configuration.py 文件源码

def get_template_engine(self):
        engine = self.get('template_engine')
        if engine is None:
            templates = self['templates']
            dirname = os.path.join(os.getcwd(), 'templates')
            if os.path.isdir(dirname):  # pragma: no cover
                if dirname not in templates:
                    templates.insert(0, dirname)
            elif os.getcwd() not in templates:
                templates.insert(0, os.getcwd())
            loader = jinja2.ChoiceLoader([
                FileSystemLoader(p) for p in templates
            ] + [jinja2.PackageLoader('nuka')])
            self['template_engine'] = jinja2.Environment(
                loader=loader,
                undefined=jinja2.StrictUndefined,
                keep_trailing_newline=True,
                autoescape=False,
            )
        return self['template_engine']