Implement git statistics on git trees (directories)

The current statistics refer to the complete git repository.  With this
commit it is possible to generate statistics on a given tree.

.gitmodules

@@ -1,3 +1,6 @@
 [submodule "spec/integration/test_repo"]
 	path = spec/integration/test_repo
 	url = git://github.com/tomgi/git_stats_test_repo.git
+[submodule "spec/integration/test_repo_tree"]
+	path = spec/integration/test_repo_tree
+	url = git://github.com/irevert/git_stats_test_repo_tree

config/locales/en.yml

@@ -1,6 +1,7 @@
 en:
   project_name: Project name
   project_version: Project version
+  tree_path: Tree path
   generated_at: Generated at
   generator: Generator
   report_period: Report period

lib/git_stats/base.rb

@@ -18,6 +18,7 @@ require 'git_stats/git_data/command_runner'
 require 'git_stats/git_data/commit'
 require 'git_stats/git_data/repo'
 require 'git_stats/git_data/short_stat'
+require 'git_stats/git_data/tree'
 
 require 'git_stats/stats_view/template'
 require 'git_stats/stats_view/view'

lib/git_stats/cli.rb

@@ -9,11 +9,12 @@ class GitStats::CLI < Thor
   option :from, :aliases => :f, :desc => 'Commit from where statistics should start.'
   option :to, :aliases => :t, :default => 'HEAD', :desc => 'Commit where statistics should stop.'
   option :silent, :aliases => :s, :type => :boolean, :desc => 'Silent mode. Don\'t output anything.'
+  option :tree, :aliases => :d, :default => '.', :desc => 'Tree where statistics should be generated.'
 
   desc 'generate', 'Generates the statistics of a repository'
   def generate
     I18n.locale = options[:language]
-    GitStats::Generator.new(options[:path], options[:output], options[:from], options[:to]) { |g|
+    GitStats::Generator.new(options[:path], options[:output], options[:from], options[:to], options[:tree]) { |g|
       g.add_command_observer { |command, result| puts "#{command}" } unless options[:silent]
     }.render_all
   end

lib/git_stats/generator.rb

@@ -4,10 +4,10 @@ module GitStats
     delegate :add_command_observer, to: :@repo
     delegate :render_all, to: :@view
 
-    def initialize(repo_path, out_path, first_commit_sha = nil, last_commit_sha = "HEAD")
+    def initialize(repo_path, out_path, first_commit_sha = nil, last_commit_sha = "HEAD", tree_path = ".")
       validate_repo_path(repo_path)
 
-      @repo = GitData::Repo.new(path: repo_path, first_commit_sha: first_commit_sha, last_commit_sha: last_commit_sha)
+      @repo = GitData::Repo.new(path: repo_path, first_commit_sha: first_commit_sha, last_commit_sha: last_commit_sha, tree_path: tree_path)
       view_data = StatsView::ViewData.new(@repo)
       @view = StatsView::View.new(view_data, out_path)
 

lib/git_stats/git_data/commit.rb

@@ -9,7 +9,7 @@ module GitStats
       attr_reader :repo, :sha, :stamp, :date, :author
 
       def files
-        @files ||= repo.run_and_parse("git ls-tree -r #{self.sha}").map do |file|
+        @files ||= repo.run_and_parse("git ls-tree -r #{self.sha} -- #{repo.tree_path}").map do |file|
           Blob.new(repo: repo, filename: file[:filename], sha: file[:sha])
         end.extend(ByFieldFinder)
       end
@@ -37,11 +37,11 @@ module GitStats
       end
 
       def files_count
-        @files_count ||= repo.run("git ls-tree -r --name-only #{self.sha} | wc -l").to_i
+        @files_count ||= repo.run("git ls-tree -r --name-only #{self.sha} -- #{repo.tree_path}| wc -l").to_i
       end
 
       def lines_count
-        @lines_count ||= repo.run("git diff --shortstat `git hash-object -t tree /dev/null` #{self.sha}").lines.map do |line|
+        @lines_count ||= repo.run("git diff --shortstat `git hash-object -t tree /dev/null` #{self.sha} -- #{repo.tree_path}").lines.map do |line|
           line[/(\d+) insertions?/, 1].to_i
         end.sum
       end

lib/git_stats/git_data/repo.rb

@@ -6,7 +6,7 @@ module GitStats
     class Repo
       include HashInitializable
 
-      attr_reader :path, :first_commit_sha, :last_commit_sha
+      attr_reader :path, :first_commit_sha, :last_commit_sha, :tree_path
 
       delegate :files, :files_by_extension, :files_by_extension_count, :lines_by_extension,
                :files_count, :binary_files, :text_files, :lines_count, to: :last_commit
@@ -14,16 +14,17 @@ module GitStats
       def initialize(params)
         super(params)
         @path = File.expand_path(@path)
+        @tree_path ||= "."
       end
 
       def authors
-        @authors ||= run_and_parse("git shortlog -se #{commit_range}").map do |author|
+        @authors ||= run_and_parse("git shortlog -se #{commit_range} #{tree_path}").map do |author|
           Author.new(repo: self, name: author[:name], email: author[:email])
         end.extend(ByFieldFinder)
       end
 
       def commits
-        @commits ||= run_and_parse("git rev-list --pretty=format:'%h|%at|%ai|%aE' #{commit_range} | grep -v commit").map do |commit_line|
+        @commits ||= run_and_parse("git rev-list --pretty=format:'%h|%at|%ai|%aE' #{commit_range} #{tree_path} | grep -v commit").map do |commit_line|
           Commit.new(
               repo: self,
               sha: commit_line[:sha],
@@ -87,8 +88,13 @@ module GitStats
         @project_version ||= run("git rev-parse --short #{commit_range}").strip
       end
 
+      def tree
+        @tree ||= Tree.new(repo: self, relative_path: @tree_path)
+      end
+
       def project_name
-        @project_name ||= File.basename(path)
+        # @project_name ||= File.basename(path)
+        @project_name ||= (File.expand_path(File.join(path, tree_path)).sub(File.dirname(File.expand_path(path))+File::SEPARATOR,"") || File.basename(path))
       end
 
       def run(command)
@@ -132,6 +138,7 @@ module GitStats
         command_observers.each { |o| o.call(command, result) }
       end
 
+
     end
   end
 end

lib/git_stats/git_data/short_stat.rb

@@ -19,7 +19,7 @@ module GitStats
 
       private
       def calculate_stat
-        stat_line = commit.repo.run("git show --shortstat --oneline #{commit.sha}").lines.to_a[1]
+        stat_line = commit.repo.run("git show --shortstat --oneline #{commit.sha} -- #{commit.repo.tree_path}").lines.to_a[1]
         if stat_line.blank?
           @files_changed = @insertions = @deletions = 0
         else

lib/git_stats/git_data/tree.rb

@@ -0,0 +1,25 @@
+# -*- encoding : utf-8 -*-
+require 'git_stats/hash_initializable'
+
+module GitStats
+  module GitData
+    class Tree
+      include HashInitializable
+      attr_reader :repo, :relative_path
+      def initialize(params)
+        super(params)
+      end
+
+      def authors
+        @authors ||= run_and_parse("git shortlog -se #{commit_range}").map do |author|
+          Author.new(repo: self, name: author[:name], email: author[:email])
+        end.extend(ByFieldFinder)
+      end
+      
+      def ==(other)
+        ((self.repo == other.repo) && (self.relative_path == other.relative_path))
+      end
+
+    end
+  end
+end

spec/factories.rb

@@ -7,6 +7,9 @@ FactoryGirl.define do
     factory :test_repo do
       path 'spec/integration/test_repo'
     end
+    factory :test_repo_tree do
+      path 'spec/integration/test_repo_tree'
+    end
   end
 
   factory :author, class: GitStats::GitData::Author do
@@ -22,4 +25,9 @@ FactoryGirl.define do
     association :repo, strategy: :build
     association :author, strategy: :build
   end
+
+  factory :tree, class: GitStats::GitData::Tree do
+    association :repo, strategy: :build
+  end
+
 end

spec/git_data/commit_range_spec.rb

@@ -28,12 +28,12 @@ describe GitStats::GitData::Repo do
       let(:repo) { build(:repo, first_commit_sha: 'abc', last_commit_sha: 'def') }
 
       it 'should affect authors command' do
-        repo.should_receive(:run).with('git shortlog -se abc..def').and_return("")
+        repo.should_receive(:run).with('git shortlog -se abc..def .').and_return("")
         repo.authors
       end
 
       it 'should affect commits command' do
-        repo.should_receive(:run).with("git rev-list --pretty=format:'%h|%at|%ai|%aE' abc..def | grep -v commit").and_return("")
+        repo.should_receive(:run).with("git rev-list --pretty=format:'%h|%at|%ai|%aE' abc..def . | grep -v commit").and_return("")
         repo.commits
       end
 

spec/git_data/commit_spec.rb

@@ -7,7 +7,7 @@ describe GitStats::GitData::Commit do
   describe 'git output parsing' do
     context 'parsing git ls-tree output' do
       before {
-        commit.repo.should_receive(:run).with('git ls-tree -r abc').and_return("100644 blob 5ade7ad51a75ee7db4eb06cecd3918d38134087d	lib/git_stats/git_data/commit.rb
+        commit.repo.should_receive(:run).with('git ls-tree -r abc -- .').and_return("100644 blob 5ade7ad51a75ee7db4eb06cecd3918d38134087d	lib/git_stats/git_data/commit.rb
 100644 blob db01e94677a8f72289848e507a52a43de2ea109a	lib/git_stats/git_data/repo.rb
 100644 blob 1463eacb3ac9f95f21f360f1eb935a84a9ee0895	templates/index.haml
 100644 blob 31d8b960a67f195bdedaaf9e7aa70b2389f3f1a8	templates/assets/bootstrap/css/bootstrap.min.css

spec/git_data/generator_spec.rb

@@ -15,7 +15,7 @@ describe GitStats::Generator do
 
   it 'should pass command observer to repo' do
     repo = double('repo')
-    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD").and_return(repo)
+    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD", tree_path: ".").and_return(repo)
 
     generator = GitStats::Generator.new(repo_path, out_path)
 
@@ -27,7 +27,7 @@ describe GitStats::Generator do
 
   it 'should render all templates with view data for this repo' do
     repo = double('repo')
-    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD").and_return(repo)
+    GitStats::GitData::Repo.should_receive(:new).with(path: repo_path, first_commit_sha: nil, last_commit_sha: "HEAD", tree_path: ".").and_return(repo)
 
     view_data = double('view_data')
     GitStats::StatsView::ViewData.should_receive(:new).with(repo).and_return(view_data)

spec/git_data/repo_spec.rb

@@ -7,7 +7,7 @@ describe GitStats::GitData::Repo do
   describe 'git output parsing' do
     context 'invoking authors command' do
       before do
-        repo.should_receive(:run).with('git shortlog -se HEAD').and_return("   156	John Doe <john.doe@gmail.com>
+        repo.should_receive(:run).with('git shortlog -se HEAD .').and_return("   156	John Doe <john.doe@gmail.com>
     53	Joe Doe <joe.doe@gmail.com>
 ")
       end
@@ -19,7 +19,7 @@ describe GitStats::GitData::Repo do
       end
 
       it 'should parse git revlist output to date sorted commits array' do
-        repo.should_receive(:run).with("git rev-list --pretty=format:'%h|%at|%ai|%aE' HEAD | grep -v commit").and_return(
+        repo.should_receive(:run).with("git rev-list --pretty=format:'%h|%at|%ai|%aE' HEAD . | grep -v commit").and_return(
             "e4412c3|1348603824|2012-09-25 22:10:24 +0200|john.doe@gmail.com
 ce34874|1347482927|2012-09-12 22:48:47 +0200|joe.doe@gmail.com
 5eab339|1345835073|2012-08-24 21:04:33 +0200|john.doe@gmail.com

spec/git_data/short_stat_spec.rb

@@ -14,7 +14,7 @@ describe GitStats::GitData::ShortStat do
           {content: '', expect: [0, 0, 0]},
       ].each do |test|
         it "#{test[:content]} parsing" do
-          commit.repo.should_receive(:run).with("git show --shortstat --oneline abc").and_return("abc some commit\n#{test[:content]}")
+          commit.repo.should_receive(:run).with("git show --shortstat --oneline abc -- .").and_return("abc some commit\n#{test[:content]}")
 
 
           commit.short_stat.should be_a(GitStats::GitData::ShortStat)

spec/git_data/tree_spec.rb

@@ -0,0 +1,41 @@
+# -*- encoding : utf-8 -*-
+require 'spec_helper'
+
+describe GitStats::GitData::Tree do
+  let(:repo) { build(:test_repo_tree, tree_path: '.') }
+  let(:repo_tree) { build(:test_repo_tree, tree_path: './subdir_with_1_commit') }
+  let(:tree) { build(:tree, repo: repo_tree, relative_path: './subdir_with_1_commit') }
+
+  describe 'tree git output parsing' do
+    it 'should return . by default' do
+      repo.tree.should == GitStats::GitData::Tree.new(repo: repo, relative_path: '.')
+    end
+
+    it 'should return relative_path given by parameter' do
+      repo_tree.tree.should == GitStats::GitData::Tree.new(repo: repo, relative_path: './subdir_with_1_commit')
+      repo_tree.tree.relative_path.should == './subdir_with_1_commit'
+      tree.relative_path.should == './subdir_with_1_commit'
+    end
+
+    context 'invoking authors command' do
+      before do
+        repo_tree.should_receive(:run).with('git shortlog -se HEAD ./subdir_with_1_commit').and_return("	3	Israel Revert <israelrevert@gmail.com>
+")
+      end
+
+      it 'should parse git shortlog output to authors hash' do
+        repo_tree.authors.should == [ build(:author, repo: repo_tree, name: "Israel Revert", email:"israelrevert@gmail.com") ]
+      end
+
+      it 'should parse git revlist output to date sorted commits array' do
+        repo_tree.should_receive(:run).
+          with("git rev-list --pretty=format:'%h|%at|%ai|%aE' HEAD ./subdir_with_1_commit | grep -v commit").
+          and_return("10d1814|1395407506|2014-03-21 14:11:46 +0100|israelrevert@gmail.com")
+        repo_tree.commits.should ==
+          [ GitStats::GitData::Commit.new( repo: repo, sha: "10d1814", stamp: "1395407506",
+                                           date: DateTime.parse("2014-03-21 14:11:46 +0100"),
+                                           author: repo.authors.by_email("israelrevert@gmail.com"))]
+      end
+    end
+  end
+end

spec/integration/shared.rb

@@ -44,3 +44,94 @@ shared_context "shared" do
       build(:author, repo: repo, name: "John Doe", email: "john.doe@gmail.com"),
   ] }
 end
+
+
+shared_context "tree_subdir_with_1_commit" do
+  let(:repo) { build(:test_repo_tree, last_commit_sha: 'HEAD', tree_path: './subdir_with_1_commit') }
+  let(:commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:commit_dates_with_empty) {[
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+  ]}
+  let(:tg_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:jd_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+
+  let(:expected_authors) { [
+      build(:author, repo: repo, name: "Israel Revert", email: "israelrevert@gmail.com"),
+  ] }
+end
+
+shared_context "tree_subdir_with_2_commit" do
+  let(:repo) { build(:test_repo_tree, last_commit_sha: 'HEAD', tree_path: './subdir_with_2_commits') }
+  let(:commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:commit_dates_with_empty) {[
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+  ]}
+  let(:tg_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:jd_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+
+  let(:expected_authors) { [
+      build(:author, repo: repo, name: "Israel Revert", email: "israelrevert@gmail.com"),
+  ] }
+end
+
+
+
+# 5fd0f5e|1395407567|2014-03-21 14:12:47 +0100|israelrevert@gmail.com
+# 435e0ef|1395407543|2014-03-21 14:12:23 +0100|israelrevert@gmail.com
+# 10d1814|1395407506|2014-03-21 14:11:46 +0100|israelrevert@gmail.com
+
+shared_context "tree" do
+  let(:repo) { build(:test_repo_tree, last_commit_sha: 'HEAD') }
+  let(:commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:commit_dates_with_empty) {[
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+      Date.new(2014, 03, 21),
+  ]}
+  let(:tg_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+  let(:jd_commit_dates) { [
+      DateTime.parse('2014-03-21 14:11:46 +0100'),
+      DateTime.parse('2014-03-21 14:12:23 +0100'),
+      DateTime.parse('2014-03-21 14:12:47 +0100'),
+  ] }
+
+  let(:expected_authors) { [
+      build(:author, repo: repo, name: "Israel Revert", email: "israelrevert@gmail.com"),
+  ] }
+end

spec/integration/test_repo_tree

@@ -0,0 +1 @@
+Subproject commit 5fd0f5ea90e0ef34a0214ec9c170728913525ff4

spec/integration/tree_spec.rb

@@ -0,0 +1,197 @@
+# -*- encoding : utf-8 -*-
+require 'integration/shared'
+
+describe GitStats::GitData::Tree do
+  include_context "tree"
+
+  it 'should gather all authors' do
+    repo.authors.should =~ expected_authors
+  end
+
+  it 'should calculate correct commits period' do
+    repo.commits_period.should == [DateTime.parse('2014-03-21 14:11:46 +0100'),
+                                   DateTime.parse('2014-03-21 14:12:47 +0100')]
+  end
+
+  it 'should gather all commits sorted by date' do
+    repo.commits.map(&:sha).should =~ %w(10d1814 435e0ef 5fd0f5e)
+  end
+
+  it 'should return project name from dir' do
+    repo.project_name.should == 'test_repo_tree'
+  end
+
+  it 'should return project version as last commit hash' do
+    repo.project_version.should == '5fd0f5e'
+  end
+
+  it 'should count files in repo' do
+    repo.files_count.should == 4
+  end
+
+  it 'should count files by date' do
+    repo.files_count_by_date.keys == Hash[commit_dates_with_empty.zip [2, 3, 4]]
+  end
+
+  it 'should count lines by date' do
+    repo.files_count_by_date.values == Hash[commit_dates_with_empty.zip [1, 2, 2]]
+  end
+
+  it 'should count all lines in repo' do
+    repo.lines_count.should == 0
+  end
+
+  it 'should count files by extension in repo' do
+    repo.files_by_extension_count.should == {'' => 4}
+  end
+
+  it 'should count lines by extension in repo' do
+    repo.lines_by_extension.should == {}
+  end
+
+  it 'should count commits_count_by_author' do
+    repo.commits_count_by_author.keys.should == expected_authors
+    repo.commits_count_by_author.values.should == [3]
+  end
+
+  it 'should count lines_added_by_author' do
+    repo.insertions_by_author.keys.should == expected_authors
+    repo.insertions_by_author.values.should == [0]
+  end
+
+  it 'should count lines_deleted_by_author' do
+    repo.deletions_by_author.keys.should == expected_authors
+    repo.deletions_by_author.values.should == [0]
+  end
+
+end
+
+describe GitStats::GitData::Tree do
+  include_context "tree_subdir_with_1_commit"
+
+  it 'should gather all authors' do
+    repo.authors.should =~ expected_authors
+  end
+
+  it 'should calculate correct commits period' do
+    repo.commits_period.should == [DateTime.parse('2014-03-21 14:11:46 +0100'),
+                                   DateTime.parse('2014-03-21 14:11:46 +0100')]
+  end
+
+  it 'should gather all commits sorted by date' do
+    repo.commits.map(&:sha).should =~ %w(10d1814)
+  end
+
+  it 'should return project name from dir' do
+    repo.project_name.should == 'test_repo_tree/subdir_with_1_commit'
+  end
+
+  it 'should return project version as last commit hash' do
+    repo.project_version.should == '5fd0f5e'
+  end
+
+  it 'should count files in repo' do
+    repo.files_count.should == 2
+  end
+
+  it 'should count files by date' do
+    repo.files_count_by_date.keys == Hash[commit_dates_with_empty.zip [2]]
+  end
+
+  it 'should count lines by date' do
+    repo.files_count_by_date.values == Hash[commit_dates_with_empty.zip [1]]
+  end
+
+  it 'should count all lines in repo' do
+    repo.lines_count.should == 0
+  end
+
+  it 'should count files by extension in repo' do
+    repo.files_by_extension_count.should == {'' => 2}
+  end
+
+  it 'should count lines by extension in repo' do
+    repo.lines_by_extension.should == {}
+  end
+
+  it 'should count commits_count_by_author' do
+    repo.commits_count_by_author.keys.should == expected_authors
+    repo.commits_count_by_author.values.should == [1]
+  end
+
+  it 'should count lines_added_by_author' do
+    repo.insertions_by_author.keys.should == expected_authors
+    repo.insertions_by_author.values.should == [0]
+  end
+
+  it 'should count lines_deleted_by_author' do
+    repo.deletions_by_author.keys.should == expected_authors
+    repo.deletions_by_author.values.should == [0]
+  end
+
+end
+
+describe GitStats::GitData::Tree do
+  include_context "tree_subdir_with_2_commit"
+
+  it 'should gather all authors' do
+    repo.authors.should =~ expected_authors
+  end
+
+  it 'should calculate correct commits period' do
+    repo.commits_period.should == [DateTime.parse('2014-03-21 14:12:23 +0100'),
+                                   DateTime.parse('2014-03-21 14:12:47 +0100')]
+  end
+
+  it 'should gather all commits sorted by date' do
+    repo.commits.map(&:sha).should =~ %w(435e0ef 5fd0f5e)
+  end
+
+  it 'should return project name from dir' do
+    repo.project_name.should == 'test_repo_tree/subdir_with_2_commits'
+  end
+
+  it 'should return project version as last commit hash' do
+    repo.project_version.should == '5fd0f5e'
+  end
+
+  it 'should count files in repo' do
+    repo.files_count.should == 2
+  end
+
+  it 'should count files by date' do
+    repo.files_count_by_date.keys == Hash[commit_dates_with_empty.zip [1, 2]]
+  end
+
+  it 'should count lines by date' do
+    repo.files_count_by_date.values == Hash[commit_dates_with_empty.zip [2, 2]]
+  end
+
+  it 'should count all lines in repo' do
+    repo.lines_count.should == 0
+  end
+
+  it 'should count files by extension in repo' do
+    repo.files_by_extension_count.should == {'' => 2}
+  end
+
+  it 'should count lines by extension in repo' do
+    repo.lines_by_extension.should == {}
+  end
+
+  it 'should count commits_count_by_author' do
+    repo.commits_count_by_author.keys.should == expected_authors
+    repo.commits_count_by_author.values.should == [2]
+  end
+
+  it 'should count lines_added_by_author' do
+    repo.insertions_by_author.keys.should == expected_authors
+    repo.insertions_by_author.values.should == [0]
+  end
+
+  it 'should count lines_deleted_by_author' do
+    repo.deletions_by_author.keys.should == expected_authors
+    repo.deletions_by_author.values.should == [0]
+  end
+
+end

templates/general.haml

@@ -5,6 +5,9 @@
   %tr
     %td= :project_version.t
     %td= repo.project_version
+  %tr
+    %td= :tree_path.t
+    %td= repo.tree_path
   %tr
     %td= :generated_at.t
     %td= I18n.localize(DateTime.now, format: :long)