mercurial: Changelog

hg: always import hgdemandimport The deleted if condition is always true now that we dropped Python 2 and 3.5. Differential Revision: https://phab.mercurial-scm.org/D12361

tests: support another error case when detecting ipv4/ipv6 support I encountered this on Linux in a VM environment with a rather strange networking setup (both on the host and in the VM). Differential Revision: https://phab.mercurial-scm.org/D12371

debugdiscovery: fix a typo in the help Differential Revision: https://phab.mercurial-scm.org/D12372

rust-hg-cypython: upgrade dependencies This upgrades all dependencies to their latest version. This is routinely done to keep-up. Differential Revision: https://phab.mercurial-scm.org/D12359

rust-hg-core: upgrade dependencies This upgrades all dependencies to their latest version, except `clap` and `zstd` whose latest versions do not support our minimum supported Rust version 1.48.0. Same as for `rhg`, it contains security fix for `regex` which does not affect us too much, but doesn't hurt, and the rest of the upgrades are there simply to keep up. Differential Revision: https://phab.mercurial-scm.org/D12358

rhg: upgrade dependencies This upgrades all dependencies to their latest version, except `clap`, which is upgraded to the last 2.x series version, since 3.x does not support our minimum supported Rust version of 1.48.0. This contains a security fix for `regex` which does not affect us too much, but doesn't hurt, and the rest of the upgrades are there simply to keep up. Differential Revision: https://phab.mercurial-scm.org/D12357

chgserver: remove Python 2 file descriptor logic Follows up 0bb28b7736bc "chgserver: remove Python 2 support code." On Python 2, we had to close newfp prior to restoring the original file description since "delete newfp" would otherwise close the file descriptor shared with the long-lived fp: in attachio(): newfp = os.fdopen(fp.fileno(), mode, bufsize) in _restoreio(): newfp.close() # temporarily close newfp.fileno() (= fp.fileno()) os.dup2(fd, fp.fileno()) # reopen fp.fileno() with original fd On the other hand, we shouldn't call newfp.close() on Python 3 since any function calls are proxied to the underlying file object by procutil.LineBufferedWrapper.

dirstate-tree: optimize HashMap lookups with raw_entry_mut This switches to using `HashMap` from the hashbrown crate, in order to use its `raw_entry_mut` method. The standard library’s `HashMap` is also based on this same crate, but `raw_entry_mut` is not yet stable there: https://github.com/rust-lang/rust/issues/56167 Using version 0.9 because 0.10 is yanked and 0.11 requires Rust 1.49 This replaces in `DirstateMap::get_or_insert_node` a call to `HashMap<K, V>::entry` with `K = WithBasename<Cow<'on_disk, HgPath>>`. `entry` takes and consumes an "owned" `key: K` parameter, in case a new entry ends up inserted. This key is converted by `to_cow` from a value that borrows the `'path` lifetime. When this function is called by `Dirstate::new_v1`, `'path` is in fact the same as `'on_disk` so `to_cow` can return an owned key that contains `Cow::Borrowed`. For other callers, `to_cow` needs to create a `Cow::Owned` and thus make a costly heap memory allocation. This is wasteful if this key was already present in the map. Even when inserting a new node this is typically the case for its ancestor nodes (assuming most directories have numerous descendants). Differential Revision: https://phab.mercurial-scm.org/D12317