Pierre-Yves David <pierre-yves.david@octobus.net> [Wed, 13 Jan 2021 23:07:41 +0100] rev 46310
persistent-nodemap: add a "warn" option to the slow-path config
And make it the default until we get an abort option.
Differential Revision: https://phab.mercurial-scm.org/D9761
Pierre-Yves David <pierre-yves.david@octobus.net> [Wed, 13 Jan 2021 18:33:48 +0100] rev 46309
persistent-node: check the value of the slow-path config
We should probably provide some standard for this in config item, but this is a
quest for another adventure.
Differential Revision: https://phab.mercurial-scm.org/D9760
Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 14 Jan 2021 01:25:06 +0100] rev 46308
persistent-nodemap: add a revlog.storage.persistent-nodemap.slow-path option
As discussed during the sprint, we want to prevent user to get an unexpected
performance regression when accessing a repository using "persistent-nodemap"
without the associated Rust extension.
We start by adding a config declaration and some documentation.
Since "allow" is the current behavior, we don't need to add any code. The option
possible value will come later.
Note that we already have a `storage.revlog.nodemap.mode` option, but that
option is a bit different. It does some warning and checking at revlog
instantiation time. While we want something done at requirements checking time.
Since we plan for new names and new config value names, we introduce a new
option and will drop the old one later.
Differential Revision: https://phab.mercurial-scm.org/D9758
Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 14 Jan 2021 01:12:42 +0100] rev 46307
persistent-nodemap: document storage.revlog.persistent-nodemap.mmap=no
The feature is gaining public facing document, its options too.
Differential Revision: https://phab.mercurial-scm.org/D9757
Pierre-Yves David <pierre-yves.david@octobus.net> [Wed, 13 Jan 2021 23:51:12 +0100] rev 46306
persistent-nodemap: rename the storage.revlog.nodemap.mmap option
Since the feature is publicly known as "persistent-nodemap" this seems better to
reference it as "persistent-nodemap" in related config too. So we rename the
option to `storage.revlog.persistent-nodemap.mmap`.
Differential Revision: https://phab.mercurial-scm.org/D9756
Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 14 Jan 2021 00:56:27 +0100] rev 46305
persistent-nodemap: document the feature in `hg help config.format`
This is necessary before we advertise the feature more.
Differential Revision: https://phab.mercurial-scm.org/D9755
Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 14 Jan 2021 00:37:36 +0100] rev 46304
persistent-nodemap: write down the sprint conclusion
This write down the plan for turning feature that are only fast when the rust
extension exists. Future changesets will implement it.
Differential Revision: https://phab.mercurial-scm.org/D9754
Pierre-Yves David <pierre-yves.david@octobus.net> [Thu, 14 Jan 2021 00:33:40 +0100] rev 46303
persistent-nodemap: document the `devel.persistent-nodemap` option
What it does is not obvious.
Differential Revision: https://phab.mercurial-scm.org/D9753