aboutsummaryrefslogtreecommitdiff
path: root/fontconfig/src/fccache.c
diff options
context:
space:
mode:
Diffstat (limited to 'fontconfig/src/fccache.c')
-rw-r--r--fontconfig/src/fccache.c91
1 files changed, 91 insertions, 0 deletions
diff --git a/fontconfig/src/fccache.c b/fontconfig/src/fccache.c
index 0fc599583..d3842ddff 100644
--- a/fontconfig/src/fccache.c
+++ b/fontconfig/src/fccache.c
@@ -1021,6 +1021,97 @@ FcDirCacheWrite (FcCache *cache, FcConfig *config)
return FcFalse;
}
+FcBool
+FcDirCacheClean (const FcChar8 *cache_dir, FcBool verbose)
+{
+ DIR *d;
+ struct dirent *ent;
+ FcChar8 *dir_base;
+ FcBool ret = FcTrue;
+ FcBool remove;
+ FcCache *cache;
+ struct stat target_stat;
+
+ dir_base = FcStrPlus (cache_dir, (FcChar8 *) FC_DIR_SEPARATOR_S);
+ if (!dir_base)
+ {
+ fprintf (stderr, "Fontconfig error: %s: out of memory\n", cache_dir);
+ return FcFalse;
+ }
+ if (access ((char *) cache_dir, W_OK) != 0)
+ {
+ if (verbose || FcDebug () & FC_DBG_CACHE)
+ printf ("%s: not cleaning %s cache directory\n", cache_dir,
+ access ((char *) cache_dir, F_OK) == 0 ? "unwritable" : "non-existent");
+ goto bail0;
+ }
+ if (verbose || FcDebug () & FC_DBG_CACHE)
+ printf ("%s: cleaning cache directory\n", cache_dir);
+ d = opendir ((char *) cache_dir);
+ if (!d)
+ {
+ perror ((char *) cache_dir);
+ ret = FcFalse;
+ goto bail0;
+ }
+ while ((ent = readdir (d)))
+ {
+ FcChar8 *file_name;
+ const FcChar8 *target_dir;
+
+ if (ent->d_name[0] == '.')
+ continue;
+ /* skip cache files for different architectures and */
+ /* files which are not cache files at all */
+ if (strlen(ent->d_name) != 32 + strlen ("-" FC_ARCHITECTURE FC_CACHE_SUFFIX) ||
+ strcmp(ent->d_name + 32, "-" FC_ARCHITECTURE FC_CACHE_SUFFIX))
+ continue;
+
+ file_name = FcStrPlus (dir_base, (FcChar8 *) ent->d_name);
+ if (!file_name)
+ {
+ fprintf (stderr, "Fontconfig error: %s: allocation failure\n", cache_dir);
+ ret = FcFalse;
+ break;
+ }
+ remove = FcFalse;
+ cache = FcDirCacheLoadFile (file_name, NULL);
+ if (!cache)
+ {
+ if (verbose || FcDebug () & FC_DBG_CACHE)
+ printf ("%s: invalid cache file: %s\n", cache_dir, ent->d_name);
+ remove = FcTrue;
+ }
+ else
+ {
+ target_dir = FcCacheDir (cache);
+ if (stat ((char *) target_dir, &target_stat) < 0)
+ {
+ if (verbose || FcDebug () & FC_DBG_CACHE)
+ printf ("%s: %s: missing directory: %s \n",
+ cache_dir, ent->d_name, target_dir);
+ remove = FcTrue;
+ }
+ }
+ if (remove)
+ {
+ if (unlink ((char *) file_name) < 0)
+ {
+ perror ((char *) file_name);
+ ret = FcFalse;
+ }
+ }
+ FcDirCacheUnload (cache);
+ FcStrFree (file_name);
+ }
+
+ closedir (d);
+ bail0:
+ FcStrFree (dir_base);
+
+ return ret;
+}
+
/*
* Hokey little macro trick to permit the definitions of C functions
* with the same name as CPP macros