Add basic support of exclude_from_weak to context part

It will unify behaviour of dnf, microdnf, and PackageKit.

VERSION.cmake

@@ -1,5 +1,5 @@
 set (DEFAULT_LIBDNF_MAJOR_VERSION 0)
-set (DEFAULT_LIBDNF_MINOR_VERSION 64)
+set (DEFAULT_LIBDNF_MINOR_VERSION 65)
 set (DEFAULT_LIBDNF_MICRO_VERSION 0)
 
 if(DEFINED LIBDNF_MAJOR_VERSION)

libdnf.spec

@@ -4,7 +4,7 @@
 %global dnf_conflict 4.3.0
 %global swig_version 3.0.12
 %global libdnf_major_version 0
-%global libdnf_minor_version 64
+%global libdnf_minor_version 65
 %global libdnf_micro_version 0
 
 %define __cmake_in_source_build 1

libdnf/dnf-goal.cpp

@@ -48,6 +48,26 @@
 
 #include <vector>
 
+static void set_excludes_from_weak_to_goal(HyGoal goal)
+{
+    DnfSack * sack = hy_goal_get_sack(goal);
+
+    goal->reset_exclude_from_weak();
+
+    const auto & exclude_from_weak_autodetect = libdnf::getGlobalMainConfig().exclude_from_weak_autodetect().getValue();
+    if (exclude_from_weak_autodetect) {
+        goal->exclude_from_weak_autodetect();
+    }
+
+    const auto & exclude_from_weak = libdnf::getGlobalMainConfig().exclude_from_weak().getValue();
+
+    for (auto & exclude : exclude_from_weak) {
+        libdnf::Query query(sack);
+        auto ret = query.filterSubject(exclude.c_str(), nullptr, false, true, false, false);
+        goal->add_exclude_from_weak(*query.getResultPset());
+    }
+}
+
 /**
  * dnf_goal_depsolve:
  * @goal: a #HyGoal.
@@ -80,6 +100,8 @@ dnf_goal_depsolve(HyGoal goal, DnfGoalActions flags, GError **error) try
     auto pkgset = *query.runSet();
     goal->addProtected(pkgset);
 
+    set_excludes_from_weak_to_goal(goal);
+
     rc = hy_goal_run_flags(goal, flags);
     if (rc) {
         string = g_string_new(_("Could not depsolve transaction; "));

libdnf/sack/query.hpp

@@ -26,6 +26,7 @@
 #include "../hy-types.h"
 #include "../hy-query.h"
 #include "../hy-subject.h"
+#include "../nevra.hpp"
 #include "../repo/solvable/Dependency.hpp"
 #include "../repo/solvable/DependencyContainer.hpp"
 #include "../transaction/Swdb.hpp"