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-rw-r--r--pym/_emerge/depgraph.py34
1 files changed, 26 insertions, 8 deletions
diff --git a/pym/_emerge/depgraph.py b/pym/_emerge/depgraph.py
index e0e215cf2..1d78a0cbd 100644
--- a/pym/_emerge/depgraph.py
+++ b/pym/_emerge/depgraph.py
@@ -2627,19 +2627,37 @@ class depgraph(object):
new_changes[flag] = False
new_use.update(old_use.difference(target_use.keys()))
- def want_restart_for_use_change(pkg):
+ def want_restart_for_use_change(pkg, new_use):
if pkg not in self._dynamic_config.digraph.nodes:
return False
- #TODO: We can be more clever here. No need to restart if
- # 1) we don't have a parent that can't work with our
- # new use config
- # and
- # 2) none of pkg's *DEPEND vars changed
- return True
+
+ for key in "DEPEND", "RDEPEND", "PDEPEND", "LICENSE":
+ dep = pkg.metadata[key]
+ old_val = set(portage.dep.paren_normalize( \
+ portage.dep.use_reduce(portage.dep.paren_reduce(dep), pkg.use.enabled)))
+ new_val = set(portage.dep.paren_normalize( \
+ portage.dep.use_reduce(portage.dep.paren_reduce(dep), new_use)))
+
+ if old_val != new_val:
+ return True
+
+ parent_atoms = self._dynamic_config._parent_atoms.get(pkg)
+ if not parent_atoms:
+ return False
+
+ new_use, changes = self._dynamic_config._needed_use_config_changes.get(pkg)
+ for ppkg, atom in parent_atoms:
+ if not atom.use or \
+ not atom.use.required.intersection(changes.keys()):
+ continue
+ else:
+ return True
+
+ return False
if new_changes != old_changes:
self._dynamic_config._needed_use_config_changes[pkg] = (new_use, new_changes)
- if want_restart_for_use_change(pkg):
+ if want_restart_for_use_change(pkg, new_use):
self._dynamic_config._need_restart = True
return new_use