#2 added an option for the user to specify a git commit SHA to run ti…

…pster against if they don't want to run it against the most recent git commit.

lib/tipster.rb

@@ -4,7 +4,7 @@ class Tipster
   def initialize(repository_path = '.')
     Dir.chdir repository_path
   end
-  def html_report
-    HtmlReport.new.display_in_browser
+  def html_report(commit_id = 'HEAD')
+    HtmlReport.new(commit_id).display_in_browser
   end
 end

lib/tipster/reports/html_report.rb

@@ -5,15 +5,15 @@
 
 class HtmlReport
 
-	def initialize
-		generate html
+	def initialize(commit_id = nil)
+		generate html commit_id
 	end
 
-	def html
-		code_ratio_presenter = CodeRatioPresenter.new
+	def html(commit_id)
+		code_ratio_presenter = CodeRatioPresenter.new commit_id
 		code_ratio_status = code_ratio_presenter.status
 
-    code_churn_presenter = CodeChurnPresenter.new
+    code_churn_presenter = CodeChurnPresenter.new commit_id
     code_churn_status = code_churn_presenter.status
 
 		header << file_details(code_ratio_presenter.change_list) << code_ratio_details(code_ratio_status) << code_churn_details(code_churn_status) << footer