[gnome-software] rpm-ostree: Implement provides search

[Kalev Lember <klember src gnome org>]

commit c21b68f47169e01f0c053b18d44aaef5fe948602
Author: Kalev Lember <klember redhat com>
Date:   Wed Apr 24 09:48:11 2019 +0200

    rpm-ostree: Implement provides search

 plugins/rpm-ostree/gs-plugin-rpm-ostree.c | 64 +++++++++++++++++++++++++++++++
 1 file changed, 64 insertions(+)
---
diff --git a/plugins/rpm-ostree/gs-plugin-rpm-ostree.c b/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
index b6b7fbd3..b47a66a3 100644
--- a/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
+++ b/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
@@ -1099,6 +1099,21 @@ find_package_by_name (DnfSack     *sack,
        return g_object_ref (pkgs->pdata[pkgs->len-1]);
 }
 
+static GPtrArray *
+find_packages_by_provides (DnfSack *sack,
+                           gchar **search)
+{
+       g_autoptr(GPtrArray) pkgs = NULL;
+       hy_autoquery HyQuery query = hy_query_create (sack);
+
+       hy_query_filter_provides_in (query, search);
+       hy_query_filter_latest_per_arch (query, TRUE);
+
+       pkgs = hy_query_run (query);
+
+       return g_steal_pointer (&pkgs);
+}
+
 static gboolean
 resolve_installed_packages_app (GsPlugin *plugin,
                                 GPtrArray *pkglist,
@@ -1148,6 +1163,10 @@ resolve_available_packages_app (GsPlugin *plugin,
                        gs_app_set_origin (app, reponame);
                }
 
+               /* set more metadata for packages that don't have appstream data */
+               gs_app_set_name (app, GS_APP_QUALITY_LOWEST, dnf_package_get_name (pkg));
+               gs_app_set_summary (app, GS_APP_QUALITY_LOWEST, dnf_package_get_summary (pkg));
+
                return TRUE /* found */;
        }
 
@@ -1496,3 +1515,48 @@ out:
                (void) Fclose (rpmfd);
        return ret;
 }
+
+gboolean
+gs_plugin_add_search_what_provides (GsPlugin *plugin,
+                                    gchar **search,
+                                    GsAppList *list,
+                                    GCancellable *cancellable,
+                                    GError **error)
+{
+       GsPluginData *priv = gs_plugin_get_data (plugin);
+       g_autoptr(GMutexLocker) locker = NULL;
+       g_autoptr(GPtrArray) pkglist = NULL;
+
+       locker = g_mutex_locker_new (&priv->mutex);
+
+       if (priv->dnf_context == NULL)
+               return TRUE;
+
+       pkglist = find_packages_by_provides (dnf_context_get_sack (priv->dnf_context), search);
+       for (guint i = 0; i < pkglist->len; i++) {
+               DnfPackage *pkg = g_ptr_array_index (pkglist, i);
+               g_autoptr(GsApp) app = NULL;
+
+               app = gs_plugin_cache_lookup (plugin, dnf_package_get_nevra (pkg));
+               if (app != NULL) {
+                       gs_app_list_add (list, app);
+                       continue;
+               }
+
+               /* create new app */
+               app = gs_app_new (NULL);
+               gs_app_set_metadata (app, "GnomeSoftware::Creator", gs_plugin_get_name (plugin));
+               gs_app_set_management_plugin (app, gs_plugin_get_name (plugin));
+               gs_app_add_quirk (app, GS_APP_QUIRK_NEEDS_REBOOT);
+               app_set_rpm_ostree_packaging_format (app);
+               gs_app_set_kind (app, AS_APP_KIND_GENERIC);
+               gs_app_set_bundle_kind (app, AS_BUNDLE_KIND_PACKAGE);
+               gs_app_set_scope (app, AS_APP_SCOPE_SYSTEM);
+               gs_app_add_source (app, dnf_package_get_name (pkg));
+
+               gs_plugin_cache_add (plugin, dnf_package_get_nevra (pkg), app);
+               gs_app_list_add (list, app);
+       }
+
+       return TRUE;
+}