Mercurial > hg
view tests/test-pull-permission.t @ 48454:473af5cbc209
rhg: Add support for `rhg status --copies`
Copy sources are collected during `status()` rather than after the fact like
in Python, because `status()` takes a `&mut` exclusive reference to the dirstate map
(in order to potentially mutate it for directory mtimes) and returns `Cow<'_, HgPath>`
that borrow the dirstate map.
Even though with `Cow` only some shared borrows remain, the still extend the same
lifetime of the initial `&mut` so the dirstate map cannot be borrowed again
to access copy sources after the fact:
https://doc.rust-lang.org/nomicon/lifetime-mismatch.html#limits-of-lifetimes
Additionally, collecting copy sources during the dirstate tree traversal that
`status()` already does avoids the cost of another traversal or other lookups
(though I haven’t benchmarked that cost).
Differential Revision: https://phab.mercurial-scm.org/D11899
author | Simon Sapin <simon.sapin@octobus.net> |
---|---|
date | Fri, 10 Dec 2021 16:18:58 +0100 |
parents | f1186c292d03 |
children | 2f2682f40ea0 |
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#require unix-permissions no-root $ hg init a $ cd a $ echo foo > b $ hg add b $ hg ci -m "b" $ chmod -w .hg/store $ cd .. $ hg clone a b requesting all changes adding changesets adding manifests adding file changes added 1 changesets with 1 changes to 1 files new changesets 97310831fa1a updating to branch default 1 files updated, 0 files merged, 0 files removed, 0 files unresolved $ chmod +w a/.hg/store # let test clean up $ cd b $ hg verify checking changesets checking manifests crosschecking files in changesets and manifests checking files checked 1 changesets with 1 changes to 1 files $ cd ..