange phase data relevant to
the pulled set.
'handlephases' currently acquires a transaction even in case of no-op pull,
which would results in an empty transaction and messing with the existing
journal.
Pass the transaction fetcher to updatephases so it can fetch it if necessary.
Boris Feld <boris.feld@octobus.net> [Tue, 19 Sep 2017 22:23:41 +0200] rev 34327
phases: move the binary decoding function in the phases module
We move the decoding function near the encoding one in a place where they can
be reused in other place (current target, 'exchange.py').
Boris Feld <boris.feld@octobus.net> [Tue, 19 Sep 2017 22:01:31 +0200] rev 34326
phases: move binary encoding into a reusable function
We want to use binary phases for pushing and pulling. We extract the encoding
function out of the bundle2 module first.