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def get_flags_from_package_conf(conf, atom): ''' Get flags for a given package or DEPEND atom. Warning: This only works if the configuration files tree is in the correct format (the one enforced by enforce_nice_config) CLI Example: .. code-block:: bash salt '*' portage_config.get_flag...
def has_flag(conf, atom, flag): ''' Verify if the given package or DEPEND atom has the given flag. Warning: This only works if the configuration files tree is in the correct format (the one enforced by enforce_nice_config) CLI Example: .. code-block:: bash salt '*' portage_config.has_...
def get_missing_flags(conf, atom, flags): ''' Find out which of the given flags are currently not set. CLI Example: .. code-block:: bash salt '*' portage_config.get_missing_flags use salt "['ldap', '-libvirt', 'openssl']" ''' new_flags = [] for flag in flags: if not has_fla...
def is_present(conf, atom): ''' Tell if a given package or DEPEND atom is present in the configuration files tree. Warning: This only works if the configuration files tree is in the correct format (the one enforced by enforce_nice_config) CLI Example: .. code-block:: bash salt '*'...
def get_iuse(cp): ''' .. versionadded:: 2015.8.0 Gets the current IUSE flags from the tree. @type: cpv: string @param cpv: cat/pkg @rtype list @returns [] or the list of IUSE flags ''' cpv = _get_cpv(cp) try: # aux_get might return dupes, so run them through set() to re...
def get_installed_use(cp, use="USE"): ''' .. versionadded:: 2015.8.0 Gets the installed USE flags from the VARDB. @type: cp: string @param cp: cat/pkg @type use: string @param use: 1 of ["USE", "PKGUSE"] @rtype list @returns [] or the list of IUSE flags ''' portage = _get_p...
def filter_flags(use, use_expand_hidden, usemasked, useforced): ''' .. versionadded:: 2015.8.0 Filter function to remove hidden or otherwise not normally visible USE flags from a list. @type use: list @param use: the USE flag list to be filtered. @type use_expand_hidden: list @param u...
def get_all_cpv_use(cp): ''' .. versionadded:: 2015.8.0 Uses portage to determine final USE flags and settings for an emerge. @type cp: string @param cp: eg cat/pkg @rtype: lists @return use, use_expand_hidden, usemask, useforce ''' cpv = _get_cpv(cp) portage = _get_portage() ...
def get_cleared_flags(cp): ''' .. versionadded:: 2015.8.0 Uses portage for compare use flags which is used for installing package and use flags which now exist int /etc/portage/package.use/ @type cp: string @param cp: eg cat/pkg @rtype: tuple @rparam: tuple with two lists - list of use...
def is_changed_uses(cp): ''' .. versionadded:: 2015.8.0 Uses portage for determine if the use flags of installed package is compatible with use flags in portage configs. @type cp: string @param cp: eg cat/pkg ''' cpv = _get_cpv(cp) i_flags, conf_flags = get_cleared_flags(cpv) f...
def active(): ''' List existing device-mapper device details. ''' ret = {} # TODO: This command should be extended to collect more information, such as UUID. devices = __salt__['cmd.run_stdout']('dmsetup ls --target crypt') out_regex = re.compile(r'(?P<devname>\w+)\W+\((?P<major>\d+), (?P<mi...
def crypttab(config='/etc/crypttab'): ''' List the contents of the crypttab CLI Example: .. code-block:: bash salt '*' cryptdev.crypttab ''' ret = {} if not os.path.isfile(config): return ret with salt.utils.files.fopen(config) as ifile: for line in ifile: ...
def rm_crypttab(name, config='/etc/crypttab'): ''' Remove the named mapping from the crypttab. If the described entry does not exist, nothing is changed, but the command succeeds by returning ``'absent'``. If a line is removed, it returns ``'change'``. CLI Example: .. code-block:: bash ...
def set_crypttab( name, device, password='none', options='', config='/etc/crypttab', test=False, match_on='name'): ''' Verify that this device is represented in the crypttab, change the device to match the name passed, or add the name if it is not pres...
def open(name, device, keyfile): ''' Open a crypt device using ``cryptsetup``. The ``keyfile`` must not be ``None`` or ``'none'``, because ``cryptsetup`` will otherwise ask for the password interactively. CLI Example: .. code-block:: bash salt '*' cryptdev.open foo /dev/sdz1 /path/to/...
def present(name, auth=None, **kwargs): ''' Ensure domain exists and is up-to-date name Name of the domain domain The name or id of the domain enabled Boolean to control if domain is enabled description An arbitrary description of the domain password ...
def present(name, protocol=None, service_address=None, server_address=None, packet_forward_method='dr', weight=1 ): ''' Ensure that the named service is present. name The LVS server name protocol The service protoco...
def absent(name, protocol=None, service_address=None, server_address=None): ''' Ensure the LVS Real Server in specified service is absent. name The name of the LVS server. protocol The service protocol(only support ``tcp``, ``udp`` and ``fwmark`` service). service_address ...
def present(name, passwd, database=None, user=None, password=None, host=None, port=None): ''' Ensure that the cluster admin or database user is present. name The name of the user to manage passwd The password of th...
def list_pkgs(versions_as_list=False, **kwargs): ''' List the packages currently installed as a dict:: {'<package_name>': '<version>'} CLI Example: .. code-block:: bash salt '*' pkg.list_pkgs ''' versions_as_list = salt.utils.data.is_true(versions_as_list) # not yet imple...
def install(name=None, pkgs=None, sources=None, **kwargs): ''' Install the passed package Return a dict containing the new package names and versions:: {'<package>': {'old': '<old-version>', 'new': '<new-version>'}} CLI Example, Install one package: .. code-block::...
def remove(name=None, pkgs=None, purge=False, **kwargs): ''' Remove a single package with pkg_delete Multiple Package Options: pkgs A list of packages to delete. Must be passed as a python list. The ``name`` parameter will be ignored if this option is passed. .. versionadded:: 0.1...
def purge(name=None, pkgs=None, **kwargs): ''' Remove a package and extra configuration files. name The name of the package to be deleted. Multiple Package Options: pkgs A list of packages to delete. Must be passed as a python list. The ``name`` parameter will be ignored ...
def upgrade(name=None, pkgs=None, **kwargs): ''' Run a full package upgrade (``pkg_add -u``), or upgrade a specific package if ``name`` or ``pkgs`` is provided. ``name`` is ignored when ``pkgs`` is specified. Returns a dictionary containing the changes: .. versionadded:...
def present(name, pipeline_objects=None, pipeline_objects_from_pillars='boto_datapipeline_pipeline_objects', parameter_objects=None, parameter_objects_from_pillars='boto_datapipeline_parameter_objects', parameter_values=None, parameter_values_from_pillars='bot...
def _pipeline_present_with_definition(name, expected_pipeline_objects, expected_parameter_objects, expected_parameter_values, region, key, keyid, profile): ''' Return true if the pipeline exists and...
def _cleaned(_pipeline_objects): """Return standardized pipeline objects to be used for comparing Remove year, month, and day components of the startDateTime so that data pipelines with the same time of day but different days are considered equal. """ pipeline_objects = copy.deepcopy(_pipeline_...
def _recursive_compare(v1, v2): ''' Return v1 == v2. Compares list, dict, recursively. ''' if isinstance(v1, list): if v2 is None: v2 = [] if len(v1) != len(v2): return False v1.sort(key=_id_or_key) v2.sort(key=_id_or_key) for x, y in zip(v...
def _id_or_key(list_item): ''' Return the value at key 'id' or 'key'. ''' if isinstance(list_item, dict): if 'id' in list_item: return list_item['id'] if 'key' in list_item: return list_item['key'] return list_item
def _diff(old_pipeline_definition, new_pipeline_definition): ''' Return string diff of pipeline definitions. ''' old_pipeline_definition.pop('ResponseMetadata', None) new_pipeline_definition.pop('ResponseMetadata', None) diff = salt.utils.data.decode(difflib.unified_diff( salt.utils.jso...
def _standardize(structure): ''' Return standardized format for lists/dictionaries. Lists of dictionaries are sorted by the value of the dictionary at its primary key ('id' or 'key'). OrderedDict's are converted to basic dictionaries. ''' def mutating_helper(structure): if isinstanc...
def _pipeline_objects(pipeline_objects_from_pillars, pipeline_object_overrides): ''' Return a list of pipeline objects that compose the pipeline pipeline_objects_from_pillars The pillar key to use for lookup pipeline_object_overrides Pipeline objects to use. Will override objects read ...
def _parameter_objects(parameter_objects_from_pillars, parameter_object_overrides): ''' Return a list of parameter objects that configure the pipeline parameter_objects_from_pillars The pillar key to use for lookup parameter_object_overrides Parameter objects to use. Will override obje...
def _parameter_values(parameter_values_from_pillars, parameter_value_overrides): ''' Return a dictionary of parameter values that configure the pipeline parameter_values_from_pillars The pillar key to use for lookup parameter_value_overrides Parameter values to use. Will override value...
def _dict_to_list_ids(objects): ''' Convert a dictionary to a list of dictionaries, where each element has a key value pair {'id': key}. This makes it easy to override pillar values while still satisfying the boto api. ''' list_with_ids = [] for key, value in six.iteritems(objects): ...
def _properties_from_dict(d, key_name='key'): ''' Transforms dictionary into pipeline object properties. The output format conforms to boto's specification. Example input: { 'a': '1', 'b': { 'ref': '2' }, } Example output: ...
def absent(name, region=None, key=None, keyid=None, profile=None): ''' Ensure a pipeline with the service_name does not exist name Name of the service to ensure a data pipeline does not exist for. region Region to connect to. key Secret key to be used. keyid A...
def deserialize(stream_or_string, **options): ''' Deserialize any string or stream like object into a Python data structure. :param stream_or_string: stream or string to deserialize. :param options: options given to lower json/simplejson module. ''' try: if not isinstance(stream_or_str...
def serialize(obj, **options): ''' Serialize Python data to JSON. :param obj: the data structure to serialize :param options: options given to lower json/simplejson module. ''' try: if 'fp' in options: return salt.utils.json.dump(obj, _json_module=_json, **options) ...
def present(name, character_set=None, collate=None, **connection_args): ''' Ensure that the named database is present with the specified properties name The name of the database to manage ''' ret = {'name': name, 'changes': {}, 'result': True, 'comment': 'Da...
def absent(name, **connection_args): ''' Ensure that the named database is absent name The name of the database to remove ''' ret = {'name': name, 'changes': {}, 'result': True, 'comment': ''} #check if db exists and remove it if __salt__['mysql.db_...
def _get_net_runner_opts(): ''' Return the net.find runner options. ''' runner_opts = __opts__.get('runners', {}).get('net.find', {}) return { 'target': runner_opts.get('target', _DEFAULT_TARGET), 'expr_form': runner_opts.get('expr_form', _DEFAULT_EXPR_FORM), 'ignore_interfac...
def _get_mine(fun): ''' Return the mine function from all the targeted minions. Just a small helper to avoid redundant pieces of code. ''' if fun in _CACHE and _CACHE[fun]: return _CACHE[fun] net_runner_opts = _get_net_runner_opts() _CACHE[fun] = __salt__['mine.get'](net_runner_opts....
def _display_runner(rows, labels, title, display=_DEFAULT_DISPLAY): ''' Display or return the rows. ''' if display: net_runner_opts = _get_net_runner_opts() if net_runner_opts.get('outputter') == 'table': ret = salt.output.out_format({'rows': rows, 'labels': labels}, ...
def _find_interfaces_ip(mac): ''' Helper to search the interfaces IPs using the MAC address. ''' try: mac = napalm_helpers.convert(napalm_helpers.mac, mac) except AddrFormatError: return ('', '', []) all_interfaces = _get_mine('net.interfaces') all_ipaddrs = _get_mine('net.i...
def _find_interfaces_mac(ip): # pylint: disable=invalid-name ''' Helper to get the interfaces hardware address using the IP Address. ''' all_interfaces = _get_mine('net.interfaces') all_ipaddrs = _get_mine('net.ipaddrs') for device, device_ipaddrs in six.iteritems(all_ipaddrs): if not ...
def interfaces(device=None, interface=None, title=None, pattern=None, ipnet=None, best=True, display=_DEFAULT_DISPLAY): ''' Search for interfaces details in the following mine functions: - net.interfaces - net.ipa...
def findarp(device=None, interface=None, mac=None, ip=None, display=_DEFAULT_DISPLAY): # pylint: disable=invalid-name ''' Search for entries in the ARP tables using the following mine functions: - net.arp Optional arguments: device Return i...
def findmac(device=None, mac=None, interface=None, vlan=None, display=_DEFAULT_DISPLAY): ''' Search in the MAC Address tables, using the following mine functions: - net.mac Optional arguments: device Return interface data from a certain device only. interface Return data sele...
def lldp(device=None, interface=None, title=None, pattern=None, chassis=None, display=_DEFAULT_DISPLAY): ''' Search in the LLDP neighbors, using the following mine functions: - net.lldp Optional arguments: device Return interface data from a ce...
def find(addr, best=True, display=_DEFAULT_DISPLAY): ''' Search in all possible entities (Interfaces, MAC tables, ARP tables, LLDP neighbors), using the following mine functions: - net.mac - net.arp - net.lldp - net.ipaddrs - net.interfaces This function has the advantage that it k...
def multi_find(*patterns, **kwargs): ''' Execute multiple search tasks. This function is based on the `find` function. Depending on the search items, some information might overlap. Optional arguments: best: ``True`` Return only the best match with the interfaces IP networks wh...
def _recurmatch(path, aug): ''' Recursive generator providing the infrastructure for augtools print behavior. This function is based on test_augeas.py from Harald Hoyer <harald@redhat.com> in the python-augeas repository ''' if path: clean_path = path.rstrip('/*') yield...
def _lstrip_word(word, prefix): ''' Return a copy of the string after the specified prefix was removed from the beginning of the string ''' if six.text_type(word).startswith(prefix): return six.text_type(word)[len(prefix):] return word
def _check_load_paths(load_path): ''' Checks the validity of the load_path, returns a sanitized version with invalid paths removed. ''' if load_path is None or not isinstance(load_path, six.string_types): return None _paths = [] for _path in load_path.split(':'): if os.path...
def execute(context=None, lens=None, commands=(), load_path=None): ''' Execute Augeas commands .. versionadded:: 2014.7.0 CLI Example: .. code-block:: bash salt '*' augeas.execute /files/etc/redis/redis.conf \\ commands='["set bind 0.0.0.0", "set maxmemory 1G"]' context ...
def get(path, value='', load_path=None): ''' Get a value for a specific augeas path CLI Example: .. code-block:: bash salt '*' augeas.get /files/etc/hosts/1/ ipaddr path The path to get the value of value The optional value to get .. versionadded:: 2016.3.0 ...
def setvalue(*args): ''' Set a value for a specific augeas path CLI Example: .. code-block:: bash salt '*' augeas.setvalue /files/etc/hosts/1/canonical localhost This will set the first entry in /etc/hosts to localhost CLI Example: .. code-block:: bash salt '*' augeas....
def match(path, value='', load_path=None): ''' Get matches for path expression CLI Example: .. code-block:: bash salt '*' augeas.match /files/etc/services/service-name ssh path The path to match value The value to match on .. versionadded:: 2016.3.0 load_pa...
def remove(path, load_path=None): ''' Get matches for path expression CLI Example: .. code-block:: bash salt '*' augeas.remove \\ /files/etc/sysctl.conf/net.ipv4.conf.all.log_martians path The path to remove .. versionadded:: 2016.3.0 load_path A colon-s...
def ls(path, load_path=None): # pylint: disable=C0103 ''' List the direct children of a node CLI Example: .. code-block:: bash salt '*' augeas.ls /files/etc/passwd path The path to list .. versionadded:: 2016.3.0 load_path A colon-spearated list of directories ...
def tree(path, load_path=None): ''' Returns recursively the complete tree of a node CLI Example: .. code-block:: bash salt '*' augeas.tree /files/etc/ path The base of the recursive listing .. versionadded:: 2016.3.0 load_path A colon-spearated list of directori...
def list_installed(): ''' Return a list of all installed kernels. CLI Example: .. code-block:: bash salt '*' kernelpkg.list_installed ''' pkg_re = re.compile(r'^{0}-[\d.-]+-{1}$'.format( _package_prefix(), _kernel_type())) pkgs = __salt__['pkg.list_pkgs'](versions_as_list=...
def upgrade(reboot=False, at_time=None): ''' Upgrade the kernel and optionally reboot the system. reboot : False Request a reboot if a new kernel is available. at_time : immediate Schedule the reboot at some point in the future. This argument is ignored if ``reboot=False``. See...
def remove(release): ''' Remove a specific version of the kernel. release The release number of an installed kernel. This must be the entire release number as returned by :py:func:`~salt.modules.kernelpkg_linux_apt.list_installed`, not the package name. CLI Example: .. cod...
def cleanup(keep_latest=True): ''' Remove all unused kernel packages from the system. keep_latest : True In the event that the active kernel is not the latest one installed, setting this to True will retain the latest kernel package, in addition to the active one. If False, all kernel ...
def _cmp_version(item1, item2): ''' Compare function for package version sorting ''' vers1 = _LooseVersion(item1) vers2 = _LooseVersion(item2) if vers1 < vers2: return -1 if vers1 > vers2: return 1 return 0
def string(name, value, expire=None, expireat=None, **connection_args): ''' Ensure that the key exists in redis with the value specified name Redis key to manage value Data to persist in key expire Sets time to live for key in seconds expireat Sets expiration ...
def absent(name, keys=None, **connection_args): ''' Ensure key absent from redis name Key to ensure absent from redis keys list of keys to ensure absent, name will be ignored if this is used ''' ret = {'name': name, 'changes': {}, 'result': True, ...
def slaveof(name, sentinel_host=None, sentinel_port=None, sentinel_password=None, **connection_args): ''' Set this redis instance as a slave. .. versionadded: 2016.3.0 name Master to make this a slave of sentinel_host Ip of the sentinel to check for the master sentinel_port ...
def __main(): '''This module can also be run directly for testing Args: detail|list : Provide ``detail`` or version ``list``. system|system+user: System installed and System and User installs. ''' if len(sys.argv) < 3: sys.stderr.write('usage: {0} <detail|list> <syste...
def __squid_to_guid(self, squid): ''' Squished GUID (SQUID) to GUID. A SQUID is a Squished/Compressed version of a GUID to use up less space in the registry. Args: squid (str): Squished GUID. Returns: str: the GUID if a valid SQUID provided. ...
def __one_equals_true(value): ''' Test for ``1`` as a number or a string and return ``True`` if it is. Args: value: string or number or None. Returns: bool: ``True`` if 1 otherwise ``False``. ''' if isinstance(value, six.integer_types) and value ...
def __reg_query_value(handle, value_name): ''' Calls RegQueryValueEx If PY2 ensure unicode string and expand REG_EXPAND_SZ before returning Remember to catch not found exceptions when calling. Args: handle (object): open registry handle. value_name (str)...
def install_time(self): ''' Return the install time, or provide an estimate of install time. Installers or even self upgrading software must/should update the date held within InstallDate field when they change versions. Some installers do not set ``InstallDate`` at all so we us...
def get_install_value(self, value_name, wanted_type=None): ''' For the uninstall section of the registry return the name value. Args: value_name (str): Registry value name. wanted_type (str): The type of value wanted if the type does not match ...
def get_product_value(self, value_name, wanted_type=None): ''' For the product section of the registry return the name value. Args: value_name (str): Registry value name. wanted_type (str): The type of value wanted if the type does not match ...
def upgrade_code(self): ''' For installers which follow the Microsoft Installer standard, returns the ``Upgrade code``. Returns: value (str): ``Upgrade code`` GUID for installed software. ''' if not self.__squid: # Must have a valid squid for an u...
def list_patches(self): ''' For installers which follow the Microsoft Installer standard, returns a list of patches applied. Returns: value (list): Long name of the patch. ''' if not self.__squid: # Must have a valid squid for an upgrade code to e...
def version_binary(self): ''' Return version number which is stored in binary format. Returns: str: <major 0-255>.<minior 0-255>.<build 0-65535> or None if not found ''' # Under MSI 'Version' is a 'REG_DWORD' which then sets other registry # values like Displ...
def pkg_version_list(self, pkg_id): ''' Returns information on a package. Args: pkg_id (str): Package Id of the software/component. Returns: list: List of version numbers installed. ''' pkg_data = self.__reg_software.get(pkg_id, None) if ...
def __sid_to_username(sid): ''' Provided with a valid Windows Security Identifier (SID) and returns a Username Args: sid (str): Security Identifier (SID). Returns: str: Username in the format of username@realm or username@computer. ''' if sid is ...
def __software_to_pkg_id(self, publisher, name, is_component, is_32bit): ''' Determine the Package ID of a software/component using the software/component ``publisher``, ``name``, whether its a software or a component, and if its 32bit or 64bit archiecture. Args: pub...
def __version_capture_slp(self, pkg_id, version_binary, version_display, display_name): ''' This returns the version and where the version string came from, based on instructions under ``version_capture``, if ``version_capture`` is missing, it defaults to value of display-version. ...
def __collect_software_info(self, sid, key_software, use_32bit): ''' Update data with the next software found ''' reg_soft_info = RegSoftwareInfo(key_software, sid, use_32bit) # Check if the registry entry is a valid. # a) Cannot manage software without at least a displ...
def __get_software_details(self, user_pkgs): ''' This searches the uninstall keys in the registry to find a match in the sub keys, it will return a dict with the display name as the key and the version as the value .. sectionauthor:: Damon Atkins <https://github.com/damon-atkins>...
def enforce_types(key, val): ''' Force params to be strings unless they should remain a different type ''' non_string_params = { 'ssl_verify': bool, 'insecure_auth': bool, 'disable_saltenv_mapping': bool, 'env_whitelist': 'stringlist', 'env_blacklist': 'stringlist...
def _get_envs_from_ref_paths(self, refs): ''' Return the names of remote refs (stripped of the remote name) and tags which are map to the branches and tags. ''' def _check_ref(env_set, rname): ''' Add the appropriate saltenv(s) to the set ''' ...
def add_conf_overlay(cls, name): ''' Programmatically determine config value based on the desired saltenv ''' def _getconf(self, tgt_env='base'): strip_sep = lambda x: x.rstrip(os.sep) \ if name in ('root', 'mountpoint') \ else x if...
def check_root(self): ''' Check if the relative root path exists in the checked-out copy of the remote. Return the full path to that relative root if it does exist, otherwise return None. ''' # No need to pass an environment to self.root() here since per-saltenv #...
def clean_stale_refs(self): ''' Remove stale refs so that they are no longer seen as fileserver envs ''' cleaned = [] cmd_str = 'git remote prune origin' # Attempt to force all output to plain ascii english, which is what some parsing code # may expect. #...
def clear_lock(self, lock_type='update'): ''' Clear update.lk ''' lock_file = self._get_lock_file(lock_type=lock_type) def _add_error(errlist, exc): msg = ('Unable to remove update lock for {0} ({1}): {2} ' .format(self.url, lock_file, exc)) ...
def enforce_git_config(self): ''' For the config options which need to be maintained in the git config, ensure that the git config file is configured as desired. ''' git_config = os.path.join(self.gitdir, 'config') conf = salt.utils.configparser.GitConfigParser() ...
def fetch(self): ''' Fetch the repo. If the local copy was updated, return True. If the local copy was already up-to-date, return False. This function requires that a _fetch() function be implemented in a sub-class. ''' try: with self.gen_lock(lock_ty...
def _lock(self, lock_type='update', failhard=False): ''' Place a lock file if (and only if) it does not already exist. ''' try: fh_ = os.open(self._get_lock_file(lock_type), os.O_CREAT | os.O_EXCL | os.O_WRONLY) with os.fdopen(fh_, 'wb'):...
def lock(self): ''' Place an lock file and report on the success/failure. This is an interface to be used by the fileserver runner, so it is hard-coded to perform an update lock. We aren't using the gen_lock() contextmanager here because the lock is meant to stay and not be ...
def gen_lock(self, lock_type='update', timeout=0, poll_interval=0.5): ''' Set and automatically clear a lock ''' if not isinstance(lock_type, six.string_types): raise GitLockError( errno.EINVAL, 'Invalid lock_type \'{0}\''.format(lock_type) ...
def env_is_exposed(self, tgt_env): ''' Check if an environment is exposed by comparing it against a whitelist and blacklist. ''' return salt.utils.stringutils.check_whitelist_blacklist( tgt_env, whitelist=self.saltenv_whitelist, blacklist=self....
def get_checkout_target(self): ''' Resolve dynamically-set branch ''' if self.role == 'git_pillar' and self.branch == '__env__': try: return self.all_saltenvs except AttributeError: # all_saltenvs not configured for this remote ...
def get_tree(self, tgt_env): ''' Return a tree object for the specified environment ''' if not self.env_is_exposed(tgt_env): return None tgt_ref = self.ref(tgt_env) if tgt_ref is None: return None for ref_type in self.ref_types: ...