Mercurial 6.8 (2024-07-08)

Mercurial 6.8 (2024-07-08)#

Mercurial 6.8.2#

This is the last version that supports Python 3.6 and 3.7.

  • Compatibility for Python 3.12 and 3.13

  • evolution: stop wrongly flagging unrelated part of a split as divergent

  • histedit: create state and acquire locks earlier

  • copytracing: fix a bug in an edge case in metadata.compute_all_files_changes

  • rhg: ignore readonly FS error when saving dirstate

  • merge: sort filemap only if requested by the caller

  • windows: implement util.cachestat to fix numerous dirstate problems

  • subrepo: propagate non-default path on outgoing

  • import: fix erroneous comparison of str with bytes

  • largefiles: fix check that ensures that –all-largefiles is only used locally

  • profiling: improve 3.12 error message for calling lsprof twice

  • profiling: use “stat” profiler to profile individual request

  • module-policy: ignore empty module policy

  • relnotes: skip the test if the source repository is not readable

  • wireprototypes: fix exception handling code with a bad pytype suppression

  • Many more type fixes and improvements

  • Improvements to the test suite

Mercurial 6.8.1#

  • Python 3.12: fix an issue between threading and demandimport

  • rhg: expand user and environment variable in paths to ignore in config and includes

  • win32mbcs extension: fix an encoding issue

Mercurial 6.8#

As usual, a lot of patches don’t make it to this list.

New Features or performance improvements#

  • Phases have been reworked to improve their general performance

    • revset: stop serializing node when using “%ln”

    • phases: convert remote phase root to node while reading them

    • phases: use revision number in new_heads

    • phases: use revision number in analyze_remote_phases

    • phases: stop using repo.set in remotephasessummary

    • phases: move RemotePhasesSummary to revision number

    • phases: use revision number in _pushdiscoveryphase

    • phases: introduce a performant efficient way to access revision in a set

    • phases: rework the logic of _pushdiscoveryphase to bound complexity

  • The Rust working copy code is being used by more places now:

    • matchers: support patternmatcher in rust

    • dirstate: remove the python-side whitelist of allowed matchers

  • stream-clone: disable gc for _entries_walk duration

  • stream-clone: disable gc for the initial section for the v3 format

  • postincoming: avoid computing branchhead if no report will be posted

  • stream-clone: disable gc for the entry listing section for the v2 format

  • perf: allow profiling of more than one run

  • perf: run the gc before each run

  • perf: start recording total time after warming

  • perf: clear vfs audit_cache before each run

  • outgoing: rework the handling of the missingroots case to be faster

  • outgoing: add a simple fastpath when there is no common

  • tags-cache: skip the filternode step if we are not going to use it

  • tags-cache: directly operate on rev-num warming hgtagsfnodescache

  • tags-cache: directly perform a monimal walk for hgtagsfnodescache warming

New Experimental Features#

  • Introduce a new experimental branch cache “v3”:

    • branchcache: add more test for the logic around obsolescence and branch heads

    • branchcache: skip entries that are topological heads in the on disk file

    • branchcache: add a “pure topological head” fast path

    • branchcache: allow to detect “pure topological case” for branchmap

Bug Fixes#

  • rust: use cpython 0.7.2 crate to add support for Python 3.12

  • perf-stream-locked-section: actually use v1 generation when requested

  • perf-stream-locked-section: fix the call to the v3 generator

  • perf-stream-locked-section: advertise the right version key in the help

  • stream: in v3, skip the “size” fast path if the entries have some unknown size

  • stream-clone: stop getting the file size of all file in v3

  • streamclone: stop listing files for entries that have no volatile files

  • perf-stream-consume: use the source repository config when applying

  • bundle: do no check the changegroup version if no changegroup is included

  • perf: create the temporary target next to the source in stream-consume

  • bundlespec: fix the “streamv2” and “streamv3-exp” variant

  • push: rework the computation of fallbackheads to be correct

  • profiler: flush after writing the profiler output

  • base-revsets: use an author that actually exercises a lot of changesets

  • hgrc: search XDG_CONFIG_HOME on mac

  • clonebundles: add missing newline to legacy response

  • narrow: add a test for linkrev computation done during widen

  • Multiple fixes to guard against mmap issues

  • portability: fix build on Solaris-derived systemd

Backwards Compatibility Changes#

Internal API Changes#

Miscellaneous#

  • obsolete: quote the feature name