gaf/gaf.c

   1 /*
   2  * gEDA/gaf command-line utility
   3  * Copyright (C) 2012-2013 Peter Brett <peter@peter-b.co.uk>
   4  *
   5  * This program is free software; you can redistribute it and/or modify
   6  * it under the terms of the GNU General Public License as published by
   7  * the Free Software Foundation; either version 2 of the License, or
   8  * (at your option) any later version.
   9  *
  10  * This program is distributed in the hope that it will be useful,
  11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13  * GNU General Public License for more details.
  14  *
  15  * You should have received a copy of the GNU General Public License
  16  * along with this program; if not, write to the Free Software
  17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA
  18  */
  19
  20 #ifdef HAVE_CONFIG_H
  21 #  include <config.h>
  22 #endif
  23 #include <locale.h>
  24 #include <version.h>
  25
  26 #include <unistd.h>
  27 #include <stdlib.h>
  28 #include <stdio.h>
  29 #include <string.h>
  30 #include <getopt.h>
  31
  32 /* Gettext translation */
  33 #include "gettext.h"
  34
  35 #include <glib.h>
  36
  37 #include "builtins.h"
  38
  39 #define short_options "+hV"
  40
  41 static struct option long_options[] =
  42   {
  43     {"help", 0, NULL, 'h'},
  44     {"version", 0, NULL, 'V'},
  45     {"no-rcfiles", 0, NULL, 2},
  46     {NULL, 0, NULL, 0},
  47   };
  48
  49 struct internal_command {
  50   char *name;
  51   int (*func)(int, char **);
  52 };
  53
  54 static struct internal_command commands[] =
  55   {
  56     {"shell", cmd_shell},
  57     {"config", cmd_config},
  58     {"export", cmd_export},
  59     {NULL, NULL},
  60   };
  61
  62 /* Print help info and exit */
  63 static void
  64 usage (void)
  65 {
  66   printf (_("Usage: gaf [OPTION...] COMMAND [ARGS ...]\n"
  67 "\n"
  68 "gEDA/gaf command-line utility.\n"
  69 "\n"
  70 "General options:\n"
  71 "  --no-rcfiles   inhibit loading of 'gafrc' files\n"
  72 "  -h, --help     display usage information and exit\n"
  73 "  -V, --version  display version information and exit\n"
  74 "\n"
  75 "Commonly-used commands (type `gaf <cmd> --help' for usage):\n"
  76 "  shell          Scheme REPL for interactive gEDA data processing\n"
  77 "  config         Edit gEDA configuration\n"
  78 "  export         Export gEDA files in various image formats.\n"
  79 "\n"
  80 "Please report bugs to %s.\n"),
  81 PACKAGE_BUGREPORT);
  82   exit (0);
  83 }
  84
  85 /* Print version info and exit */
  86 static void
  87 version (void)
  88 {
  89   printf(_("gEDA/gaf %s (g%.7s)\n"
  90 "Copyright (C) 1998-2020 gEDA developers\n"
  91 "This is free software, and you are welcome to redistribute it under\n"
  92 "certain conditions. For details, see the file `COPYING', which is\n"
  93 "included in the gEDA distribution.\n"
  94 "There is NO WARRANTY, to the extent permitted by law.\n"),
  95          PACKAGE_DOTTED_VERSION, PACKAGE_GIT_COMMIT);
  96   exit (0);
  97 }
  98
  99 int
 100 main (int argc, char **argv)
 101 {
 102   int c;
 103   char *cmd = NULL;
 104   int cmd_argc = 0;
 105   char **cmd_argv = NULL;
 106   int (*cmd_func)(int, char **) = NULL;
 107
 108   /* Set up gettext */
 109 #if ENABLE_NLS
 110   setlocale (LC_ALL, "");
 111   bindtextdomain ("geda-gaf", LOCALEDIR);
 112   textdomain ("geda-gaf");
 113   bind_textdomain_codeset ("geda-gaf", "UTF-8");
 114 #endif
 115
 116   while (-1 != (c = getopt_long (argc, argv, short_options,
 117                                  long_options, NULL))) {
 118     switch (c) {
 119
 120     case 0:
 121       /* This is a long-form-only flag option, and has already been
 122        * dealt with by getopt_long(). */
 123       break;
 124
 125     case 2: /* --no-rcfiles */
 126       g_setenv ("GAF_INHIBIT_RCFILES", "1", 1);
 127       break;
 128
 129     case 'V':
 130       version ();
 131
 132     case 'h':
 133       usage ();
 134
 135     case '?':
 136       /* getopt_long already printed an error message */
 137       fprintf (stderr, _("\nRun `gaf --help' for more information.\n"));
 138       exit (1);
 139       break;
 140
 141     default:
 142       g_assert_not_reached ();
 143     }
 144   }
 145
 146   /* The next argument should be a command */
 147   if (optind == argc) {
 148     fprintf (stderr,
 149              _("ERROR: You must specify a command to run.\n"
 150                "\n"
 151                "Run `gaf --help' for more information.\n"));
 152     exit (1);
 153   }
 154
 155   cmd = argv[optind];
 156
 157   /* Look up the command */
 158   int i;
 159   for (i = 0; commands[i].name != NULL; i++) {
 160     if (strcmp (cmd, commands[i].name) == 0) {
 161       cmd_func = commands[i].func;
 162       break;
 163     }
 164   }
 165   if (cmd_func == NULL) {
 166     fprintf (stderr,
 167              _("ERROR: Unrecognised command `%s'.\n"
 168                "\n"
 169                "Run `gaf --help' for more information.\n"),
 170              cmd);
 171     exit (1);
 172   }
 173
 174   cmd_argc = argc - optind;
 175   cmd_argv = argv + optind;
 176   optind = 1;
 177
 178   return cmd_func (cmd_argc, cmd_argv);
 179 }