Use Front Matter defaults for seo_description_max_words

Author: kemenaran

docs/advanced-usage.md

@@ -82,14 +82,25 @@ You can set it the same way as the other author properties. For example, you can
 
 ### Customizing description length
 
-By default the description is limited to the first 50 words of the full content.
+By default, the description is limited to the first 100 words of the full content.
 
-You can adjust this limit either at the page level or at the site level, by using the `seo_description_max_words` page property:
+You can adjust this limit at the page level, by using the `seo_description_max_words` page property:
 
 ```yml
-  seo_description_max_words: 100
+  seo_description_max_words: 200
 ```
 
+You can also set a default site-wide value for all pages using [Front Matter defaults](https://jekyllrb.com/docs/configuration/front-matter-defaults/) in your `_config.yml` file:
+
+```yml
+defaults:
+  - scope:
+      path: ""
+    values:
+      seo_description_max_words: 200
+```
+
+
 ### Customizing JSON-LD output
 
 The following options can be set for any particular page. While the default options are meant to serve most users in the most common circumstances, there may be situations where more precise control is necessary.

lib/jekyll-seo-tag/drop.rb

@@ -177,7 +177,7 @@ def canonical_url
       end
 
       def description_max_words
-        @description_max_words ||= page["seo_description_max_words"] || site["seo_description_max_words"] || 50
+        @description_max_words ||= page["seo_description_max_words"] || 100
       end
 
       private

spec/jekyll_seo_tag_integration_spec.rb

@@ -352,23 +352,7 @@
       end
 
       context "description" do
-        context "with site.seo_description_max_words" do
-          let(:site) { make_site("url" => "http://example.invalid", "seo_description_max_words" => 6) }
-          let(:meta) do
-            {
-              "title"       => "post",
-              "description" => "For a long time, I went to bed early",
-              "image"       => "/img.png"
-            }
-          end
-
-          it "truncates the description" do
-            expect(json_data["description"]).to eql("For a long time, I went…")
-          end
-        end
-
         context "with page.seo_description_max_words" do
-          let(:site) { make_site("url" => "http://example.invalid", "seo_description_max_words" => 10) }
           let(:meta) do
             {
               "title"       => "post",