Imported Debian patch 4.0.5-6~numeezy

ipapython/install/common.py

@@ -1,115 +0,0 @@
-#
-# Copyright (C) 2015  FreeIPA Contributors see COPYING for license
-#
-
-"""
-Common stuff.
-"""
-
-import traceback
-
-from . import core
-from .util import from_
-
-__all__ = ['step', 'Installable', 'Interactive', 'Continuous', 'installer',
-           'uninstaller']
-
-
-def step():
-    def decorator(func):
-        cls = core.Component(Step)
-        cls._installer = staticmethod(func)
-        return cls
-
-    return decorator
-
-
-class Installable(core.Configurable):
-    """
-    Configurable which does install or uninstall.
-    """
-
-    uninstalling = core.Property(False)
-
-    def _get_components(self):
-        components = super(Installable, self)._get_components()
-        if self.uninstalling:
-            components = reversed(list(components))
-        return components
-
-    def _configure(self):
-        if self.uninstalling:
-            return self._uninstall()
-        else:
-            return self._install()
-
-    def _install(self):
-        assert not hasattr(super(Installable, self), '_install')
-
-        return super(Installable, self)._configure()
-
-    def _uninstall(self):
-        assert not hasattr(super(Installable, self), '_uninstall')
-
-        return super(Installable, self)._configure()
-
-
-class Step(Installable):
-    @property
-    def parent(self):
-        raise AttributeError('parent')
-
-    def _install(self):
-        for nothing in self._installer(self.parent):
-            yield from_(super(Step, self)._install())
-
-    @staticmethod
-    def _installer(obj):
-        yield
-
-    def _uninstall(self):
-        for nothing in self._uninstaller(self.parent):
-            yield from_(super(Step, self)._uninstall())
-
-    @staticmethod
-    def _uninstaller(obj):
-        yield
-
-    @classmethod
-    def uninstaller(cls, func):
-        cls._uninstaller = staticmethod(func)
-        return cls
-
-
-class Interactive(core.Configurable):
-    interactive = core.Property(False)
-
-
-class Continuous(core.Configurable):
-    def _handle_exception(self, exc_info):
-        try:
-            super(Continuous, self)._handle_exception(exc_info)
-        except BaseException as e:
-            self.log.debug(traceback.format_exc())
-            if isinstance(e, Exception):
-                self.log.error("%s", e)
-
-
-def installer(cls):
-    class Installer(cls, Installable):
-        def __init__(self, **kwargs):
-            super(Installer, self).__init__(uninstalling=False,
-                                            **kwargs)
-    Installer.__name__ = 'installer({0})'.format(cls.__name__)
-
-    return Installer
-
-
-def uninstaller(cls):
-    class Uninstaller(Continuous, cls, Installable):
-        def __init__(self, **kwargs):
-            super(Uninstaller, self).__init__(uninstalling=True,
-                                              **kwargs)
-    Uninstaller.__name__ = 'uninstaller({0})'.format(cls.__name__)
-
-    return Uninstaller