Mercurial > hg
view tests/test-close-head.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> |
---|---|
date | Wed, 01 Mar 2023 02:38:20 +0100 |
parents | fdd4d668ceb5 |
children |
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$ hg init test-content $ cd test-content $ hg debugbuilddag '+2*2*3*4+7' $ hg bookmark -r 1 @ $ hg log -G --template '{rev}:{node|short}' o 11:1d876b1f862c | o 10:ea5f71948eb8 | o 9:f1b0356d867a | o 8:e8d1253fb0d7 | o 7:d423bbba4459 | o 6:a2f58e9c1e56 | o 5:3a367db1fabc | o 4:e7bd5218ca15 | | o 3:6100d3090acf |/ | o 2:fa942426a6fd |/ | o 1:66f7d451a68b |/ o 0:1ea73414a91b $ hg --config extensions.closehead= close-head -m 'Not a head' 0 1 abort: revision is not an open head: 0 [255] $ hg --config extensions.closehead= close-head -m 'Not a head' -r 0 1 abort: revision is not an open head: 0 [255] $ hg id 000000000000 $ hg --config extensions.closehead= close-head -m 'Close old heads' -r 1 2 $ hg id 000000000000 $ hg bookmark @ 1:66f7d451a68b $ hg heads changeset: 11:1d876b1f862c user: debugbuilddag date: Thu Jan 01 00:00:11 1970 +0000 summary: r11 changeset: 3:6100d3090acf parent: 0:1ea73414a91b user: debugbuilddag date: Thu Jan 01 00:00:03 1970 +0000 summary: r3 $ hg --config extensions.closehead= close-head -m 'Close more old heads' -r 11 $ hg heads changeset: 3:6100d3090acf parent: 0:1ea73414a91b user: debugbuilddag date: Thu Jan 01 00:00:03 1970 +0000 summary: r3 $ hg --config extensions.closehead= close-head -m 'Not a head' 0 abort: revision is not an open head: 0 [255] $ hg --config extensions.closehead= close-head -m 'Already closed head' 1 abort: revision is not an open head: 1 [255] $ hg init ../test-empty $ cd ../test-empty $ hg debugbuilddag '+1' $ hg log -G --template '{rev}:{node|short}' o 0:1ea73414a91b $ hg --config extensions.closehead= close-head -m 'Close initial revision' 0 $ hg heads [1]