view relnotes/5.2 @ 48951:cf99c4af1079

chgserver: remove Python 2 file descriptor logic

Follows up 0bb28b7736bc "chgserver: remove Python 2 support code."

On Python 2, we had to close newfp prior to restoring the original file
description since "delete newfp" would otherwise close the file descriptor
shared with the long-lived fp:

  in attachio():
    newfp = os.fdopen(fp.fileno(), mode, bufsize)
  in _restoreio():
    newfp.close()  # temporarily close newfp.fileno() (= fp.fileno())
    os.dup2(fd, fp.fileno())  # reopen fp.fileno() with original fd

On the other hand, we shouldn't call newfp.close() on Python 3 since
any function calls are proxied to the underlying file object by
procutil.LineBufferedWrapper.

== 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 ==