lib/gh_compare.rb in gh_compare-0.1.3 vs lib/gh_compare.rb in gh_compare-0.1.4

@@ -16,10 +16,14 @@
 
     def compare_url(from, to)
       remote_url + "/compare/#{from}...#{to}"
     end
 
+    def compare_before(num)
+      compare_url(head_before(num), head)
+    end
+
     private
 
     def get_remote_origin
       `git config --get remote.origin.url`.strip
     end
@@ -28,8 +32,16 @@
       URI.parse(remote_origin).is_a?(URI::HTTP) rescue false
     end
 
     def ssh_to_url
       "https://github.com/#{remote_origin.gsub(/[e-mail]:/, '').gsub(/\.git$/, '')}"
+    end
+
+    def head
+      `git rev-parse HEAD`.strip
+    end
+
+    def head_before(num)
+      `git rev-parse HEAD~#{num}`.strip
     end
   end
 end