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 (stat ((char *) dir, &statb) == -1)
 133         {
 134             if (errno == ENOENT || errno == ENOTDIR)
 135             {
 136                 if (verbose)
 137                     printf ("no such directory, skipping\n");
 138             }
 139             else
 140             {
 141                 fprintf (stderr, "\"%s\": ", dir);
 142                 perror ("");
 143                 ret++;
 144             }
 145             continue;
 146         }
 147         if (!S_ISDIR (statb.st_mode))
 148         {
 149             fprintf (stderr, "\"%s\": not a directory, skipping\n", dir);
 150             continue;
 151         }
 152         if (!FcDirScan (set, subdirs, 0, FcConfigGetBlanks (config), dir, force))
 153         {
 154             fprintf (stderr, "\"%s\": error scanning\n", dir);
 155             ret++;
 156             continue;
 157         }
 158         if (!force && FcDirCacheValid (dir))
 159         {
 160             if (verbose)
 161                 printf ("skipping, %d fonts, %d dirs\n",
 162                         set->nfont, nsubdirs(subdirs));
 163         }
 164         else
 165         {
 166             if (verbose)
 167                 printf ("caching, %d fonts, %d dirs\n",
 168                         set->nfont, nsubdirs (subdirs));
 169             if (!FcDirSave (set, subdirs, dir))
 170             {
 171                 fprintf (stderr, "Can't save cache in \"%s\"\n", dir);
 172                 ret++;
 173             }
 174         }
 175         FcFontSetDestroy (set);
 176         sublist = FcStrListCreate (subdirs);
 177         if (!sublist)
 178         {
 179             fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir);
 180             ret++;
 181             continue;
 182         }
 183         ret += scanDirs (sublist, config, program, force, verbose);
 184         FcStrSetDestroy (subdirs);
 185     }
 186     FcStrListDone (list);
 187     return ret;
 188 }
 189
 190 int
 191 main (int argc, char **argv)
 192 {
 193     FcStrSet    *dirs;
 194     FcStrList   *list;
 195     FcBool      verbose = FcFalse;
 196     FcBool      force = FcFalse;
 197     FcConfig    *config;
 198     int         i;
 199     int         ret;
 200 #if HAVE_GETOPT_LONG || HAVE_GETOPT
 201     int         c;
 202
 203 #if HAVE_GETOPT_LONG
 204     while ((c = getopt_long (argc, argv, "fVv?", longopts, NULL)) != -1)
 205 #else
 206     while ((c = getopt (argc, argv, "fVv?")) != -1)
 207 #endif
 208     {
 209         switch (c) {
 210         case 'f':
 211             force = FcTrue;
 212             break;
 213         case 'V':
 214             fprintf (stderr, "fontconfig version %d.%d.%d\n",
 215                      FC_MAJOR, FC_MINOR, FC_REVISION);
 216             exit (0);
 217         case 'v':
 218             verbose = FcTrue;
 219             break;
 220         default:
 221             usage (argv[0]);
 222         }
 223     }
 224     i = optind;
 225 #else
 226     i = 1;
 227 #endif
 228
 229     config = FcInitLoadConfig ();
 230     if (!config)
 231     {
 232         fprintf (stderr, "%s: Can't init font config library\n", argv[0]);
 233         return 1;
 234     }
 235     if (argv[i])
 236     {
 237         dirs = FcStrSetCreate ();
 238         if (!dirs)
 239         {
 240             fprintf (stderr, "%s: Can't create list of directories\n",
 241                      argv[0]);
 242             return 1;
 243         }
 244         while (argv[i])
 245         {
 246             if (!FcStrSetAdd (dirs, (FcChar8 *) argv[i]))
 247             {
 248                 fprintf (stderr, "%s: Can't add directory\n", argv[0]);
 249                 return 1;
 250             }
 251             i++;
 252         }
 253         list = FcStrListCreate (dirs);
 254         FcStrSetDestroy (dirs);
 255     }
 256     else
 257         list = FcConfigGetConfigDirs (config);
 258     ret = scanDirs (list, config, argv[0], force, verbose);
 259     if (verbose)
 260         printf ("%s: %s\n", argv[0], ret ? "failed" : "succeeded");
 261     return ret;
 262 }