rust-config: add config getters that don't fall back to defaults This is useful in cases where we access config items that are more... lenient with their types than a fresh new system would allow. For now there is only a single use of this, but we might get more later.

rust-config: add support for default config items Now that configitems.toml exists, we can read from it the default values for all core config items. We will add the devel-warning for use of undeclared config items in a later patch when we're done adding the missing entries for `rhg`.

configitems: declare items in a TOML file Mercurial ships with Rust code that also needs to read from the config. Having a way of presenting `configitems` to both Python and Rust is needed to prevent duplication, drift, and have the appropriate devel warnings. Abstracting away from Python means choosing a config format. No single format is perfect, and I have yet to come across a developer that doesn't hate all of them in some way. Since we have a strict no-dependencies policy for Mercurial, we either need to use whatever comes with Python, vendor a library, or implement a custom format ourselves. Python stdlib means using JSON, which doesn't support comments and isn't great for humans, or `configparser` which is an obscure, untyped format that nobody uses and doesn't have a commonplace Rust parser. Implementing a custom format is error-prone, tedious and subject to the same issues as picking an existing format. Vendoring opens us to the vast array of common config formats. The ones being picked for most modern software are YAML and TOML. YAML is older and common in the Python community, but TOML is much simpler and less error-prone. I would much rather be responsible for the <1000 lines of `tomli`, on top of TOML being the choice of the Rust community, with robust crates for reading it. The structure of `configitems.toml` is explained inline.

thirdparty: vendor tomli The next commit will introduce a .toml file to abstract configitems away from Python. Python 3.11 has a toml read-only library (`tomllib`), which gives us a way out of vendoring eventually. For now, we vendor the backport, specifically version 1.2.3 which is still compatible with Python 3.6.

configitems: add `documentation` field It may be useful to expose documentation information in the help in some form. This will be populated in a future changeset by using the current comments that are relevant for users.

configitems: use standard "dynamicdefault" approach in edge case This makes for fewer edge cases, which will help a future patch.

configitems: fix typo in devel warning about extension overrides

branching: merge stable into default

Added signature for changeset c083d9776cb2

Added tag 6.5.3 for changeset c083d9776cb2

relnotes: add 6.5.3

revlog: avoid opening and closing the file for each cloned revision The previous code was flushing files after each new revision, slowing things down. For exemple, with this change, the evolve repository can run `hg debugupgraderepo --run --optimize re-delta-parent` in about 3.4s instead of 4.5 seconds.

censor: accept censored revision during upgrade They can simply be passed by as censored.

censor: show that censored revision prevent repository upgrade This is not great.

stream-clone: fix a crash when a repo with an empty revlog is cloned

cleanup: typos, formatting

tests: backed out changeset 8037ddacad47 This issue with 3.11 was real, but it eventually got fixed after people started building exploit and filling CVE See https://github.com/python/cpython/issues/106242 And https://github.com/python/cpython/pull/106816

httppeer: fix static-http: scheme autodetection (issue6833) Since statichttprepo.make_peer() assumes path is a urlutil.path object (by accessing path.loc), we no longer can just provide a bytestring there. See also 5f71fff8dc74 and cfe8d88a453e.

revlog: make the rust test for node hex prefix resolution exercise the nodemap

revlog: fix a bug where NULL_NODE failed to be resolved to NULL_REV The problem is that nodemap already takes care about NULL_NODE resolution (in `validate_candidate` in `nodemap.rs`), so the special handling in `rev_from_node` is unnecessary and incorrect.

tests: reproduce the nullrev bug in an end-to-end test

tags: avoid expensive access to repo.changelog in a loop repo.changelog needs some cache invalidation when run on filtered repository. Accessing it in that loop can be expensive when there is many heads (e.g. mozilla try and it 25 000 heads). Note that the loop itself seems useless, but after this patch it no longer take about ⅛ of the time we spend computing cache for mozilla try. before : ! wall 0.350994 comb 0.350000 user 0.330000 sys 0.020000 (median of 28) after : ! wall 0.319520 comb 0.310000 user 0.290000 sys 0.020000 (median of 30)

blackbox: add a option to duplicate output to stderr too This is useful when debugging some performance operation.

perf: add a --update-last flag to perf::tags See inline documentation for details.

perf: add a `--clear-fnode-cache-rev` argument to perf::tags This will help us test this in situation closer to an update after a commit or a push.

perf: introduce more cache invalidation option in perf::tags This will help us to assert the performance of different versions in more diverse situations. We introduce helper function in the tags module in case invalidating such cache becomes different in the future.

hgweb: pass strings in WSGI environment correctly from wsgicgi According to PEP 3333, the strings in the WSGI environment must be translatable to bytes using the ISO-8859-1 codec.

Added signature for changeset 5a8b54201039

Added tag 6.5.2 for changeset 5a8b54201039

relnotes: add 6.5.2