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# -*- coding: utf-8 -*-
#
# File: portato/backend/portage/sets.py
# This file is part of the Portato-Project, a graphical portage-frontend.
#
# Copyright (C) 2008 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>
from __future__ import absolute_import, with_statement
import re
from .. import system
class Set(object):
def get_pkgs(self, key, is_regexp, masked, with_version, only_cpv):
raise NotImplementedError
def find (self, key, masked = False, with_version = True, only_cpv = False):
if key is None: key = ""
is_regexp = key == "" or ("*" in key and key[0] not in ("*","=","<",">","~","!"))
try:
t = self.get_pkgs(key, is_regexp, masked, with_version, only_cpv)
# catch the "ambigous package" Exception
except ValueError, e:
if isinstance(e[0], list):
t = set()
for cp in e[0]:
t.update(self.get_pkgs(cp, is_regexp, masked, with_version, only_cpv))
else:
raise
return t
class FilterSet (Set):
def get_list(self):
raise NotImplementedError
def get_pkgs (self, key, is_regexp, masked, with_version, only_cpv):
t = set()
for pkg in self.get_list():
if is_regexp:
if not re.match(key, pkg, re.I): continue
if not with_version:
t.add(portage_dep.dep_getkey(pkg))
t.add(system.find_best_match(pkg, only_cpv = True))
return t
class SystemSet (FilterSet):
def get_list(self):
for cp in system.settings.settings.packages:
if cp[0] == "*": yield cp[1:]
class WorldSet (FilterSet):
def get_list(self):
with open(portage.WORLD_FILE) as f:
for cp in f:
cp = cp.strip()
if cp and cp[0] != "#":
yield cp
class InstalledSet (Set):
def get_pkgs (self, key, is_regexp, masked, with_version, only_cpv):
if is_regexp:
if with_version:
t = system.settings.vartree.dbapi.cpv_all()
else:
t = system.settings.vartree.dbapi.cp_all()
if key:
t = filter(lambda x: re.match(key, x, re.I), t)
return set(t)
else:
return set(system.settings.vartree.dbapi.match(key))
class TreeSet (Set):
def get_pkgs (self, key, is_regexp, masked, with_version, only_cpv):
if is_regexp:
if with_version:
t = system.settings.porttree.dbapi.cpv_all()
else:
t = system.settings.porttree.dbapi.cp_all()
if key:
t = filter(lambda x: re.match(key, x, re.I), t)
elif masked:
t = system.settings.porttree.dbapi.xmatch("match-all", key)
else:
t = system.settings.porttree.dbapi.match(key)
return set(t)
class AllSet (Set):
def __init__ (self):
Set.__init__(self)
self.tree = TreeSet()
self.installed = InstalledSet()
def find (self, *args, **kwargs):
return self.tree.find(*args, **kwargs) | self.installed.find(*args, **kwargs)
class UninstalledSet (Set):
def __init__ (self):
Set.__init__(self)
self.all = AllSet()
self.installed = InstalledSet()
def find (self, *args, **kwargs):
return self.all.find(*args, **kwargs) - self.installed.find(*args, **kwargs)
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