rust-revlog: don't try to open the data file if the index is empty
This will cover the case where the data file is not present.
= Mercurial 6.3.3 =
* tests: filter out PEP 657 error locations in tracebacks (issue6780)
* tests: optional PEP 657 error location in test-extension.t (issue6781)
* tests: optional PEP 657 error location in test-lfs-serve-access.t (issue6782)
* histedit: byteify the help for the multifold action
* sparse: fix a py2 based usage of `map()`
* convert: stop passing str to the dateutil API in darcs
* convert: turn the last str regex into bytes in cvs.py (issue6789)
* convert: change socket mode from b'r+' to 'rwb' in cvs.py (issue6789)
* convert: replace repr() by pycompat.byterepr() in cvsps.py (issue6789)
* tests: os module is frozen in Python 3.11 (issue6786)
* hgweb: unbyteify the 100-continue check
* resourceutil: start using importlib.resources.files() when possible
* revset: the `random` sort should not depend on sys.maxsize (issue6770)
* tests: make sure pygments can detect python script without extension
* convert: brz 3.3.0 moved NoSuchFile exception to breezy.transport
* tests: pygments 2.14+ highlight whitespace in python code
* hghave: make different has_pyoxidizer functions have different names
* hghave: refactor checks for pygments versions using checkvers()
* rust-narrow: fix loop that never loops
* scmutil: make checknewlabel() allow "_" in otherwise numeric names (issue6737)
* bundlerepo: enforce the requirements declared by the underlying repository
* setup: make the version computation process more resistant
* fix: add more information to the debug output
* tag: disallow tagging the working directory
* dirstate: handle missing backup file on restoration
* dirstate-v2: complain early on docket name collision
* rust: upgrade minimum `rayon` dependency
* setup: support building from an ongoing merge
* rust: add debug log about skipping dirstate update
* rust-dirstate: trace append/no append to help debugging
* dirstate-v2: don't mmap the data file when on NFS
* run-tests: make it possible to nest conditionals
* dirstate: add some debug output when writing the dirstate
* testing: introduce util function to synchronize concurrent commands on files
* dirstate: add a way to test races happening during status
* dirstate: use more than a bool to control append behavior
* dirstate-v2: add devel config option to control write behavior
* rhg: fix race when a fixup file is deleted on disk
* rhg: fix race when an ambiguous file is deleted on disk
* dirstate: deal with read-race for pure python code
* dirstate: deal with read-race for python code using rust object
* dirstate: deal with read-race for pure rust code path (rhg)
* dirstate: set identity whenever we read the dirstate's v2 docket
* rust-dirstate-v2: don't write dirstate if data file has changed
* rhg: remember the inode of .hg/dirstate
= Mercurial 6.3.2 =
* [ecfc84b956a8] tests: expect the message from 1baf0fffd82f in test-hghave.t (issue6762)
* [5c095119bff4] tests: add the missing space to test-hghave.t (issue6762)
* [2c346c1c75ec] tests: use an all too familiar executable in test-run-tests.t (issue6661)
* [13c0e3b4fd35] tests: use `test -f` instead of `ls` to see if a file is present (issue6662)
* [8ced4ca30ea1] bisect: correct message about aborting an in-progress bisect (issue6527)
* filemerge: fix crash when using filesets in [partial-merge-tools]
* help: fix a py3 error interpolating Set into b'%s'
* match: make the FLAG_RE pattern a raw string
* python-compat: adapt to Python 3.11 BC breakage with `random.sample`
* rust-status: fix thread count ceiling
* hg: show the correct message when cloning an LFS repo with extension disabled
* extensions: process disabled external paths when `hgext` package is in-memory
* emitrevision: consider ancestors revision to emit as available base
* make: add a target for building pyoxidizer tests on macOS
* run-tests: support --pyoxidized on macOS
* packaging: add dependencies to the PyOxidizer build on macOS
* Miscellaneous test fixes
= Mercurial 6.3.1 =
* memory-usage: fix `hg log --follow --rev R F` space complexity (dcb2581e33be)
* Improve portability and robustness of test harness
* hg-core: relax dependencies pinning
* matcher: fix issues regex flag contained in pattern (issue6759)
* matcher: do not prepend '.*' to pattern using ^ after flags
* packaging: refresh dependency hashes (issue6750)
* cffi: fix a bytes vs str issue on macOS when listing directories
* commit: properly consider file include and exclude options when closing branch
* dirstate-v2: do not put the dirstate data file in a transaction
= Mercurial 6.3 =
== New Features ==
* testlib: add `--raw-sha1` option to `f`
* rhg: add `config.rhg` helptext
* config: add alias from `hg help rhg` to `hg help rust`
* rhg: add a config option to fall back immediately
* bundle: introduce a --exact option
* perf-bundle: add a new command to benchmark bundle creation time
* perf-bundle: accept --rev arguments
* perf-bundle: accept --type argument
* perf-unbundle: add a perf command to time the unbundle operation
* perf: introduce a benchmark for delta-find
* contrib: add support for rhel9
* phase-shelve: Implement a 'shelve.store' experimental config
* debug-delta-find: introduce a quiet mode
* sort-revset: introduce a `random` variant
* phase: introduce a dedicated requirement for the `archived` phase
* rebase: add boolean config item rebase.store-source
* rhg: make [rhg status -v] work when it needs no extra output
* rhg: support "!" syntax for disabling extensions
* rhg: add debugrhgsparse command to help figure out bugs in rhg
* rhg: add sparse support
* rhg-status: add support for narrow clones
* templates: add filter to reverse list
* contrib: add pull_logger extension
* revset: handle wdir() in `roots()`
* revset: handle wdir() in `sort(..., -topo)`
* rhg: support tweakdefaults
* rhg: parallellize computation of [unsure_is_modified]
== Default Format Change ==
These changes affect newly created repositories (or new clones) done with
Mercurial 6.3.
== New Experimental Features ==
== Bug Fixes ==
* shelve: demonstrate that the state is different across platforms (issue6735)
* shelve: in test for trailing whitespace, strip commit (issue6735)
* shelve: remove strip and rely on prior state (issue6735)
* tests: fix http-bad-server expected errors for python 3.10 (issue6643)
* status: let `--no-copies` override `ui.statuscopies`
* releasenotes: use re.MULTILINE mode when checking admonitions
* rhg: fallback to slow path on invalid patterns in hgignore
* Fix a bunch of leftover str/bytes issues from Python 3 migration
* keepalive: ensure `close_all()` actually closes all cached connections
* lfs: fix blob corruption when tranferring with workers on posix
* lfs: avoid closing connections when the worker doesn't fork
* dirstate-v2: update constant that wasn't kept in sync
* dirstate-v2: fix edge case where entries aren't sorted
* upgrade: no longer keep all revlogs in memory at any point
* rust-status: save new dircache even if just invalidated
* dirstate-v2: hash the source of the ignore patterns as well
* rhg: fallback when encountering ellipsis revisions
* shelve: handle empty parents and nodestoremove in shelvedstate (issue6748)
* profile: prevent a crash when line number is unknown
* tags-fnode-cache: do not repeatedly open the filelog in a loop
* tags-fnode-cache: skip building a changectx in getfnode
* rust: create wrapper struct to reduce `regex` contention issues
== Backwards Compatibility Changes ==
* chg worker processes will now correctly load per-repository configuration
when given a both a relative `--repository` path and an alternate working
directory via `--cwd`. A side-effect of this change is that these workers
will now return an error if hg cannot find the current working directory,
even when a different directory is specified via `--cwd`.
* phase: rename the requirement for internal-phase from `internal-phase` to `use-internal-phase` (see 74fb1842f8b962cf03d7cd5b841dbcf2ae065587)
== Internal API Changes ==
== Miscellaneous ==
* sslutil: use proper attribute to select python 3.7+
* typing: suppress a few pyi-errors with more recent pytype
* ci: bump pytype to 2022.03.29
* bundlespec: add documentation about existing option
* subrepo: avoid opening console window for non-native subrepos on Windows
* setup: unconditionally enable the `long-paths-support` option on Windows
* setup: use the full executable manifest from `python.exe`
* tests: work around libmagic bug in svn subrepo tests
* packagelib: use python3 by default
* Improve `hg bisect` performance
* perf: properly process formatter option in perf::unbundle
* compare-disco: miscellaneous display improvements
* fsmonitor: better compatibility with newer Pythons
* revlog: finer computation of "issnapshot"
* rhg: don't fallback if `strip` or `rebase` are activated
* perf: make perf::bundle compatible before 61ba04693d65
* perf: make perf::bundle compatible down to 5.2
* perf-unbundle: improve compatibility
* run-tests: display the time it took to install Mercurial
* mergetools: don't let meld open all changed files on startup
* dirstate-v2: skip evaluation of hgignore regex on cached directories