Mercurial > hg
view tests/test-revisions.t @ 50242:379a78001d8e stable
dirstate: set identity whenever we read the dirstate's v2 docket
The docket can be loaded outside of a full read (for exemple when
pre-fetching parents), so the current code would read/set the identity
after loading the data, opening a race condition:
A0: first process docket is read
B0: other process appends new data to the dirstate (and changes the docket)
A1: first process sets the identity (based on pre-B content, but with post-B identity)
A1: first process loads the dirstatemap from the data file
A1: first process does not detect the race and overwrites the update from B.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 01 Mar 2023 02:38:20 +0100 |
parents | be3d8178251e |
children |
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$ hg init repo $ cd repo $ echo 0 > a $ hg ci -qAm 0 $ for i in 5 8 14 43 167; do > hg up -q 0 > echo $i > a > hg ci -qm $i > done $ cat <<EOF >> .hg/hgrc > [alias] > l = log -T '{rev}:{shortest(node,1)}\n' > EOF $ hg l 5:00f 4:7ba5d 3:7ba57 2:72 1:9 0:b $ cat <<EOF >> .hg/hgrc > [experimental] > revisions.disambiguatewithin=not 4 > EOF $ hg l 5:00 4:7ba5d 3:7b 2:72 1:9 0:b 9 was unambiguous and still is $ hg l -r 9 1:9 7 was ambiguous and still is $ hg l -r 7 abort: ambiguous revision identifier: 7 [10] 7b is no longer ambiguous $ hg l -r 7b 3:7b $ cd ..