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Test that, when an hg push is interrupted and the remote side recieves SIGPIPE,
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the remote hg is able to successfully roll back the transaction.
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$ hg init -q remote
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$ hg clone -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" -q ssh://user@dummy/`pwd`/remote local
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$ check_for_abandoned_transaction() {
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> [ -f $TESTTMP/remote/.hg/store/journal ] && echo "Abandoned transaction!"
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> }
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$ pidfile=`pwd`/pidfile
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$ >$pidfile
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$ script() {
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> cat >"$1"
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> chmod +x "$1"
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> }
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On the remote end, run hg, piping stdout and stderr through processes that we
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know the PIDs of. We will later kill these to simulate an ssh client
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disconnecting.
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$ killable_pipe=`pwd`/killable_pipe.sh
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$ script $killable_pipe <<EOF
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> #!/bin/bash
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> echo \$\$ >> $pidfile
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> exec cat
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> EOF
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$ remotecmd=`pwd`/remotecmd.sh
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$ script $remotecmd <<EOF
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> #!/bin/bash
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> hg "\$@" 1> >($killable_pipe) 2> >($killable_pipe >&2)
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> EOF
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In the pretxnchangegroup hook, kill the PIDs recorded above to simulate ssh
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disconnecting. Then exit nonzero, to force a transaction rollback.
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$ hook_script=`pwd`/pretxnchangegroup.sh
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$ script $hook_script <<EOF
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> #!/bin/bash
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> for pid in \$(cat $pidfile) ; do
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> kill \$pid
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> while kill -0 \$pid 2>/dev/null ; do
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> sleep 0.1
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> done
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> done
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> exit 1
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> EOF
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$ cat >remote/.hg/hgrc <<EOF
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> [hooks]
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> pretxnchangegroup.break-things=$hook_script
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> EOF
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$ cd local
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$ echo foo > foo ; hg commit -qAm "commit"
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$ hg push -q -e "\"$PYTHON\" \"$TESTDIR/dummyssh\"" --remotecmd $remotecmd 2>&1 | grep -v $killable_pipe
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abort: stream ended unexpectedly (got 0 bytes, expected 4)
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$ check_for_abandoned_transaction
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[1]
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