diff options
Diffstat (limited to 'pym/portage/sets/dbapi.py')
-rw-r--r-- | pym/portage/sets/dbapi.py | 157 |
1 files changed, 1 insertions, 156 deletions
diff --git a/pym/portage/sets/dbapi.py b/pym/portage/sets/dbapi.py index 13c0fd530..709bbbdec 100644 --- a/pym/portage/sets/dbapi.py +++ b/pym/portage/sets/dbapi.py @@ -3,162 +3,7 @@ # $Id$ from portage.versions import catsplit -from portage import flatten -from portage.dep import isvalidatom, match_from_list, \ - best_match_to_list, dep_getkey, use_reduce, paren_reduce -from portage.exception import InvalidAtom -from portage.sets import OPERATIONS - -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"] - _atommap = {} - description = "generic package set" - - def __init__(self, name): - self.name = name - self._atoms = set() - self._atommap = {} - self._loaded = False - self._loading = False - - def __contains__(self, atom): - return atom in self.getAtoms() - - def __iter__(self): - for x in self.getAtoms(): - yield x - - def supportsOperation(self, op): - if not op in OPERATIONS: - raise ValueError(op) - return op in self._operations - - def getAtoms(self): - if not (self._loaded or self._loading): - self._loading = True - self.load() - self._loaded = True - self._loading = False - 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 = set(atoms) - 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): - for a in self.getAtoms(): - 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: - cp = dep_getkey(a) - self._atommap.setdefault(cp, set()) - self._atommap[cp].add(a) - - # Not sure if this one should really be in PackageSet - def findAtomForPackage(self, cpv, metadata): - """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.""" - cpv_slot = "%s:%s" % (cpv, metadata["SLOT"]) - cp = dep_getkey(cpv) - self.getAtoms() # make sure the atoms are loaded - atoms = self._atommap.get(cp) - if atoms: - best_match = best_match_to_list(cpv_slot, atoms) - if best_match: - return best_match - if not metadata["PROVIDE"]: - return None - provides = flatten(use_reduce(paren_reduce(metadata["PROVIDE"]), - uselist=metadata["USE"].split())) - for provide in provides: - provided_cp = dep_getkey(provide) - atoms = self._atommap.get(provided_cp) - if atoms: - atoms = list(atoms) - transformed_atoms = [atom.replace(provided_cp, cp) for atom in atoms] - best_match = best_match_to_list(cpv_slot, transformed_atoms) - if best_match: - return atoms[transformed_atoms.index(best_match)] - return None - -class EditablePackageSet(PackageSet): - - def update(self, atoms): - self.getAtoms() - self._atoms.update(atoms) - self._updateAtomMap(atoms=atoms) - self.write() - - def add(self, atom): - self.update([atom]) - - def replace(self, atoms): - self._setAtoms(atoms) - self.write() - - def remove(self, atom): - self.getAtoms() - self._atoms.discard(atom) - self._updateAtomMap() - self.write() - - def removePackageAtoms(self, cp): - for a in list(self.getAtoms()): - if dep_getkey(a) == 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): - super(InternalPackageSet, self).__init__("") - if initial_atoms != None: - self.update(initial_atoms) - - def clear(self): - self._atoms.clear() - self._updateAtomMap() - - def load(self): - pass - - def write(self): - pass +from portage.sets import PackageSet class EverythingSet(PackageSet): _operations = ["merge", "unmerge"] |