relnotes/next
author Joerg Sonnenberger <joerg@bec.de>
Wed, 10 Mar 2021 18:09:21 +0100
changeset 46779 49fd21f32695
parent 46776 471cd86c8eb4
child 46780 6266d19556ad
permissions -rw-r--r--
revlog: guarantee that p1 != null if a non-null parent exists This change does not affect the hashing (which already did this transformation), but can change the log output in the rare case where this behavior was observed in repositories. The change can simplify iteration code where regular changesets and merges are distinct branches. Differential Revision: https://phab.mercurial-scm.org/D10150
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== New Features ==
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 * `hg purge` is now a core command using `--confirm` by default.
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 * The `rev-branch-cache` is now updated incrementally whenever changesets
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   are added.
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 * The new options `experimental.bundlecompthreads` and
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   `experimental.bundlecompthreads.<engine>` can be used to instruct
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   the compression engines for bundle operations to use multiple threads
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   for compression. The default is single threaded operation. Currently
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   only supported for zstd.
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== New Experimental Features ==
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 * There's a new `diff.merge` config option to show the changes
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    relative to an automerge for merge changesets. This makes it
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    easier to detect and review manual changes performed in merge
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    changesets. It is supported by `hg diff --change`, `hg log -p`
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    `hg incoming -p`, and `hg outgoing -p` so far.
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== Bug Fixes ==
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== Backwards Compatibility Changes ==
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 * In normal repositories, the first parent of a changeset is not null,
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   unless both parents are null (like the first changeset). Some legacy
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   repositories violate this condition. The revlog code will now
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   silentely swap the parents if this condition is tested. This can
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   change the output of `hg log` when explicitly asking for first or
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   second parent.
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== Internal API Changes ==
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 * `changelog.branchinfo` is deprecated and will be removed after 5.8.
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   It is superseded by `changelogrevision.branchinfo`.
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 * Callbacks for revlog.addgroup and the changelog._nodeduplicatecallback hook
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   now get a revision number as argument instead of a node.
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 * revlog.addrevision returns the revision number instead of the node.