Mercurial > hg
view relnotes/5.7 @ 46472:98e39f04d60e
upgrade: implement partial upgrade for upgrading persistent-nodemap
Upgrading repositories to use persistent nodemap should be fast and easy as it
requires only two things:
1) Updating the requirements
2) Writing a persistent-nodemap on disk
For both of the steps above, we don't need to edit existing revlogs.
This patch makes upgrade only do the above mentioned two steps if we are
only upgarding to use persistent-nodemap feature.
Since `nodemap.persist_nodemap()` assumes that there exists a nodemap file for
the given revlog if we are trying to call it, this patch adds `force` argument
to create a file if does not exist which is true in our upgrade case.
The test changes demonstrate that we no longer write nodemap files for manifest
after upgrade which I think is desirable.
Differential Revision: https://phab.mercurial-scm.org/D9936
author | Pulkit Goyal <7895pulkit@gmail.com> |
---|---|
date | Mon, 01 Feb 2021 00:02:00 +0530 |
parents | 1c66795862cf |
children | d67732a4b58a |
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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 strip`, from the strip extension, is now a core command, `hg debugstrip`. The extension remains for compatibility. * `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`.