search.json

---
---
[
  {% capture now %}{{'now' | date: '%Y-%m-%d'}}{% endcapture %}
  {% assign sorted_posts = site.posts | sort:"date_from" | reversed %}
  {% for post in sorted_posts %}
  {% capture date_from %}{{post.date_from | date: '%Y-%m-%d'}}{% endcapture %}
  {% capture date_to %}{{post.date_to | date: '%Y-%m-%d'}}{% endcapture %}

  {% if date_from >= now or now <= date_to %}
  {
    "title"    : "{{ post.title | escape }}",
    "tags"     : "{{ post.tags | array_to_sentence_string }}",
    "url"      : "{{ site.baseurl }}{{ post.url }}",
    "date"     : 
    {% if post.date_from == post.date_to %}
      "{{ post.date_from | date_to_string }}"
    {% else %}
      "{{post.date_from | date: '%d'}} - {{post.date_to | date: '%d %b %Y'}}"
    {% endif %}
  } {% unless forloop.last %},{% endunless %}
  {% endif %}
  {% endfor %}
]