annotate tests/test-transaction-rollback-on-sigpipe.t @ 48393:1a8a70b4b0ad

dirstate: cleanup remaining of "now" during write Since the whole `need_delay` have been removed, we no longer need this. Differential Revision: https://phab.mercurial-scm.org/D11797
author Pierre-Yves David <pierre-yves.david@octobus.net>
date Fri, 19 Nov 2021 03:03:01 +0100
parents 9c4204b7f3e4
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1 Test that, when an hg push is interrupted and the remote side receives SIGPIPE,
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2 the remote hg is able to successfully roll back the transaction.
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3
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4 $ hg init -q remote
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5 $ hg clone -q ssh://user@dummy/`pwd`/remote local
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6 $ SIGPIPE_REMOTE_DEBUG_FILE="$TESTTMP/DEBUGFILE"
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7 $ SYNCFILE1="$TESTTMP/SYNCFILE1"
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8 $ SYNCFILE2="$TESTTMP/SYNCFILE2"
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9 $ export SIGPIPE_REMOTE_DEBUG_FILE
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10 $ export SYNCFILE1
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11 $ export SYNCFILE2
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12 $ PYTHONUNBUFFERED=1
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13 $ export PYTHONUNBUFFERED
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15 On the remote end, run hg, piping stdout and stderr through processes that we
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16 know the PIDs of. We will later kill these to simulate an ssh client
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17 disconnecting.
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19 $ remotecmd="$RUNTESTDIR/testlib/sigpipe-remote.py"
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21 In the pretxnchangegroup hook, kill the PIDs recorded above to simulate ssh
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22 disconnecting. Then exit nonzero, to force a transaction rollback.
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25 $ cat >remote/.hg/hgrc <<EOF
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26 > [hooks]
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27 > pretxnchangegroup.00-break-things=sh "$RUNTESTDIR/testlib/wait-on-file" 10 "$SYNCFILE2" "$SYNCFILE1"
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28 > pretxnchangegroup.01-output-things=echo "some remote output to be forward to the closed pipe"
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29 > pretxnchangegroup.02-output-things=echo "some more remote output"
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30 > EOF
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31
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32 $ hg --cwd ./remote tip -T '{node|short}\n'
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33 000000000000
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34 $ cd local
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35 $ echo foo > foo ; hg commit -qAm "commit"
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36
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37 (use quiet to avoid flacky output from the server)
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38
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39 $ hg push --quiet --remotecmd "$remotecmd"
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40 abort: stream ended unexpectedly (got 0 bytes, expected 4)
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41 [255]
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42 $ cat $SIGPIPE_REMOTE_DEBUG_FILE
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43 SIGPIPE-HELPER: Starting
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44 SIGPIPE-HELPER: Redirection in place
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45 SIGPIPE-HELPER: pipes closed in main
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46 SIGPIPE-HELPER: SYNCFILE1 detected
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47 SIGPIPE-HELPER: worker killed
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48 SIGPIPE-HELPER: creating SYNCFILE2
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49 SIGPIPE-HELPER: Shutting down
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50 SIGPIPE-HELPER: Server process terminated with status 255 (no-windows !)
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51 SIGPIPE-HELPER: Server process terminated with status 1 (windows !)
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52 SIGPIPE-HELPER: Shut down
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53
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54 The remote should be left in a good state
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55 $ hg --cwd ../remote tip -T '{node|short}\n'
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56 000000000000
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58 #if windows
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60 XXX-Windows Broken behavior to be fixed
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61
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62 Behavior on Windows is broken and should be fixed. However this is a fairly
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63 corner case situation and no data are being corrupted. This would affect
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64 central repository being hosted on a Windows machine and accessed using ssh.
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65
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66 This was catch as we setup new CI for Windows. Making the test pass on Windows
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67 was enough of a pain that fixing the behavior set aside for now. Dear and
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68 honorable reader, feel free to fix it.
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69
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70 $ hg --cwd ../remote recover
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71 rolling back interrupted transaction
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72 (verify step skipped, run `hg verify` to check your repository content)
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73
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74 #else
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75
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76 $ hg --cwd ../remote recover
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77 no interrupted transaction available
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78 [1]
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80 #endif