def svn_sanity_check(self, lines_changed):
        # svn diff changes and react if changes are too large
        if sum(lines_changed) > MAX_ALLOWED_LINES_CHANGED:
            if self.FORCE:
                self.log("Sanity check failed but FORCE == True. "
                         "Ignoring thresholds.")
            else:
                raise BuildError("Wow! Too many lines changed during this "
                                 "checkin. {0} lines add, {1} lines removed."
                                 .format(*lines_changed))
If sanity checks fail, this function will return a string which is
dataset/ETHPy150Open mozilla/inventory/mozdns/mozbind/builder.py/SVNBuilderMixin.svn_sanity_check