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authorZac Medico <zmedico@gentoo.org>2010-08-30 00:16:50 -0700
committerZac Medico <zmedico@gentoo.org>2010-08-30 00:16:50 -0700
commit25d8427b3b29cbcee97279186983dae818495f8f (patch)
tree36e05fdb10b3fc418686f59010ae4133428f7884 /pym/portage/sets/base.py
parent445f0d70d3624bc108b08da6d370bf194fcfc4ac (diff)
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Rename the portage.sets module to portage._sets since it will be useful
in the upcoming 2.1.9 branch which will not have sets support but will still have the code in private and disabled form.
Diffstat (limited to 'pym/portage/sets/base.py')
-rw-r--r--pym/portage/sets/base.py253
1 files changed, 0 insertions, 253 deletions
diff --git a/pym/portage/sets/base.py b/pym/portage/sets/base.py
deleted file mode 100644
index cd9c08d32..000000000
--- a/pym/portage/sets/base.py
+++ /dev/null
@@ -1,253 +0,0 @@
-# Copyright 2007-2010 Gentoo Foundation
-# Distributed under the terms of the GNU General Public License v2
-
-import sys
-from portage.dep import Atom, ExtendedAtomDict, best_match_to_list, match_from_list
-from portage.exception import InvalidAtom
-from portage.versions import cpv_getkey
-
-if sys.hexversion >= 0x3000000:
- basestring = str
-
-OPERATIONS = ["merge", "unmerge"]
-
-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"]
- description = "generic package set"
-
- def __init__(self):
- self._atoms = set()
- self._atommap = ExtendedAtomDict(set)
- self._loaded = False
- self._loading = False
- self.errors = []
- self._nonatoms = set()
- self.world_candidate = False
-
- def __contains__(self, atom):
- self._load()
- return atom in self._atoms or atom in self._nonatoms
-
- def __iter__(self):
- self._load()
- for x in self._atoms:
- yield x
- for x in self._nonatoms:
- yield x
-
- def __bool__(self):
- self._load()
- return bool(self._atoms or self._nonatoms)
-
- if sys.hexversion < 0x3000000:
- __nonzero__ = __bool__
-
- def supportsOperation(self, op):
- if not op in OPERATIONS:
- raise ValueError(op)
- return op in self._operations
-
- def _load(self):
- if not (self._loaded or self._loading):
- self._loading = True
- self.load()
- self._loaded = True
- self._loading = False
-
- def getAtoms(self):
- self._load()
- return self._atoms.copy()
-
- def getNonAtoms(self):
- self._load()
- return self._nonatoms.copy()
-
- def _setAtoms(self, atoms, allow_wildcard=False):
- self._atoms.clear()
- self._nonatoms.clear()
- for a in atoms:
- if not isinstance(a, Atom):
- if isinstance(a, basestring):
- a = a.strip()
- if not a:
- continue
- try:
- a = Atom(a, allow_wildcard=True)
- except InvalidAtom:
- self._nonatoms.add(a)
- continue
- if not allow_wildcard and a.extended_syntax:
- raise InvalidAtom("extended atom syntax not allowed here")
- self._atoms.add(a)
-
- self._updateAtomMap()
-
- 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):
- self._load()
- for a in self._atoms:
- if match_from_list(a, [cpv]):
- return True
- return False
-
- def getMetadata(self, key):
- if hasattr(self, key.lower()):
- return getattr(self, key.lower())
- else:
- return ""
-
- def _updateAtomMap(self, atoms=None):
- """Update self._atommap for specific atoms or all atoms."""
- if not atoms:
- self._atommap.clear()
- atoms = self._atoms
- for a in atoms:
- self._atommap.setdefault(a.cp, set()).add(a)
-
- # Not sure if this one should really be in PackageSet
- def findAtomForPackage(self, pkg, modified_use=None):
- """Return the best match for a given package from the arguments, or
- None if there are no matches. This matches virtual arguments against
- the PROVIDE metadata. This can raise an InvalidDependString exception
- if an error occurs while parsing PROVIDE."""
-
- if modified_use is not None and modified_use is not pkg.use.enabled:
- pkg = pkg.copy()
- pkg.metadata["USE"] = " ".join(modified_use)
-
- # Atoms matched via PROVIDE must be temporarily transformed since
- # match_from_list() only works correctly when atom.cp == pkg.cp.
- rev_transform = {}
- for atom in self.iterAtomsForPackage(pkg):
- if atom.cp == pkg.cp:
- rev_transform[atom] = atom
- else:
- rev_transform[Atom(atom.replace(atom.cp, pkg.cp, 1), allow_wildcard=True)] = atom
- best_match = best_match_to_list(pkg, iter(rev_transform))
- if best_match:
- return rev_transform[best_match]
- return None
-
- def iterAtomsForPackage(self, pkg):
- """
- Find all matching atoms for a given package. This matches virtual
- arguments against the PROVIDE metadata. This will raise an
- InvalidDependString exception if PROVIDE is invalid.
- """
- cpv_slot_list = [pkg]
- cp = cpv_getkey(pkg.cpv)
- self._load() # make sure the atoms are loaded
-
- atoms = self._atommap.get(cp)
- if atoms:
- for atom in atoms:
- if match_from_list(atom, cpv_slot_list):
- yield atom
- provides = pkg.metadata['PROVIDE']
- if not provides:
- return
- provides = provides.split()
- for provide in provides:
- try:
- provided_cp = Atom(provide).cp
- except InvalidAtom:
- continue
- atoms = self._atommap.get(provided_cp)
- if atoms:
- for atom in atoms:
- if match_from_list(atom.replace(provided_cp, cp),
- cpv_slot_list):
- yield atom
-
-class EditablePackageSet(PackageSet):
-
- def __init__(self, allow_wildcard=False):
- super(EditablePackageSet, self).__init__()
- self._allow_wildcard = allow_wildcard
-
- def update(self, atoms):
- self._load()
- modified = False
- normal_atoms = []
- for a in atoms:
- if not isinstance(a, Atom):
- try:
- a = Atom(a, allow_wildcard=True)
- except InvalidAtom:
- modified = True
- self._nonatoms.add(a)
- continue
- if not self._allow_wildcard and a.extended_syntax:
- raise InvalidAtom("extended atom syntax not allowed here")
- normal_atoms.append(a)
-
- if normal_atoms:
- modified = True
- self._atoms.update(normal_atoms)
- self._updateAtomMap(atoms=normal_atoms)
- if modified:
- self.write()
-
- def add(self, atom):
- self.update([atom])
-
- def replace(self, atoms):
- self._setAtoms(atoms, allow_wildcard=self._allow_wildcard)
- self.write()
-
- def remove(self, atom):
- self._load()
- self._atoms.discard(atom)
- self._nonatoms.discard(atom)
- self._updateAtomMap()
- self.write()
-
- def removePackageAtoms(self, cp):
- self._load()
- for a in list(self._atoms):
- if a.cp == cp:
- self.remove(a)
- self.write()
-
- def write(self):
- # This method must be overwritten in subclasses that should be editable
- raise NotImplementedError()
-
-class InternalPackageSet(EditablePackageSet):
- def __init__(self, initial_atoms=None, allow_wildcard=False):
- super(InternalPackageSet, self).__init__(allow_wildcard=allow_wildcard)
- if initial_atoms != None:
- self.update(initial_atoms)
-
- def clear(self):
- self._atoms.clear()
- self._updateAtomMap()
-
- def load(self):
- pass
-
- def write(self):
- pass
-
-class DummyPackageSet(PackageSet):
- def __init__(self, atoms=None):
- super(DummyPackageSet, self).__init__()
- if atoms:
- self._setAtoms(atoms)
-
- def load(self):
- pass
-
- def singleBuilder(cls, options, settings, trees):
- atoms = options.get("packages", "").split()
- return DummyPackageSet(atoms=atoms)
- singleBuilder = classmethod(singleBuilder)