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view relnotes/5.2 @ 47349:7138c863d0a1
dirstate-v2: Skip readdir in status based on directory mtime
When calling `read_dir` during `status` and the directory is found to be
eligible for caching (see code comments), write the directory’s mtime to the
dirstate. The presence of a directory mtime in the dirstate is meaningful
and indicates eligibility.
When an eligible directory mtime is found in the dirstate and `stat()` shows
that the mtime has not changed, `status` can skip calling `read_dir` again
and instead rely on the names of child nodes in the dirstate tree.
The `tempfile` crate is used to create a temporary file in order to use its
modification time as "current time" with the same truncation as other files
and directories would have in their own modification time.
Differential Revision: https://phab.mercurial-scm.org/D10826
author | Simon Sapin <simon.sapin@octobus.net> |
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date | Fri, 28 May 2021 11:48:59 +0200 |
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 ==