Contributors graphs feature for GitLab

Created tests and refactored some code along the way

Added stat graph util spec, refactored code

finsihed up tests and refactors

finsihed up tests and refactors

2 files changed, 52 insertions, 0 deletions

diff --git a/lib/gitlab/git_stats.rb b/lib/gitlab/git_stats.rb
new file mode 100644
index 00000000000..1f303f6de64
--- /dev/null
+++ b/lib/gitlab/git_stats.rb
@@ -0,0 +1,20 @@
+require 'gitlab/git_stats_log_parser'
+
+module Gitlab
+  class GitStats
+    attr_accessor :repo, :ref
+
+    def initialize repo, ref
+      @repo, @ref = repo, ref
+    end
+
+    def log
+      args = ['--format=%aN%x0a%ad', '--date=short', '--shortstat', '--no-merges']
+      repo.git.run(nil, 'log', nil, {}, args)
+    end
+
+    def parsed_log
+      LogParser.parse_log(log)
+    end
+  end
+end
diff --git a/lib/gitlab/git_stats_log_parser.rb b/lib/gitlab/git_stats_log_parser.rb
new file mode 100644
index 00000000000..784e08c27b9
--- /dev/null
+++ b/lib/gitlab/git_stats_log_parser.rb
@@ -0,0 +1,32 @@
+class LogParser
+  #Parses the log file into a collection of commits
+  #Data model: {author, date, additions, deletions}
+  def self.parse_log log_from_git
+    log = log_from_git.split("\n")
+
+    i = 0
+    collection = []
+    entry = {}
+
+    while i <= log.size do
+      pos = i % 4
+      case pos
+      when 0 
+        unless i == 0
+          collection.push(entry)
+          entry = {}
+        end
+        entry[:author] = log[i].to_s
+      when 1
+        entry[:date] = log[i].to_s
+      when 3
+        changes = log[i].split(",")
+        entry[:additions] = changes[1].to_i unless changes[1].nil?
+        entry[:deletions] = changes[2].to_i unless changes[2].nil?
+      end
+      i += 1
+    end
+
+    collection
+  end
+end
\ No newline at end of file