Add a get-plugins command to fwupdtool

This returns the list of currently enabled plugins.

src/fu-engine.c

@@ -1218,6 +1218,23 @@ fu_engine_install (FuEngine *self,
 				       version, flags, error);
 }
 
+/**
+ * fu_engine_get_plugins:
+ * @self: A #FuPluginList
+ *
+ * Gets all the plugins that have been added.
+ *
+ * Returns: (transfer none) (element-type FuPlugin): the plugins
+ *
+ * Since: 1.0.8
+ **/
+GPtrArray *
+fu_engine_get_plugins (FuEngine *self)
+{
+	g_return_val_if_fail (FU_IS_ENGINE (self), NULL);
+	return fu_plugin_list_get_all (self->plugin_list);
+}
+
 gboolean
 fu_engine_install_blob (FuEngine *self,
 			FuDevice *device,
@@ -2879,7 +2896,7 @@ fu_engine_is_plugin_name_blacklisted (FuEngine *self, const gchar *name)
 	return FALSE;
 }
 
-static gboolean
+gboolean
 fu_engine_load_plugins (FuEngine *self, GError **error)
 {
 	const gchar *fn;
@@ -2925,10 +2942,14 @@ fu_engine_load_plugins (FuEngine *self, GError **error)
 		fu_plugin_set_runtime_versions (plugin, self->runtime_versions);
 		fu_plugin_set_compile_versions (plugin, self->compile_versions);
 		g_debug ("adding plugin %s", filename);
-		if (!fu_plugin_open (plugin, filename, &error_local)) {
-			g_warning ("failed to open plugin %s: %s",
-				   filename, error_local->message);
-			continue;
+
+		/* if loaded from fu_engine_load() open the plugin */
+		if (self->usb_ctx != NULL) {
+			if (!fu_plugin_open (plugin, filename, &error_local)) {
+				g_warning ("failed to open plugin %s: %s",
+					   filename, error_local->message);
+				continue;
+			}
 		}
 
 		/* self disabled */

src/fu-engine.h

@@ -40,6 +40,8 @@ G_DECLARE_FINAL_TYPE (FuEngine, fu_engine, FU, ENGINE, GObject)
 FuEngine	*fu_engine_new				(FuAppFlags	 app_flags);
 gboolean	 fu_engine_load				(FuEngine	*self,
 							 GError		**error);
+gboolean	 fu_engine_load_plugins			(FuEngine	*self,
+							 GError		**error);
 FwupdStatus	 fu_engine_get_status			(FuEngine	*self);
 void		 fu_engine_profile_dump			(FuEngine	*self);
 gboolean	 fu_engine_check_plugins_pending	(FuEngine	*self,
@@ -48,6 +50,7 @@ AsStore		*fu_engine_get_store_from_blob		(FuEngine	*self,
 							 GBytes		*blob_cab,
 							 GError		**error);
 guint64		 fu_engine_get_archive_size_max		(FuEngine	*self);
+GPtrArray	*fu_engine_get_plugins			(FuEngine	*self);
 GPtrArray	*fu_engine_get_devices			(FuEngine	*self,
 							 GError		**error);
 FuDevice	*fu_engine_get_device			(FuEngine	*self,

src/fu-plugin-list.c

@@ -124,11 +124,7 @@ fu_plugin_list_sort_cb (gconstpointer a, gconstpointer b)
 {
 	FuPlugin **pa = (FuPlugin **) a;
 	FuPlugin **pb = (FuPlugin **) b;
-	if (fu_plugin_get_order (*pa) < fu_plugin_get_order (*pb))
-		return -1;
-	if (fu_plugin_get_order (*pa) > fu_plugin_get_order (*pb))
-		return 1;
-	return 0;
+	return fu_plugin_order_compare (*pa, *pb);
 }
 
 /**

src/fu-plugin-private.h

@@ -106,6 +106,10 @@ gboolean	 fu_plugin_runner_clear_results		(FuPlugin	*plugin,
 gboolean	 fu_plugin_runner_get_results		(FuPlugin	*plugin,
 							 FuDevice	*device,
 							 GError		**error);
+gint		 fu_plugin_name_compare			(FuPlugin	*plugin1,
+							 FuPlugin	*plugin2);
+gint		 fu_plugin_order_compare		(FuPlugin	*plugin1,
+							 FuPlugin	*plugin2);
 
 /* utils */
 gchar		*fu_plugin_guess_name_from_fn           (const gchar	*filename);

src/fu-plugin.c

@@ -1538,6 +1538,44 @@ fu_plugin_get_config_value (FuPlugin *plugin, const gchar *key)
 	return g_key_file_get_string (keyfile, plugin_name, key, NULL);
 }
 
+/**
+ * fu_plugin_name_compare:
+ * @plugin1: first #FuPlugin to compare.
+ * @plugin2: second #FuPlugin to compare.
+ *
+ * Compares two plugins by their names.
+ *
+ * Returns: 1, 0 or -1 if @plugin1 is greater, equal, or less than @plugin2.
+ **/
+gint
+fu_plugin_name_compare (FuPlugin *plugin1, FuPlugin *plugin2)
+{
+	FuPluginPrivate *priv1 = fu_plugin_get_instance_private (plugin1);
+	FuPluginPrivate *priv2 = fu_plugin_get_instance_private (plugin2);
+	return g_strcmp0 (priv1->name, priv2->name);
+}
+
+/**
+ * fu_plugin_order_compare:
+ * @plugin1: first #FuPlugin to compare.
+ * @plugin2: second #FuPlugin to compare.
+ *
+ * Compares two plugins by their depsolved order.
+ *
+ * Returns: 1, 0 or -1 if @plugin1 is greater, equal, or less than @plugin2.
+ **/
+gint
+fu_plugin_order_compare (FuPlugin *plugin1, FuPlugin *plugin2)
+{
+	FuPluginPrivate *priv1 = fu_plugin_get_instance_private (plugin1);
+	FuPluginPrivate *priv2 = fu_plugin_get_instance_private (plugin2);
+	if (priv1->order < priv2->order)
+		return -1;
+	if (priv1->order > priv2->order)
+		return 1;
+	return 0;
+}
+
 static void
 fu_plugin_class_init (FuPluginClass *klass)
 {

src/fu-tool.c

@@ -29,6 +29,7 @@
 #include <unistd.h>
 
 #include "fu-engine.h"
+#include "fu-plugin-private.h"
 #include "fu-progressbar.h"
 #include "fu-smbios.h"
 #include "fu-util-common.h"
@@ -286,6 +287,41 @@ fu_util_watch (FuUtilPrivate *priv, gchar **values, GError **error)
 	return TRUE;
 }
 
+static gint
+fu_util_plugin_name_sort_cb (FuPlugin **item1, FuPlugin **item2)
+{
+	return fu_plugin_name_compare (*item1, *item2);
+}
+
+static gboolean
+fu_util_get_plugins (FuUtilPrivate *priv, gchar **values, GError **error)
+{
+	GPtrArray *plugins;
+	guint cnt = 0;
+
+	/* load engine */
+	if (!fu_engine_load_plugins (priv->engine, error))
+		return FALSE;
+
+	/* print */
+	plugins = fu_engine_get_plugins (priv->engine);
+	g_ptr_array_sort (plugins, (GCompareFunc) fu_util_plugin_name_sort_cb);
+	for (guint i = 0; i < plugins->len; i++) {
+		FuPlugin *plugin = g_ptr_array_index (plugins, i);
+		if (!fu_plugin_get_enabled (plugin))
+			continue;
+		g_print ("%s\n", fu_plugin_get_name (plugin));
+		cnt++;
+	}
+	if (cnt == 0) {
+		/* TRANSLATORS: nothing found */
+		g_print ("%s\n", _("No plugins found"));
+		return TRUE;
+	}
+
+	return TRUE;
+}
+
 static gboolean
 fu_util_get_devices (FuUtilPrivate *priv, gchar **values, GError **error)
 {
@@ -664,6 +700,12 @@ main (int argc, char *argv[])
 		     /* TRANSLATORS: command description */
 		     _("Dump SMBIOS data from a file"),
 		     fu_util_smbios_dump);
+	fu_util_add (priv->cmd_array,
+		     "get-plugins",
+		     NULL,
+		     /* TRANSLATORS: command description */
+		     _("Get all enabled plugins registered with the system"),
+		     fu_util_get_plugins);
 	fu_util_add (priv->cmd_array,
 		     "get-devices",
 		     NULL,