b5503e53fd
The universal application works well, but is quite difficult to extend with more functionality. Therefore a new and more modular application is needed. The new dctool application will support multiple sub-commands, to carry out specific actions. Extending the application will be as easy as adding new commands.
126 lines
2.7 KiB
C
126 lines
2.7 KiB
C
/*
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* libdivecomputer
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*
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* Copyright (C) 2015 Jef Driesen
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston,
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* MA 02110-1301 USA
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*/
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#ifdef HAVE_CONFIG_H
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#include "config.h"
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#endif
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#include <stdlib.h>
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#include <unistd.h>
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#include <string.h>
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#include <stdio.h>
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#ifdef HAVE_GETOPT_H
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#include <getopt.h>
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#endif
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#include "dctool.h"
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#include "utils.h"
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#if defined(__GLIBC__) || defined(__MINGW32__)
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#define NOPERMUTATION "+"
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#define RESET 0
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#else
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#define NOPERMUTATION ""
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#define RESET 1
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#endif
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static const dctool_command_t *g_commands[] = {
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NULL
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};
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const dctool_command_t *
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dctool_command_find (const char *name)
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{
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if (name == NULL)
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return NULL;
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size_t i = 0;
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while (g_commands[i] != NULL) {
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if (strcmp(g_commands[i]->name, name) == 0) {
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break;
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}
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i++;
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}
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return g_commands[i];
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}
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int
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main (int argc, char *argv[])
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{
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// Default option values.
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unsigned int help = 0;
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// Parse the command-line options.
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int opt = 0;
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const char *optstring = NOPERMUTATION "h";
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#ifdef HAVE_GETOPT_LONG
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struct option options[] = {
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{"help", no_argument, 0, 'h'},
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{0, 0, 0, 0 }
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};
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while ((opt = getopt_long (argc, argv, optstring, options, NULL)) != -1) {
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#else
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while ((opt = getopt (argc, argv, optstring)) != -1) {
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#endif
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switch (opt) {
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case 'h':
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help = 1;
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break;
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default:
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return EXIT_FAILURE;
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}
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}
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// Skip the processed arguments.
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argc -= optind;
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argv += optind;
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optind = RESET;
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// Show help message.
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if (help || argv[0] == NULL) {
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printf (
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"A simple command line interface for the libdivecomputer library\n"
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"\n"
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"Usage:\n"
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" dctool [options] <command> [<args>]\n"
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"\n"
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"Options:\n"
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#ifdef HAVE_GETOPT_LONG
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" -h, --help Show help message\n"
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#else
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" -h Show help message\n"
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#endif
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"\n");
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return EXIT_SUCCESS;
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}
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// Try to find the command.
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const dctool_command_t *command = dctool_command_find (argv[0]);
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if (command == NULL) {
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message ("Unknown command %s.\n", argv[0]);
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return EXIT_FAILURE;
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}
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// Execute the command.
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return command->run (argc, argv);
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}
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