autodisc: make it possible to interrupt auto source discovery

[babeltrace.git] / src / cli / babeltrace2-cfg-cli-args-default.c

/*
 * Copyright 2016 - Jérémie Galarneau <jeremie.galarneau@efficios.com>
 * Copyright 2017 - Philippe Proulx <pproulx@efficios.com>
 *
 * Permission is hereby granted, free of charge, to any person obtaining a copy
 * of this software and associated documentation files (the "Software"), to deal
 * in the Software without restriction, including without limitation the rights
 * to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
 * copies of the Software, and to permit persons to whom the Software is
 * furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
 * OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
 * SOFTWARE.
 */

#include <glib.h>

#include <babeltrace2/babeltrace.h>
#include "babeltrace2-cfg.h"
#include "babeltrace2-cfg-cli-args.h"
#include "babeltrace2-cfg-cli-args-default.h"

#ifdef ENABLE_DEBUG_INFO
# define BT_ENABLE_DEBUG_INFO	1
#else
# define BT_ENABLE_DEBUG_INFO	0
#endif

#ifdef BT_SET_DEFAULT_IN_TREE_CONFIGURATION

struct bt_config *bt_config_cli_args_create_with_default(int argc,
		const char *argv[], int *retcode,
		const bt_interrupter *interrupter)
{
	bt_value *initial_plugin_paths;
	struct bt_config *cfg = NULL;
	int ret;

	initial_plugin_paths = bt_value_array_create();
	if (!initial_plugin_paths) {
		goto error;
	}

	ret = bt_config_append_plugin_paths(initial_plugin_paths,
		CONFIG_IN_TREE_PLUGIN_PATH);
	if (ret) {
		goto error;
	}

#ifdef CONFIG_IN_TREE_PROVIDER_DIR
	/*
	 * Set LIBBABELTRACE2_PLUGIN_PROVIDER_DIR to load the in-tree Python
	 * plugin provider, if the env variable is already set, do not overwrite
	 * it.
	 */
	g_setenv("LIBBABELTRACE2_PLUGIN_PROVIDER_DIR", CONFIG_IN_TREE_PROVIDER_DIR, 0);
#else
	/*
	 * If the Pyhton plugin provider is disabled, use a non-exitent path to avoid
	 * loading the system installed provider if it exit, if the env variable is
	 * already set, do not overwrite it.
	 */
	g_setenv("LIBBABELTRACE2_PLUGIN_PROVIDER_DIR", "/nonexistent", 0);
#endif

	cfg = bt_config_cli_args_create(argc, argv, retcode, true, true,
		initial_plugin_paths, interrupter);
	goto end;

error:
	*retcode = 1;
	BT_OBJECT_PUT_REF_AND_RESET(cfg);

end:
	bt_value_put_ref(initial_plugin_paths);
	return cfg;
}

#else /* BT_SET_DEFAULT_IN_TREE_CONFIGURATION */

struct bt_config *bt_config_cli_args_create_with_default(int argc,
		const char *argv[], int *retcode,
		const bt_interrupter *interrupter)
{
	return bt_config_cli_args_create(argc, argv, retcode, false, false,
		NULL, interrupter);
}

#endif /* BT_SET_DEFAULT_IN_TREE_CONFIGURATION */