Mercurial > hg
view relnotes/5.2 @ 44143:7f86426fdd2c
rust-node: binary Node ID and conversion utilities
The choice of type makes sure that a `Node` has the exact
wanted size. We'll use a different type for prefixes.
Added dependency: hexadecimal conversion relies on the
`hex` crate.
The fact that sooner or later Mercurial is going to need
to change its hash sizes has been taken strongly in
consideration:
- the hash length is a constant, but that is not directly
exposed to callers. Changing the value of that constant
is the only thing to do to change the hash length (even
in unit tests)
- the code could be adapted to support several sizes of hashes,
if that turned out to be useful. To that effect, only the
size of a given `Node` is exposed in the public API.
- callers not involved in initial computation, I/O and FFI
are able to operate without a priori assumptions on the hash
size. The traits `FromHex` and `ToHex` have not been directly
implemented, so that the doc-comments explaining these
restrictions would stay really visible in `cargo doc`
Differential Revision: https://phab.mercurial-scm.org/D7788
author | Georges Racinet <georges.racinet@octobus.net> |
---|---|
date | Wed, 22 Jan 2020 16:37:05 +0100 |
parents | a825ba8eb0a1 |
children |
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== New Features == * The amend extension supports the `--currentuser` argument. * The amend extension supports the `--close-branch` argument. * The amend extension supports the `--secret` argument. * The uncommit extension supports the `rewrite.update-timestamp` config option. == New Experimental Features == == Bug Fixes == == Backwards Compatibility Changes == * A shell that supports `$(command)`` syntax for command substitution is now required for running the test suite. The test runner normally uses `sh`, so if that is a shell that doesn't support `$(command)` syntax, you can override it by setting `$HGTEST_SHELL` or by passing it to `run-tests.py --shell <shell>`. * The (experimental) narrow extension's wire protocol changed. If you're using it, you'll need to make sure to upgrade server and client at the same time. == Internal API Changes ==