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Diffstat (limited to '')
-rw-r--r-- | portato/backend/portage/settings.py | 55 |
1 files changed, 55 insertions, 0 deletions
diff --git a/portato/backend/portage/settings.py b/portato/backend/portage/settings.py new file mode 100644 index 0000000..5d3aef0 --- /dev/null +++ b/portato/backend/portage/settings.py @@ -0,0 +1,55 @@ +# -*- coding: utf-8 -*- +# +# File: portato/backend/portage/settings.py +# This file is part of the Portato-Project, a graphical portage-frontend. +# +# Copyright (C) 2006-2007 René 'Necoro' Neumann +# This is free software. You may redistribute copies of it under the terms of +# the GNU General Public License version 2. +# There is NO WARRANTY, to the extent permitted by law. +# +# Written by René 'Necoro' Neumann <necoro@necoro.net> + +import os +import portage +from threading import Lock + +class PortageSettings: + """Encapsulation of the portage settings. + + @ivar settings: portage settings + @ivar settingslock: a simple Lock + @ivar trees: a dictionary of the trees + @ivar porttree: shortcut to C{trees[root]["porttree"]} + @ivar vartree: shortcut to C{trees[root]["vartree"]} + @ivar virtuals: shortcut to C{trees[root]["virtuals"]}""" + + def __init__ (self): + """Initializes the instance. Calls L{load()}.""" + self.settingslock = Lock() + self.load() + + def load(self): + """(Re)loads the portage settings and sets the variables.""" + + kwargs = {} + for k, envvar in (("config_root", "PORTAGE_CONFIGROOT"), ("target_root", "ROOT")): + kwargs[k] = os.environ.get(envvar, None) + self.trees = portage.create_trees(trees=None, **kwargs) + + self.settings = self.trees["/"]["vartree"].settings + + for myroot in self.trees: + if myroot != "/": + self.settings = self.trees[myroot]["vartree"].settings + break + + self.settings.unlock() + + root = self.settings["ROOT"] + + self.porttree = self.trees[root]["porttree"] + self.vartree = self.trees[root]["vartree"] + self.virtuals = self.trees[root]["virtuals"] + + portage.settings = None # we use our own one ... |