Mercurial > hg
view tests/test-transaction-rollback-on-sigpipe.t @ 46526:67b5fafd3a46
upgrade: speed up when we have only nodemap to downgrade
Similar to what we do on upgrade, if we have only persistent-nodemap to
downgrade we will just delete the nodemap files and update repository
requirements instead of processing all the revlogs.
After downgrade, we are left with unrequired docket and transaction files which
seems fine but can work on deleting them if someone feels we should.
Differential Revision: https://phab.mercurial-scm.org/D9992
author | Pulkit Goyal <7895pulkit@gmail.com> |
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date | Wed, 10 Feb 2021 17:08:34 +0530 |
parents | b713e4cae2d7 |
children | 77e73827a02d |
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Test that, when an hg push is interrupted and the remote side recieves SIGPIPE, the remote hg is able to successfully roll back the transaction. $ hg init -q remote $ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" -q ssh://user@dummy/`pwd`/remote local $ check_for_abandoned_transaction() { > [ -f $TESTTMP/remote/.hg/store/journal ] && echo "Abandoned transaction!" > } $ pidfile=`pwd`/pidfile $ >$pidfile $ script() { > cat >"$1" > chmod +x "$1" > } 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. $ killable_pipe=`pwd`/killable_pipe.sh $ script $killable_pipe <<EOF > #!/bin/bash > echo \$\$ >> $pidfile > exec cat > EOF $ remotecmd=`pwd`/remotecmd.sh $ script $remotecmd <<EOF > #!/bin/bash > hg "\$@" 1> >($killable_pipe) 2> >($killable_pipe >&2) > EOF In the pretxnchangegroup hook, kill the PIDs recorded above to simulate ssh disconnecting. Then exit nonzero, to force a transaction rollback. $ hook_script=`pwd`/pretxnchangegroup.sh $ script $hook_script <<EOF > #!/bin/bash > for pid in \$(cat $pidfile) ; do > kill \$pid > while kill -0 \$pid 2>/dev/null ; do > sleep 0.1 > done > done > exit 1 > EOF $ cat >remote/.hg/hgrc <<EOF > [hooks] > pretxnchangegroup.break-things=$hook_script > EOF $ cd local $ echo foo > foo ; hg commit -qAm "commit" $ hg push -q -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" --remotecmd $remotecmd 2>&1 | grep -v $killable_pipe abort: stream ended unexpectedly (got 0 bytes, expected 4) $ check_for_abandoned_transaction [1]