diff --git a/lib/git_stats/git_data/blob.rb b/lib/git_stats/git_data/blob.rb
index 94db7ac93..f0ef85ba9 100644
--- a/lib/git_stats/git_data/blob.rb
+++ b/lib/git_stats/git_data/blob.rb
@@ -5,14 +5,14 @@ module GitStats
     class Blob
       include HashInitializable
 
-      attr_reader :repo, :hash, :filename
+      attr_reader :repo, :sha, :filename
 
       def lines_count
-        @lines_count ||= binary? ? 0 : repo.run("git cat-file blob #{self.hash} | wc -l").to_i
+        @lines_count ||= binary? ? 0 : repo.run("git cat-file blob #{self.sha} | wc -l").to_i
       end
 
       def content
-        @content ||= repo.run("git cat-file blob #{self.hash}")
+        @content ||= repo.run("git cat-file blob #{self.sha}")
       end
 
       def extension
@@ -20,15 +20,15 @@ module GitStats
       end
 
       def binary?
-        repo.run("git cat-file blob #{self.hash} | grep -m 1 '^'") =~ /Binary file/
+        repo.run("git cat-file blob #{self.sha} | grep -m 1 '^'") =~ /Binary file/
       end
 
       def to_s
-        "#{self.class} #@hash #@filename"
+        "#{self.class} #@sha #@filename"
       end
 
       def ==(other)
-        [self.repo, self.hash, self.filename] == [other.repo, other.hash, other.filename]
+        [self.repo, self.sha, self.filename] == [other.repo, other.sha, other.filename]
       end
 
     end
diff --git a/lib/git_stats/git_data/command_parser.rb b/lib/git_stats/git_data/command_parser.rb
index a2dd64100..d0c410895 100644
--- a/lib/git_stats/git_data/command_parser.rb
+++ b/lib/git_stats/git_data/command_parser.rb
@@ -15,15 +15,15 @@ module GitStats
 
       def parse_ls_tree(result, params)
         result.lines.map do |line|
-          mode, type, hash, filename = line.scan(/(.*) (.*) (.*)\t(.*)/).first.map(&:strip)
-          {mode: mode, type: type, hash: hash, filename: filename}
+          mode, type, sha, filename = line.scan(/(.*) (.*) (.*)\t(.*)/).first.map(&:strip)
+          {mode: mode, type: type, sha: sha, filename: filename}
         end
       end
 
       def parse_rev_list(result, params)
         result.lines.map do |line|
-          hash, stamp, date, author_email = line.split('|').map(&:strip)
-          {hash: hash, stamp: stamp, date: date, author_email: author_email}
+          sha, stamp, date, author_email = line.split('|').map(&:strip)
+          {sha: sha, stamp: stamp, date: date, author_email: author_email}
         end
       end
 
diff --git a/lib/git_stats/git_data/commit.rb b/lib/git_stats/git_data/commit.rb
index 024691ee4..7ffa7abcc 100644
--- a/lib/git_stats/git_data/commit.rb
+++ b/lib/git_stats/git_data/commit.rb
@@ -5,14 +5,22 @@ module GitStats
     class Commit
       include HashInitializable
 
-      attr_reader :repo, :hash, :stamp, :date, :author
+      attr_reader :repo, :sha, :stamp, :date, :author
 
       def files
-        @files ||= repo.run_and_parse("git ls-tree -r #{self.hash}").map do |file|
-          Blob.new(repo: repo, filename: file[:filename], hash: file[:hash])
+        @files ||= repo.run_and_parse("git ls-tree -r #{self.sha}").map do |file|
+          Blob.new(repo: repo, filename: file[:filename], sha: file[:sha])
         end.extend(ByFieldFinder)
       end
 
+      def binary_files
+        @binary_files ||= files.select { |f| f.binary? }
+      end
+
+      def text_files
+        @text_files ||= files - binary_files
+      end
+
       def files_by_extension
         @files_by_extension ||= files.inject({}) { |acc, f| acc[f.extension] ||= []; acc[f.extension] << f; acc }
       end
@@ -28,19 +36,11 @@ module GitStats
       end
 
       def files_count
-        @files_count ||= repo.run("git ls-tree -r --name-only #{self.hash} | wc -l").to_i
-      end
-
-      def binary_files_count
-        files.find_all { |f| f.binary? }.size
-      end
-
-      def text_files_count
-        files_count - binary_files_count
+        @files_count ||= repo.run("git ls-tree -r --name-only #{self.sha} | wc -l").to_i
       end
 
       def lines_count
-        @lines_count ||= repo.run("git diff --shortstat `git hash-object -t tree /dev/null` #{self.hash}").lines.map do |line|
+        @lines_count ||= repo.run("git diff --shortstat `git hash-object -t tree /dev/null` #{self.sha}").lines.map do |line|
           line[/(\d+) insertions?/, 1].to_i
         end.sum
       end
@@ -50,12 +50,12 @@ module GitStats
       end
 
       def to_s
-        "#{self.class} #@hash"
+        "#{self.class} #@sha"
       end
 
       def ==(other)
-        [self.repo, self.hash, self.stamp, self.date, self.author] ==
-            [other.repo, other.hash, other.stamp, other.date, other.author]
+        [self.repo, self.sha, self.stamp, self.date, self.author] ==
+            [other.repo, other.sha, other.stamp, other.date, other.author]
       end
     end
   end
diff --git a/lib/git_stats/git_data/repo.rb b/lib/git_stats/git_data/repo.rb
index 4a1ef5b93..c800f6b21 100644
--- a/lib/git_stats/git_data/repo.rb
+++ b/lib/git_stats/git_data/repo.rb
@@ -8,7 +8,7 @@ module GitStats
       attr_reader :path
 
       delegate :files, :files_by_extension, :files_by_extension_count, :lines_by_extension,
-               :files_count, :binary_files_count, :text_files_count, :lines_count, to: :last_commit
+               :files_count, :binary_files, :text_files, :lines_count, to: :last_commit
 
       def initialize(params)
         super(params)
@@ -25,7 +25,7 @@ module GitStats
         @commits ||= run_and_parse("git rev-list --pretty=format:'%h|%at|%ai|%aE' #{commit_range} | grep -v commit").map do |commit_line|
           Commit.new(
               repo: self,
-              hash: commit_line[:hash],
+              sha: commit_line[:sha],
               stamp: commit_line[:stamp],
               date: DateTime.parse(commit_line[:date]),
               author: authors.by_email(commit_line[:author_email])
@@ -74,11 +74,11 @@ module GitStats
       end
 
       def commit_range
-        @first_commit_hash ? "#@first_commit_hash..#{last_commit_hash}" : last_commit_hash
+        @first_commit_sha ? "#@first_commit_sha..#{last_commit_sha}" : last_commit_sha
       end
 
-      def last_commit_hash
-        @last_commit_hash ||= 'HEAD'
+      def last_commit_sha
+        @last_commit_sha ||= 'HEAD'
       end
 
       def short_stats
diff --git a/lib/git_stats/git_data/short_stat.rb b/lib/git_stats/git_data/short_stat.rb
index 5b5efea9e..ceb4cb799 100644
--- a/lib/git_stats/git_data/short_stat.rb
+++ b/lib/git_stats/git_data/short_stat.rb
@@ -14,7 +14,7 @@ module GitStats
 
       private
       def calculate_stat
-        stat_line = commit.repo.run("git show --shortstat --oneline #{commit.hash}").lines.to_a[1]
+        stat_line = commit.repo.run("git show --shortstat --oneline #{commit.sha}").lines.to_a[1]
         if stat_line.blank?
           @files_changed = @insertions = @deletions = 0
         else
diff --git a/spec/factories.rb b/spec/factories.rb
index c7a9cd5e1..eb339df5f 100644
--- a/spec/factories.rb
+++ b/spec/factories.rb
@@ -15,7 +15,7 @@ FactoryGirl.define do
   end
 
   factory :commit, class: GitStats::GitData::Commit do
-    sequence(:hash) { |i| i }
+    sequence(:sha) { |i| i }
     sequence(:stamp) { |i| i }
     sequence(:date) { |i| Date.new(i) }
     association :repo, strategy: :build
diff --git a/spec/git_data/author_spec.rb b/spec/git_data/author_spec.rb
index 77a430086..e8de1ae94 100644
--- a/spec/git_data/author_spec.rb
+++ b/spec/git_data/author_spec.rb
@@ -4,8 +4,8 @@ describe GitStats::GitData::Author do
   let(:repo) { build(:repo) }
   let(:author) { build(:author, repo: repo) }
   let(:other_author) { build(:author, repo: repo) }
-  let(:my_commits) { 10.times.map { |i| double("my_commit #{i}", :author => author) } }
-  let(:other_commits) { 10.times.map { |i| double("other_commit #{i}", :author => other_author) } }
+  let(:my_commits) { 10.times.map { |i| double("my_commit #{i}", author: author, short_stat: double("my_short_stat #{i}", insertions: 5, deletions: 10)) } }
+  let(:other_commits) { 10.times.map { |i| double("other_commit #{i}", author: other_author) } }
 
   before { repo.stub(:commits => my_commits + other_commits) }
 
@@ -13,5 +13,12 @@ describe GitStats::GitData::Author do
     author.commits.should == my_commits
   end
 
+  it 'should count lines added from short stat' do
+    author.lines_added.should == 50
+  end
+
+  it 'should count lines deleted from short stat' do
+    author.lines_deleted.should == 100
+  end
 
 end
\ No newline at end of file
diff --git a/spec/git_data/blob_spec.rb b/spec/git_data/blob_spec.rb
index 47c678a9b..af7497f4d 100644
--- a/spec/git_data/blob_spec.rb
+++ b/spec/git_data/blob_spec.rb
@@ -2,8 +2,8 @@ require 'spec_helper'
 
 describe GitStats::GitData::Blob do
   let(:repo) { double }
-  let(:png_blob) { GitStats::GitData::Blob.new(filename: 'abc.png', hash: 'hash_png', repo: repo) }
-  let(:txt_blob) { GitStats::GitData::Blob.new(filename: 'abc.txt', hash: 'hash_txt', repo: repo) }
+  let(:png_blob) { GitStats::GitData::Blob.new(filename: 'abc.png', sha: 'hash_png', repo: repo) }
+  let(:txt_blob) { GitStats::GitData::Blob.new(filename: 'abc.txt', sha: 'hash_txt', repo: repo) }
 
   it 'should return 0 as lines count when files is binary' do
     png_blob.should_receive(:binary?).and_return true
diff --git a/spec/git_data/commit_range_spec.rb b/spec/git_data/commit_range_spec.rb
index b7e64971e..958a4b813 100644
--- a/spec/git_data/commit_range_spec.rb
+++ b/spec/git_data/commit_range_spec.rb
@@ -9,22 +9,22 @@ describe GitStats::GitData::Repo do
     end
 
     it 'should return last_commit if it was given' do
-      repo = build(:repo, last_commit_hash: 'abc')
+      repo = build(:repo, last_commit_sha: 'abc')
       repo.commit_range.should == 'abc'
     end
 
     it 'should return range from first_commit to HEAD if first_commit was given' do
-      repo = build(:repo, first_commit_hash: 'abc')
+      repo = build(:repo, first_commit_sha: 'abc')
       repo.commit_range.should == 'abc..HEAD'
     end
 
     it 'should return range from first to last commit if both were given' do
-      repo = build(:repo, first_commit_hash: 'abc', last_commit_hash: 'def')
+      repo = build(:repo, first_commit_sha: 'abc', last_commit_sha: 'def')
       repo.commit_range.should == 'abc..def'
     end
 
     context 'git commands using range' do
-      let(:repo) { build(:repo, first_commit_hash: 'abc', last_commit_hash: 'def') }
+      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("")
diff --git a/spec/git_data/commit_spec.rb b/spec/git_data/commit_spec.rb
index 16d7bac38..723be38ff 100644
--- a/spec/git_data/commit_spec.rb
+++ b/spec/git_data/commit_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe GitStats::GitData::Commit do
-  let(:commit) { build(:commit, hash: 'abc') }
+  let(:commit) { build(:commit, sha: 'abc') }
 
   describe 'git output parsing' do
     context 'parsing git ls-tree output' do
@@ -14,26 +14,26 @@ describe GitStats::GitData::Commit do
 
       it 'should be parsed to files' do
         commit.files.should == [
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "5ade7ad51a75ee7db4eb06cecd3918d38134087d", filename: "lib/git_stats/git_data/commit.rb"),
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "db01e94677a8f72289848e507a52a43de2ea109a", filename: "lib/git_stats/git_data/repo.rb"),
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "1463eacb3ac9f95f21f360f1eb935a84a9ee0895", filename: "templates/activity.haml"),
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "31d8b960a67f195bdedaaf9e7aa70b2389f3f1a8", filename: "templates/assets/bootstrap/css/bootstrap.min.css"),
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "5ade7ad51a75ee7db4eb06cecd3918d38134087d", filename: "lib/git_stats/git_data/commit.rb"),
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "db01e94677a8f72289848e507a52a43de2ea109a", filename: "lib/git_stats/git_data/repo.rb"),
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "1463eacb3ac9f95f21f360f1eb935a84a9ee0895", filename: "templates/activity.haml"),
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "31d8b960a67f195bdedaaf9e7aa70b2389f3f1a8", filename: "templates/assets/bootstrap/css/bootstrap.min.css"),
         ]
       end
 
       it 'should group files by extension' do
         commit.files_by_extension.should == {'.rb' => [
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "5ade7ad51a75ee7db4eb06cecd3918d38134087d", filename: "lib/git_stats/git_data/commit.rb"),
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "db01e94677a8f72289848e507a52a43de2ea109a", filename: "lib/git_stats/git_data/repo.rb")
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "5ade7ad51a75ee7db4eb06cecd3918d38134087d", filename: "lib/git_stats/git_data/commit.rb"),
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "db01e94677a8f72289848e507a52a43de2ea109a", filename: "lib/git_stats/git_data/repo.rb")
         ], '.haml' => [
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "1463eacb3ac9f95f21f360f1eb935a84a9ee0895", filename: "templates/activity.haml")
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "1463eacb3ac9f95f21f360f1eb935a84a9ee0895", filename: "templates/activity.haml")
         ], '.css' => [
-            GitStats::GitData::Blob.new(repo: commit.repo, hash: "31d8b960a67f195bdedaaf9e7aa70b2389f3f1a8", filename: "templates/assets/bootstrap/css/bootstrap.min.css")
+            GitStats::GitData::Blob.new(repo: commit.repo, sha: "31d8b960a67f195bdedaaf9e7aa70b2389f3f1a8", filename: "templates/assets/bootstrap/css/bootstrap.min.css")
         ]
         }
       end
 
-      it 'should count lines by extension' do
+      it 'should count lines by extension excluding empty or binary files' do
         GitStats::GitData::Blob.should_receive(:new).and_return(
             double(lines_count: 40, extension: '.rb'),
             double(lines_count: 60, extension: '.rb'),
diff --git a/spec/git_data/repo_spec.rb b/spec/git_data/repo_spec.rb
index c184f7432..268dd0da9 100644
--- a/spec/git_data/repo_spec.rb
+++ b/spec/git_data/repo_spec.rb
@@ -26,13 +26,13 @@ ce34874|1347482927|2012-09-12 22:48:47 +0200|joe.doe@gmail.com
 
         repo.commits.should == [
             GitStats::GitData::Commit.new(
-                repo: repo, hash: "5eab339", stamp: "1345835073", date: DateTime.parse("2012-08-24 21:04:33 +0200"),
+                repo: repo, sha: "5eab339", stamp: "1345835073", date: DateTime.parse("2012-08-24 21:04:33 +0200"),
                 author: repo.authors.by_email("john.doe@gmail.com")),
             GitStats::GitData::Commit.new(
-                repo: repo, hash: "ce34874", stamp: "1347482927", date: DateTime.parse("2012-09-12 22:48:47 +0200"),
+                repo: repo, sha: "ce34874", stamp: "1347482927", date: DateTime.parse("2012-09-12 22:48:47 +0200"),
                 author: repo.authors.by_email("joe.doe@gmail.com")),
             GitStats::GitData::Commit.new(
-                repo: repo, hash: "e4412c3", stamp: "1348603824", date: DateTime.parse("2012-09-25 22:10:24 +0200"),
+                repo: repo, sha: "e4412c3", stamp: "1348603824", date: DateTime.parse("2012-09-25 22:10:24 +0200"),
                 author: repo.authors.by_email("john.doe@gmail.com"))
         ]
       end
diff --git a/spec/git_data/short_stat_spec.rb b/spec/git_data/short_stat_spec.rb
index 1a4917bc5..d19a3ecf2 100644
--- a/spec/git_data/short_stat_spec.rb
+++ b/spec/git_data/short_stat_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe GitStats::GitData::ShortStat do
-  let(:commit) { build(:commit, hash: 'abc') }
+  let(:commit) { build(:commit, sha: 'abc') }
 
   describe 'git output parsing' do
     context 'parsing git show output' do
diff --git a/spec/integration/author_spec.rb b/spec/integration/author_spec.rb
index e33070c66..29afdefd7 100644
--- a/spec/integration/author_spec.rb
+++ b/spec/integration/author_spec.rb
@@ -7,8 +7,8 @@ describe GitStats::GitData::Activity do
   let(:jd) { repo.authors.by_email('john.doe@gmail.com') }
 
   it 'should filter commits to author' do
-    tg.commits.map(&:hash).should =~ %w(b3b4f81 d60b5ec ab47ef8 2c11f5e c87ecf9 b621a5d 4e7d0e9 872955c)
-    jd.commits.map(&:hash).should =~ %w(fd66657 81e8bef)
+    tg.commits.map(&:sha).should =~ %w(b3b4f81 d60b5ec ab47ef8 2c11f5e c87ecf9 b621a5d 4e7d0e9 872955c)
+    jd.commits.map(&:sha).should =~ %w(fd66657 81e8bef)
   end
 
   context 'activity' do
diff --git a/spec/integration/file_spec.rb b/spec/integration/file_spec.rb
index 9db6127e5..34c5e0681 100644
--- a/spec/integration/file_spec.rb
+++ b/spec/integration/file_spec.rb
@@ -8,7 +8,7 @@ describe GitStats::GitData::Repo do
   end
 
   it 'should retrieve correct file content for old file' do
-    repo.commits.by_hash('c87ecf9').files.by_filename('test.txt').content.should == "bb
+    repo.commits.by_sha('c87ecf9').files.by_filename('test.txt').content.should == "bb
 
 
 
diff --git a/spec/integration/repo_spec.rb b/spec/integration/repo_spec.rb
index 56310e253..c61935363 100644
--- a/spec/integration/repo_spec.rb
+++ b/spec/integration/repo_spec.rb
@@ -1,7 +1,7 @@
 require 'spec_helper'
 
 describe GitStats::GitData::Repo do
-  let(:repo) { build(:test_repo, last_commit_hash: '872955c') }
+  let(:repo) { build(:test_repo, last_commit_sha: '872955c') }
 
   it 'should gather all authors' do
     repo.authors.should =~ [
@@ -15,7 +15,7 @@ describe GitStats::GitData::Repo do
   end
 
   it 'should gather all commits sorted by date' do
-    repo.commits.map(&:hash).should =~ %w(b3b4f81 d60b5ec ab47ef8 2c11f5e c87ecf9 b621a5d fd66657 81e8bef 4e7d0e9 872955c)
+    repo.commits.map(&:sha).should =~ %w(b3b4f81 d60b5ec ab47ef8 2c11f5e c87ecf9 b621a5d fd66657 81e8bef 4e7d0e9 872955c)
   end
 
   it 'should return project name from dir' do
diff --git a/spec/stats_view/charts/repo_charts_spec.rb b/spec/stats_view/charts/repo_charts_spec.rb
index b2328589e..584dc7ced 100644
--- a/spec/stats_view/charts/repo_charts_spec.rb
+++ b/spec/stats_view/charts/repo_charts_spec.rb
@@ -1,16 +1,27 @@
 require 'spec_helper'
 
+shared_examples_for "column_chart" do
+  it 'should be a column chart' do
+    chart.should be_a GitStats::StatsView::Charts::Chart
+    chart.options[:chart][:type].should == "column"
+  end
+end
+
+shared_examples_for "datetime_chart" do
+  it 'should be a datetime chart' do
+    chart.should be_a GitStats::StatsView::Charts::Chart
+    chart.options[:xAxis][:type].should == "datetime"
+  end
+end
+
 describe GitStats::StatsView::Charts::RepoCharts do
   let(:charts) { GitStats::StatsView::Charts::All.new(repo) }
 
   context 'files_by_extension chart' do
     let(:repo) { double(files_by_extension_count: {'.rb' => 5, '.txt' => 3}) }
-    let(:chart) { charts.repo_charts.files_by_extension }
+    let(:chart) { charts.files_by_extension }
 
-    it 'should be a column chart' do
-      chart.should be_a GitStats::StatsView::Charts::Chart
-      chart.options[:chart][:type].should == "column"
-    end
+    it_behaves_like "column_chart"
 
     it 'should have 1 data series with files_by_extension_count' do
       chart.should have(1).data
@@ -21,12 +32,9 @@ describe GitStats::StatsView::Charts::RepoCharts do
 
   context 'lines_by_extension chart' do
     let(:repo) { double(lines_by_extension: {'.rb' => 50, '.txt' => 30}) }
-    let(:chart) { charts.repo_charts.lines_by_extension }
+    let(:chart) { charts.lines_by_extension }
 
-    it 'should be a column chart' do
-      chart.should be_a GitStats::StatsView::Charts::Chart
-      chart.options[:chart][:type].should == "column"
-    end
+    it_behaves_like "column_chart"
 
     it 'should have 1 data series with lines_by_extension' do
       chart.should have(1).data
@@ -37,12 +45,9 @@ describe GitStats::StatsView::Charts::RepoCharts do
 
   context 'files_by_date chart' do
     let(:repo) { double(commits: [double(date: 5)], files_count_each_day: [10, 15, 12, 20]) }
-    let(:chart) { charts.repo_charts.files_by_date }
+    let(:chart) { charts.files_by_date }
 
-    it 'should be a datetime chart' do
-      chart.should be_a GitStats::StatsView::Charts::Chart
-      chart.options[:chart][:type].should == "datetime"
-    end
+    it_behaves_like "datetime_chart"
 
     it 'should have 1 data series with files_by_date' do
       chart.should have(1).data
@@ -53,12 +58,9 @@ describe GitStats::StatsView::Charts::RepoCharts do
 
   context 'lines_by_date chart' do
     let(:repo) { double(commits: [double(date: 6)], lines_count_each_day: [100, 150, 120, 200]) }
-    let(:chart) { charts.repo_charts.lines_by_date }
+    let(:chart) { charts.lines_by_date }
 
-    it 'should be a datetime chart' do
-      chart.should be_a GitStats::StatsView::Charts::Chart
-      chart.options[:chart][:type].should == "datetime"
-    end
+    it_behaves_like "datetime_chart"
 
     it 'should have 1 data series with lines_by_date' do
       chart.should have(1).data
@@ -66,4 +68,30 @@ describe GitStats::StatsView::Charts::RepoCharts do
       chart.data[0][:pointStart].should == 6000
     end
   end
+
+  context 'lines_added_by_author chart' do
+    let(:repo) { double(commits: [double(date: 6)], lines_added_by_author: {double(email: 'author1') => 50, double(email: 'author2') => 30}) }
+    let(:chart) { charts.lines_added_by_author }
+
+    it_behaves_like "column_chart"
+
+    it 'should have 1 data series with lines_added_by_author' do
+      chart.should have(1).data
+      chart.options[:xAxis][:categories].should == %w(author1 author2)
+      chart.data[0][:data].should == [50, 30]
+    end
+  end
+
+  context 'lines_deleted_by_author chart' do
+    let(:repo) { double(commits: [double(date: 6)], lines_deleted_by_author: {double(email: 'author1') => 30, double(email: 'author2') => 50}) }
+    let(:chart) { charts.lines_deleted_by_author }
+
+    it_behaves_like "column_chart"
+
+    it 'should have 1 data series with lines_deleted_by_author' do
+      chart.should have(1).data
+      chart.options[:xAxis][:categories].should == %w(author1 author2)
+      chart.data[0][:data].should == [30, 50]
+    end
+  end
 end
\ No newline at end of file
diff --git a/templates/index.haml b/templates/index.haml
index 57cca42a5..6dcc8d27f 100644
--- a/templates/index.haml
+++ b/templates/index.haml
@@ -16,7 +16,7 @@
     %td= repo.commits_period.map {|d| d.to_formatted_s(:long)}.join(" .. ")
   %tr
     %td= :total_files.t
-    %td= "#{repo.files_count} (binary: #{repo.binary_files_count}, text: #{repo.text_files_count})"
+    %td= "#{repo.files_count} (binary: #{repo.binary_files.size}, text: #{repo.text_files.size})"
   %tr
     %td= :total_lines.t
     %td= "#{repo.lines_count} lines (#{repo.short_stats.map(&:insertions).sum} insertions, #{repo.short_stats.map(&:deletions).sum} deletions)"