Mercurial > hg
annotate tests/test-transaction-rollback-on-sigpipe.t @ 49603:3eda36e9b3d6 stable
matcher: fix issues regex flag contained in pattern (issue6759)
Python 3.11 is now enforcing that flag must be at the beginning of the regex
This creates a serious regression for people using Python 3.11 with an hgignore
using flag in a "relre" pattern.
We now detect any flags in such pattern and "prepend" our ".*" pattern after them.
In addition, we now insert the flag in the regexp to only affect the pattern we
are rewriting. Otherwise, the regex built from the combined pattern would these
flags in the middle of it anyway.
As a side effect of this last change, we fix a bug… before this change regex
flag in a pattern would affect all combined patterns. That was bad and is not
longer the case.
The Rust code needs to be updated to fix that very bug, but we will do it in
another changeset.
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Wed, 16 Nov 2022 13:05:01 +0100 |
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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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18 |
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19 $ remotecmd="$RUNTESTDIR/testlib/sigpipe-remote.py" |
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20 |
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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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23 |
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24 |
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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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57 |
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58 #if windows |
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59 |
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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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79 |
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80 #endif |