Python Packages.__str__方法代码示例

# 需要导入模块: from pykickstart.parser import Packages [as 别名]
# 或者: from pykickstart.parser.Packages import __str__ [as 别名]
class BaseHandler(KickstartObject):
    """Each version of kickstart syntax is provided by a subclass of this
       class.  These subclasses are what users will interact with for parsing,
       extracting data, and writing out kickstart files.  This is an abstract
       class.

       version -- The version this syntax handler supports.  This is set by
                  a class attribute of a BaseHandler subclass and is used to
                  set up the command dict.  It is for read-only use.
    """
    version = None

    def __init__(self, mapping=None, dataMapping=None, commandUpdates=None,
            dataUpdates=None, *args, **kwargs):
        """Create a new BaseHandler instance.  This method must be provided by
           all subclasses, but subclasses must call BaseHandler.__init__ first.

           mapping          -- A custom map from command strings to classes,
                               useful when creating your own handler with
                               special command objects.  It is otherwise unused
                               and rarely needed.  If you give this argument,
                               the mapping takes the place of the default one
                               and so must include all commands you want
                               recognized.
           dataMapping      -- This is the same as mapping, but for data
                               objects.  All the same comments apply.
           commandUpdates   -- This is similar to mapping, but does not take
                               the place of the defaults entirely.  Instead,
                               this mapping is applied after the defaults and
                               updates it with just the commands you want to
                               modify.
           dataUpdates      -- This is the same as commandUpdates, but for
                               data objects.


           Instance attributes:

           commands -- A mapping from a string command to a KickstartCommand
                       subclass object that handles it.  Multiple strings can
                       map to the same object, but only one instance of the
                       command object should ever exist.  Most users should
                       never have to deal with this directly, as it is
                       manipulated internally and called through dispatcher.
           currentLine -- The current unprocessed line from the input file
                          that caused this handler to be run.
           packages -- An instance of pykickstart.parser.Packages which
                       describes the packages section of the input file.
           platform -- A string describing the hardware platform, which is
                       needed only by system-config-kickstart.
           scripts  -- A list of pykickstart.parser.Script instances, which is
                       populated by KickstartParser.addScript and describes the
                       %pre/%pre-install/%post/%traceback script section of the
                       input file.
        """

        # We don't want people using this class by itself.
        if self.__class__ is BaseHandler:
            raise TypeError("BaseHandler is an abstract class.")

        KickstartObject.__init__(self, *args, **kwargs)

        # This isn't really a good place for these, but it's better than
        # everything else I can think of.
        self.scripts = []
        self.packages = Packages()
        self.platform = ""

        # These will be set by the dispatcher.
        self.commands = {}
        self.currentLine = ""

        # A dict keyed by an integer priority number, with each value being a
        # list of KickstartCommand subclasses.  This dict is maintained by
        # registerCommand and used in __str__.  No one else should be touching
        # it.
        self._writeOrder = {}

        self._registerCommands(mapping, dataMapping, commandUpdates, dataUpdates)

    def __str__(self):
        """Return a string formatted for output to a kickstart file."""
        retval = ""

        if self.platform != "":
            retval += "#platform=%s\n" % self.platform

        retval += "#version=%s\n" % versionToString(self.version)

        lst = list(self._writeOrder.keys())
        lst.sort()

        for prio in lst:
            for obj in self._writeOrder[prio]:
                obj_str = obj.__str__()
                if isinstance(obj_str, six.text_type) and not six.PY3:
                    obj_str = obj_str.encode("utf-8")
                retval += obj_str

        for script in self.scripts:
            script_str = script.__str__()
#.........这里部分代码省略.........

# 需要导入模块: from pykickstart.parser import Packages [as 别名]
# 或者: from pykickstart.parser.Packages import __str__ [as 别名]
class BaseHandler(KickstartHandler):
    """A base kickstart handler.

       Each version of kickstart syntax is provided by a subclass of this
       class. These subclasses are what users will interact with for parsing,
       extracting data, and writing out kickstart files.  This is an abstract
       class.
    """

    def __init__(self, mapping=None, dataMapping=None, commandUpdates=None,
                 dataUpdates=None, *args, **kwargs):
        """Create a new BaseHandler instance.  This method must be provided by
           all subclasses, but subclasses must call BaseHandler.__init__ first.

           mapping          -- A custom map from command strings to classes,
                               useful when creating your own handler with
                               special command objects.  It is otherwise unused
                               and rarely needed.  If you give this argument,
                               the mapping takes the place of the default one
                               and so must include all commands you want
                               recognized.
           dataMapping      -- This is the same as mapping, but for data
                               objects.  All the same comments apply.
           commandUpdates   -- This is similar to mapping, but does not take
                               the place of the defaults entirely.  Instead,
                               this mapping is applied after the defaults and
                               updates it with just the commands you want to
                               modify.
           dataUpdates      -- This is the same as commandUpdates, but for
                               data objects.


           Instance attributes:

           packages -- An instance of pykickstart.parser.Packages which
                       describes the packages section of the input file.
           platform -- A string describing the hardware platform, which is
                       needed only by system-config-kickstart.
           scripts  -- A list of pykickstart.parser.Script instances, which is
                       populated by KickstartParser.addScript and describes the
                       %pre/%pre-install/%post/%traceback script section of the
                       input file.
        """

        # We don't want people using this class by itself.
        if self.__class__ is BaseHandler:
            raise TypeError("BaseHandler is an abstract class.")

        KickstartHandler.__init__(self, *args, **kwargs)

        # This isn't really a good place for these, but it's better than
        # everything else I can think of.
        self.scripts = []
        self.packages = Packages()
        self.platform = ""

        # Any sections that we do not understand but want to prevent causing errors
        # are represented by a NullSection.  We want to preserve those on output, so
        # keep a list of their string representations here.  This is likely to change
        # in the future.  Don't rely on this exact implementation.
        self._null_section_strings = []

        self._registerCommands(mapping, dataMapping, commandUpdates, dataUpdates)

    def __str__(self):
        """Return a string formatted for output to a kickstart file."""
        retval = ""

        if self.platform:
            retval += "#platform=%s\n" % self.platform

        retval += "#version=%s\n" % versionToString(self.version)

        retval += KickstartHandler.__str__(self)

        for script in self.scripts:
            script_str = script.__str__()
            if isinstance(script_str, six.text_type) and not six.PY3:
                script_str = script_str.encode("utf-8")
            retval += script_str

        if self._null_section_strings:
            retval += "\n"

            for s in self._null_section_strings:
                retval += s

        retval += self.packages.__str__()

        return retval

    def _registerCommands(self, mapping=None, dataMapping=None, commandUpdates=None,
                          dataUpdates=None):
        if mapping == {} or mapping is None:
            from pykickstart.handlers.control import commandMap
            cMap = commandMap[self.version]
        else:
            cMap = mapping

        if dataMapping == {} or dataMapping is None:
#.........这里部分代码省略.........