rust-dirstatemap: remove additional lookups in dirstatemap We're copying this shortcut from the Python implementation, pretty standard for this codebase. Differential Revision: https://phab.mercurial-scm.org/D7117

tests: avoid chmod on windows in hgrc tests Follow up on changeset d201a637c971 introducing this test, which fails on Windows.

py3: fix sorting of obsolete markers during push This fixes similar errors as in 01e8eefd9434: TypeError: '<' not supported between instances of 'NoneType' and 'tuple'

exchange: extract a function to sort obsolete markers Follows up on changeset 01e8eefd9434, several other occurrences of sorted() need to be fixed. The _sortedmarkers() handles sorting obsmarkers with a None value as last element on Python 3.

py3: encode underlying error message during parse error of %include

convert: convert os.devnull to bytes before trying to join it with other bytes Together with the previous commit relating to emailparser this gets test-convert-tla.t passing under py3. Differential Revision: https://phab.mercurial-scm.org/D7062

rust-dirstate-status: add call to rust-fast path for `dirstate.status` The reasoning behind this patch is explained in the first patch of the series. Differential Revision: https://phab.mercurial-scm.org/D7060

rust-dirstate-status: rust-cpython bindings for `dirstate.status` The ref-sharing mechanism has improved, but its ergonomics still left a bit to be desired, as expected. Differential Revision: https://phab.mercurial-scm.org/D7059

rust-refsharing: add missing lifetime parameter in ref_sharing Differential Revision: https://phab.mercurial-scm.org/D7110

rust-dirstate-status: add first Rust implementation of `dirstate.status` Note: This patch also added the rayon crate as a Cargo dependency. It will help us immensely in making Rust code parallel and easy to maintain. It is a stable, well-known, and supported crate maintained by people on the Rust team. The current `dirstate.status` method has grown over the years through bug reports and new features to the point where it got too big and too complex. This series does not yet improve the logic, but adds a Rust fast-path to speed up certain cases. Tested on mozilla-try-2019-02-18 with zstd compression: - `hg diff` on an empty working copy: - c: 1.64(+-)0.04s - rust+c before this change: 2.84(+-)0.1s - rust+c: 849(+-)40ms - `hg commit` when creating a file: - c: 5.960s - rust+c before this change: 5.828s - rust+c: 4.668s - `hg commit` when updating a file: - c: 4.866s - rust+c before this change: 4.371s - rust+c: 3.855s - `hg status -mard` - c: 1.82(+-)0.04s - rust+c before this change: 2.64(+-)0.1s - rust+c: 896(+-)30ms The numbers are clear: the current Rust `dirstatemap` implementation is super slow, its performance needs to be addressed. This will be done in a future series, immediately after this one, with the goal of getting Rust to be at least to the speed of the Python + C implementation in all cases before the 5.2 freeze. At worse, we gate dirstatemap to only be used in those cases. Cases where the fast-path is not executed: - for commands that need ignore support (`status`, for example) - if subrepos are found (should not be hard to add, but winter is coming) - any other matcher than an `alwaysmatcher`, like patterns, etc. - with extensions like `sparse` and `fsmonitor` The next step after this is to rethink the logic to be closer to Jane Street's Valentin Gatien-Baron's Rust fast-path which does a lot less work when possible. Differential Revision: https://phab.mercurial-scm.org/D7058