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     {"version", 0, 0, 'V'},
  55     {"verbose", 0, 0, 'v'},
  56     {"help", 0, 0, '?'},
  57     {NULL,0,0,0},
  58 };
  59 #else
  60 #if HAVE_GETOPT
  61 extern char *optarg;
  62 extern int optind, opterr, optopt;
  63 #endif
  64 #endif
  65
  66 static void
  67 usage (char *program)
  68 {
  69     fprintf (stderr, "usage: %s [-fvV?] [--force] [--verbose] [--version] [--help] [dirs]\n",
  70              program);
  71     fprintf (stderr, "Build font information caches in [dirs]\n"
  72              "(all directories in font configuration by default).\n");
  73     fprintf (stderr, "\n");
  74     fprintf (stderr, "  -f, --force          scan directories with apparently valid caches\n");
  75     fprintf (stderr, "  -v, --verbose        display status information while busy\n");
  76     fprintf (stderr, "  -V, --version        display font config version and exit\n");
  77     fprintf (stderr, "  -?, --help           display this help and exit\n");
  78     exit (1);
  79 }
  80
  81 static int
  82 nsubdirs (FcStrSet *set)
  83 {
  84     FcStrList   *list;
  85     int         n = 0;
  86
  87     list = FcStrListCreate (set);
  88     if (!list)
  89         return 0;
  90     while (FcStrListNext (list))
  91         n++;
  92     FcStrListDone (list);
  93     return n;
  94 }
  95
  96 static int
  97 scanDirs (FcStrList *list, FcConfig *config, char *program, FcBool force, FcBool verbose)
  98 {
  99     int         ret = 0;
 100     FcChar8     *dir;
 101     FcFontSet   *set;
 102     FcStrSet    *subdirs;
 103     FcStrList   *sublist;
 104     struct stat statb;
 105
 106     /*
 107      * Now scan all of the directories into separate databases
 108      * and write out the results
 109      */
 110     while ((dir = FcStrListNext (list)))
 111     {
 112         if (verbose)
 113         {
 114             printf ("%s: \"%s\": ", program, dir);
 115             fflush (stdout);
 116         }
 117         set = FcFontSetCreate ();
 118         if (!set)
 119         {
 120             fprintf (stderr, "Can't create font set\n");
 121             ret++;
 122             continue;
 123         }
 124         subdirs = FcStrSetCreate ();
 125         if (!subdirs)
 126         {
 127             fprintf (stderr, "Can't create directory set\n");
 128             ret++;
 129             continue;
 130         }
 131
 132         if (access ((char *) dir, W_OK) < 0)
 133         {
 134             switch (errno) {
 135             case ENOENT:
 136             case ENOTDIR:
 137                 if (verbose)
 138                     printf ("skipping, no such directory\n");
 139                 break;
 140             case EACCES:
 141             case EROFS:
 142                 if (verbose)
 143                     printf ("skipping, no write access\n");
 144                 break;
 145             default:
 146                 fprintf (stderr, "\"%s\": ", dir);
 147                 perror ("");
 148                 ret++;
 149             }
 150             continue;
 151         }
 152         if (stat ((char *) dir, &statb) == -1)
 153         {
 154             fprintf (stderr, "\"%s\": ", dir);
 155             perror ("");
 156             ret++;
 157             continue;
 158         }
 159         if (!S_ISDIR (statb.st_mode))
 160         {
 161             fprintf (stderr, "\"%s\": not a directory, skipping\n", dir);
 162             continue;
 163         }
 164         if (!FcDirScan (set, subdirs, 0, FcConfigGetBlanks (config), dir, force))
 165         {
 166             fprintf (stderr, "\"%s\": error scanning\n", dir);
 167             ret++;
 168             continue;
 169         }
 170         if (!force && FcDirCacheValid (dir))
 171         {
 172             if (verbose)
 173                 printf ("skipping, %d fonts, %d dirs\n",
 174                         set->nfont, nsubdirs(subdirs));
 175         }
 176         else
 177         {
 178             if (verbose)
 179                 printf ("caching, %d fonts, %d dirs\n",
 180                         set->nfont, nsubdirs (subdirs));
 181             if (!FcDirSave (set, subdirs, dir))
 182             {
 183                 fprintf (stderr, "Can't save cache in \"%s\"\n", dir);
 184                 ret++;
 185             }
 186         }
 187         FcFontSetDestroy (set);
 188         sublist = FcStrListCreate (subdirs);
 189         if (!sublist)
 190         {
 191             fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir);
 192             ret++;
 193             continue;
 194         }
 195         ret += scanDirs (sublist, config, program, force, verbose);
 196         FcStrSetDestroy (subdirs);
 197     }
 198     FcStrListDone (list);
 199     return ret;
 200 }
 201
 202 int
 203 main (int argc, char **argv)
 204 {
 205     FcStrSet    *dirs;
 206     FcStrList   *list;
 207     FcBool      verbose = FcFalse;
 208     FcBool      force = FcFalse;
 209     FcConfig    *config;
 210     int         i;
 211     int         ret;
 212 #if HAVE_GETOPT_LONG || HAVE_GETOPT
 213     int         c;
 214
 215 #if HAVE_GETOPT_LONG
 216     while ((c = getopt_long (argc, argv, "fVv?", longopts, NULL)) != -1)
 217 #else
 218     while ((c = getopt (argc, argv, "fVv?")) != -1)
 219 #endif
 220     {
 221         switch (c) {
 222         case 'f':
 223             force = FcTrue;
 224             break;
 225         case 'V':
 226             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 227                      FC_MAJOR, FC_MINOR, FC_REVISION);
 228             exit (0);
 229         case 'v':
 230             verbose = FcTrue;
 231             break;
 232         default:
 233             usage (argv[0]);
 234         }
 235     }
 236     i = optind;
 237 #else
 238     i = 1;
 239 #endif
 240
 241     config = FcInitLoadConfig ();
 242     if (!config)
 243     {
 244         fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
 245         return 1;
 246     }
 247     if (argv[i])
 248     {
 249         dirs = FcStrSetCreate ();
 250         if (!dirs)
 251         {
 252             fprintf (stderr, "%s: Can't create list of directories\n",
 253                      argv[0]);
 254             return 1;
 255         }
 256         while (argv[i])
 257         {
 258             if (!FcStrSetAdd (dirs, (FcChar8 *) argv[i]))
 259             {
 260                 fprintf (stderr, "%s: Can't add directory\n", argv[0]);
 261                 return 1;
 262             }
 263             i++;
 264         }
 265         list = FcStrListCreate (dirs);
 266         FcStrSetDestroy (dirs);
 267     }
 268     else
 269         list = FcConfigGetConfigDirs (config);
 270     ret = scanDirs (list, config, argv[0], force, verbose);
 271     if (verbose)
 272         printf ("%s: %s\n", argv[0], ret ? "failed" : "succeeded");
 273     return ret;
 274 }