gaf/gaf.c

   1 /*
   2  * gEDA/gaf command-line utility
   3  * Copyright (C) 2012 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 <version.h>
  24
  25 #include <unistd.h>
  26 #include <stdlib.h>
  27 #include <stdio.h>
  28 #include <string.h>
  29 #include <getopt.h>
  30
  31 /* Gettext translation */
  32 #include "gettext.h"
  33
  34 #include <glib.h>
  35
  36 #include "builtins.h"
  37
  38 #define short_options "+hV"
  39
  40 static struct option long_options[] =
  41   {
  42     {"help", 0, NULL, 'h'},
  43     {"version", 0, NULL, 'V'},
  44     {"no-rcfiles", 0, NULL, 2},
  45     {NULL, 0, NULL, 0},
  46   };
  47
  48 struct internal_command {
  49   char *name;
  50   int (*func)(int, char **);
  51 };
  52
  53 static struct internal_command commands[] =
  54   {
  55     {"shell", cmd_shell},
  56     {"config", cmd_config},
  57     {"export", cmd_export},
  58     {NULL, NULL},
  59   };
  60
  61 /* Print help info and exit */
  62 static void
  63 usage (void)
  64 {
  65   printf (_("Usage: gaf [OPTION...] COMMAND [ARGS ...]\n"
  66 "\n"
  67 "gEDA/gaf command-line utility.\n"
  68 "\n"
  69 "General options:\n"
  70 "  --no-rcfiles   inhibit loading of 'gafrc' files\n"
  71 "  -h, --help     display usage information and exit\n"
  72 "  -V, --version  display version information and exit\n"
  73 "\n"
  74 "Commonly-used commands (type `gaf <cmd> --help' for usage):\n"
  75 "  shell          Scheme REPL for interactive gEDA data processing\n"
  76 "  config         Edit gEDA configuration\n"
  77 "  export         Export gEDA files in various image formats.\n"
  78 "\n"
  79 "Please report bugs to %s.\n"),
  80 PACKAGE_BUGREPORT);
  81   exit (0);
  82 }
  83
  84 /* Print version info and exit */
  85 static void
  86 version (void)
  87 {
  88   printf(_("gEDA/gaf %s (g%.7s)\n"
  89 "Copyright (C) 1998-2012 gEDA developers\n"
  90 "This is free software, and you are welcome to redistribute it under\n"
  91 "certain conditions. For details, see the file `COPYING', which is\n"
  92 "included in the gEDA distribution.\n"
  93 "There is NO WARRANTY, to the extent permitted by law.\n"),
  94          PACKAGE_DOTTED_VERSION, PACKAGE_GIT_COMMIT);
  95   exit (0);
  96 }
  97
  98 int
  99 main (int argc, char **argv)
 100 {
 101   int c;
 102   char *cmd = NULL;
 103   int cmd_argc = 0;
 104   char **cmd_argv = NULL;
 105   int (*cmd_func)(int, char **) = NULL;
 106
 107   /* Set up gettext */
 108 #if ENABLE_NLS
 109   setlocale (LC_ALL, "");
 110   bindtextdomain ("geda-gaf", LOCALEDIR);
 111   textdomain ("geda-gaf");
 112   bind_textdomain_codeset ("geda-gschem", "UTF-8");
 113 #endif
 114
 115   while (-1 != (c = getopt_long (argc, argv, short_options,
 116                                  long_options, NULL))) {
 117     switch (c) {
 118
 119     case 0:
 120       /* This is a long-form-only flag option, and has already been
 121        * dealt with by getopt_long(). */
 122       break;
 123
 124     case 2: /* --no-rcfiles */
 125       setenv ("GAF_INHIBIT_RCFILES", "1", 1);
 126       break;
 127
 128     case 'V':
 129       version ();
 130
 131     case 'h':
 132       usage ();
 133
 134     case '?':
 135       /* getopt_long already printed an error message */
 136       fprintf (stderr, _("\nRun `gaf --help' for more information.\n"));
 137       exit (1);
 138       break;
 139
 140     default:
 141       g_assert_not_reached ();
 142     }
 143   }
 144
 145   /* The next argument should be a command */
 146   if (optind == argc) {
 147     fprintf (stderr,
 148              _("ERROR: You must specify a command to run.\n"
 149                "\n"
 150                "Run `gaf --help' for more information.\n"));
 151     exit (1);
 152   }
 153
 154   cmd = argv[optind];
 155
 156   /* Look up the command */
 157   int i;
 158   for (i = 0; commands[i].name != NULL; i++) {
 159     if (strcmp (cmd, commands[i].name) == 0) {
 160       cmd_func = commands[i].func;
 161       break;
 162     }
 163   }
 164   if (cmd_func == NULL) {
 165     fprintf (stderr,
 166              _("ERROR: Unrecognised command `%s'.\n"
 167                "\n"
 168                "Run `gaf --help' for more information.\n"),
 169              cmd);
 170     exit (1);
 171   }
 172
 173   cmd_argc = argc - optind;
 174   cmd_argv = argv + optind;
 175   optind = 1;
 176
 177   return cmd_func (cmd_argc, cmd_argv);
 178 }