Mercurial > hg
view relnotes/5.7 @ 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> |
---|---|
date | Fri, 28 May 2021 11:48:59 +0200 |
parents | d67732a4b58a |
children |
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== New Features == * There is a new config section for templates used by hg commands. It is called `[command-templates]`. Some existing config options have been deprecated in favor of config options in the new section. These are: `ui.logtemplate` to `command-templates.log`, `ui.graphnodetemplate` to `command-templates.graphnode`, `ui.mergemarkertemplate` to `command-templates.mergemarker`, `ui.pre-merge-tool-output-template` to `command-templates.pre-merge-tool-output`. * There is a new set of config options for the template used for the one-line commit summary displayed by various commands, such as `hg rebase`. The main one is `command-templates.oneline-summary`. That can be overridden per command with `command-templates.oneline-summary.<command>`, where `<command>` can be e.g. `rebase`. As part of this effort, the default format from `hg rebase` was reorganized a bit. * `hg purge` is now a core command using `--confirm` by default. * `hg diff` and `hg extdiff` now support `--from <rev>` and `--to <rev>` arguments as clearer alternatives to `-r <revs>`. `-r <revs>` has been deprecated. * The memory footprint per changeset during pull/unbundle operations has been further reduced. * There is a new internal merge tool called `internal:mergediff` (can be set as the value for the `merge` config in the `[ui]` section). It resolves merges the same was as `internal:merge` and `internal:merge3`, but it shows conflicts differently. Instead of showing 2 or 3 snapshots of the conflicting pieces of code, it shows one snapshot and a diff. This may be useful when at least one side of the conflict is similar to the base. The new marker style is also supported by "premerge" as `merge-tools.<tool>.premerge=keep-mergediff`. * External hooks are now called with `HGPLAIN=1` preset. This has the side effect of ignoring aliases, templates, revsetaliases, and a few other config options in any `hg` command spawned by the hook. The previous behavior can be restored by setting HGPLAINEXCEPT appropriately in the parent process. See `hg help environment` for the list of items, and how to set it. * The `branchmap` cache is updated more intelligently and can be significantly faster for repositories with many branches and changesets. * The `rev-branch-cache` is now updated incrementally whenever changesets are added. == New Experimental Features == * `experimental.single-head-per-branch:public-changes-only` can be used restrict the single head check to public revision. This is useful for overlay repository that have both a publishing and non-publishing view of the same storage. == Bug Fixes == == Backwards Compatibility Changes == * `--force-lock` and `--force-wlock` options on `hg debuglock` command are renamed to `--force-free-lock` and `--force-free-wlock` respectively. == Internal API Changes == * `changelog.branchinfo` is deprecated and will be removed after 5.8. It is superseded by `changelogrevision.branchinfo`.