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Speed up the Jekyll build times for large sites #1163

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Aug 7, 2023
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Speed up the Jekyll build times for large sites #1163

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51 changes: 23 additions & 28 deletions _includes/related-posts.html
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Original file line number Diff line number Diff line change
@@ -1,7 +1,4 @@
<!--
Recommend the other 3 posts according to the tags and categories of the current post,
if the number is not enough, use the other latest posts to supplement.
-->
<!-- Recommend the other 3 posts according to the tags and categories of the current post. -->

<!-- The total size of related posts -->
{% assign TOTAL_SIZE = 3 %}
Expand All @@ -14,11 +11,23 @@

{% assign SEPARATOR = ':' %}

{% assign match_posts = '' | split: '' %}

{% for category in page.categories %}
{% assign temp = site.posts | where_exp: 'item', 'item.categories contains category' %}
{% assign match_posts = match_posts | push: temp %}
{% endfor %}

{% for tag in page.tags %}
{% assign temp = site.posts | where_exp: 'item', 'item.categories contains tag' %}
{% assign match_posts = match_posts | push: temp %}
{% endfor %}

{% assign last_index = match_posts.size | minus: 1 %}
{% assign score_list = '' | split: '' %}
{% assign last_index = site.posts.size | minus: 1 %}

{% for i in (0..last_index) %}
{% assign post = site.posts[i] %}
{% assign post = match_posts[i] %}

{% if post.url == page.url %}
{% continue %}
Expand Down Expand Up @@ -54,34 +63,20 @@
{% endfor %}
{% endif %}

<!-- Fill with the other newlest posts -->
{% assign less = TOTAL_SIZE | minus: index_list.size %}

{% if less > 0 %}
{% for i in (0..last_index) %}
{% assign post = site.posts[i] %}
{% if post.url != page.url %}
{% capture cur_index %}{{ i }}{% endcapture %}
{% unless index_list contains cur_index %}
{% assign index_list = index_list | push: cur_index %}
{% assign less = less | minus: 1 %}
{% if less <= 0 %}
{% break %}
{% endif %}
{% endunless %}
{% endif %}
{% endfor %}
{% endif %}
{% assign relate_posts = '' | split: '' %}

{% for index in index_list %}
{% assign i = index | to_integer %}
{% assign relate_posts = relate_posts | push: match_posts[i] %}
{% endfor %}

{% if index_list.size > 0 %}
{% if relate_posts.size > 0 %}
<div id="related-posts" class="mb-2 mb-sm-4">
<h3 class="pt-2 mb-4 ms-1" data-toc-skip>
{{ site.data.locales[include.lang].post.relate_posts }}
</h3>
<div class="row row-cols-1 row-cols-md-2 row-cols-xl-3 g-4 mb-4">
{% for entry in index_list %}
{% assign index = entry | plus: 0 %}
{% assign post = site.posts[index] %}
{% for post in relate_posts %}
<div class="col">
<a href="{{ post.url | relative_url }}" class="card post-preview h-100">
<div class="card-body">
Expand Down