My front page shows excerpts of recent posts, some of which are markdown, some nunjucks. If I filter the content with safe {{ post.data.page.excerpt | safe }} the njk excerpts display correctly, but md excerpts are not processed into html. If I add a markdown filter {{ post.data.page.excerpt | md | safe }}, the md excerpts display correctly, but njk do not; because the html code in njk files are indented, the excerpts are converted to code blocks.

To solve this, I write this code in my layout:

{% if post.inputPath.endsWith(".md")  %}
    {{ post.data.page.excerpt | md | safe }}
{% else %}
    {{ post.data.page.excerpt | safe }}
{% endif %}

Is this the right way to handle this? Is there another way I don't know about, maybe a way to determine file type instead of checking the end of the source file extension?