Be less clever with || ( ) selection

Otherwise || ( self already-installed ) leads to an unbreakable cycle.

Fixes: ticket:1189

4 files changed, 46 insertions, 28 deletions

diff --git a/paludis/resolver/any_child_score.se b/paludis/resolver/any_child_score.se
index 2b8f041..76700e9 100644
--- a/paludis/resolver/any_child_score.se
+++ b/paludis/resolver/any_child_score.se
@@ -12,7 +12,6 @@ make_enum_AnyChildScore()
     key acs_blocks_installed         "Blocks a currently-installed package"
     key acs_could_install            "Could install"
     key acs_already_installed        "Already installed"
-    key acs_will_be_installing       "Will be installing"
     key acs_vacuous_blocker          "Blocker that doesn't match any installable packages"
     key acs_prefer                   "Explicitly preferred"
     key acs_better_than_best         "Better than the best option"
diff --git a/paludis/resolver/decider.cc b/paludis/resolver/decider.cc
index a898cf2..2873dbf 100644
--- a/paludis/resolver/decider.cc
+++ b/paludis/resolver/decider.cc
@@ -1259,34 +1259,8 @@ Decider::find_any_score(
     const std::shared_ptr<const Resolvents> resolvents_unless_block(is_block ? make_null_shared_ptr() :
             _get_resolvents_for(spec, reason_unless_block).first);
 
-    /* next: will already be installing */
-    static_assert(acs_will_be_installing < acs_vacuous_blocker, "acs order changed");
-    if (! is_block)
-    {
-        for (Resolvents::ConstIterator r(resolvents_unless_block->begin()), r_end(resolvents_unless_block->end()) ;
-                r != r_end ; ++r)
-        {
-            bool any(false), any_bad(false);
-            ResolutionsByResolvent::ConstIterator i(_imp->resolutions_by_resolvent->find(*r));
-            if (i != _imp->resolutions_by_resolvent->end() && (*i)->decision())
-            {
-                auto constraint(_make_constraint_from_package_dependency(our_resolution, dep, reason_unless_block, si_take));
-                if (_check_constraint(constraint, (*i)->decision()))
-                    any = true;
-                else
-                {
-                    any_bad = false;
-                    break;
-                }
-            }
-
-            if (any && ! any_bad)
-                return std::make_pair(acs_will_be_installing, operator_bias);
-        }
-    }
-
     /* next: already installed */
-    static_assert(acs_already_installed < acs_will_be_installing, "acs order changed");
+    static_assert(acs_already_installed < acs_vacuous_blocker, "acs order changed");
     {
         Context sub_context("When working out whether it's acs_already_installed:");
 
diff --git a/paludis/resolver/resolver_TEST_any.cc b/paludis/resolver/resolver_TEST_any.cc
index 2f7c6fe..7242228 100644
--- a/paludis/resolver/resolver_TEST_any.cc
+++ b/paludis/resolver/resolver_TEST_any.cc
@@ -296,3 +296,27 @@ TEST_F(ResolverAnyTestCase, SelfUseNeither)
             );
 }
 
+TEST_F(ResolverAnyTestCase, SelfOrOther)
+{
+    data->install("self-or-other", "other", "1");
+    data->get_use_existing_nothing_helper.set_use_existing_for_dependencies(ue_if_same_version);
+
+    std::shared_ptr<const Resolved> resolved(data->get_resolved("self-or-other/target"));
+
+    check_resolved(resolved,
+            n::taken_change_or_remove_decisions() = make_shared_copy(DecisionChecks()
+                .change(QualifiedPackageName("self-or-other/target"))
+                .finished()),
+            n::taken_unable_to_make_decisions() = make_shared_copy(DecisionChecks()
+                .finished()),
+            n::taken_unconfirmed_decisions() = make_shared_copy(DecisionChecks()
+                .finished()),
+            n::taken_unorderable_decisions() = make_shared_copy(DecisionChecks()
+                .finished()),
+            n::untaken_change_or_remove_decisions() = make_shared_copy(DecisionChecks()
+                .finished()),
+            n::untaken_unable_to_make_decisions() = make_shared_copy(DecisionChecks()
+                .finished())
+            );
+}
+
diff --git a/paludis/resolver/resolver_TEST_any_setup.sh b/paludis/resolver/resolver_TEST_any_setup.sh
index 1f56d53..50ec27c 100755
--- a/paludis/resolver/resolver_TEST_any_setup.sh
+++ b/paludis/resolver/resolver_TEST_any_setup.sh
@@ -134,5 +134,26 @@ MYOPTIONS="disabled disabled2"
 DEPENDENCIES="run: || ( self-use-neither/dep[disabled] self-use-neither/dep[disabled2] )"
 END
 
+# self-or-other
+echo 'self-or-other' >> metadata/categories.conf
+
+mkdir -p 'packages/self-or-other/target'
+cat <<END > packages/self-or-other/target/target-1.exheres-0
+SUMMARY="target"
+PLATFORMS="test"
+SLOT="0"
+DEPENDENCIES="
+    || ( self-or-other/target self-or-other/other )
+    "
+END
+
+mkdir -p 'packages/self-or-other/other'
+cat <<END > packages/self-or-other/other/other-1.exheres-0
+SUMMARY="other"
+PLATFORMS="test"
+SLOT="0"
+DEPENDENCIES=""
+END
+
 cd ..