fc-cache/fc-cache.c

   1 /*
   2  * $XFree86: xc/lib/fontconfig/fc-cache/fc-cache.c,v 1.8tsi Exp $
   3  *
   4  * Copyright © 2002 Keith Packard, member of The XFree86 Project, Inc.
   5  *
   6  * Permission to use, copy, modify, distribute, and sell this software and its
   7  * documentation for any purpose is hereby granted without fee, provided that
   8  * the above copyright notice appear in all copies and that both that
   9  * copyright notice and this permission notice appear in supporting
  10  * documentation, and that the name of Keith Packard not be used in
  11  * advertising or publicity pertaining to distribution of the software without
  12  * specific, written prior permission.  Keith Packard makes no
  13  * representations about the suitability of this software for any purpose.  It
  14  * is provided "as is" without express or implied warranty.
  15  *
  16  * KEITH PACKARD DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE,
  17  * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, IN NO
  18  * EVENT SHALL KEITH PACKARD BE LIABLE FOR ANY SPECIAL, INDIRECT OR
  19  * CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE,
  20  * DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER
  21  * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR
  22  * PERFORMANCE OF THIS SOFTWARE.
  23  */
  24
  25 #include <fontconfig/fontconfig.h>
  26 #include <stdio.h>
  27 #include <stdlib.h>
  28 #include <unistd.h>
  29 #include <sys/types.h>
  30 #include <sys/stat.h>
  31 #include <errno.h>
  32 #ifdef HAVE_CONFIG_H
  33 #include <config.h>
  34 #else
  35 #ifdef linux
  36 #define HAVE_GETOPT_LONG 1
  37 #endif
  38 #define HAVE_GETOPT 1
  39 #endif
  40
  41 #ifndef HAVE_GETOPT
  42 #define HAVE_GETOPT 0
  43 #endif
  44 #ifndef HAVE_GETOPT_LONG
  45 #define HAVE_GETOPT_LONG 0
  46 #endif
  47
  48 #if HAVE_GETOPT_LONG
  49 #undef  _GNU_SOURCE
  50 #define _GNU_SOURCE
  51 #include <getopt.h>
  52 const struct option longopts[] = {
  53     {"force", 0, 0, 'f'},
  54     {"system-only", 0, 0, 's'},
  55     {"version", 0, 0, 'V'},
  56     {"verbose", 0, 0, 'v'},
  57     {"help", 0, 0, '?'},
  58     {NULL,0,0,0},
  59 };
  60 #else
  61 #if HAVE_GETOPT
  62 extern char *optarg;
  63 extern int optind, opterr, optopt;
  64 #endif
  65 #endif
  66
  67 static void
  68 usage (char *program)
  69 {
  70     fprintf (stderr, "usage: %s [-fvV?] [--force] [--verbose] [--version] [--help] [dirs]\n",
  71              program);
  72     fprintf (stderr, "Build font information caches in [dirs]\n"
  73              "(all directories in font configuration by default).\n");
  74     fprintf (stderr, "\n");
  75     fprintf (stderr, "  -f, --force          scan directories with apparently valid caches\n");
  76     fprintf (stderr, "  -s, --system-only    scan system-wide directories only\n");
  77     fprintf (stderr, "  -v, --verbose        display status information while busy\n");
  78     fprintf (stderr, "  -V, --version        display font config version and exit\n");
  79     fprintf (stderr, "  -?, --help           display this help and exit\n");
  80     exit (1);
  81 }
  82
  83 static int
  84 nsubdirs (FcStrSet *set)
  85 {
  86     FcStrList   *list;
  87     int         n = 0;
  88
  89     list = FcStrListCreate (set);
  90     if (!list)
  91         return 0;
  92     while (FcStrListNext (list))
  93         n++;
  94     FcStrListDone (list);
  95     return n;
  96 }
  97
  98 static int
  99 scanDirs (FcStrList *list, FcConfig *config, char *program, FcBool force, FcBool verbose)
 100 {
 101     int         ret = 0;
 102     FcChar8     *dir;
 103     FcFontSet   *set;
 104     FcStrSet    *subdirs;
 105     FcStrList   *sublist;
 106     struct stat statb;
 107
 108     /*
 109      * Now scan all of the directories into separate databases
 110      * and write out the results
 111      */
 112     while ((dir = FcStrListNext (list)))
 113     {
 114         if (verbose)
 115         {
 116             printf ("%s: \"%s\": ", program, dir);
 117             fflush (stdout);
 118         }
 119         set = FcFontSetCreate ();
 120         if (!set)
 121         {
 122             fprintf (stderr, "Can't create font set\n");
 123             ret++;
 124             continue;
 125         }
 126         subdirs = FcStrSetCreate ();
 127         if (!subdirs)
 128         {
 129             fprintf (stderr, "Can't create directory set\n");
 130             ret++;
 131             continue;
 132         }
 133
 134         if (access ((char *) dir, W_OK) < 0)
 135         {
 136             switch (errno) {
 137             case ENOENT:
 138             case ENOTDIR:
 139                 if (verbose)
 140                     printf ("skipping, no such directory\n");
 141                 break;
 142             case EACCES:
 143             case EROFS:
 144                 if (verbose)
 145                     printf ("skipping, no write access\n");
 146                 break;
 147             default:
 148                 fprintf (stderr, "\"%s\": ", dir);
 149                 perror ("");
 150                 ret++;
 151             }
 152             continue;
 153         }
 154         if (stat ((char *) dir, &statb) == -1)
 155         {
 156             fprintf (stderr, "\"%s\": ", dir);
 157             perror ("");
 158             ret++;
 159             continue;
 160         }
 161         if (!S_ISDIR (statb.st_mode))
 162         {
 163             fprintf (stderr, "\"%s\": not a directory, skipping\n", dir);
 164             continue;
 165         }
 166         if (!FcDirScan (set, subdirs, 0, FcConfigGetBlanks (config), dir, force))
 167         {
 168             fprintf (stderr, "\"%s\": error scanning\n", dir);
 169             ret++;
 170             continue;
 171         }
 172         if (!force && FcDirCacheValid (dir))
 173         {
 174             if (verbose)
 175                 printf ("skipping, %d fonts, %d dirs\n",
 176                         set->nfont, nsubdirs(subdirs));
 177         }
 178         else
 179         {
 180             if (verbose)
 181                 printf ("caching, %d fonts, %d dirs\n",
 182                         set->nfont, nsubdirs (subdirs));
 183             if (!FcDirSave (set, subdirs, dir))
 184             {
 185                 fprintf (stderr, "Can't save cache in \"%s\"\n", dir);
 186                 ret++;
 187             }
 188         }
 189         FcFontSetDestroy (set);
 190         sublist = FcStrListCreate (subdirs);
 191         if (!sublist)
 192         {
 193             fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir);
 194             ret++;
 195             continue;
 196         }
 197         ret += scanDirs (sublist, config, program, force, verbose);
 198         FcStrSetDestroy (subdirs);
 199     }
 200     FcStrListDone (list);
 201     return ret;
 202 }
 203
 204 int
 205 main (int argc, char **argv)
 206 {
 207     FcStrSet    *dirs;
 208     FcStrList   *list;
 209     FcBool      verbose = FcFalse;
 210     FcBool      force = FcFalse;
 211     FcBool      systemOnly = FcFalse;
 212     FcConfig    *config;
 213     int         i;
 214     int         ret;
 215 #if HAVE_GETOPT_LONG || HAVE_GETOPT
 216     int         c;
 217
 218 #if HAVE_GETOPT_LONG
 219     while ((c = getopt_long (argc, argv, "fVv?", longopts, NULL)) != -1)
 220 #else
 221     while ((c = getopt (argc, argv, "fVv?")) != -1)
 222 #endif
 223     {
 224         switch (c) {
 225         case 'f':
 226             force = FcTrue;
 227             break;
 228         case 's':
 229             systemOnly = FcTrue;
 230             break;
 231         case 'V':
 232             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 233                      FC_MAJOR, FC_MINOR, FC_REVISION);
 234             exit (0);
 235         case 'v':
 236             verbose = FcTrue;
 237             break;
 238         default:
 239             usage (argv[0]);
 240         }
 241     }
 242     i = optind;
 243 #else
 244     i = 1;
 245 #endif
 246
 247     if (systemOnly)
 248         FcConfigEnableHome (FcFalse);
 249     config = FcInitLoadConfig ();
 250     if (!config)
 251     {
 252         fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
 253         return 1;
 254     }
 255     if (argv[i])
 256     {
 257         dirs = FcStrSetCreate ();
 258         if (!dirs)
 259         {
 260             fprintf (stderr, "%s: Can't create list of directories\n",
 261                      argv[0]);
 262             return 1;
 263         }
 264         while (argv[i])
 265         {
 266             if (!FcStrSetAdd (dirs, (FcChar8 *) argv[i]))
 267             {
 268                 fprintf (stderr, "%s: Can't add directory\n", argv[0]);
 269                 return 1;
 270             }
 271             i++;
 272         }
 273         list = FcStrListCreate (dirs);
 274         FcStrSetDestroy (dirs);
 275     }
 276     else
 277         list = FcConfigGetConfigDirs (config);
 278     ret = scanDirs (list, config, argv[0], force, verbose);
 279     if (verbose)
 280         printf ("%s: %s\n", argv[0], ret ? "failed" : "succeeded");
 281     return ret;
 282 }