Mercurial > hg
view tests/test-transaction-rollback-on-sigpipe.t @ 47584:ee1fc8f970e6
run-tests: introduce a `HGTEST_REAL_HG` variable for test
It turns out that currently, `hg` and `which hg` can point to different things
because `hg` is an alias… This is annoying because script and pieces of test
are unknowingly using the wrong `hg`.
We will fix it in another changeset. However some test actually need to use a
real `hg` binary and not some `chg` or `rhg` equivalent. So we introduce a new
variable with the right value and we put it to us in the appropriate location.
Differential Revision: https://phab.mercurial-scm.org/D11049
author | Pierre-Yves David <pierre-yves.david@octobus.net> |
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date | Fri, 09 Jul 2021 20:03:46 +0200 |
parents | ed81f2be5527 |
children | eb611ecb435c |
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Test that, when an hg push is interrupted and the remote side receives SIGPIPE, the remote hg is able to successfully roll back the transaction. $ hg init -q remote $ hg clone -e "\"$PYTHON\" \"$RUNTESTDIR/dummyssh\"" -q ssh://user@dummy/`pwd`/remote local $ SIGPIPE_REMOTE_DEBUG_FILE="$TESTTMP/DEBUGFILE" $ SYNCFILE1="$TESTTMP/SYNCFILE1" $ SYNCFILE2="$TESTTMP/SYNCFILE2" $ export SIGPIPE_REMOTE_DEBUG_FILE $ export SYNCFILE1 $ export SYNCFILE2 $ PYTHONUNBUFFERED=1 $ export PYTHONUNBUFFERED On the remote end, run hg, piping stdout and stderr through processes that we know the PIDs of. We will later kill these to simulate an ssh client disconnecting. $ remotecmd="$RUNTESTDIR/testlib/sigpipe-remote.py" In the pretxnchangegroup hook, kill the PIDs recorded above to simulate ssh disconnecting. Then exit nonzero, to force a transaction rollback. $ cat >remote/.hg/hgrc <<EOF > [hooks] > pretxnchangegroup.00-break-things="$RUNTESTDIR/testlib/wait-on-file" 10 "$SYNCFILE2" "$SYNCFILE1" > pretxnchangegroup.01-output-things=echo "some remote output to be forward to the closed pipe" > EOF $ hg --cwd ./remote tip -T '{node|short}\n' 000000000000 $ cd local $ echo foo > foo ; hg commit -qAm "commit" $ hg push -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" --remotecmd "$remotecmd" pushing to ssh://user@dummy/$TESTTMP/remote searching for changes remote: adding changesets remote: adding manifests remote: adding file changes abort: stream ended unexpectedly (got 0 bytes, expected 4) [255] $ cat $SIGPIPE_REMOTE_DEBUG_FILE SIGPIPE-HELPER: Starting SIGPIPE-HELPER: Mercurial started SIGPIPE-HELPER: Redirection in place SIGPIPE-HELPER: SYNCFILE1 detected SIGPIPE-HELPER: pipes closed SIGPIPE-HELPER: creating SYNCFILE2 SIGPIPE-HELPER: Shutting down SIGPIPE-HELPER: Server process terminated SIGPIPE-HELPER: Shut down The remote should be left in a good state $ hg --cwd ../remote tip -T '{node|short}\n' 000000000000 $ hg --cwd ../remote recover no interrupted transaction available [1]