Generate sitemap by plugin

Gemfile

@@ -8,6 +8,7 @@ group :jekyll_plugins do
   gem "jekyll-redirect-from"
   gem "jekyll-seo-tag", "~> 2.6.1"
   gem "jekyll-archives"
+  gem "jekyll-sitemap"
 end
 
 group :test do

_config.yml

@@ -7,7 +7,6 @@
 
 # jekyll-seo-tag settings › https://github.com/jekyll/jekyll-seo-tag/blob/master/docs/usage.md
 #--------------------------
-
 title: Chirpy                          # the main title
 
 tagline: A text-focused Jekyll theme.  # it will display as the sub-title
@@ -42,7 +41,6 @@ social:
     # - https://www.linkedin.com/in/username
 
 google_site_verification: google_meta_tag_verification # change to your verification string
-
 #--------------------------
 
 
@@ -184,7 +182,7 @@ compress_html:
     envs: []
 
 exclude:
-  - vendor        # Avoid Jekyll mistakenly read the vendor directory on Travis-CI's VM .
+  - vendor
   - Gemfile.lock
   - Gemfile
   - tools
@@ -192,22 +190,6 @@ exclude:
   - README.md
   - LICENSE
 
-sitemap_exclude:  # Sitemap will exclude the following items.
-  fuzzy:
-    - /assets/
-  accurate:
-    - /norobots/
-    - /tabs/
-    - /categories/
-    - /tags/
-    - /posts/
-    - 404.html
-    - feed.xml
-    - sitemap.xml
-    - robots.txt
-    - redirects.json
-
-# see: <https://github.com/jekyll/jekyll-archives/blob/master/docs/configuration.md>
 jekyll-archives:
   enabled: [categories, tags]
   layouts:

_includes/update-list.html

@@ -11,9 +11,9 @@
 {% assign all_list = "" | split: "" %}
 
 {% for post in site.posts %}
-  {% if post.lastmod %}
+  {% if post.last_modified_at %}
     {% capture elem %}
-      {{- post.lastmod | date: "%Y%m%d%H%M%S" -}}::{{- forloop.index0 -}}
+      {{- post.last_modified_at | date: "%Y%m%d%H%M%S" -}}::{{- forloop.index0 -}}
     {% endcapture %}
     {% assign all_list = all_list | push: elem %}
   {% endif %}

_layouts/post.html

@@ -31,10 +31,10 @@ layout: default
         </div>
 
         <!-- lastmod -->
-        {% if page.lastmod %}
+        {% if page.last_modified_at %}
         <div>
           Updated
-          {% include timeago.html date=page.lastmod class="lastmod" tooltip=true %}
+          {% include timeago.html date=page.last_modified_at class="lastmod" tooltip=true %}
         </div>
         {% endif %}
 

_plugins/posts-lastmod-hook.rb

@@ -5,7 +5,7 @@ Jekyll::Hooks.register :posts, :post_init do |post|
 
   if commit_num.to_i > 1
     lastmod_date = `git log -1 --pretty="%ad" --date=iso "#{ post.path }"`
-    post.data['lastmod'] = lastmod_date
+    post.data['last_modified_at'] = lastmod_date
   end
 
 end

sitemap.xml

@@ -1,85 +0,0 @@
----
-layout: compress
-
-# The Sitemap template
-# v2.0
-# https://github.com/cotes2020/jekyll-theme-chirpy
-# © 2017-2019 Cotes Chung
-# MIT License
----
-
-<?xml version="1.0" encoding="UTF-8"?>
-<urlset xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sitemaps.org/schemas/sitemap/0.9 http://www.sitemaps.org/schemas/sitemap/0.9/sitemap.xsd" xmlns="http://www.sitemaps.org/schemas/sitemap/0.9">
-
-{% for post in site.posts %}
-  <url>
-    <loc>{{ site.url | append: site.baseurl | append: post.url }}</loc>
-    {% if post.lastmod %}
-      <lastmod>{{ post.lastmod | date_to_xmlschema }}</lastmod>
-    {% else %}
-      <lastmod>{{ post.date | date_to_xmlschema }}</lastmod>
-    {% endif %}
-
-    {% if post.sitemap.changefreq %}
-      <changefreq>{{ post.sitemap.changefreq }}</changefreq>
-    {% else %}
-      <changefreq>monthly</changefreq>
-    {% endif %}
-
-    {% if post.sitemap.priority %}
-      <priority>{{ post.sitemap.priority }}</priority>
-    {% else %}
-      <priority>0.5</priority>
-    {% endif %}
-  </url>
-{% endfor %}
-
-{% for page in site.pages %}
-
-  {% assign pass = false %}
-
-  {% for fuzzy in site.sitemap_exclude.fuzzy %}
-    {% if page.url contains fuzzy %}
-      {% assign pass = true %}
-      {% break %}
-    {% endif %}
-  {% endfor %}
-
-  {% unless pass %}
-    {% for accurate in site.sitemap_exclude.accurate %}
-      {% assign len = accurate | size %}
-      {% capture beg %}{{ 0 | minus: len }}{% endcapture %}
-      {% capture tail %}{{ page.url | slice: beg, len }}{% endcapture %}
-
-      {% if tail == accurate %}
-        {% assign pass = true %}
-        {% break %}
-      {% endif %}
-
-    {% endfor %}
-  {% endunless %}
-
-  {% if pass %}
-    {% continue %}
-  {% endif %}
-
-  <url>
-    <loc>{{ site.url | append: site.baseurl | append: page.url | remove: "index.html" }}</loc>
-    <lastmod>{{ site.time | date_to_xmlschema }}</lastmod>
-
-    {% if page.sitemap.changefreq %}
-      <changefreq>{{ page.sitemap.changefreq }}</changefreq>
-    {% else %}
-      <changefreq>monthly</changefreq>
-    {% endif %}
-
-    {% if page.sitemap.priority %}
-      <priority>{{ page.sitemap.priority }}</priority>
-    {% else %}
-      <priority>0.3</priority>
-    {% endif %}
-  </url>
-
-{% endfor %}
-
-</urlset>