annotate relnotes/5.2 @ 49233:520722523955

worker: implement _blockingreader.readinto() (issue6444)

The core logic for readinto() was already implemented in read(), so this is
mostly extracting that code into its own method.

Another fix for issue6444 was committed to the stable branch: 2fe4efaa59af.
That is a minimal fix that implements readinto() only on Python versions that
require readinto() (3.8.0 and 3.8.1), which is the right approach for the
stable branch. However, I think that this changeset has its value. It improves
performance in cases when pickle can use readinto(), it reduces code
duplication compared to the other patch, and by defining readinto() on all
Python versions, it makes behavior more consistent across all Python versions.
This changesets reverts the other change.

== 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 ==