Take advantage of Jekyll 3.3.0 URL filters

Gemfile

@@ -9,6 +9,7 @@ group :development, :test do
   versions.delete('ruby')
   versions.delete('jekyll-seo-tag')
   versions.delete('github-pages')
+  versions.delete('jekyll') # Remove this line when GitHub Pages supports 3.3.0
 
   versions.each do |dep, version|
     gem dep, version

jekyll-seo-tag.gemspec

@@ -25,7 +25,7 @@ Gem::Specification.new do |spec|
   spec.executables   = spec.files.grep(%r{^exe/}) { |f| File.basename(f) }
   spec.require_paths = ['lib']
 
-  spec.add_dependency 'jekyll', '~> 3.1'
+  spec.add_dependency 'jekyll', '~> 3.3'
   spec.add_development_dependency 'bundler', '~> 1.10'
   spec.add_development_dependency 'rake', '~> 10.0'
   spec.add_development_dependency 'rspec', '~> 3.3'

lib/jekyll-seo-tag.rb

@@ -1,4 +1,3 @@
-require "jekyll-seo-tag/filters"
 require "jekyll-seo-tag/version"
 
 module Jekyll
@@ -42,7 +41,7 @@ module Jekyll
     def info
       {
         :registers => context.registers,
-        :filters   => [Jekyll::Filters, JekyllSeoTag::Filters]
+        :filters   => [Jekyll::Filters]
       }
     end
 

lib/jekyll-seo-tag/filters.rb

@@ -1,13 +0,0 @@
-module JekyllSeoTag
-  module Filters
-    # This is available in Liquid from version 3 which is required by Jekyll 3
-    # Provided here for compatibility with Jekyll 2.x
-    def default(input, default_value = "".freeze)
-      if !input || input.respond_to?(:empty?) && input.empty?
-        default_value
-      else
-        input
-      end
-    end
-  end
-end

lib/template.html

@@ -4,10 +4,6 @@
   {% assign seo_homepage_or_about = true %}
 {% endif %}
 
-{% if site.url %}
-  {% assign seo_url = site.url | append: site.baseurl %}
-{% endif %}
-{% assign seo_url = seo_url | default: site.github.url %}
 {% assign seo_site_title = site.title | default: site.name %}
 
 {% if page.title %}
@@ -87,7 +83,7 @@
 {% if site.logo %}
   {% assign seo_site_logo = site.logo %}
   {% unless seo_site_logo contains "://" %}
-    {% assign seo_site_logo = seo_site_logo | prepend: seo_url %}
+    {% assign seo_site_logo = seo_site_logo | absolute_url %}
   {% endunless %}
   {% assign seo_site_logo = seo_site_logo | escape %}
 {% endif %}
@@ -95,7 +91,7 @@
 {% if page.image %}
   {% assign seo_page_image = page.image.path | default: page.image.facebook | default: page.image %}
   {% unless seo_page_image contains "://" %}
-    {% assign seo_page_image = seo_page_image | prepend: seo_url %}
+    {% assign seo_page_image = seo_page_image | absolute_url %}
   {% endunless %}
   {% assign seo_page_image = seo_page_image | escape %}
 {% endif %}
@@ -113,9 +109,9 @@
   <meta property="og:description" content="{{ seo_description }}" />
 {% endif %}
 
-{% if seo_url %}
-  <link rel="canonical" href="{{ page.url | prepend: seo_url | replace:'/index.html','/' }}" />
-  <meta property="og:url" content="{{ page.url | prepend: seo_url | replace:'/index.html','/' }}" />
+{% if page.url %}
+  <link rel="canonical" href="{{ page.url | replace:'/index.html','/' | absolute_url }}" />
+  <meta property="og:url" content="{{ page.url | replace:'/index.html','/' | absolute_url }}" />
 {% endif %}
 
 {% if seo_site_title %}
@@ -133,7 +129,7 @@
 {% endif %}
 
 {% if page.image.twitter %}
-  <meta name="twitter:image" content="{{ page.image.twitter | prepend: seo_url | escape }}" />
+  <meta name="twitter:image" content="{{ page.image.twitter | absolute_url }}" />
 {% endif %}
 
 {% if page.date %}
@@ -142,10 +138,10 @@
 {% endif %}
 
 {% if paginator.previous_page %}
-  <link rel="prev" href="{{ paginator.previous_page_path | prepend: seo_url }}">
+  <link rel="prev" href="{{ paginator.previous_page_path | absolute_url }}">
 {% endif %}
 {% if paginator.next_page %}
-  <link rel="next" href="{{ paginator.next_page_path | prepend: seo_url }}">
+  <link rel="next" href="{{ paginator.next_page_path | absolute_url }}">
 {% endif %}
 
 {% if site.twitter %}
@@ -216,7 +212,7 @@
     "sameAs": {{ seo_links | jsonify }},
 {% endif %}
 
-    "url": {{ page.url | prepend: seo_url | replace:'/index.html','/' | jsonify }}
+    "url": {{ page.url | replace:'/index.html','/' | absolute_url | jsonify }}
   }
 </script>
 

spec/jekyll_seo_tag_spec.rb

@@ -218,18 +218,6 @@ EOS
     end
   end
 
-  context "with site.github.url" do
-    let(:github_namespace) { { "url" => "http://example.invalid" } }
-    let(:site) { make_site("github" => github_namespace) }
-
-    it "uses site.github.url to build the seo url" do
-      expected = %r!<link rel="canonical" href="http://example.invalid/page.html" \/>!
-      expect(output).to match(expected)
-      expected = %r!<meta property="og:url" content="http://example.invalid/page.html" />!
-      expect(output).to match(expected)
-    end
-  end
-
   context "posts" do
     context "with post meta" do
       let(:site) { make_site("url" => "http://example.invalid") }
@@ -449,8 +437,8 @@ EOS
     let(:context) { make_context({}, "paginator" => paginator) }
 
     it "outputs pagination links" do
-      expect(output).to match(%r!<link rel="prev" href="foo">!)
-      expect(output).to match(%r!<link rel="next" href="bar">!)
+      expect(output).to match(%r!<link rel="prev" href="/foo">!)
+      expect(output).to match(%r!<link rel="next" href="/bar">!)
     end
   end
 end