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How to use start_master_ssh method in autotest

Best Python code snippet using autotest_python

abstract_ssh.py

Source:abstract_ssh.py

...181                            transforming them into files/dirs on copy182        Raiseds:183            the scp command failed184        """185        self.start_master_ssh()186        if isinstance(source, basestring):187            source = [source]188        dest = os.path.abspath(dest)189        try_scp = True190        if try_scp:191            if delete_dest and os.path.isdir(dest):192                shutil.rmtree(dest)193                os.mkdir(dest)194            remote_source = self._make_rsync_compatible_source(source, False)195            if remote_source:196                remote_source = self._encode_remote_paths(remote_source,197                                                escape=False)198                local_dest = utils.sh_escape(dest)199                scp = self._make_scp_cmd([remote_source], local_dest)200                try:201                    utils.run(scp)202                except error.CmdError, e:203                    raise error.ServeRunError(e.args[0], e.args[1])204        if not preserve_perm:205            # have no way to tell scp to not try to preserve the permssions so206            # set them after copy instead.207            # for rsync we could use "--no-p --chmod=ugo-rmX" but those208            # options are only in veryrecent rsync versions209            self._set_umask_perms = (dest)210    def send_file(self, source, dest, delete_dest=False,211            preserve_symlinks=False):212        """213        Copy files from a local path to the remote host.214        """215        self.start_master_ssh()216        if isinstance(source, basestring):217            source_is_dir = os.path.isdir(source)218            source = [source]219        remote_dest = self._encode_remote_paths([dest])220        # if rsync is diabled or fails, try scp221        try_scp = True222        if try_scp:223            # scp has no equivalent to --delete, just drop the entire dest dir224            if delete_dest:225                dest_exists = False226                try:227                    self.run("test -x %s" % dest)228                    dest_exists = True229                except error.ServRunError:230                    pass231                dest_is_dir = False232                if dest_exists:233                    try:234                        self.run("test -d %s" % dest)235                        dest_is_dir = True236                    except error.ServRunError:237                        pass238                # if there is a list of more than one path, destination *has*239                # to be a dir.It therr's a single path being transferred and240                # it is a dir, the destination also has to be a dir241                if len(source) > 1 and source_is_dir:242                    dest_is_dir = True243                if dest_exists and dest_is_dir:244                    cmd = "rm -fr %s && mkdir %s" % (dest, dest)245                elif not dest_exists and dest_is_dir:246                    cmd = "mkdir %s" % dest247                    self.run(cmd)248            local_sources = self._make_rsync_compatible_source(source, True)249            if local_sources:250                scp = self._make_scp_cmd(local_sources, remote_dest)251                try:252                    utils.run(scp)   # utils.run253                except error.CmdError, e:254                    raise error.ServRunError(e.args[0], e.args[1])255    def ssh_ping(self, timeout=60):256        try:257            self.run("true", timeout=timeout, connect_timeout=timeout)258        except error.ServSSHTimeout:259            msg = "Host (ssh) verify timed out (timeout = %d)" % timeout260            raise error.ServSSHTimeout(msg)261        except error.ServSSHPermissionDeniedError:262            raise263        except error.ServRunError, e:264            raise error.ServSSHPingHostError(e.description + '\n' +265                    repr(e.result_obj))266    def is_up(self):267        """268        Check if the remote host is up.269        """270        try:271            self.ssh_ping()272        except error.ServRunError:273            return False274        else:275            return True276    def verify_connectivity(self):277        super(AbstractSSHHost, self).verify_connectivity()278        logging.info('pinging host ' + self.hostname)279        self.ssh_ping()280        logging.info("Host (ssh) %s is alive", self.hostname)281        if self.is_shutting_down():282            raise error.ServHostIsShuttingDownError("Host is shutting down")283    def close(self):284        super(AbstractSSHHost, self).close()285        self._cleanup_master_ssh()286        os.remove(self.known_hosts_file)287    def _cleanup_master_ssh(self):288        """289        Release all resources (process, temporary directory) used by an active290        master SSH connection.291        """292        if self.master_ssh_job is not None:293            # utils.nuke_subprocess294            utils.nuke_subprocess(self.master_ssh_job.sp)295            self.master_ssh_job = None296        # remove the temporary directory for the master SSH socket297        if self.master_ssh_tempdir is not None:298            self.master_ssh_tempdir.clean()299            self.master_ssh_tmepdir = None300            self.master_ssh_option = ''301    def start_master_ssh(self):302        """303        Called whenever a slave SSH connection needs to be intiated.304        If the master SSH support is enabled and a master SSH connection is not305        active already, start a new one in the backgroud.306        """307        if not enable_master_ssh:308            return309        # if a previously started master SSH connection is not running anymore310        # it needs to be cleaned up and then restarted.311        if self.master_ssh_job is not None:312            if self.master_ssh_job.sp.poll() is not None:313                logging.info("Master ssh connection to %s is down.",314                        self.hostname)315                self._cleanup_master_ssh()...

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