Mercurial > hg
annotate tests/test-dirstate-version-fallback.t @ 50660:bf16ef96defe stable
rust-dirstate: fall back to v1 if reading v2 failed
This will help us not fail when a v1 dirstate is present on disk while a v2
was expected (which could happen with a racy/interrupted upgrade).
author | Raphaël Gomès <rgomes@octobus.net> |
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date | Mon, 05 Jun 2023 16:43:27 +0200 |
parents | 9e08cfbe77b1 |
children | e7a3611181aa |
rev | line source |
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50659
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dirstate: add test showing dirstate version mismatch causes an error
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1 $ cat >> $HGRCPATH << EOF |
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2 > [storage] |
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3 > dirstate-v2.slow-path=allow |
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4 > EOF |
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5 |
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6 Set up a v1 repo |
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7 |
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8 $ hg init repo |
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9 $ cd repo |
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10 $ echo a > a |
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11 $ hg add a |
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12 $ hg commit -m a |
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13 $ hg debugrequires | grep dirstate |
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14 [1] |
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15 $ ls -1 .hg/dirstate* |
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16 .hg/dirstate |
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17 |
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18 Copy v1 dirstate |
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19 $ cp .hg/dirstate $TESTTMP/dirstate-v1-backup |
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20 |
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21 Upgrade it to v2 |
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22 |
50660
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23 $ hg debugupgraderepo -q --config format.use-dirstate-v2=1 --run | egrep 'added:|removed:' |
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24 added: dirstate-v2 |
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25 $ hg debugrequires | grep dirstate |
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26 dirstate-v2 |
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27 $ ls -1 .hg/dirstate* |
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28 .hg/dirstate |
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29 .hg/dirstate.* (glob) |
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30 |
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31 Manually reset to dirstate v1 to simulate an incomplete dirstate-v2 upgrade |
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32 |
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33 $ rm .hg/dirstate* |
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34 $ cp $TESTTMP/dirstate-v1-backup .hg/dirstate |
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35 |
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36 There should be no errors, but a v2 dirstate should be written back to disk |
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37 $ hg st |
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38 $ ls -1 .hg/dirstate* |
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39 .hg/dirstate |
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40 .hg/dirstate.* (glob) |
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41 |
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42 Corrupt the dirstate to see how the errors show up to the user |
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43 $ echo "I ate your data" > .hg/dirstate |
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44 |
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45 $ hg st |
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46 abort: working directory state appears damaged! (no-rhg !) |
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47 (falling back to dirstate-v1 from v2 also failed) (no-rhg !) |
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48 abort: Too little data for dirstate. (rhg !) |
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49 [255] |