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How to use yield_default_initlevel method in autotest

Best Python code snippet using autotest_python

harness_standalone.py

Source:harness_standalone.py

...29        dest = os.path.join(tests_dir, 'control')30        if os.path.abspath(src) != os.path.abspath(dest):31            shutil.copyfile(src, dest)32            job.control_set(dest)33        def yield_default_initlevel():34            """35            If we really can't figure out something better, default to '2',36            which is the case with some debian systems37            """38            init_default = '2'39            logging.error('Could not determine initlevel, assuming %s' %40                          init_default)41            return init_default42        rc = os.path.join(self.autodir, 'tools/autotest')43        # see if system supports event.d versus systemd versus inittab44        supports_eventd = os.path.exists('/etc/event.d')45        supports_systemd = os.path.exists('/etc/systemd')46        supports_inittab = os.path.exists('/etc/inittab')47        # This is the best heuristics I can think of for identifying48        # an embedded system running busybox49        busybox_system = (os.readlink('/bin/sh') == 'busybox')50        # Small busybox systems usually use /etc/rc.d/ straight51        if busybox_system:52            initdefault = ''53        elif supports_eventd or supports_systemd:54            try:55                # NB: assuming current runlevel is default56                cmd_result = utils.run('/sbin/runlevel', verbose=False)57                initdefault = cmd_result.stdout.split()[1]58            except (error.CmdError, IndexError):59                initdefault = yield_default_initlevel()60        elif supports_inittab:61            try:62                cmd_result = utils.run('grep :initdefault: /etc/inittab',63                                       verbose=False)64                initdefault = cmd_result.stdout.split(':')[1]65            except (error.CmdError, IndexError):66                initdefault = yield_default_initlevel()67        else:68            initdefault = yield_default_initlevel()69        vendor = distro.detect().name70        service = '/etc/init.d/autotest'71        if vendor == 'SUSE':72            service_link = '/etc/init.d/rc%s.d/S99autotest' % initdefault73        else:74            service_link = '/etc/rc%s.d/S99autotest' % initdefault75        try:76            if os.path.islink(service):77                os.remove(service)78            if os.path.islink(service_link):79                os.remove(service_link)80            os.symlink(rc, service)81            os.symlink(rc, service_link)82        except (OSError, IOError):...

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