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VILLASnode/src/villas-conf2json.cpp

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1.6 KiB
C++

/** Convert old style config to new JSON format.
*
* @author Steffen Vogel <svogel2@eonerc.rwth-aachen.de>
* @copyright 2014-2022, Institute for Automation of Complex Power Systems, EONERC
* @license Apache 2.0
*********************************************************************************/
#include <libgen.h>
#include <iostream>
#include <jansson.h>
#include <libconfig.h>
#include <villas/config.hpp>
#include <villas/config_helper.hpp>
#include <villas/utils.hpp>
#include <villas/tool.hpp>
namespace villas {
namespace node {
namespace tools {
class Config2Json : public Tool {
public:
Config2Json(int argc, char *argv[]) :
Tool(argc, argv, "conf2json")
{ }
protected:
void usage()
{
std::cout << "Usage: conf2json input.conf > output.json" << std::endl << std::endl;
printCopyright();
}
int main()
{
int ret;
config_t cfg;
config_setting_t *cfg_root;
json_t *json;
if (argc != 2) {
usage();
exit(EXIT_FAILURE);
}
FILE *f = fopen(argv[1], "r");
if (f == nullptr)
return -1;
const char *confdir = dirname(argv[1]);
config_init(&cfg);
config_set_include_dir(&cfg, confdir);
ret = config_read(&cfg, f);
if (ret != CONFIG_TRUE)
return -2;
cfg_root = config_root_setting(&cfg);
json = config_to_json(cfg_root);
if (!json)
return -3;
ret = json_dumpf(json, stdout, JSON_INDENT(2)); fflush(stdout);
if (ret)
return ret;
json_decref(json);
config_destroy(&cfg);
return 0;
}
};
} /* namespace tools */
} /* namespace node */
} /* namespace villas */
int main(int argc, char *argv[])
{
villas::node::tools::Config2Json t(argc, argv);
return t.run();
}