copy from official jekyll-theme-chirpy github

Author: bayesianIris

_includes/search-loader.html

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+<!--
+  Jekyll Simple Search loader
+  See: <https://github.com/christian-fei/Simple-Jekyll-Search>
+-->
+
+{% capture result_elem %}
+  <article class="px-1 px-sm-2 px-lg-4 px-xl-0">
+    <header>
+      <h2><a href="{url}">{title}</a></h2>
+      <div class="post-meta d-flex flex-column flex-sm-row text-muted mt-1 mb-1">
+        {categories}
+        {tags}
+      </div>
+    </header>
+    <p>{content}</p>
+  </article>
+{% endcapture %}
+
+{% capture not_found %}<p class="mt-5">{{ site.data.locales[include.lang].search.no_results }}</p>{% endcapture %}
+
+<script>
+  {% comment %} Note: dependent library will be loaded in `js-selector.html` {% endcomment %}
+  document.addEventListener('DOMContentLoaded', () => {
+    SimpleJekyllSearch({
+      searchInput: document.getElementById('search-input'),
+      resultsContainer: document.getElementById('search-results'),
+      json: '{{ '/assets/js/data/search.json' | relative_url }}',
+      searchResultTemplate: '{{ result_elem | strip_newlines }}',
+      noResultsText: '{{ not_found }}',
+      templateMiddleware: function(prop, value, template) {
+        if (prop === 'categories') {
+          if (value === '') {
+            return `${value}`;
+          } else {
+            return `<div class="me-sm-4"><i class="far fa-folder fa-fw"></i>${value}</div>`;
+          }
+        }
+
+        if (prop === 'tags') {
+          if (value === '') {
+            return `${value}`;
+          } else {
+            return `<div><i class="fa fa-tag fa-fw"></i>${value}</div>`;
+          }
+        }
+      }
+    });
+  });
+</script>

_includes/search-results.html

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+<!-- The Search results -->
+
+<div id="search-result-wrapper" class="d-flex justify-content-center d-none">
+  <div class="col-11 content">
+    <div id="search-hints">
+      {% include_cached trending-tags.html lang=include.lang %}
+    </div>
+    <div id="search-results" class="d-flex flex-wrap justify-content-center text-muted mt-3"></div>
+  </div>
+</div>

assets/js/data/mathjax.js

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+---
+layout: compress
+# WARNING: Don't use '//' to comment out code, use '{% comment %}' and '{% endcomment %}' instead.
+---
+
+{%- comment -%}
+  See: <https://docs.mathjax.org/en/latest/options/input/tex.html#tex-options>
+{%- endcomment -%}
+
+MathJax = {
+  tex: {
+    {%- comment -%} start/end delimiter pairs for in-line math {%- endcomment -%}
+    inlineMath: [
+      ['$', '$'],
+      ['\\(', '\\)']
+    ],
+    {%- comment -%} start/end delimiter pairs for display math {%- endcomment -%}
+    displayMath: [
+      ['$$', '$$'],
+      ['\\[', '\\]']
+    ],
+    {%- comment -%} equation numbering {%- endcomment -%}
+    tags: 'ams'
+  }
+};

assets/js/data/search.json

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+---
+layout: compress
+swcache: true
+---
+
+[
+  {% for post in site.posts %}
+    {%- capture description -%}
+      {% include post-description.html %}
+    {%- endcapture -%}
+  {
+    "title": {{ post.title | jsonify }},
+    "url": {{ post.url | relative_url | jsonify }},
+    "categories": {{ post.categories | join: ', ' | jsonify }},
+    "tags": {{ post.tags | join: ', ' | jsonify }},
+    "date": "{{ post.date }}",
+    "content": "{{ description }}"
+  }{% unless forloop.last %},{% endunless %}
+  {% endfor %}
+]

assets/js/data/swconf.js

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+---
+layout: compress
+permalink: '/:path/swconf.js'
+# Note that this file will be fetched by the ServiceWorker, so it will not be cached.
+---
+
+const swconf = {
+  {% if site.pwa.cache.enabled %}
+    cacheName: 'chirpy-{{ "now" | date: "%s" }}',
+
+    {%- comment -%} Resources added to the cache during PWA installation. {%- endcomment -%}
+    resources: [
+      '{{ "/assets/css/:THEME.css" | replace: ':THEME', site.theme | relative_url }}',
+      '{{ "/" | relative_url }}',
+      {% for tab in site.tabs %}
+        '{{- tab.url | relative_url -}}',
+      {% endfor %}
+
+      {% assign cache_list = site.static_files | where: 'swcache', true %}
+      {% for file in cache_list %}
+        '{{ file.path | relative_url }}'{%- unless forloop.last -%},{%- endunless -%}
+      {% endfor %}
+    ],
+
+    interceptor: {
+      {%- comment -%} URLs containing the following paths will not be cached. {%- endcomment -%}
+      paths: [
+        {% for path in site.pwa.cache.deny_paths %}
+          {% unless path == empty %}
+            '{{ path | relative_url }}'{%- unless forloop.last -%},{%- endunless -%}
+          {% endunless  %}
+        {% endfor %}
+      ],
+
+      {%- comment -%} URLs containing the following prefixes will not be cached. {%- endcomment -%}
+      urlPrefixes: [
+        {% if site.analytics.goatcounter.id != nil and site.pageviews.provider == 'goatcounter' %}
+          'https://{{ site.analytics.goatcounter.id }}.goatcounter.com/counter/'
+        {% endif %}
+      ]
+    },
+
+    purge: false
+  {% else %}
+    purge: true
+  {% endif %}
+};