Don't skip dot files when cleaning cache

main.c

@@ -889,7 +889,7 @@ int main(int argc, char **argv)
 				continue;
 			}
 			start = fileidx;
-			while ((filename = r_readdir(&dir)) != NULL) {
+			while ((filename = r_readdir(&dir, true)) != NULL) {
 				check_add_file(filename, false);
 				free((void*) filename);
 			}

sxiv.h

@@ -364,7 +364,7 @@ void error(int, int, const char*, ...);
 void size_readable(float*, const char**);
 int r_opendir(r_dir_t*, const char*, bool);
 int r_closedir(r_dir_t*);
-char* r_readdir(r_dir_t*);
+char* r_readdir(r_dir_t*, bool);
 int r_mkdir(char*);
 
 

thumbs.c

@@ -131,7 +131,7 @@ void tns_clean_cache(tns_t *tns)
 
 	dirlen = strlen(cache_dir);
 
-	while ((cfile = r_readdir(&dir)) != NULL) {
+	while ((cfile = r_readdir(&dir, false)) != NULL) {
 		filename = cfile + dirlen;
 		delete = false;
 

util.c

@@ -134,7 +134,7 @@ int r_closedir(r_dir_t *rdir)
 	return ret;
 }
 
-char* r_readdir(r_dir_t *rdir)
+char* r_readdir(r_dir_t *rdir, bool skip_dotfiles)
 {
 	size_t len;
 	char *filename;
@@ -143,8 +143,14 @@ char* r_readdir(r_dir_t *rdir)
 
 	while (true) {
 		if (rdir->dir != NULL && (dentry = readdir(rdir->dir)) != NULL) {
-			if (dentry->d_name[0] == '.')
-				continue;
+			if (dentry->d_name[0] == '.') {
+				if (skip_dotfiles)
+					continue;
+				if (dentry->d_name[1] == '\0')
+					continue;
+				if (dentry->d_name[1] == '.' && dentry->d_name[2] == '\0')
+					continue;
+			}
 
 			len = strlen(rdir->name) + strlen(dentry->d_name) + 2;
 			filename = (char*) emalloc(len);