repo#authors is now an array

lib/git_stats/by_field_finder.rb

@@ -0,0 +1,6 @@
+module ByFieldFinder
+  def method_missing(name, *args, &block)
+    field = name[/^by_(.*)$/, 1]
+    field ? find { |e| e.send(field) == args.first } : super
+  end
+end

lib/git_stats/git_data/repo.rb

@@ -13,16 +13,15 @@ module GitStats
       end
 
       def authors
-        @authors ||= Command.new(self, 'git shortlog -se HEAD').run_and_parse.inject({}) do |hash, author|
-          hash[author[:email]] = Author.new(repo: self, name: author[:name], email: author[:email])
-          hash
-        end
+        @authors ||= Command.new(self, 'git shortlog -se HEAD').run_and_parse.map do |author|
+          Author.new(repo: self, name: author[:name], email: author[:email])
+        end.extend(ByFieldFinder)
       end
 
       def commits
         @commits ||= Command.new(self, 'git rev-list --pretty=format:"%h|%at|%ai|%aE" HEAD | grep -v commit').run.lines.map do |commit_line|
           hash, stamp, date, author_email = commit_line.split('|').map(&:strip)
-          author = authors[author_email]
+          author = authors.by_email(author_email)
 
           date = DateTime.parse(date)
           Commit.new(repo: self, hash: hash, stamp: stamp, date: date, author: author)

spec/by_field_finder_spec.rb

@@ -0,0 +1,24 @@
+require 'spec_helper'
+
+describe ByFieldFinder do
+  let(:sut) { [double(field1: 'aa', field2: 'bb'), double(field1: 'cc', field2: 'bb'), double(field1: 'aa', field2: 'dd')].extend(ByFieldFinder) }
+
+  [
+      {field: :field1, search_value: 'aa', matching_index: 0},
+      {field: :field1, search_value: 'cc', matching_index: 1},
+      {field: :field2, search_value: 'bb', matching_index: 0},
+      {field: :field2, search_value: 'dd', matching_index: 2},
+  ].each do |test_params|
+    it 'should return first matching object' do
+      sut.send("by_#{test_params[:field]}", test_params[:search_value]).should == sut[test_params[:matching_index]]
+    end
+  end
+
+  it 'should return nil if no object matches' do
+    sut.by_field1('xx').should == nil
+  end
+
+  it 'should throw exception if elements doesnt respond to given field' do
+    expect { sut.by_non_existing_field }.to raise_error
+  end
+end

spec/integration/repo_spec.rb

@@ -0,0 +1,14 @@
+require 'spec_helper'
+
+describe GitStats::GitData::Repo do
+  let(:repo) { build(:repo, path: 'spec/integration/test_repo', last_commit: '81e8be') }
+  let(:expected_authors) { [
+      build(:author, repo: repo, name: "Tomasz Gieniusz", email: "tomasz.gieniusz@gmail.com"),
+      build(:author, repo: repo, name: "John Doe", email: "john.doe@gmail.com"),
+  ] }
+
+  it 'should return all authors' do
+    repo.authors.should =~ expected_authors
+  end
+
+end

spec/repo_spec.rb

@@ -2,10 +2,10 @@ require 'spec_helper'
 
 describe GitStats::GitData::Repo do
   let(:repo) { build(:repo) }
-  let(:expected_authors) { {
-      "john.doe@gmail.com" => build(:author, repo: repo, name: "John Doe", email: "john.doe@gmail.com"),
-      "joe.doe@gmail.com" => build(:author, repo: repo, name: "Joe Doe", email: "joe.doe@gmail.com")
-  } }
+  let(:expected_authors) { [
+      build(:author, repo: repo, name: "John Doe", email: "john.doe@gmail.com"),
+      build(:author, repo: repo, name: "Joe Doe", email: "joe.doe@gmail.com")
+  ] }
 
   describe 'commit range' do
     it 'should return HEAD by default' do
@@ -48,13 +48,13 @@ 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"),
-              author: repo.authors["john.doe@gmail.com"]),
+              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"),
-              author: repo.authors["joe.doe@gmail.com"]),
+              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"),
-              author: repo.authors["john.doe@gmail.com"])
+              author: repo.authors.by_email("john.doe@gmail.com"))
       ]
     end
   end