feat(index): Do not index index.html page

lib/push.rb

@@ -57,8 +57,9 @@ class AlgoliaSearchJekyllPush < Jekyll::Command
     # Check if the file is in the list of excluded files
     def excluded_file?(file)
       # Blacklist of pages generated by Jekyll that we know should not be
-      # indexed
+      # indexing
       excluded = [
+        /^index\.html$/, # Index page
         %r{^page([0-9]*)/index\.html} # Pagination pages
       ]
       # User-provided blacklist

spec/fixtures/jekyll_version_2/index.html

@@ -3,7 +3,9 @@ layout: default
 title: Home
 ---
 
-This default index page is used to display the paginated posts
+This default index page is usually used to display the list of posts, or briefly explain the product.
+
+I feel that it should not be indexed.
 
 {% for post in paginator.posts %}
   <a href="{{ site.baseurl }}{{ post.url }}">

spec/fixtures/jekyll_version_3/index.html

@@ -3,7 +3,9 @@ layout: default
 title: Home
 ---
 
-This default index page is used to display the paginated posts
+This default index page is usually used to display the list of posts, or briefly explain the product.
+
+I feel that it should not be indexed.
 
 {% for post in paginator.posts %}
   <a href="{{ site.baseurl }}{{ post.url }}">
@@ -11,3 +13,4 @@ This default index page is used to display the paginated posts
   </a>
   {{ post.content }}
 {% endfor %}
+

spec/push_spec.rb

@@ -13,6 +13,7 @@ describe(AlgoliaSearchJekyllPush) do
   let(:pagination_page) { site.file_by_name('page2/index.html') }
   let(:err_404) { site.file_by_name('404.md') }
   let(:err_404_html) { site.file_by_name('404.html') }
+  let(:homepage) { site.file_by_name('index.html') }
   let(:items) do
     [{
       name: 'foo',
@@ -75,6 +76,10 @@ describe(AlgoliaSearchJekyllPush) do
     it 'does not index 404 pages (in html)' do
       expect(push.indexable?(err_404_html)).to eq false
     end
+
+    it 'does not index homepage' do
+      expect(push.indexable?(homepage)).to eq false
+    end
   end
 
   describe 'excluded_files?' do

spec/spec_helper.rb

@@ -35,9 +35,17 @@ def get_site(config = {}, options = {})
                                 .jekyll_new(config)
 
   def site.file_by_name(file_name)
+    # We first check the exact match
+    each_site_file do |file|
+      return file if file.path == file_name
+    end
+
+    # If not found (happens for static files that uses a full absolute path), we
+    # try with a loose regexp
     each_site_file do |file|
       return file if file.path =~ /#{file_name}$/
     end
+
     nil
   end