dirstate: ignore sub-second component when either is zero in mtime When comparing mtimes for equality. Some APIs simply return zero when more precision is not available. When comparing values from different sources, if only one is truncated in that way, doing a simple comparison would cause many false negatives. Differential Revision: https://phab.mercurial-scm.org/D11701

dirstate-v2: add a new MTIME_SECOND_AMBIGUOUS flags This flag will let us use more `mtime` value in the future. For now we have a minimal handling of the flag at read time, but we will never put ourself in a situation where we will needs to writes it. See the flag documentation for details. Differential Revision: https://phab.mercurial-scm.org/D11700

dirstate: store mtimes with nanosecond precision in memory Keep integer seconds since the Unix epoch, together with integer nanoseconds in the `0 <= n < 1e9` range. For now, nanoseconds are still always zero. This commit is about data structure changes. Differential Revision: https://phab.mercurial-scm.org/D11684

rust: remove now-unused DirstateEntry::clear_ambiguous_mtime method Differential Revision: https://phab.mercurial-scm.org/D11696

dirstate: align Rust function name to `need_delay` The rest of the code use this name. It is not a great name, but it is better to stay consistent. Differential Revision: https://phab.mercurial-scm.org/D11699

dirstate: rename a `very_likely_equal` method to `likely_equal` No need to oversell it. Differential Revision: https://phab.mercurial-scm.org/D11691

backout: backed out changeset 2f2107c01dee After discussion on the original phab patch, we've decided to wait until Python 2 support is dropped to do this since the behavior differs for relatively obscure reasons. Differential Revision: https://phab.mercurial-scm.org/D11692

backout: backed out changeset 6edc8800dbc3 Same as the previous changeset. Differential Revision: https://phab.mercurial-scm.org/D11693

dirstate-v2: preserve the fallback values on disk When the fallback values are set, they are now read and written to disk. See format documentation for details. Differential Revision: https://phab.mercurial-scm.org/D11688

dirstate: make DirstateItem constructor accept fallback value This could arguably goes in the previous changeset, but I wanted to keep that previous changeset small to focus more on the user code and the documentation. Differential Revision: https://phab.mercurial-scm.org/D11687

dirstate: add a concept of "fallback" flags to dirstate item The concept is defined and "used" by the flag code, but it is neither persisted nor set anywhere yet. We currently focus on defining the semantic of the attribute. More to come in the next changesets Check the inline documentation for details. Differential Revision: https://phab.mercurial-scm.org/D11686

dirstate-v2: adds two flag to track the presence of some unrecorded files Right now, we don't record ignored or unknown files in the dirstate. However the structure would allow it. So we introduce two flags that can be used to clarify whether all unknown/ignored children are recorded or not. This will allow for more information to be stored in the future if this end up being relevant. Differential Revision: https://phab.mercurial-scm.org/D11682

dirstate-v2: adds a flag to mark a file as modified Right now, a files with a file system state that requires a lookup (same size, different mtime) will requires a lookup. If the result of that lookup is a modified files, it will remains ambiguous, requiring a lookup on the next status run too. To fix this, we introduce a dedicated flag in the new format. Such flag will allow to record such file as "known modified" avoiding an extra lookup later. As None of the associate code currently exist in the status code, we do the minimal implementation: if we read a dirstate entry with this flag set, we make it as "ambiguous" so that the next status code has to look it up. The same as it would have to without this flag existing anyway. Differential Revision: https://phab.mercurial-scm.org/D11681

rhg: simplify split_metadata It turns out that it's possible to implement `FilelogEntry.into_data` on top of `split`, as proposed by @spectral. Differential Revision: https://phab.mercurial-scm.org/D11689

pyoxidizer: default to a meaningless release instead of hardcoding 5.8 This way we don't advertise the wrong version, or if we do it's really obvious. To be honest, I'm not even sure that `VERSION` should be optional, but I also have never used the packaging tools so far, this is simply something I saw. Differential Revision: https://phab.mercurial-scm.org/D11360

copy: recommend `--at-rev .` if target was added in parent commit If the target file was added in the working copy parent, it's much more likely that the user meant to use `--at-rev .` (to record the copy/rename in the that commit) than `--force` (to replace the just-added file by another file). Differential Revision: https://phab.mercurial-scm.org/D11667

fix: appease pyflakes and make unused variables more obvious pyflakes is complaining that `baserevs` is redefined by the list comprehension, and while this lint can be valuable, it's not actually a problem here. Differential Revision: https://phab.mercurial-scm.org/D11683

rewrite: fix issue6599 Explanation inside. Differential Revision: https://phab.mercurial-scm.org/D11685

bookmarks: add a `ignore` variant of the bookmark mode This new mode allow to disable bookmark exchange with some path (or all path). Differential Revision: https://phab.mercurial-scm.org/D11677

bookmarks: add support for `mirror` mode to `incoming` This is more consistent. Differential Revision: https://phab.mercurial-scm.org/D11676

bookmarks: move the `mirror` option to the `paths` section A new `bookmarks` section with a `mirror` option have been added. That option has never been released yet. This new options is limited since it affect all paths without distinction. In case where a repository is interacting with multiple peers, being able to control behavior on a path basis can be quite valuable. In addition, having more variant of behavior would be interesting, especially a mode where no bookmark exchanged is tried at all. Such new mode (implemented later) make a lot of sense for configuration on a path-basis. Configuration of the default behavior is still possible through the usage of generic path configuration. The "old" config, becomes: [bookmarks] mirror=True becomes: [path] *:bookmarks.mode=mirror Differential Revision: https://phab.mercurial-scm.org/D11675

path: keep the path instance in the `pulloperation` This will allow more pull code to use the path options. Ideally we would modify the peer API to keep the path instance. However that is much more churn that I can deal with for my current goal: adjusting a user facing API for a new feature before we release it in the 6.0 changesets. So I am taking a shortcut that seems reasonable. Differential Revision: https://phab.mercurial-scm.org/D11674

path: return path instance directly from get_pull_paths This means the caller has to do a bit more work, however it give access to the `path` instance and the information it contains. Differential Revision: https://phab.mercurial-scm.org/D11673

path: unify path creation in `get_pull_paths` This remove a special case and will make it possible to return `path` instance directly. Differential Revision: https://phab.mercurial-scm.org/D11672

path: add a new argument to control path validation During pull, unvalidated path might be used, having the option to do so directly will allow use to simplify some code and unlock more `path` usage later in the series. Differential Revision: https://phab.mercurial-scm.org/D11671

rhg: internally, return a structured representation from hg cat The purpose of this change is to make it possible to support limited templating in `hg cat`, so we could print separators between files etc. The templating itself is not implemented yet, so this functionality is unused in `rhg cat`. However, in our fork of hg we're implementing a slightly different command `hg jscat` which makes use of this. So accepting this change will let us minimize the size of the patch we're maintaining on our side. Differential Revision: https://phab.mercurial-scm.org/D11679

rhg: fix `hg cat` interaction with null revision Differential Revision: https://phab.mercurial-scm.org/D11664

dirstate-v2: add an option to prevent unintentional slow dirstate-v2 This is the project policy discussed in November 2020 and already put to use for the persistent nodemap. Differential Revision: https://phab.mercurial-scm.org/D11668

rhg: fix formatting error reported by test-check-format-rust.t Differential Revision: https://phab.mercurial-scm.org/D11670

chistedit: add option to show order of commits in opposite order Many users (including me) expect the order of commits in histedit to match the order in `hg log -G` and are confused because it doesnn't. This patch adds an option to show later commits first in the list. I've only added support for it in chistedit for now. As a consequence, I've marked the config option experimental (I think it should apply to both interfaces before it graduates). Differential Revision: https://phab.mercurial-scm.org/D11669