breakit_break() {
        cat > ${TMPDIR}/test123 <<END
${@breakit_output(d)}
END
}

def breakit_output(d):
    return '\n'.join(get_layers_branch_rev(d))

python breakit_eventhandler() {
	import bb.event
	import bb.build

	if isinstance(e, bb.event.BuildCompleted):
		bb.note("possible breakage coming up...")
		bb.build.exec_func("breakit_break", e.data)
}

addhandler breakit_eventhandler