diff options
Diffstat (limited to 'pym/_emerge/depgraph.py')
| -rw-r--r-- | pym/_emerge/depgraph.py | 34 |
1 files changed, 33 insertions, 1 deletions
diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py index fbbae1e29..400207e4e 100644 --- a/pym/_emerge/depgraph.py +++ b/pym/_emerge/depgraph.py @@ -18,7 +18,8 @@ from portage import os, OrderedDict from portage import _unicode_decode, _unicode_encode, _encodings from portage.const import PORTAGE_PACKAGE_ATOM, USER_CONFIG_PATH from portage.dbapi import dbapi -from portage.dep import Atom, extract_affecting_use, check_required_use, human_readable_required_use, _repo_separator +from portage.dep import Atom, best_match_to_list, extract_affecting_use, \ + check_required_use, human_readable_required_use, _repo_separator from portage.eapi import eapi_has_strong_blocks, eapi_has_required_use from portage.exception import InvalidAtom, InvalidDependString, PortageException from portage.output import colorize, create_color_func, \ @@ -2694,6 +2695,37 @@ class depgraph(object): dep_chain.append((pkg_name, node.type_name)) + + # To build a dep chain for the given package we take + # "random" parents form the digraph, except for the + # first package, because we want a parent that forced + # the corresponding change (i.e '>=foo-2', instead 'foo'). + + traversed_nodes.add(start_node) + + start_node_parent_atoms = {} + for ppkg, patom in all_parents[node]: + # Get a list of suitable atoms. For use deps + # (aka unsatisfied_dependency is not None) we + # need that the start_node doesn't match the atom. + if not unsatisfied_dependency or \ + not InternalPackageSet(initial_atoms=(patom,)).findAtomForPackage(start_node): + start_node_parent_atoms.setdefault(patom, []).append(ppkg) + + if start_node_parent_atoms: + # If there are parents in all_parents then use one of them. + # If not, then this package got pulled in by an Arg and + # will be correctly handled by the code that handles later + # packages in the dep chain. + best_match = best_match_to_list(node.cpv, start_node_parent_atoms) + + child = node + for ppkg in start_node_parent_atoms[best_match]: + node = ppkg + if ppkg in self._dynamic_config._initial_arg_list: + # Stop if reached the top level of the dep chain. + break + while node is not None: traversed_nodes.add(node) |