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# R overlay -- package rule actions, modify dependencies / depres
# -*- coding: utf-8 -*-
# Copyright (C) 2013 André Erdmann <dywi@mailerd.de>
# Distributed under the terms of the GNU General Public License;
# either version 2 of the License, or (at your option) any later version.
import roverlay.util.dictwalk
import roverlay.util.namespace
import roverlay.util.objects
import roverlay.depres.depresult
import roverlay.packagerules.abstract.actions
class DepConfAccess ( roverlay.util.dictwalk.FixedKeyDictWalker ):
# ideally, use a data type that
# (a) drops duplicates
# (b) is ordered
DEFAULT_CONTAINER_TYPE = set
def __init__ ( self, keypath, virtual_key=None ):
super ( DepConfAccess, self ).__init__ ( keypath )
self.virtual_key = (
self.keypath[-1] if virtual_key is None else virtual_key
)
# --- end of __init__ (...) ---
def get_root ( self, p_info ):
if p_info.depconf is None:
p_info.depconf = dict()
return p_info.depconf
# --- end of get_root (...) ---
# --- end of DepConfAccess ---
class DependencyAction (
roverlay.packagerules.abstract.actions.PackageRuleAction
):
ACTION_KEYWORD = None
@classmethod
def from_namespace ( cls, namespace, keypath, *args, **kwargs ):
depconf_access = namespace.get_object ( DepConfAccess, keypath )
return namespace.get_object_v (
cls, ( depconf_access, ) + args, kwargs
)
# --- end of from_namespace (...) ---
def __init__ ( self, depconf_access, priority=1000 ):
super ( DependencyAction, self ).__init__ ( priority=priority )
self.depconf = depconf_access
# --- end of __init__ (...) ---
def get_action_keyword ( self ):
return self.__class__.ACTION_KEYWORD
# --- end of get_action_keyword (...) ---
def get_virtual_key ( self ):
key = str ( self.depconf.virtual_key )
return None if key == 'all' else key
# --- end of get_virtual_key (...) ---
@roverlay.util.objects.abstractmethod
def get_action_arg_str ( self ):
pass
# --- end of get_action_arg_str (...) ---
def gen_str ( self, level ):
action_keyword = self.get_action_keyword()
action_arg_str = self.get_action_arg_str()
virtual_key = self.get_virtual_key()
indent = level * self.INDENT
if virtual_key:
virtual_key = ' ' + virtual_key
else:
virtual_key = ''
if action_arg_str:
action_arg_str = ' \"' + action_arg_str + '\"'
else:
action_arg_str = ''
yield "{indent}{action_keyword}{virtual_key}{action_arg_str}".format (
indent=indent, action_keyword=action_keyword,
virtual_key=virtual_key, action_arg_str=action_arg_str
)
# --- end of gen_str (...) ---
# --- end of DependencyAction ---
class DependencyVarAction ( DependencyAction ):
CATEGORY_KEY = None
CONVERT_VALUE_TO_DEPRESULT = True
@classmethod
def from_namespace ( cls, namespace, deptype_key, value, *args, **kwargs ):
assert cls.CATEGORY_KEY is not None
depconf_access = namespace.get_object (
DepConfAccess, ( cls.CATEGORY_KEY, deptype_key )
)
if cls.CONVERT_VALUE_TO_DEPRESULT:
my_value = namespace.get_object_v (
roverlay.depres.depresult.ConstantDepResult, ( value, 50, 0 )
)
else:
my_value = value
return namespace.get_object_v (
cls, ( depconf_access, my_value ) + args, kwargs
)
# --- end of from_namespace (...) ---
# @classmethod
# def get_subclass (
# cls, action_keyword, category_key, name=None, doc=None
# ):
# class NewDependencyVarAction ( cls ):
# ACTION_KEYWORDS = action_keyword
# CATEGORY_KEY = category_key
# # --- end of NewDependencyVarAction ---
#
# if name is not None:
# NewDependencyVarAction.__name__ = name
# else:
# NewDependencyVarAction.__name__ = 'New' + cls.__name__
#
# if doc is not None:
# NewDependencyVarAction.__doc__ = doc
#
# return NewDependencyVarAction
# # --- end of get_subclass (...) ---
def __init__ ( self, depconf_access, value, priority=1000 ):
super ( DependencyVarAction, self ).__init__ (
depconf_access, priority=priority
)
self.value = value
# --- end of __init__ (...) ---
def get_action_arg_str ( self ):
return str ( self.value )
# --- end of get_action_arg_str (...) ---
def apply_action ( self, p_info ):
self.depconf.add_value ( self.value, p_info )
# --- end of apply_action (...) ---
# --- end of DependencyVarAction ---
class DependencyInjectAction ( DependencyVarAction ):
ACTION_KEYWORD = 'add'
CATEGORY_KEY = 'extra'
# --- end of DependencyInjectAction (...) ---
class DepStrIgnoreAction ( DependencyVarAction ):
CATEGORY_KEY = 'depres_ignore'
ACTION_KEYWORD = CATEGORY_KEY
CONVERT_VALUE_TO_DEPRESULT = False
# --- end of DepStrIgnoreAction ---
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