[gnome-software] rpm-ostree: Implement triggering an update

[Kalev Lember <klember src gnome org>]

commit 5c2c66a4843a4d783796e50bb639edb1cf6a4831
Author: Kalev Lember <klember redhat com>
Date:   Thu Mar 29 20:31:23 2018 +0200

    rpm-ostree: Implement triggering an update
    
    We only downloaded and showed updates so far, but didn't actually
    implement triggering an update. This commit is the missing piece for
    making rpm-ostree updates work.

 plugins/rpm-ostree/gs-plugin-rpm-ostree.c | 80 +++++++++++++++++++++++++++++++
 1 file changed, 80 insertions(+)
---
diff --git a/plugins/rpm-ostree/gs-plugin-rpm-ostree.c b/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
index 64a86bef..68de8943 100644
--- a/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
+++ b/plugins/rpm-ostree/gs-plugin-rpm-ostree.c
@@ -35,6 +35,7 @@ struct GsPluginData {
        GsRPMOSTreeSysroot      *sysroot_proxy;
        OstreeRepo              *ot_repo;
        OstreeSysroot           *ot_sysroot;
+       gboolean                 update_triggered;
 };
 
 void
@@ -554,6 +555,85 @@ gs_plugin_add_updates (GsPlugin *plugin,
        return TRUE;
 }
 
+static gboolean
+trigger_rpmostree_update (GsPlugin *plugin,
+                          GsApp *app,
+                          GCancellable *cancellable,
+                          GError **error)
+{
+       GsPluginData *priv = gs_plugin_get_data (plugin);
+       g_autofree gchar *transaction_address = NULL;
+       g_autoptr(GVariant) options = NULL;
+
+       /* if we can process this online do not require a trigger */
+       if (gs_app_get_state (app) != AS_APP_STATE_UPDATABLE)
+               return TRUE;
+
+       /* only process this app if was created by this plugin */
+       if (g_strcmp0 (gs_app_get_management_plugin (app), gs_plugin_get_name (plugin)) != 0)
+               return TRUE;
+
+       /* already in correct state */
+       if (priv->update_triggered)
+               return TRUE;
+
+       /* trigger the update */
+       options = make_rpmostree_options_variant (FALSE,  /* reboot */
+                                                 FALSE,  /* allow-downgrade */
+                                                 TRUE,   /* cache-only */
+                                                 FALSE,  /* download-only */
+                                                 FALSE,  /* skip-purge */
+                                                 FALSE,  /* no-pull-base */
+                                                 FALSE,  /* dry-run */
+                                                 FALSE); /* no-overrides */
+       if (!gs_rpmostree_os_call_upgrade_sync (priv->os_proxy,
+                                               options,
+                                               NULL /* fd list */,
+                                               &transaction_address,
+                                               NULL /* fd list out */,
+                                               cancellable,
+                                               error)) {
+               gs_utils_error_convert_gio (error);
+               return FALSE;
+       }
+
+       if (!gs_rpmostree_transaction_get_response_sync (priv->sysroot_proxy,
+                                                        transaction_address,
+                                                        cancellable,
+                                                        error)) {
+               gs_utils_error_convert_gio (error);
+               return FALSE;
+       }
+
+       priv->update_triggered = TRUE;
+
+       /* success */
+       return TRUE;
+}
+
+gboolean
+gs_plugin_update_app (GsPlugin *plugin,
+                      GsApp *app,
+                      GCancellable *cancellable,
+                      GError **error)
+{
+       GPtrArray *related = gs_app_get_related (app);
+
+       /* we don't currently don't put all updates in the OsUpdate proxy app */
+       if (!gs_app_has_quirk (app, AS_APP_QUIRK_IS_PROXY))
+               return trigger_rpmostree_update (plugin, app, cancellable, error);
+
+       /* try to trigger each related app */
+       for (guint i = 0; i < related->len; i++) {
+               GsApp *app_tmp = g_ptr_array_index (related, i);
+               if (!trigger_rpmostree_update (plugin, app_tmp, cancellable, error))
+                       return FALSE;
+       }
+
+       /* success */
+       return TRUE;
+}
+
 static void
 resolve_packages_app (GsPlugin *plugin,
                       GPtrArray *pkglist,