Mercurial > hg
view tests/test-bookmarks-strip.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 | e78a80f8f51e |
children |
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$ echo "[extensions]" >> $HGRCPATH $ echo "mq=" >> $HGRCPATH $ hg init $ echo qqq>qqq.txt rollback dry run without rollback information $ hg rollback no rollback information available [1] add file $ hg add adding qqq.txt commit first revision $ hg ci -m 1 set bookmark $ hg book test $ echo www>>qqq.txt commit second revision $ hg ci -m 2 set bookmark $ hg book test2 update to -2 (deactivates the active bookmark) $ hg update -r -2 1 files updated, 0 files merged, 0 files removed, 0 files unresolved (leaving bookmark test2) $ echo eee>>qqq.txt commit new head $ hg ci -m 3 created new head bookmarks updated? $ hg book test 1:25e1ee7a0081 test2 1:25e1ee7a0081 strip to revision 1 $ hg strip 1 saved backup bundle to $TESTTMP/.hg/strip-backup/*-backup.hg (glob) list bookmarks $ hg book test 0:5c9ad3787638 test2 0:5c9ad3787638