Python Augeas.remove方法代码示例

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
def configure_chrony(ntp_servers, ntp_pool=None,
                     fstore=None, sysstore=None, debug=False):
    """
    This method only configures chrony client with ntp_servers or ntp_pool
    """

    module = "chrony"
    if sysstore:
        sysstore.backup_state(module, "enabled",
                              services.knownservices.chronyd.is_enabled())

    aug = Augeas(flags=Augeas.NO_LOAD | Augeas.NO_MODL_AUTOLOAD,
                 loadpath=paths.USR_SHARE_IPA_DIR)

    try:
        logger.debug("Configuring chrony")
        chrony_conf = os.path.abspath(paths.CHRONY_CONF)
        aug.transform(module, chrony_conf)  # loads chrony lens file
        aug.load()  # loads augeas tree
        # augeas needs to prepend path with '/files'
        path = '/files{path}'.format(path=chrony_conf)

        # remove possible conflicting configuration of servers
        aug.remove('{}/server'.format(path))
        aug.remove('{}/pool'.format(path))
        aug.remove('{}/peer'.format(path))
        if ntp_pool:
            logger.debug("Setting server pool:")
            logger.debug("'%s'", ntp_pool)
            aug.set('{}/pool[last()+1]'.format(path), ntp_pool)
            aug.set('{}/pool[last()]/iburst'.format(path), None)

        if ntp_servers:
            logger.debug("Setting time servers:")
            for server in ntp_servers:
                aug.set('{}/server[last()+1]'.format(path), server)
                aug.set('{}/server[last()]/iburst'.format(path), None)
                logger.debug("'%s'", server)

        # backup oginal conf file
        logger.debug("Backing up '%s'", chrony_conf)
        __backup_config(chrony_conf, fstore)

        logger.debug("Writing configuration to '%s'", chrony_conf)
        aug.save()

        logger.info('Configuration of chrony was changed by installer.')
        configured = True

    except IOError:
        logger.error("Augeas failed to configure file %s", chrony_conf)
        configured = False
    except RuntimeError as e:
        logger.error("Configuration failed with: %s", e)
        configured = False
    finally:
        aug.close()

    tasks.restore_context(chrony_conf)
    return configured

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
def remove(path):
    '''
    Get matches for path expression

    CLI Example:

    .. code-block:: bash

        salt '*' augeas.remove /files/etc/sysctl.conf/net.ipv4.conf.all.log_martians
    '''
    aug = Augeas()
    ret = {'retval': False}
    try:
        count = aug.remove(path)
        aug.save()
        if count == -1:
            ret['error'] = 'Invalid node'
        else:
            ret['retval'] = True
    except (RuntimeError, IOError) as err:
        ret['error'] = str(err)

    ret['count'] = count

    return ret

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
    def rm(self,entryPath,param='',hierarchy='/files'):
        """Delete a parameter (and all its children) in a config. file,
with the help of Augeas, a configuration API (cf http://augeas.net)"""
        try:
            from augeas import Augeas
            aug=Augeas()
        except Exception, e: return str(e)

        path=(hierarchy+entryPath.rstrip('/')+'/'+param).rstrip('/')
        
        try:
            result=aug.remove(path)
            #aug.close()
        except Exception, e: return str(e)
        # Here is a little workaround for a bug in save for augeas.
        # In the future this should not be necessary anymore. 
        try:
            aug.save()
        except:
            pass
        # End of workaround
        try:
            aug.save()
        except Exception, e: return str(e)
        if result == -1:
            msg = 'Invalid node'
        else:
            msg = repr(result)+' node(s) removed.'
        return msg 

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
def remove(path):
    """
    Get matches for path expression

    CLI Example::

        salt '*' augeas.remove /files/etc/sysctl.conf/net.ipv4.conf.all.log_martians
    """
    from augeas import Augeas

    aug = Augeas()

    ret = {"retval": False}
    try:
        count = aug.remove(path)
        aug.save()
        if count == -1:
            ret["error"] = "Invalid node"
        else:
            ret["retval"] = True
    except (RuntimeError, IOError) as err:
        ret["error"] = str(err)

    ret["count"] = count

    return ret

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
def remove(name, values):
    ret = {"name": name, "result": True, "changes": {}, "comment": ""}

    from augeas import Augeas

    if len(values) < 1:
        ret["comment"] = "No values given"
        ret["result"] = False
        return ret

    if __opts__["test"]:
        aug = Augeas(flags=Augeas.SAVE_NEWFILE)
        sfn = name
        dfn = "%s.augnew" % name
    else:
        aug = Augeas(flags=Augeas.SAVE_BACKUP)
        sfn = "%s.augsave" % name
        dfn = name

    if not os.path.isfile(name):
        ret["comment"] = "Unable to find file '%s'" % name
        ret["result"] = False
        return ret

    for value in values:
        try:
            path = "/files%s/%s" % (name, value)
            aug.remove(path)
        except TypeError as e:
            ret["comment"] = "Error removing, wrong type\n" "Expression was '%s'" % path
            ret["result"] = False
            return ret

    try:
        aug.save()
    except IOError as e:
        ret["comment"] = str(e)
        ret["result"] = False
        return ret

    ret.update(_resolve_changes(sfn, dfn))
    return ret

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
    def __disable_mod_ssl_ocsp(self):
        aug = Augeas(flags=Augeas.NO_LOAD | Augeas.NO_MODL_AUTOLOAD)

        aug.set('/augeas/load/Httpd/lens', 'Httpd.lns')
        aug.set('/augeas/load/Httpd/incl', paths.HTTPD_SSL_CONF)
        aug.load()

        path = '/files{}/VirtualHost'.format(paths.HTTPD_SSL_CONF)
        ocsp_path = '{}/directive[.="{}"]'.format(path, OCSP_DIRECTIVE)
        ocsp_arg = '{}/arg'.format(ocsp_path)
        ocsp_comment = '{}/#comment[.="{}"]'.format(path, OCSP_DIRECTIVE)

        ocsp_dir = aug.get(ocsp_path)

        # there is SSLOCSPEnable directive in nss.conf file, comment it
        # otherwise just do nothing
        if ocsp_dir is not None:
            ocsp_state = aug.get(ocsp_arg)
            aug.remove(ocsp_arg)
            aug.rename(ocsp_path, '#comment')
            aug.set(ocsp_comment, '{} {}'.format(OCSP_DIRECTIVE, ocsp_state))
            aug.save()

# 需要导入模块: from augeas import Augeas [as 别名]
# 或者: from augeas.Augeas import remove [as 别名]
class LVMConfig(object):

    def __init__(self, path="/etc/lvm/lvm.conf"):
        self.path = path

        # Augeas loads by default tons of unneeded lenses and configuration
        # files. On my test host, it fails to load, trying to read my 500 MiB
        # /etc/lvm/archive/.
        #
        # These are the standard LVM lens includes:
        # /augeas/load/LVM/incl[1] /etc/lvm/lvm.conf
        # /augeas/load/LVM/incl[2] /etc/lvm/backup/*
        # /augeas/load/LVM/incl[3] /etc/lvm/archive/*.vg
        #
        # We need only the first entry to work with lvm.conf. Using customized
        # load setup, as explained in
        # https://github.com/hercules-team/augeas/wiki/Loading-specific-files
        #
        # Removing the archive and backup entries, we can load augeas in 0.7
        # seconds on my test vm. Removing all other lenses shorten the time to
        # 0.04 seconds.

        log.debug("Loading LVM configuration from %r", path)
        self.aug = Augeas(flags=Augeas.NO_MODL_AUTOLOAD | Augeas.SAVE_BACKUP)
        self.aug.add_transform("lvm.lns", [path])
        self.aug.load()

    # Context manager interface

    def __enter__(self):
        return self

    def __exit__(self, t, v, tb):
        try:
            self.close()
        except Exception as e:
            # Caller succeeded, raise the close error.
            if t is None:
                raise
            # Caller has failed, do not hide the original error.
            log.exception("Error closing %s: %s" % (self, e))

    # Accessing list of strings

    def getlist(self, section, option):
        pat = "/files%s/%s/dict/%s/list/*/str" % (self.path, section, option)
        matches = self.aug.match(pat)
        if not matches:
            return None  # Cannot store/read empty list
        return [self.aug.get(m) for m in matches]

    def setlist(self, section, option, value):
        log.debug("Setting %s/%s to %s", section, option, value)
        opt_path = "/files%s/%s/dict/%s" % (self.path, section, option)
        self.aug.remove(opt_path)
        item_path = opt_path + "/list/%d/str"
        for i, item in enumerate(value, 1):
            self.aug.set(item_path % i, item)

    # Accessing flat values (int, string)

    def getint(self, section, option):
        val = self._get_flat(section, option, "int")
        return int(val) if val is not None else None

    def setint(self, section, option, value):
        self._set_flat(section, option, "int", str(value))

    def getstr(self, section, option):
        return self._get_flat(section, option, "str")

    def setstr(self, section, option, value):
        self._set_flat(section, option, "str", value)

    def _get_flat(self, section, option, opt_type):
        path = self._flat_path(section, option, opt_type)
        return self.aug.get(path)

    def _set_flat(self, section, option, opt_type, value):
        log.debug("Setting %s/%s to %r", section, option, value)
        path = self._flat_path(section, option, opt_type)
        return self.aug.set(path, value)

    def _flat_path(self, section, option, opt_type):
        return "/files%s/%s/dict/%s/%s" % (
            self.path, section, option, opt_type)

    # Removing options

    def remove(self, section, option):
        log.debug("Removing %s/%s", section, option)
        path = "/files%s/%s/dict/%s" % (self.path, section, option)
        self.aug.remove(path)

    # File operations

    def save(self):
        log.info("Saving new LVM configuration to %r, previous configuration "
                 "saved to %r",
                 self.path, self.path + ".augsave")
#.........这里部分代码省略.........