to_s methods for debugging

lib/git_stats/git_data/author.rb

@@ -15,6 +15,10 @@ module GitStats
         @activity ||= Activity.new(commits)
       end
 
+      def to_s
+        "#{self.class} #@name <#@email>"
+      end
+
     end
   end
 end

lib/git_stats/git_data/command.rb

@@ -13,6 +13,10 @@ module GitStats
       def in_repo
         Dir.chdir(@repo.path) { yield }
       end
+
+      def to_s
+        "#{self.class} #@command"
+      end
     end
   end
 end

lib/git_stats/git_data/commit.rb

@@ -14,6 +14,10 @@ module GitStats
       def short_stat
         @short_stat ||= ShortStat.new(self)
       end
+
+      def to_s
+        "#{self.class} #@hash"
+      end
     end
   end
 end

lib/git_stats/git_data/repo.rb

@@ -38,6 +38,10 @@ module GitStats
         @project_name ||= Pathname(path).basename.to_s
       end
 
+      def to_s
+        "#{self.class} #@path"
+      end
+
     end
   end
 end

lib/git_stats/git_data/short_stat.rb

@@ -18,6 +18,10 @@ module GitStats
           @deletions = stat_line[/(\d+) deletions?/, 1].to_i
         end
       end
+
+      def to_s
+        "#{self.class} #@commit"
+      end
     end
   end
 end

lib/git_stats/hash_initializable.rb

@@ -1,5 +1,5 @@
 module HashInitializable
-  def initialize(params)
+  def initialize(params = {})
     params.each { |k, v| instance_variable_set("@#{k}", v) }
   end
 end