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# Copyright 2007 Gentoo Foundation
# Distributed under the terms of the GNU General Public License v2
# $Id$
import os
from portage.const import PRIVATE_PATH, USER_CONFIG_PATH
from portage.exception import InvalidAtom
from portage.dep import isvalidatom, match_from_list, dep_getkey
OPERATIONS = ["merge", "unmerge"]
DEFAULT_SETS = ["world", "system", "everything", "security"] \
+["package_"+x for x in ["mask", "unmask", "use", "keywords"]]
class PackageSet(object):
# Set this to operations that are supported by your subclass. While
# technically there is no difference between "merge" and "unmerge" regarding
# package sets, the latter doesn't make sense for some sets like "system"
# or "security" and therefore isn't supported by them.
_operations = ["merge"]
def __init__(self, name):
self._name = name
self._atoms = set()
self._loaded = False
def supportsOperation(self, op):
if not op in OPERATIONS:
raise ValueError(op)
return op in self._operations
def getAtoms(self):
if not self._loaded:
# Order is important for the next two statements as load() may change
# _loaded to a more specific value for editable subclasses
self._loaded = True
self.load()
return self._atoms
def _setAtoms(self, atoms):
atoms = map(str.strip, atoms)
for a in atoms[:]:
if a == "":
atoms.remove(a)
elif not isvalidatom(a):
raise InvalidAtom(a)
self._atoms = atoms
def getName(self):
return self._name
def load(self):
# This method must be overwritten by subclasses
# Editable sets should use the value of self._mtime to determine if they
# need to reload themselves
raise NotImplementedError()
def containsCPV(self, cpv):
for a in self.getAtoms():
if match_from_list(a, cpv):
return True
return False
class EditablePackageSet(PackageSet):
def updateAtoms(self, atoms):
self.load()
self._atoms.update(atoms)
self.write()
def addAtom(self, atom):
self.updateAtoms([atom])
def removeAtom(self, atom):
self.load()
self._atoms.discard(atom)
self.write()
def removePackageAtoms(self, cp):
self.load()
for a in self.getAtoms():
if dep_getkey(a) == cp:
self._atoms.discard(a)
self.write()
def write(self):
# This method must be overwritten in subclasses that should be editable
raise NotImplementedError()
class InternalPackageSet(EditablePackageSet):
_operations = ["merge", "unmerge"]
def load(self):
pass
def write(self):
pass
def make_default_sets(configroot, root, profile_paths, settings=None,
vdbapi=None, portdbapi=None):
from portage.sets.files import StaticFileSet, ConfigFileSet
from portage.sets.profiles import PackagesSystemSet
from portage.sets.security import AffectedSet
from portage.sets.dbapi import EverythingSet
rValue = set()
rValue.add(StaticFileSet("world", os.path.join(root, PRIVATE_PATH, "world")))
for suffix in ["mask", "unmask", "keywords", "use"]:
myname = "package_"+suffix
myset = ConfigFileSet(myname, os.path.join(configroot, USER_CONFIG_PATH.lstrip(os.sep), "package."+suffix))
rValue.add(myset)
rValue.add(PackagesSystemSet("system", profile_paths))
if settings != None and portdbapi != None:
rValue.add(AffectedSet("security", settings, vdbapi, portdbapi))
else:
rValue.add(InternalPackageSet("security"))
if vdbapi != None:
rValue.add(EverythingSet("everything", vdbapi))
else:
rValue.add(InternalPackageSet("everything"))
return rValue
def make_extra_static_sets(configroot):
from portage.sets.files import StaticFileSet
rValue = set()
mydir = os.path.join(configroot, USER_CONFIG_PATH.lstrip(os.sep), "sets")
try:
mysets = os.listdir(mydir)
except (OSError, IOError):
return rValue
for myname in mysets:
if myname in DEFAULT_SETS:
continue
rValue.add(StaticFileSet(fname, os.path.join(mydir, myname)))
return rValue
def make_category_sets(portdbapi, settings, only_visible=True):
from portage.sets.dbapi import CategorySet
rValue = set()
for c in settings.categories:
rValue.add(CategorySet("category_%s" % c, c, portdbapi, only_visible=only_visible))
return rValue
# adhoc test code
if __name__ == "__main__":
import portage, sys
l = make_default_sets("/", "/", portage.settings.profiles, portage.settings, portage.db["/"]["vartree"].dbapi, portage.db["/"]["porttree"].dbapi)
l.update(make_extra_static_sets("/"))
l2 = make_category_sets(portage.db["/"]["porttree"].dbapi, portage.settings)
if len(sys.argv) > 1:
l = [s for s in l.union(l2) if s.getName() in sys.argv[1:]]
for x in l:
print x.getName()+":"
for n in sorted(x.getAtoms()):
print "- "+n
print
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