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1 | /* | |
2 | * $RCSId: xc/lib/fontconfig/fc-cache/fc-cache.c,v 1.8tsi Exp $ | |
3 | * | |
4 | * Copyright © 2002 Keith Packard | |
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 | {"really-force", 0, 0, 'r'}, | |
55 | {"system-only", 0, 0, 's'}, | |
56 | {"version", 0, 0, 'V'}, | |
57 | {"verbose", 0, 0, 'v'}, | |
58 | {"help", 0, 0, '?'}, | |
59 | {NULL,0,0,0}, | |
60 | }; | |
61 | #else | |
62 | #if HAVE_GETOPT | |
63 | extern char *optarg; | |
64 | extern int optind, opterr, optopt; | |
65 | #endif | |
66 | #endif | |
67 | ||
68 | static void | |
69 | usage (char *program) | |
70 | { | |
71 | #if HAVE_GETOPT_LONG | |
72 | fprintf (stderr, "usage: %s [-frsvV?] [--force|--really-force] [--system-only] [--verbose] [--version] [--help] [dirs]\n", | |
73 | program); | |
74 | #else | |
75 | fprintf (stderr, "usage: %s [-frsvV?] [dirs]\n", | |
76 | program); | |
77 | #endif | |
78 | fprintf (stderr, "Build font information caches in [dirs]\n" | |
79 | "(all directories in font configuration by default).\n"); | |
80 | fprintf (stderr, "\n"); | |
81 | #if HAVE_GETOPT_LONG | |
82 | fprintf (stderr, " -f, --force scan directories with apparently valid caches\n"); | |
83 | fprintf (stderr, " -r, --really-force erase all existing caches, then rescan\n"); | |
84 | fprintf (stderr, " -s, --system-only scan system-wide directories only\n"); | |
85 | fprintf (stderr, " -v, --verbose display status information while busy\n"); | |
86 | fprintf (stderr, " -V, --version display font config version and exit\n"); | |
87 | fprintf (stderr, " -?, --help display this help and exit\n"); | |
88 | #else | |
89 | fprintf (stderr, " -f (force) scan directories with apparently valid caches\n"); | |
90 | fprintf (stderr, " -r, (really force) erase all existing caches, then rescan\n"); | |
91 | fprintf (stderr, " -s (system) scan system-wide directories only\n"); | |
92 | fprintf (stderr, " -v (verbose) display status information while busy\n"); | |
93 | fprintf (stderr, " -V (version) display font config version and exit\n"); | |
94 | fprintf (stderr, " -? (help) display this help and exit\n"); | |
95 | #endif | |
96 | exit (1); | |
97 | } | |
98 | ||
99 | static FcStrSet *processed_dirs; | |
100 | ||
101 | static int | |
102 | nsubdirs (FcStrSet *set) | |
103 | { | |
104 | FcStrList *list; | |
105 | int n = 0; | |
106 | ||
107 | list = FcStrListCreate (set); | |
108 | if (!list) | |
109 | return 0; | |
110 | while (FcStrListNext (list)) | |
111 | n++; | |
112 | FcStrListDone (list); | |
113 | return n; | |
114 | } | |
115 | ||
116 | static int | |
117 | scanDirs (FcStrList *list, FcConfig *config, char *program, FcBool force, FcBool really_force, FcBool verbose) | |
118 | { | |
119 | int ret = 0; | |
120 | const FcChar8 *dir; | |
121 | const FcChar8 *dir_orig; | |
122 | FcFontSet *set; | |
123 | FcStrSet *subdirs; | |
124 | FcStrList *sublist; | |
125 | struct stat statb; | |
126 | ||
127 | /* | |
128 | * Now scan all of the directories into separate databases | |
129 | * and write out the results | |
130 | */ | |
131 | while ((dir_orig = FcStrListNext (list))) | |
132 | { | |
133 | dir = FcConfigNormalizeFontDir (config, dir_orig); | |
134 | ||
135 | if (verbose) | |
136 | { | |
137 | printf ("%s: \"%s\": ", program, dir ? dir : dir_orig); | |
138 | fflush (stdout); | |
139 | } | |
140 | ||
141 | if (!dir) | |
142 | { | |
143 | if (verbose) | |
144 | printf ("skipping, no such directory\n"); | |
145 | continue; | |
146 | } | |
147 | ||
148 | if (FcStrSetMember (processed_dirs, dir)) | |
149 | { | |
150 | if (verbose) | |
151 | printf ("skipping, looped directory detected\n"); | |
152 | continue; | |
153 | } | |
154 | ||
155 | set = FcFontSetCreate (); | |
156 | if (!set) | |
157 | { | |
158 | fprintf (stderr, "Can't create font set\n"); | |
159 | ret++; | |
160 | continue; | |
161 | } | |
162 | subdirs = FcStrSetCreate (); | |
163 | if (!subdirs) | |
164 | { | |
165 | fprintf (stderr, "Can't create directory set\n"); | |
166 | ret++; | |
167 | FcFontSetDestroy (set); | |
168 | continue; | |
169 | } | |
170 | ||
171 | if (access ((char *) dir, W_OK) < 0) | |
172 | { | |
173 | switch (errno) { | |
174 | case ENOENT: | |
175 | case ENOTDIR: | |
176 | if (verbose) | |
177 | printf ("skipping, no such directory\n"); | |
178 | FcFontSetDestroy (set); | |
179 | FcStrSetDestroy (subdirs); | |
180 | continue; | |
181 | case EACCES: | |
182 | case EROFS: | |
183 | /* That's ok, caches go to /var anyway. */ | |
184 | /* Ideally we'd do an access on the hashed_name. */ | |
185 | /* But we hid that behind an abstraction barrier. */ | |
186 | break; | |
187 | default: | |
188 | fprintf (stderr, "\"%s\": ", dir); | |
189 | perror (""); | |
190 | ret++; | |
191 | ||
192 | FcFontSetDestroy (set); | |
193 | FcStrSetDestroy (subdirs); | |
194 | continue; | |
195 | } | |
196 | } | |
197 | if (stat ((char *) dir, &statb) == -1) | |
198 | { | |
199 | fprintf (stderr, "\"%s\": ", dir); | |
200 | perror (""); | |
201 | FcFontSetDestroy (set); | |
202 | FcStrSetDestroy (subdirs); | |
203 | ret++; | |
204 | continue; | |
205 | } | |
206 | if (!S_ISDIR (statb.st_mode)) | |
207 | { | |
208 | fprintf (stderr, "\"%s\": not a directory, skipping\n", dir); | |
209 | FcFontSetDestroy (set); | |
210 | FcStrSetDestroy (subdirs); | |
211 | continue; | |
212 | } | |
213 | ||
214 | if (really_force) | |
215 | FcDirCacheUnlink (dir, config); | |
216 | ||
217 | if (!FcDirScanConfig (set, subdirs, 0, FcConfigGetBlanks (config), dir, force, config)) | |
218 | { | |
219 | fprintf (stderr, "\"%s\": error scanning\n", dir); | |
220 | FcFontSetDestroy (set); | |
221 | FcStrSetDestroy (subdirs); | |
222 | ret++; | |
223 | continue; | |
224 | } | |
225 | if (!force && FcDirCacheValid (dir) && FcDirCacheHasCurrentArch (dir)) | |
226 | { | |
227 | if (verbose) | |
228 | printf ("skipping, %d fonts, %d dirs\n", | |
229 | set->nfont, nsubdirs(subdirs)); | |
230 | } | |
231 | else | |
232 | { | |
233 | if (verbose) | |
234 | printf ("caching, %d fonts, %d dirs\n", | |
235 | set->nfont, nsubdirs (subdirs)); | |
236 | ||
237 | /* This is the only reason we can't combine | |
238 | * Valid w/HasCurrentArch... */ | |
239 | if (!FcDirCacheValid (dir)) | |
240 | if (!FcDirCacheUnlink (dir, config)) | |
241 | ret++; | |
242 | ||
243 | if (!FcDirSave (set, subdirs, dir)) | |
244 | { | |
245 | if (!ret) | |
246 | fprintf (stderr, "Caches are currently saved to \"%s\"\n", PKGCACHEDIR); | |
247 | fprintf (stderr, "Can't save cache for \"%s\"\n", dir); | |
248 | ret++; | |
249 | } | |
250 | } | |
251 | FcFontSetDestroy (set); | |
252 | sublist = FcStrListCreate (subdirs); | |
253 | FcStrSetDestroy (subdirs); | |
254 | if (!sublist) | |
255 | { | |
256 | fprintf (stderr, "Can't create subdir list in \"%s\"\n", dir); | |
257 | ret++; | |
258 | continue; | |
259 | } | |
260 | FcStrSetAdd (processed_dirs, dir); | |
261 | ret += scanDirs (sublist, config, program, force, really_force, verbose); | |
262 | } | |
263 | FcStrListDone (list); | |
264 | return ret; | |
265 | } | |
266 | ||
267 | int | |
268 | main (int argc, char **argv) | |
269 | { | |
270 | FcStrSet *dirs; | |
271 | FcStrList *list; | |
272 | FcBool verbose = FcFalse; | |
273 | FcBool force = FcFalse; | |
274 | FcBool really_force = FcFalse; | |
275 | FcBool systemOnly = FcFalse; | |
276 | FcConfig *config; | |
277 | int i; | |
278 | int ret; | |
279 | #if HAVE_GETOPT_LONG || HAVE_GETOPT | |
280 | int c; | |
281 | ||
282 | #if HAVE_GETOPT_LONG | |
283 | while ((c = getopt_long (argc, argv, "frsVv?", longopts, NULL)) != -1) | |
284 | #else | |
285 | while ((c = getopt (argc, argv, "frsVv?")) != -1) | |
286 | #endif | |
287 | { | |
288 | switch (c) { | |
289 | case 'r': | |
290 | really_force = FcTrue; | |
291 | /* fall through */ | |
292 | case 'f': | |
293 | force = FcTrue; | |
294 | break; | |
295 | case 's': | |
296 | systemOnly = FcTrue; | |
297 | break; | |
298 | case 'V': | |
299 | fprintf (stderr, "fontconfig version %d.%d.%d\n", | |
300 | FC_MAJOR, FC_MINOR, FC_REVISION); | |
301 | exit (0); | |
302 | case 'v': | |
303 | verbose = FcTrue; | |
304 | break; | |
305 | default: | |
306 | usage (argv[0]); | |
307 | } | |
308 | } | |
309 | i = optind; | |
310 | #else | |
311 | i = 1; | |
312 | #endif | |
313 | ||
314 | if (systemOnly) | |
315 | FcConfigEnableHome (FcFalse); | |
316 | config = FcInitLoadConfig (); | |
317 | if (!config) | |
318 | { | |
319 | fprintf (stderr, "%s: Can't init font config library\n", argv[0]); | |
320 | return 1; | |
321 | } | |
322 | FcConfigSetCurrent (config); | |
323 | ||
324 | if (argv[i]) | |
325 | { | |
326 | dirs = FcStrSetCreate (); | |
327 | if (!dirs) | |
328 | { | |
329 | fprintf (stderr, "%s: Can't create list of directories\n", | |
330 | argv[0]); | |
331 | return 1; | |
332 | } | |
333 | while (argv[i]) | |
334 | { | |
335 | if (!FcStrSetAdd (dirs, (FcChar8 *) argv[i])) | |
336 | { | |
337 | fprintf (stderr, "%s: Can't add directory\n", argv[0]); | |
338 | return 1; | |
339 | } | |
340 | i++; | |
341 | } | |
342 | list = FcStrListCreate (dirs); | |
343 | FcStrSetDestroy (dirs); | |
344 | } | |
345 | else | |
346 | list = FcConfigGetConfigDirs (config); | |
347 | ||
348 | if ((processed_dirs = FcStrSetCreate()) == NULL) { | |
349 | fprintf(stderr, "Cannot malloc\n"); | |
350 | return 1; | |
351 | } | |
352 | ||
353 | ret = scanDirs (list, config, argv[0], force, really_force, verbose); | |
354 | ||
355 | FcStrSetDestroy (processed_dirs); | |
356 | ||
357 | /* | |
358 | * Now we need to sleep a second (or two, to be extra sure), to make | |
359 | * sure that timestamps for changes after this run of fc-cache are later | |
360 | * then any timestamps we wrote. We don't use gettimeofday() because | |
361 | * sleep(3) can't be interrupted by a signal here -- this isn't in the | |
362 | * library, and there aren't any signals flying around here. | |
363 | */ | |
364 | FcConfigDestroy (config); | |
365 | sleep (2); | |
366 | if (verbose) | |
367 | printf ("%s: %s\n", argv[0], ret ? "failed" : "succeeded"); | |
368 | return ret; | |
369 | } |