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
heptapod-ci: remove useless mentions of Python 3
Now that we don't have Python 2 jobs, we can go with shorter names.
Differential Revision: https://phab.mercurial-scm.org/D12354
revlog: remove unused `rank` variable from D12209
Differential Revision: https://phab.mercurial-scm.org/D12355
demandimport: delete demandimportpy2 module
We no longer support Python 2.
Differential Revision: https://phab.mercurial-scm.org/D12353
py3: use class X: instead of class X(object):
The inheritance from object is implied in Python 3. So this should
be equivalent.
This change was generated via an automated search and replace. So there
may have been some accidental changes.
Differential Revision: https://phab.mercurial-scm.org/D12352