From 9f6fab823290c00130b8cd5e3a4968bec65381bf Mon Sep 17 00:00:00 2001
From: Tomasz Gieniusz <tomasz.gieniusz@gmail.com>
Date: Sat, 13 Oct 2012 17:20:06 +0200
Subject: [PATCH] git_command_observer

---
 lib/git_stats/cli.rb              |  4 +++-
 lib/git_stats/generator.rb        |  7 ++++++-
 lib/git_stats/git_data/command.rb |  3 +++
 lib/git_stats/git_data/repo.rb    | 11 ++++++++---
 4 files changed, 20 insertions(+), 5 deletions(-)

diff --git a/lib/git_stats/cli.rb b/lib/git_stats/cli.rb
index db8916988..af2a54afb 100644
--- a/lib/git_stats/cli.rb
+++ b/lib/git_stats/cli.rb
@@ -6,7 +6,9 @@ class GitStats::CLI
     raise "Wrong number of arguments\nUsage: git_stats repo_path output_path" unless args.size == 2
 
     repo_path, out_path = args
-    GitStats::Generator.new(repo_path, out_path).generate
+    GitStats::Generator.new(repo_path, out_path) { |g|
+      g.git_command_observer { |command| puts command }
+    }.generate
   end
 
 end
diff --git a/lib/git_stats/generator.rb b/lib/git_stats/generator.rb
index 1ac363e4e..338815c49 100644
--- a/lib/git_stats/generator.rb
+++ b/lib/git_stats/generator.rb
@@ -2,12 +2,17 @@ module GitStats
   class Generator
     def initialize(repo_path, out_path)
       @repo_path, @out_path = repo_path, out_path
+      yield self if block_given?
+    end
+
+    def git_command_observer(&block)
+      @git_command_observer = block
     end
 
     def generate
       validate_paths
 
-      repo = GitData::Repo.new(@repo_path)
+      repo = GitData::Repo.new(path: @repo_path, git_command_observer: @git_command_observer)
       view_data = StatsView::ViewData.new(repo)
 
       view = StatsView::View.new(view_data, @out_path)
diff --git a/lib/git_stats/git_data/command.rb b/lib/git_stats/git_data/command.rb
index 3a1e49c73..40f6c0f22 100644
--- a/lib/git_stats/git_data/command.rb
+++ b/lib/git_stats/git_data/command.rb
@@ -1,12 +1,15 @@
 module GitStats
   module GitData
     class Command
+      attr_reader :repo, :command
+
       def initialize(repo, command)
         @repo = repo
         @command = command
       end
 
       def run
+        repo.git_command_observer.try(:call, @command)
         in_repo { %x[#@command] }
       end
 
diff --git a/lib/git_stats/git_data/repo.rb b/lib/git_stats/git_data/repo.rb
index 3cdc168bd..27d72e176 100644
--- a/lib/git_stats/git_data/repo.rb
+++ b/lib/git_stats/git_data/repo.rb
@@ -1,10 +1,15 @@
+require 'git_stats/hash_initializable'
+
 module GitStats
   module GitData
     class Repo
-      attr_reader :path
+      include HashInitializable
 
-      def initialize(path)
-        @path = File.expand_path(path)
+      attr_reader :path, :git_command_observer
+
+      def initialize(params)
+        super(params)
+        @path = File.expand_path(@path)
       end
 
       def authors