log: introduce struct that carries log traversal options I tried to refactor logcmdutil.getrevs() without using an options struct, but none of these attempts didn't work out. Since every stage of getrevs() needs various log command options (e.g. both matcher and revset query need file patterns), it isn't possible to cleanly split getrevs() into a command layer and a core logic. So, this patch introduces a named struct to carry command options in slightly abstracted way, which will be later used by "hg grep" and "hg churn". More fields will be added to the walkopt struct. Type hints aren't verified. I couldn't figure out how to teach pytype to load its own attr type stubs in place of our .thirdparty.attr. Conditional import didn't work. s/^from \.thirdparty // is the only way I found pytype could parse the @attr.ib decorator.

log: remove unused argument from _makerevset() I want to make getrevs() reusable for other commands, but the dependency graph of this getrevs() function is a mess. Let's minimize it first.

log: remove stale comment about order of user revset _makerevset() no longer depends on the computed revs since ea3320015d54 "log: remove dead code to follow descendants if ascending revisions specified."

rust: add `dirstate_tree` module Mercurial needs to represent the filesystem hierarchy on which it operates, for example in the dirstate. Its current on-disk representation is an unsorted, flat structure that gets transformed in the current Rust code into a `HashMap`. This loses the hierarchical information of the dirstate, leading to some unfortunate performance and algorithmic compromises. This module adds an implementation of a radix tree that is specialized for representing the dirstate: its unit is the path component. I have made no efforts to optimize either its memory footprint or its insertion speed: they're pretty bad for now. Following will be a few patches that modify the dirstate.status logic to use that new hierarchical information, fixing issue 6335 in the same swing. Differential Revision: https://phab.mercurial-scm.org/D9085

Added signature for changeset 07731064ac41

Added tag 5.5.2 for changeset 07731064ac41

hgdemandimport: exclude more sqlalchemy modules We could potentially exclude the entire sqlalchemy library.

rust-dirstatemap: add #[timed] to dirstatemap read for comparison Differential Revision: https://phab.mercurial-scm.org/D9084

merge: make low-level update() private (API) We have very few callers left that call the low-level `merge.update()` function. I think it's time to make it private. I'll remove the remaining callers in coming patches, except for one call from the `rebase` module. I hope to eventually fix that too, but it's more complex because it requires teaching `merge.graft()` to work with a dirty working copy. Differential Revision: https://phab.mercurial-scm.org/D9065

merge: use merge.clean_update() when applicable We have had this higher-level function (higher than `merge.update()`, that is) for a while. Let's simply some callers by using it. I don't know why I didn't do this when I introduced the function. After this patch, there are no remaining callers that call `hg.updaterepo()` with `overwrite=True`. We'll clean that up soon. Differential Revision: https://phab.mercurial-scm.org/D9063