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Run mq.sh command over SSH to reduce connections #36

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8 changes: 8 additions & 0 deletions mq.sh
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Original file line number Diff line number Diff line change
Expand Up @@ -68,6 +68,14 @@ case "$command" in
;;
esac

# At this point all of the commands we might run need to SSH. Only the "run"
# command passes files, so for the "sem" etc we can just ssh to tftp, and rerun
# the full mq.sh script. This uses only 1 SSH connection.
if [ "$(hostname -f)" != "${HOST}" ] && [ "$command" != "run" ]; then
RemoteExec mq.sh "$command" "$@"
exit $?
fi


# Check we can talk to the cannonical host
if ! RemoteCommand exit; then
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7 changes: 7 additions & 0 deletions scripts/remote
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Expand Up @@ -27,3 +27,10 @@ RemoteCommand() {
fi
RemoteCommandOn "${HOST}" "$@"
}

# Like RemoteCommand, but doesn't run "stty" to change echo behaviour
# Needs -tt for pseudo-tty so that Ctrl+C interrupts are forwarded to
# bash on the remote end.
RemoteExec() {
ssh -tt -oLogLevel=quiet "${HOST}" "$@"
}
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