core-legacy/src/helpers/parse_cli.c

#include <stdlib.h>
#include <string.h>
#include <stdio.h>

#include <argparse.h>

#include <config.h>
#include <logger.h>
#include <helpers.h>
#include <version.h>

static const char *const usage[] = {
    "core [options] [[--] args]",
    "core [options]",
    NULL,
};

void
helper_parse_cli(int argc, const char **argv, config_t *config)
{
    int version = 0;
    struct argparse_option options[] =
    {
        OPT_HELP(),
        OPT_GROUP("Basic options"),
        OPT_STRING('c', "config", &config->file, "path to config file", NULL, 0, OPT_NONEG),
        OPT_BOOLEAN('v', "version", &version, "print version", NULL, 0, OPT_NONEG),
        OPT_END(),
    };

    struct argparse argparse;
    argparse_init(&argparse, options, usage, 0);
    argparse_describe(
            &argparse,
            "\nA brief description of what the program does and how it works.",
            "\nAdditional description of the program after the description of the arguments."
    );
    argc = argparse_parse(&argparse, argc, argv);

    if(version)
    {
        printf("%s\n", EMGAUWA_CORE_VERSION);
        exit(0);
    }

    if(argc == 1)
    {
        config->run_type = RUN_TYPE_INVALID;
        if(strcmp(argv[0], "start") == 0)
        {
            config->run_type = RUN_TYPE_START;
            return;
        }
        LOGGER_CRIT("bad action '%s' given ('start')\n", argv[0]);
        exit(1);
    }
    else
    {
        LOGGER_CRIT("no action given ('start')\n");
        exit(1);
    }
    return;
}