bin/cachegen.c

   1 /*****************************************************************************
   2  * cachegen.c: LibVLC plugins cache generator
   3  *****************************************************************************
   4  * Copyright (C) 2010 Rémi Denis-Courmont
   5  *
   6  * This program is free software; you can redistribute it and/or modify
   7  * it under the terms of the GNU General Public License as published by
   8  * the Free Software Foundation; either version 2 of the License, or
   9  * (at your option) any later version.
  10  *
  11  * This program is distributed in the hope that it will be useful,
  12  * but WITHOUT ANY WARRANTY; without even the implied warranty of
  13  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  14  * GNU General Public License for more details.
  15  *
  16  * You should have received a copy of the GNU General Public License
  17  * along with this program; if not, write to the Free Software
  18  * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston MA 02110-1301, USA.
  19  *****************************************************************************/
  20
  21 #ifdef HAVE_CONFIG_H
  22 # include "config.h"
  23 #endif
  24
  25 #include <vlc/vlc.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <stdbool.h>
  29
  30 #ifdef HAVE_SETLOCALE
  31 # include <locale.h>
  32 #endif
  33
  34 #ifdef HAVE_GETOPT_H
  35 # include <getopt.h>
  36 #endif
  37
  38 static void version (void)
  39 {
  40     puts ("LibVLC plugins cache generation version "VERSION);
  41 }
  42
  43 static void usage (const char *path)
  44 {
  45     printf (
  46 "Usage: %s [-f] <path>\n"
  47 "Generate the LibVLC plugins cache for the specified plugins directory.\n"
  48 " -f, --force  forcefully reset the plugin cache (if it exists)\n",
  49             path);
  50 }
  51
  52 /* Explicit HACK */
  53 extern void LocaleFree (const char *);
  54 extern char *FromLocale (const char *);
  55
  56 int main (int argc, char *argv[])
  57 {
  58     static const struct option opts[] =
  59     {
  60         { "force",      no_argument,       NULL, 'f' },
  61         { "help",       no_argument,       NULL, 'h' },
  62         { "version",    no_argument,       NULL, 'V' },
  63         { NULL,         no_argument,       NULL, '\0'}
  64     };
  65
  66 #ifdef HAVE_SETLOCALE
  67     setlocale (LC_CTYPE, ""); /* needed by FromLocale() */
  68 #endif
  69
  70     int c;
  71     bool force = false;
  72
  73     while ((c = getopt_long (argc, argv, "fhV", opts, NULL)) != -1)
  74         switch (c)
  75         {
  76             case 'f':
  77                 force = true;
  78                 break;
  79             case 'h':
  80                 usage (argv[0]);
  81                 return 0;
  82             case 'V':
  83                 version ();
  84                 return 0;
  85             default:
  86                 usage (argv[0]);
  87                 return 1;
  88         }
  89
  90     for (int i = optind; i < argc; i++)
  91     {
  92         /* Note that FromLocale() can be used before libvlc is initialized */
  93         const char *path = FromLocale (argv[i]);
  94         char *arg;
  95
  96         if (asprintf (&arg, "--plugin-path=%s", path) == -1)
  97             abort ();
  98
  99         const char *vlc_argv[5];
 100         int vlc_argc = 0;
 101
 102         vlc_argv[vlc_argc++] = "--quiet";
 103         if (force)
 104             vlc_argv[vlc_argc++] = "--reset-plugins-cache";
 105         vlc_argv[vlc_argc++] = arg;
 106         vlc_argv[vlc_argc++] = "--"; /* end of options */
 107         vlc_argv[vlc_argc] = NULL;
 108
 109         libvlc_instance_t *vlc = libvlc_new (vlc_argc, vlc_argv);
 110         if (vlc != NULL)
 111             libvlc_release (vlc);
 112         free (arg);
 113         if (vlc == NULL)
 114             fprintf (stderr, "No plugins in %s\n", path);
 115         LocaleFree (path);
 116         if (vlc == NULL)
 117             return 1;
 118     }
 119
 120     return 0;
 121 }