Fix Absolute permalinks break paginator when permalink is specified for index file #5

lib/jekyll-paginate/pagination.rb

@@ -43,10 +43,7 @@ def paginate(site, page)
         (1..pages).each do |num_page|
           pager = Pager.new(site, num_page, all_posts, pages)
           if num_page > 1
-            newpage = Page.new(site, site.source, page.dir, page.name)
-            newpage.pager = pager
-            newpage.dir = Pager.paginate_path(site, num_page)
-            site.pages << newpage
+            site.pages << build_paginated_page(site, page, pager)
           else
             page.pager = pager
           end
@@ -80,6 +77,18 @@ def self.template_page(site)
         end.first
       end
 
+      private
+      def build_paginated_page(site, page, pager)
+        page = Page.new(site, site.source, source_to_file_path(page), page.name)
+        page.data.delete('permalink')
+        page.pager = pager
+        page.dir = Pager.paginate_path(site, pager.page)
+        page
+      end
+      def source_to_file_path(page)
+        page.url_placeholders[:path] # meant to use page.instance_variable_get('@dir')
+      end
+
     end
   end
 end

spec/pagination_spec.rb

@@ -0,0 +1,30 @@
+require 'spec_helper'
+
+RSpec.describe(Jekyll::Paginate::Pagination) do
+
+  context "with absoulte permalink in index file" do
+    before(:each) do
+      @original_index_string = File.read(File.join(source_dir, 'index.html'))
+    end
+    after(:each) do
+      File.open(File.join(source_dir, 'index.html'), 'w') { |f| f.write(@original_index_string) }
+    end
+
+    def rewrite_index(frontmatter_string)
+      File.open(File.join(source_dir, 'index.html'), 'w') { |f| f.write("---\n#{frontmatter_string}\n---\nbody") }
+    end
+
+    let(:site) { build_site }
+
+    it "paginated pages should not use absoulte permalink from index file" do
+      rewrite_index("permalink: /")
+      expect(site.pages.select {|page| page.url == "/"}.length).to eql(1)
+    end
+
+    it "paginated pages should be generated from index file given parmalink not matched to source" do
+      rewrite_index("permalink: /posts/")
+      site
+      expect(File.read(File.join(dest_dir('page2'), 'index.html'))).to eql("body")
+    end
+  end
+end