Remove Babeltrace 1 files and reorganize the tree
[babeltrace.git] / converter / babeltrace.c
index 9a5af9fb01efa436dc1f0604de83df2f1a0e886a..cb8492f2acfd9630f1b5d1feb8c8d5653ac2f075 100644 (file)
 
 #include <babeltrace/babeltrace.h>
 #include <babeltrace/plugin/plugin.h>
-#include <babeltrace/component/component.h>
-#include <babeltrace/component/component-source.h>
-#include <babeltrace/component/component-sink.h>
-#include <babeltrace/component/component-filter.h>
-#include <babeltrace/component/component-class.h>
-#include <babeltrace/component/notification/iterator.h>
+#include <babeltrace/common-internal.h>
+#include <babeltrace/graph/component.h>
+#include <babeltrace/graph/component-source.h>
+#include <babeltrace/graph/component-sink.h>
+#include <babeltrace/graph/component-filter.h>
+#include <babeltrace/graph/component-class.h>
+#include <babeltrace/graph/port.h>
+#include <babeltrace/graph/graph.h>
+#include <babeltrace/graph/connection.h>
+#include <babeltrace/graph/notification-iterator.h>
 #include <babeltrace/ref.h>
 #include <babeltrace/values.h>
 #include <stdlib.h>
-#include <babeltrace/ctf-ir/metadata.h>        /* for clocks */
 #include <popt.h>
 #include <string.h>
 #include <stdio.h>
 #include <glib.h>
+#include <inttypes.h>
 #include "babeltrace-cfg.h"
+#include "babeltrace-cfg-connect.h"
 #include "default-cfg.h"
 
 GPtrArray *loaded_plugins;
@@ -97,6 +102,53 @@ end:
        return comp_class;
 }
 
+static
+void print_indent(size_t indent)
+{
+       size_t i;
+
+       for (i = 0; i < indent; i++) {
+               printf(" ");
+       }
+}
+
+static char *escape_name_for_shell(const char *input)
+{
+       char *output = g_malloc0(strlen(input) * 5 + 1);
+       const char *in;
+       char *out = output;
+
+       if (!output) {
+               goto end;
+       }
+
+       for (in = input; *in != '\0'; in++) {
+               switch (*in) {
+               case '\\':
+                       *out++ = '\\';
+                       *out++ = '\\';
+                       break;
+               case '\'':
+                       *out++ = '\'';
+                       *out++ = '"';
+                       *out++ = '\'';
+                       *out++ = '"';
+                       *out++ = '\'';
+                       break;
+               case '.':
+                       *out++ = '\\';
+                       *out++ = '.';
+                       break;
+               default:
+                       *out++ = *in;
+                       break;
+               }
+       }
+
+end:
+       return output;
+}
+
 static
 const char *component_type_str(enum bt_component_class_type type)
 {
@@ -113,113 +165,78 @@ const char *component_type_str(enum bt_component_class_type type)
        }
 }
 
-static
-void print_component_classes_found(void)
+static void print_plugin_comp_cls_opt(FILE *fh, const char *plugin_name,
+               const char *comp_cls_name, enum bt_component_class_type type)
 {
-       int plugins_count, component_classes_count = 0, i;
-
-       if (!babeltrace_verbose) {
-               return;
-       }
+       char *shell_plugin_name = NULL;
+       char *shell_comp_cls_name = NULL;
 
-       plugins_count = loaded_plugins->len;
-       if (plugins_count == 0) {
-               fprintf(stderr, "No plugins found. Please make sure your plug-in search path is set correctly.\n");
-               return;
+       shell_plugin_name = escape_name_for_shell(plugin_name);
+       if (!shell_plugin_name) {
+               goto end;
        }
 
-       for (i = 0; i < plugins_count; i++) {
-               struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
-
-               component_classes_count += bt_plugin_get_component_class_count(plugin);
+       shell_comp_cls_name = escape_name_for_shell(comp_cls_name);
+       if (!shell_comp_cls_name) {
+               goto end;
        }
 
-       printf_verbose("Found %d component classes in %d plugins.\n",
-               component_classes_count, plugins_count);
-
-       for (i = 0; i < plugins_count; i++) {
-               int j;
-               struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
-               unsigned int major, minor, patch;
-               const char *extra;
-               enum bt_plugin_status version_status;
-
-               component_classes_count =
-                       bt_plugin_get_component_class_count(plugin);
-               version_status = bt_plugin_get_version(plugin, &major, &minor,
-                       &patch, &extra);
-
-               for (j = 0; j < component_classes_count; j++) {
-                       struct bt_component_class *comp_class =
-                               bt_plugin_get_component_class(plugin, j);
-                       const char *plugin_name = bt_plugin_get_name(plugin);
-                       const char *comp_class_name =
-                               bt_component_class_get_name(comp_class);
-                       const char *path = bt_plugin_get_path(plugin);
-                       const char *author = bt_plugin_get_author(plugin);
-                       const char *license = bt_plugin_get_license(plugin);
-                       const char *plugin_description =
-                               bt_plugin_get_description(plugin);
-                       const char *comp_class_description =
-                               bt_component_class_get_description(comp_class);
-                       enum bt_component_class_type type =
-                               bt_component_class_get_type(comp_class);
-
-                       printf_verbose("[%s - %s (%s)]\n", plugin_name,
-                               comp_class_name, component_type_str(type));
-                       printf_verbose("\tpath: %s\n", path ? path : "None");
-                       printf_verbose("\tauthor: %s\n",
-                               author ? author : "Unknown");
-                       printf_verbose("\tlicense: %s\n",
-                               license ? license : "Unknown");
-                       printf_verbose("\tplugin description: %s\n",
-                               plugin_description ? plugin_description : "None");
-
-                       if (version_status == BT_PLUGIN_STATUS_OK) {
-                               printf_verbose("\tplugin version: %u.%u.%u",
-                                       major, minor, patch);
+       fprintf(fh, "%s%s--%s%s %s'%s%s%s%s.%s%s%s'",
+               bt_common_color_bold(),
+               bt_common_color_fg_cyan(),
+               component_type_str(type),
+               bt_common_color_reset(),
+               bt_common_color_fg_default(),
+               bt_common_color_bold(),
+               bt_common_color_fg_blue(),
+               shell_plugin_name,
+               bt_common_color_fg_default(),
+               bt_common_color_fg_yellow(),
+               shell_comp_cls_name,
+               bt_common_color_reset());
 
-                               if (extra) {
-                                       printf("%s", extra);
-                               }
-
-                               printf("\n");
-                       }
-
-                       printf_verbose("\tcomponent description: %s\n",
-                               comp_class_description ? comp_class_description : "None");
-                       bt_put(comp_class);
-               }
-       }
+end:
+       g_free(shell_plugin_name);
+       g_free(shell_comp_cls_name);
 }
 
 static
-void print_indent(size_t indent)
-{
-       size_t i;
-
-       for (i = 0; i < indent; i++) {
-               printf_verbose(" ");
-       }
-}
+void print_value(struct bt_value *, size_t);
 
 static
-void print_value(struct bt_value *, size_t, bool);
+void print_value_rec(struct bt_value *, size_t);
 
 static
 bool print_map_value(const char *key, struct bt_value *object, void *data)
 {
-       size_t indent = (size_t) data;
+       size_t *indent = data;
 
-       print_indent(indent);
-       printf_verbose("\"%s\": ", key);
-       print_value(object, indent, false);
+       print_indent(*indent);
+       printf("%s: ", key);
 
+       if (bt_value_is_array(object) &&
+                       bt_value_array_is_empty(object)) {
+               printf("[ ]\n");
+               return true;
+       }
+
+       if (bt_value_is_map(object) &&
+                       bt_value_map_is_empty(object)) {
+               printf("{ }\n");
+               return true;
+       }
+
+       if (bt_value_is_array(object) ||
+                       bt_value_is_map(object)) {
+               printf("\n");
+       }
+
+       print_value_rec(object, *indent + 2);
        return true;
 }
 
 static
-void print_value(struct bt_value *value, size_t indent, bool do_indent)
+void print_value_rec(struct bt_value *value, size_t indent)
 {
        bool bool_val;
        int64_t int_val;
@@ -232,69 +249,114 @@ void print_value(struct bt_value *value, size_t indent, bool do_indent)
                return;
        }
 
-       if (do_indent) {
-               print_indent(indent);
-       }
-
        switch (bt_value_get_type(value)) {
        case BT_VALUE_TYPE_NULL:
-               printf_verbose("null\n");
+               printf("%snull%s\n", bt_common_color_bold(),
+                       bt_common_color_reset());
                break;
        case BT_VALUE_TYPE_BOOL:
                bt_value_bool_get(value, &bool_val);
-               printf_verbose("%s\n", bool_val ? "true" : "false");
+               printf("%s%s%s%s\n", bt_common_color_bold(),
+                       bt_common_color_fg_cyan(), bool_val ? "yes" : "no",
+                       bt_common_color_reset());
                break;
        case BT_VALUE_TYPE_INTEGER:
                bt_value_integer_get(value, &int_val);
-               printf_verbose("%" PRId64 "\n", int_val);
+               printf("%s%s%" PRId64 "%s\n", bt_common_color_bold(),
+                       bt_common_color_fg_red(), int_val,
+                       bt_common_color_reset());
                break;
        case BT_VALUE_TYPE_FLOAT:
                bt_value_float_get(value, &dbl_val);
-               printf_verbose("%lf\n", dbl_val);
+               printf("%s%s%lf%s\n", bt_common_color_bold(),
+                       bt_common_color_fg_red(), dbl_val,
+                       bt_common_color_reset());
                break;
        case BT_VALUE_TYPE_STRING:
                bt_value_string_get(value, &str_val);
-               printf_verbose("\"%s\"\n", str_val);
+               printf("%s%s%s%s\n", bt_common_color_bold(),
+                       bt_common_color_fg_green(), str_val,
+                       bt_common_color_reset());
                break;
        case BT_VALUE_TYPE_ARRAY:
                size = bt_value_array_size(value);
-               printf_verbose("[\n");
+               assert(size >= 0);
+
+               if (size == 0) {
+                       print_indent(indent);
+                       printf("[ ]\n");
+                       break;
+               }
 
                for (i = 0; i < size; i++) {
                        struct bt_value *element =
                                        bt_value_array_get(value, i);
 
-                       print_value(element, indent + 2, true);
+                       assert(element);
+                       print_indent(indent);
+                       printf("- ");
+
+                       if (bt_value_is_array(element) &&
+                                       bt_value_array_is_empty(element)) {
+                               printf("[ ]\n");
+                               continue;
+                       }
+
+                       if (bt_value_is_map(element) &&
+                                       bt_value_map_is_empty(element)) {
+                               printf("{ }\n");
+                               continue;
+                       }
+
+                       if (bt_value_is_array(element) ||
+                                       bt_value_is_map(element)) {
+                               printf("\n");
+                       }
+
+                       print_value_rec(element, indent + 2);
                        BT_PUT(element);
                }
-
-               print_indent(indent);
-               printf_verbose("]\n");
                break;
        case BT_VALUE_TYPE_MAP:
                if (bt_value_map_is_empty(value)) {
-                       printf_verbose("{}\n");
-                       return;
+                       print_indent(indent);
+                       printf("{ }\n");
+                       break;
                }
 
-               printf_verbose("{\n");
-               bt_value_map_foreach(value, print_map_value,
-                       (void *) (indent + 2));
-               print_indent(indent);
-               printf_verbose("}\n");
+               bt_value_map_foreach(value, print_map_value, &indent);
                break;
        default:
                assert(false);
        }
 }
 
+static
+void print_value(struct bt_value *value, size_t indent)
+{
+       if (!bt_value_is_array(value) && !bt_value_is_map(value)) {
+               print_indent(indent);
+       }
+
+       print_value_rec(value, indent);
+}
+
 static
 void print_bt_config_component(struct bt_config_component *bt_config_component)
 {
-       printf_verbose("  %s.%s\n", bt_config_component->plugin_name->str,
-               bt_config_component->component_name->str);
-       printf_verbose("    params:\n");
-       print_value(bt_config_component->params, 6, true);
+       printf("    ");
+       print_plugin_comp_cls_opt(stdout, bt_config_component->plugin_name->str,
+               bt_config_component->comp_cls_name->str,
+               bt_config_component->type);
+       printf(":\n");
+
+       if (bt_config_component->instance_name->len > 0) {
+               printf("      Name: %s\n",
+                       bt_config_component->instance_name->str);
+       }
+
+       printf("      Parameters:\n");
+       print_value(bt_config_component->params, 8);
 }
 
 static
@@ -310,19 +372,114 @@ void print_bt_config_components(GPtrArray *array)
        }
 }
 
+static
+void print_plugin_paths(struct bt_value *plugin_paths)
+{
+       printf("  Plugin paths:\n");
+       print_value(plugin_paths, 4);
+}
+
+static
+void print_cfg_run(struct bt_config *cfg)
+{
+       size_t i;
+
+       print_plugin_paths(cfg->plugin_paths);
+       printf("  Source component instances:\n");
+       print_bt_config_components(cfg->cmd_data.run.sources);
+
+       if (cfg->cmd_data.run.filters->len > 0) {
+               printf("  Filter component instances:\n");
+               print_bt_config_components(cfg->cmd_data.run.filters);
+       }
+
+       printf("  Sink component instances:\n");
+       print_bt_config_components(cfg->cmd_data.run.sinks);
+       printf("  Connections:\n");
+
+       for (i = 0; i < cfg->cmd_data.run.connections->len; i++) {
+               struct bt_config_connection *cfg_connection =
+                       g_ptr_array_index(cfg->cmd_data.run.connections,
+                               i);
+
+               printf("    %s%s%s -> %s%s%s\n",
+                       cfg_connection->src_instance_name->str,
+                       cfg_connection->src_port_name->len > 0 ? "." : "",
+                       cfg_connection->src_port_name->str,
+                       cfg_connection->dst_instance_name->str,
+                       cfg_connection->dst_port_name->len > 0 ? "." : "",
+                       cfg_connection->dst_port_name->str);
+       }
+}
+
+static
+void print_cfg_list_plugins(struct bt_config *cfg)
+{
+       print_plugin_paths(cfg->plugin_paths);
+}
+
+static
+void print_cfg_help(struct bt_config *cfg)
+{
+       print_plugin_paths(cfg->plugin_paths);
+}
+
+static
+void print_cfg_print_ctf_metadata(struct bt_config *cfg)
+{
+       print_plugin_paths(cfg->plugin_paths);
+       printf("  Path: %s\n", cfg->cmd_data.print_ctf_metadata.path->str);
+}
+
+static
+void print_cfg_print_lttng_live_sessions(struct bt_config *cfg)
+{
+       print_plugin_paths(cfg->plugin_paths);
+       printf("  URL: %s\n", cfg->cmd_data.print_lttng_live_sessions.url->str);
+}
+
+static
+void print_cfg_query(struct bt_config *cfg)
+{
+       print_plugin_paths(cfg->plugin_paths);
+       printf("  Object: `%s`\n", cfg->cmd_data.query.object->str);
+       printf("  Component class:\n");
+       print_bt_config_component(cfg->cmd_data.query.cfg_component);
+}
+
 static
 void print_cfg(struct bt_config *cfg)
 {
-       printf_verbose("debug:           %d\n", cfg->debug);
-       printf_verbose("verbose:         %d\n", cfg->verbose);
-       printf_verbose("do list:         %d\n", cfg->do_list);
-       printf_verbose("force correlate: %d\n", cfg->force_correlate);
-       printf_verbose("plugin paths:\n");
-       print_value(cfg->plugin_paths, 2, true);
-       printf_verbose("sources:\n");
-       print_bt_config_components(cfg->sources);
-       printf_verbose("sinks:\n");
-       print_bt_config_components(cfg->sinks);
+       if (!babeltrace_verbose) {
+               return;
+       }
+
+       printf("Configuration:\n");
+       printf("  Debug mode: %s\n", cfg->debug ? "yes" : "no");
+       printf("  Verbose mode: %s\n", cfg->verbose ? "yes" : "no");
+
+       switch (cfg->command) {
+       case BT_CONFIG_COMMAND_RUN:
+               print_cfg_run(cfg);
+               break;
+       case BT_CONFIG_COMMAND_LIST_PLUGINS:
+               print_cfg_list_plugins(cfg);
+               break;
+       case BT_CONFIG_COMMAND_HELP:
+               print_cfg_help(cfg);
+               break;
+       case BT_CONFIG_COMMAND_QUERY:
+               print_cfg_query(cfg);
+               break;
+       case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
+               print_cfg_print_ctf_metadata(cfg);
+               break;
+       case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
+               print_cfg_print_lttng_live_sessions(cfg);
+               break;
+       default:
+               assert(false);
+       }
 }
 
 static
@@ -390,28 +547,35 @@ end:
 }
 
 static
-int connect_source_sink(struct bt_component *source,
+int connect_source_sink(struct bt_graph *graph,
+               struct bt_component *source,
                struct bt_config_component *source_cfg,
                struct bt_component *sink)
 {
        int ret = 0;
-       enum bt_component_status sink_status;
+       struct bt_connection *connection = NULL;
        struct bt_component *trimmer = NULL;
-       struct bt_notification_iterator *source_it = NULL;
-       struct bt_notification_iterator *to_sink_it = NULL;
-
-       source_it = bt_component_source_create_notification_iterator(source);
-       if (!source_it) {
-               fprintf(stderr, "Failed to instantiate source iterator. Aborting...\n");
-                ret = -1;
-                goto end;
-        }
+       struct bt_port *source_port =
+                       bt_component_source_get_default_output_port(source);
+       struct bt_port *sink_port =
+                       bt_component_sink_get_default_input_port(sink);
+       struct bt_port *to_sink_port = NULL;
+       struct bt_port *trimmer_input_port = NULL;
+
+       if (!source_port) {
+               fprintf(stderr, "Failed to find default source output port. Aborting...\n");
+               ret = -1;
+               goto end;
+       }
+       if (!sink_port) {
+               fprintf(stderr, "Failed to find default sink input port. Aborting...\n");
+               ret = -1;
+               goto end;
+       }
 
        if (bt_value_map_has_key(source_cfg->params, "begin")
                        || bt_value_map_has_key(source_cfg->params, "end")) {
                /* A trimmer must be inserted in the graph. */
-               enum bt_component_status trimmer_status;
-
                trimmer = create_trimmer(source_cfg);
                if (!trimmer) {
                        fprintf(stderr, "Failed to create trimmer component. Aborting...\n");
@@ -419,35 +583,45 @@ int connect_source_sink(struct bt_component *source,
                        goto end;
                }
 
-               trimmer_status = bt_component_filter_add_iterator(trimmer,
-                               source_it);
-               BT_PUT(source_it);
-               if (trimmer_status != BT_COMPONENT_STATUS_OK) {
-                       fprintf(stderr, "Failed to connect source to trimmer. Aborting...\n");
+               trimmer_input_port = bt_component_filter_get_default_input_port(
+                               trimmer);
+               if (!trimmer_input_port) {
+                       fprintf(stderr, "Failed to find trimmer input port. Aborting...\n");
+                       ret = -1;
+                       goto end;
+               }
+               to_sink_port = bt_component_filter_get_default_output_port(
+                               trimmer);
+               if (!to_sink_port) {
+                       fprintf(stderr, "Failed to find trimmer output port. Aborting...\n");
                        ret = -1;
                        goto end;
                }
 
-               to_sink_it = bt_component_filter_create_notification_iterator(trimmer);
-               if (!to_sink_it) {
-                       fprintf(stderr, "Failed to instantiate trimmer iterator. Aborting...\n");
+               connection = bt_graph_connect_ports(graph, source_port,
+                               trimmer_input_port);
+               if (!connection) {
+                       fprintf(stderr, "Failed to connect source to trimmer. Aborting...\n");
                        ret = -1;
                        goto end;
                }
+               BT_PUT(connection);
        } else {
-               BT_MOVE(to_sink_it, source_it);
+               BT_MOVE(to_sink_port, source_port);
        }
 
-       sink_status = bt_component_sink_add_iterator(sink, to_sink_it);
-       if (sink_status != BT_COMPONENT_STATUS_OK) {
-               fprintf(stderr, "Failed to connect to sink component. Aborting...\n");
+       connection = bt_graph_connect_ports(graph, to_sink_port, sink_port);
+       if (!connection) {
+               fprintf(stderr, "Failed to connect to sink. Aborting...\n");
                ret = -1;
                goto end;
        }
 end:
        bt_put(trimmer);
-       bt_put(source_it);
-       bt_put(to_sink_it);
+       bt_put(source_port);
+       bt_put(sink_port);
+       bt_put(to_sink_port);
+       bt_put(connection);
        return ret;
 }
 
@@ -475,11 +649,11 @@ void add_to_loaded_plugins(struct bt_plugin **plugins)
 }
 
 static
-int load_dynamic_plugins(struct bt_config *cfg)
+int load_dynamic_plugins(struct bt_value *plugin_paths)
 {
        int nr_paths, i, ret = 0;
 
-       nr_paths = bt_value_array_size(cfg->plugin_paths);
+       nr_paths = bt_value_array_size(plugin_paths);
        if (nr_paths < 0) {
                ret = -1;
                goto end;
@@ -490,7 +664,7 @@ int load_dynamic_plugins(struct bt_config *cfg)
                const char *plugin_path;
                struct bt_plugin **plugins;
 
-               plugin_path_value = bt_value_array_get(cfg->plugin_paths, i);
+               plugin_path_value = bt_value_array_get(plugin_paths, i);
                if (bt_value_string_get(plugin_path_value,
                                &plugin_path)) {
                        BT_PUT(plugin_path_value);
@@ -533,83 +707,446 @@ end:
        return ret;
 }
 
-int main(int argc, const char **argv)
+static int load_all_plugins(struct bt_value *plugin_paths)
+{
+       int ret = 0;
+
+       if (load_dynamic_plugins(plugin_paths)) {
+               fprintf(stderr, "Failed to load dynamic plugins.\n");
+               ret = -1;
+               goto end;
+       }
+
+       if (load_static_plugins()) {
+               fprintf(stderr, "Failed to load static plugins.\n");
+               ret = -1;
+               goto end;
+       }
+
+end:
+       return ret;
+}
+
+static void print_plugin_info(struct bt_plugin *plugin)
+{
+       unsigned int major, minor, patch;
+       const char *extra;
+       enum bt_plugin_status version_status;
+       const char *plugin_name;
+       const char *path;
+       const char *author;
+       const char *license;
+       const char *plugin_description;
+
+       plugin_name = bt_plugin_get_name(plugin);
+       path = bt_plugin_get_path(plugin);
+       author = bt_plugin_get_author(plugin);
+       license = bt_plugin_get_license(plugin);
+       plugin_description = bt_plugin_get_description(plugin);
+       version_status = bt_plugin_get_version(plugin, &major, &minor,
+               &patch, &extra);
+       printf("%s%s%s%s:\n", bt_common_color_bold(),
+               bt_common_color_fg_blue(), plugin_name,
+               bt_common_color_reset());
+       printf("  %sPath%s: %s\n", bt_common_color_bold(),
+               bt_common_color_reset(), path ? path : "(None)");
+
+       if (version_status == BT_PLUGIN_STATUS_OK) {
+               printf("  %sVersion%s: %u.%u.%u",
+                       bt_common_color_bold(), bt_common_color_reset(),
+                       major, minor, patch);
+
+               if (extra) {
+                       printf("%s", extra);
+               }
+
+               printf("\n");
+       }
+
+       printf("  %sDescription%s: %s\n", bt_common_color_bold(),
+               bt_common_color_reset(),
+               plugin_description ? plugin_description : "(None)");
+       printf("  %sAuthor%s: %s\n", bt_common_color_bold(),
+               bt_common_color_reset(), author ? author : "(Unknown)");
+       printf("  %sLicense%s: %s\n", bt_common_color_bold(),
+               bt_common_color_reset(),
+               license ? license : "(Unknown)");
+}
+
+static int cmd_query(struct bt_config *cfg)
 {
        int ret;
-       struct bt_component_class *source_class = NULL;
-       struct bt_component_class *sink_class = NULL;
-       struct bt_component *source = NULL, *sink = NULL;
-       struct bt_value *source_params = NULL, *sink_params = NULL;
-       struct bt_config *cfg;
-       enum bt_component_status sink_status;
-       struct bt_config_component *source_cfg = NULL, *sink_cfg = NULL;
+       struct bt_component_class *comp_cls = NULL;
+       struct bt_value *results = NULL;
 
-       init_loaded_plugins_array();
+       ret = load_all_plugins(cfg->plugin_paths);
+       if (ret) {
+               goto end;
+       }
 
-       cfg = bt_config_create();
-       if (!cfg) {
-               fprintf(stderr, "Failed to create Babeltrace configuration\n");
-               ret = 1;
+       comp_cls = find_component_class(cfg->cmd_data.query.cfg_component->plugin_name->str,
+               cfg->cmd_data.query.cfg_component->comp_cls_name->str,
+               cfg->cmd_data.query.cfg_component->type);
+       if (!comp_cls) {
+               fprintf(stderr, "%s%sCannot find component class %s",
+                       bt_common_color_bold(),
+                       bt_common_color_fg_red(),
+                       bt_common_color_reset());
+               print_plugin_comp_cls_opt(stderr,
+                       cfg->cmd_data.query.cfg_component->plugin_name->str,
+                       cfg->cmd_data.query.cfg_component->comp_cls_name->str,
+                       cfg->cmd_data.query.cfg_component->type);
+               fprintf(stderr, "\n");
+               ret = -1;
+               goto end;
+       }
+
+       results = bt_component_class_query(comp_cls,
+               cfg->cmd_data.query.object->str,
+               cfg->cmd_data.query.cfg_component->params);
+       if (!results) {
+               fprintf(stderr, "%s%sFailed to query info to %s",
+                       bt_common_color_bold(),
+                       bt_common_color_fg_red(),
+                       bt_common_color_reset());
+               print_plugin_comp_cls_opt(stderr,
+                       cfg->cmd_data.query.cfg_component->plugin_name->str,
+                       cfg->cmd_data.query.cfg_component->comp_cls_name->str,
+                       cfg->cmd_data.query.cfg_component->type);
+               fprintf(stderr, "%s%s with object `%s`%s\n",
+                       bt_common_color_bold(),
+                       bt_common_color_fg_red(),
+                       cfg->cmd_data.query.object->str,
+                       bt_common_color_reset());
+               ret = -1;
                goto end;
        }
 
-       ret = set_default_config(cfg);
+       print_value(results, 0);
+
+end:
+       bt_put(comp_cls);
+       bt_put(results);
+       return ret;
+}
+
+static int cmd_help(struct bt_config *cfg)
+{
+       int ret;
+       struct bt_plugin *plugin = NULL;
+       size_t i;
+
+       ret = load_all_plugins(cfg->plugin_paths);
        if (ret) {
                goto end;
        }
 
-       ret = bt_config_init_from_args(cfg, argc, argv);
-       if (ret == 0) {
-               babeltrace_verbose = cfg->verbose;
-               babeltrace_debug = cfg->debug;
-               print_cfg(cfg);
-       } else {
+       plugin = find_plugin(cfg->cmd_data.help.cfg_component->plugin_name->str);
+       if (!plugin) {
+               fprintf(stderr, "%s%sCannot find plugin %s%s%s\n",
+                       bt_common_color_bold(), bt_common_color_fg_red(),
+                       bt_common_color_fg_blue(),
+                       cfg->cmd_data.help.cfg_component->plugin_name->str,
+                       bt_common_color_reset());
+               ret = -1;
                goto end;
        }
 
-       /* TODO handle more than 1 source and 1 sink. */
-       if (cfg->sources->len != 1 || cfg->sinks->len != 1) {
+       print_plugin_info(plugin);
+       printf("  %sComponent classes%s: %d\n",
+                       bt_common_color_bold(),
+                       bt_common_color_reset(),
+                       bt_plugin_get_component_class_count(plugin));
+
+
+       if (cfg->cmd_data.help.cfg_component->type !=
+                       BT_COMPONENT_CLASS_TYPE_UNKNOWN) {
+               struct bt_component_class *needed_comp_cls =
+                       find_component_class(
+                               cfg->cmd_data.help.cfg_component->plugin_name->str,
+                               cfg->cmd_data.help.cfg_component->comp_cls_name->str,
+                               cfg->cmd_data.help.cfg_component->type);
+
+               if (!needed_comp_cls) {
+                       fprintf(stderr, "\n%s%sCannot find component class %s",
+                               bt_common_color_bold(),
+                               bt_common_color_fg_red(),
+                               bt_common_color_reset());
+                       print_plugin_comp_cls_opt(stderr,
+                               cfg->cmd_data.help.cfg_component->plugin_name->str,
+                               cfg->cmd_data.help.cfg_component->comp_cls_name->str,
+                               cfg->cmd_data.help.cfg_component->type);
+                       fprintf(stderr, "\n");
+                       ret = -1;
+                       goto end;
+               }
+
+               bt_put(needed_comp_cls);
+       }
+
+       for (i = 0; i < bt_plugin_get_component_class_count(plugin); i++) {
+               struct bt_component_class *comp_cls =
+                       bt_plugin_get_component_class(plugin, i);
+               const char *comp_class_name =
+                       bt_component_class_get_name(comp_cls);
+               const char *comp_class_description =
+                       bt_component_class_get_description(comp_cls);
+               const char *comp_class_help =
+                       bt_component_class_get_help(comp_cls);
+               enum bt_component_class_type type =
+                       bt_component_class_get_type(comp_cls);
+
+               assert(comp_cls);
+
+               if (cfg->cmd_data.help.cfg_component->type !=
+                               BT_COMPONENT_CLASS_TYPE_UNKNOWN) {
+                       if (strcmp(cfg->cmd_data.help.cfg_component->comp_cls_name->str,
+                                       comp_class_name) != 0 &&
+                                       type ==
+                                       cfg->cmd_data.help.cfg_component->type) {
+                               bt_put(comp_cls);
+                               continue;
+                       }
+               }
+
+               printf("\n");
+               print_plugin_comp_cls_opt(stdout,
+                       cfg->cmd_data.help.cfg_component->plugin_name->str,
+                       comp_class_name,
+                       type);
+               printf("\n");
+               printf("  %sDescription%s: %s\n", bt_common_color_bold(),
+                       bt_common_color_reset(),
+                       comp_class_description ? comp_class_description : "(None)");
+
+               if (comp_class_help) {
+                       printf("\n%s\n", comp_class_help);
+               }
+
+               bt_put(comp_cls);
+       }
+
+end:
+       bt_put(plugin);
+       return ret;
+}
+
+static int cmd_list_plugins(struct bt_config *cfg)
+{
+       int ret;
+       int plugins_count, component_classes_count = 0, i;
+
+       ret = load_all_plugins(cfg->plugin_paths);
+       if (ret) {
+               goto end;
+       }
+
+       printf("From the following plugin paths:\n\n");
+       print_value(cfg->plugin_paths, 2);
+       printf("\n");
+       plugins_count = loaded_plugins->len;
+       if (plugins_count == 0) {
+               fprintf(stderr, "%s%sNo plugins found.%s\n",
+                       bt_common_color_bold(), bt_common_color_fg_red(),
+                       bt_common_color_reset());
+               fprintf(stderr, "\n");
+               fprintf(stderr, "Please make sure your plugin search path is set correctly. You can use\n");
+               fprintf(stderr, "the --plugin-path command-line option or the BABELTRACE_PLUGIN_PATH\n");
+               fprintf(stderr, "environment variable.\n");
                ret = -1;
                goto end;
        }
 
-       printf_verbose("Verbose mode active.\n");
-       printf_debug("Debug mode active.\n");
+       for (i = 0; i < plugins_count; i++) {
+               struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
+
+               component_classes_count += bt_plugin_get_component_class_count(plugin);
+       }
+
+       printf("Found %s%d%s component classes in %s%d%s plugins.\n",
+               bt_common_color_bold(),
+               component_classes_count,
+               bt_common_color_reset(),
+               bt_common_color_bold(),
+               plugins_count,
+               bt_common_color_reset());
 
-       if (load_dynamic_plugins(cfg)) {
-               fprintf(stderr, "Failed to load dynamic plugins.\n");
+       for (i = 0; i < plugins_count; i++) {
+               int j;
+               struct bt_plugin *plugin = g_ptr_array_index(loaded_plugins, i);
+
+               component_classes_count =
+                       bt_plugin_get_component_class_count(plugin);
+               printf("\n");
+               print_plugin_info(plugin);
+
+               if (component_classes_count == 0) {
+                       printf("  %sComponent classes%s: (None)\n",
+                               bt_common_color_bold(),
+                               bt_common_color_reset());
+               } else {
+                       printf("  %sComponent classes%s:\n",
+                               bt_common_color_bold(),
+                               bt_common_color_reset());
+               }
+
+               for (j = 0; j < component_classes_count; j++) {
+                       struct bt_component_class *comp_class =
+                               bt_plugin_get_component_class(plugin, j);
+                       const char *comp_class_name =
+                               bt_component_class_get_name(comp_class);
+                       const char *comp_class_description =
+                               bt_component_class_get_description(comp_class);
+                       enum bt_component_class_type type =
+                               bt_component_class_get_type(comp_class);
+
+                       printf("    ");
+                       print_plugin_comp_cls_opt(stdout,
+                               bt_plugin_get_name(plugin), comp_class_name,
+                               type);
+
+                       if (comp_class_description) {
+                               printf(": %s", comp_class_description);
+                       }
+
+                       printf("\n");
+                       bt_put(comp_class);
+               }
+       }
+
+end:
+       return ret;
+}
+
+static int cmd_print_lttng_live_sessions(struct bt_config *cfg)
+{
+       printf("TODO\n");
+       return -1;
+}
+
+static int cmd_print_ctf_metadata(struct bt_config *cfg)
+{
+       int ret = 0;
+       struct bt_component_class *comp_cls = NULL;
+       struct bt_value *results = NULL;
+       struct bt_value *params = NULL;
+       struct bt_value *metadata_text_value = NULL;
+       const char *metadata_text = NULL;
+       static const char * const plugin_name = "ctf";
+       static const char * const comp_cls_name = "fs";
+       static const enum bt_component_class_type comp_cls_type =
+               BT_COMPONENT_CLASS_TYPE_SOURCE;
+
+       assert(cfg->cmd_data.print_ctf_metadata.path);
+       comp_cls = find_component_class(plugin_name, comp_cls_name,
+               comp_cls_type);
+       if (!comp_cls) {
+               fprintf(stderr, "%s%sCannot find component class %s",
+                       bt_common_color_bold(),
+                       bt_common_color_fg_red(),
+                       bt_common_color_reset());
+               print_plugin_comp_cls_opt(stderr, plugin_name,
+                       comp_cls_name, comp_cls_type);
+               fprintf(stderr, "\n");
                ret = -1;
                goto end;
        }
 
-       if (load_static_plugins()) {
-               fprintf(stderr, "Failed to load static plugins.\n");
+       params = bt_value_map_create();
+       if (!params) {
+               ret = -1;
                goto end;
        }
 
-       print_component_classes_found();
-       source_cfg = bt_config_get_component(cfg->sources, 0);
+       ret = bt_value_map_insert_string(params, "path",
+               cfg->cmd_data.print_ctf_metadata.path->str);
+       if (ret) {
+               ret = -1;
+               goto end;
+       }
+
+       results = bt_component_class_query(comp_cls, "metadata-info",
+               params);
+       if (!results) {
+               ret = -1;
+               fprintf(stderr, "%s%sFailed to request metadata info%s\n",
+                       bt_common_color_bold(),
+                       bt_common_color_fg_red(),
+                       bt_common_color_reset());
+               goto end;
+       }
+
+       metadata_text_value = bt_value_map_get(results, "text");
+       if (!metadata_text_value) {
+               ret = -1;
+               goto end;
+       }
+
+       ret = bt_value_string_get(metadata_text_value, &metadata_text);
+       assert(ret == 0);
+       printf("%s\n", metadata_text);
+
+end:
+       bt_put(results);
+       bt_put(params);
+       bt_put(metadata_text_value);
+       bt_put(comp_cls);
+       return 0;
+}
+
+static int cmd_run(struct bt_config *cfg)
+{
+       int ret = 0;
+       struct bt_component_class *source_class = NULL;
+       struct bt_component_class *sink_class = NULL;
+       struct bt_component *source = NULL, *sink = NULL;
+       struct bt_value *source_params = NULL, *sink_params = NULL;
+       struct bt_config_component *source_cfg = NULL, *sink_cfg = NULL;
+       struct bt_graph *graph = NULL;
+
+       ret = load_all_plugins(cfg->plugin_paths);
+       if (ret) {
+               goto end;
+       }
+
+       /* TODO handle more than 1 source and 1 sink. */
+       if (cfg->cmd_data.run.sources->len != 1 ||
+                       cfg->cmd_data.run.sinks->len != 1) {
+               fprintf(stderr, "Only one source and one sink component class are supported. Aborting...\n");
+               ret = -1;
+               goto end;
+       }
+
+       source_cfg = bt_config_get_component(cfg->cmd_data.run.sources, 0);
        source_params = bt_get(source_cfg->params);
        source_class = find_component_class(source_cfg->plugin_name->str,
-                       source_cfg->component_name->str,
+                       source_cfg->comp_cls_name->str,
                        BT_COMPONENT_CLASS_TYPE_SOURCE);
        if (!source_class) {
-               fprintf(stderr, "Could not find %s.%s source component class. Aborting...\n",
-                               source_cfg->plugin_name->str,
-                               source_cfg->component_name->str);
+               fprintf(stderr, "Could not find ");
+               print_plugin_comp_cls_opt(stderr, source_cfg->plugin_name->str,
+                       source_cfg->comp_cls_name->str, BT_COMPONENT_CLASS_TYPE_SOURCE);
+               fprintf(stderr, ". Aborting...\n");
                ret = -1;
                goto end;
        }
 
-       sink_cfg = bt_config_get_component(cfg->sinks, 0);
+       sink_cfg = bt_config_get_component(cfg->cmd_data.run.sinks, 0);
        sink_params = bt_get(sink_cfg->params);
        sink_class = find_component_class(sink_cfg->plugin_name->str,
-                       sink_cfg->component_name->str,
+                       sink_cfg->comp_cls_name->str,
                        BT_COMPONENT_CLASS_TYPE_SINK);
        if (!sink_class) {
-               fprintf(stderr, "Could not find %s.%s output component class. Aborting...\n",
-                               sink_cfg->plugin_name->str,
-                               sink_cfg->component_name->str);
+               fprintf(stderr, "Could not find ");
+               print_plugin_comp_cls_opt(stderr, sink_cfg->plugin_name->str,
+                       sink_cfg->comp_cls_name->str, BT_COMPONENT_CLASS_TYPE_SINK);
+               fprintf(stderr, ". Aborting...\n");
+               ret = -1;
+               goto end;
+       }
+
+       graph = bt_graph_create();
+       if (!graph) {
                ret = -1;
                goto end;
        }
@@ -628,20 +1165,21 @@ int main(int argc, const char **argv)
                goto end;
        }
 
-       ret = connect_source_sink(source, source_cfg, sink);
+       ret = connect_source_sink(graph, source, source_cfg, sink);
        if (ret) {
+               ret = -1;
                goto end;
        }
 
        while (true) {
-               sink_status = bt_component_sink_consume(sink);
-               switch (sink_status) {
-               case BT_COMPONENT_STATUS_AGAIN:
+               enum bt_graph_status graph_status;
+
+               graph_status = bt_graph_run(graph);
+               switch (graph_status) {
+               case BT_GRAPH_STATUS_AGAIN:
                        /* Wait for an arbitraty 500 ms. */
                        usleep(500000);
                        break;
-               case BT_COMPONENT_STATUS_OK:
-                       break;
                case BT_COMPONENT_STATUS_END:
                        goto end;
                default:
@@ -650,16 +1188,103 @@ int main(int argc, const char **argv)
                        goto end;
                }
        }
+
+end:
+       bt_put(sink_class);
+       bt_put(source_class);
+       bt_put(source);
+       bt_put(sink);
+       bt_put(source_params);
+       bt_put(sink_params);
+       bt_put(sink_cfg);
+       bt_put(source_cfg);
+       bt_put(graph);
+       return ret;
+}
+
+static void warn_command_name_and_directory_clash(struct bt_config *cfg)
+{
+       if (!cfg->command_name) {
+               return;
+       }
+
+       if (g_file_test(cfg->command_name,
+                       G_FILE_TEST_EXISTS | G_FILE_TEST_IS_DIR)) {
+               fprintf(stderr, "\nNOTE: The `%s` command was executed. If you meant to convert a\n",
+                       cfg->command_name);
+               fprintf(stderr, "trace located in the local `%s` directory, please use:\n",
+                       cfg->command_name);
+               fprintf(stderr, "\n");
+               fprintf(stderr, "    babeltrace convert %s [OPTIONS]\n",
+                       cfg->command_name);
+       }
+}
+
+int main(int argc, const char **argv)
+{
+       int ret;
+       int retcode;
+       struct bt_config *cfg;
+
+       init_loaded_plugins_array();
+       cfg = bt_config_from_args_with_defaults(argc, argv, &retcode);
+
+       if (retcode < 0) {
+               /* Quit without errors; typically usage/version */
+               retcode = 0;
+               goto end;
+       }
+
+       if (retcode > 0) {
+               goto end;
+       }
+
+       if (!cfg) {
+               fprintf(stderr, "Failed to create Babeltrace configuration\n");
+               retcode = 1;
+               goto end;
+       }
+
+       babeltrace_debug = cfg->debug;
+       babeltrace_verbose = cfg->verbose;
+       print_cfg(cfg);
+
+       if (cfg->command_needs_plugins) {
+               ret = load_all_plugins(cfg->plugin_paths);
+               if (ret) {
+                       retcode = 1;
+                       goto end;
+               }
+       }
+
+       switch (cfg->command) {
+       case BT_CONFIG_COMMAND_RUN:
+               ret = cmd_run(cfg);
+               break;
+       case BT_CONFIG_COMMAND_LIST_PLUGINS:
+               ret = cmd_list_plugins(cfg);
+               break;
+       case BT_CONFIG_COMMAND_HELP:
+               ret = cmd_help(cfg);
+               break;
+       case BT_CONFIG_COMMAND_QUERY:
+               ret = cmd_query(cfg);
+               break;
+       case BT_CONFIG_COMMAND_PRINT_CTF_METADATA:
+               ret = cmd_print_ctf_metadata(cfg);
+               break;
+       case BT_CONFIG_COMMAND_PRINT_LTTNG_LIVE_SESSIONS:
+               ret = cmd_print_lttng_live_sessions(cfg);
+               break;
+       default:
+               assert(false);
+       }
+
+       warn_command_name_and_directory_clash(cfg);
+       retcode = ret ? 1 : 0;
+
 end:
-       BT_PUT(sink_class);
-       BT_PUT(source_class);
-       BT_PUT(source);
-       BT_PUT(sink);
-       BT_PUT(source_params);
-       BT_PUT(sink_params);
        BT_PUT(cfg);
-       BT_PUT(sink_cfg);
-       BT_PUT(source_cfg);
        fini_loaded_plugins_array();
-       return ret ? 1 : 0;
+       return retcode;
 }
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