config.load(JetConfig.COMPILE_STRATEGY, "always");
config.load(JetConfig.COMPILE_DEBUG, "false");
JetEngine engine = new JetEngine(config);
TemplateFileFinder finder = new TemplateFileFinder(config.getTemplateSuffix());
finder.lookupFileSystem(new File(sourcePath), true);
List<String> resources = finder.getResources();
System.out.println("Find " + resources.size() + " templates to precompile ...");
int succ = 0;
int fail = 0;
long ts = System.currentTimeMillis();