plugins/python-renderer/src/plugin-main.c

@@ -39,6 +39,20 @@
  */
 static PyObject *p_module = NULL;
 
+static int check_file_exists(const char *path)
+{
+	FILE *file;
+	int ret = -1;
+
+	file = fopen(path, "rb");
+	if (file) {
+		fclose(file);
+		ret = 0;
+	}
+
+	return ret;
+}
+
 int FUNC_DECL(EXTERNAL_LIBRARY_RENDER_FUNCTION)(struct gds_cell *toplevel, GList *layer_info_list, const char *output_file_name, double scale)
 {
 	int ret = 0;
@@ -98,6 +112,11 @@ int FUNC_DECL(EXTERNAL_LIBRARY_INIT_FUNCTION)(const char *params, const char *ve
 	PyList_Append(p_sys_path, p_cwd_string);
 	Py_DECREF(p_cwd_string);
 
+	/* This renderer has only one parameter: The name of the file */
+	/*if (check_file_exists(params))
+		return -1001;
+	*/
+
 	p_name = PyUnicode_DecodeFSDefault(params);
 	p_module = PyImport_Import(p_name);
 	Py_DECREF(p_name);
@@ -125,5 +144,3 @@ int FUNC_DECL(EXTERNAL_LIBRARY_FINALIZE_FUNCTION)(void)
 	ret = Py_FinalizeEx();
 	return ret;
 }
-
-/** @} */