Stats page

1 files changed, 76 insertions, 0 deletions

diff --git a/lib/gitlab/git_stats.rb b/lib/gitlab/git_stats.rb
new file mode 100644
index 00000000000..a83c10ff248
--- /dev/null
+++ b/lib/gitlab/git_stats.rb
@@ -0,0 +1,76 @@
+module Gitlab
+  class GitStats
+    attr_accessor :repo, :ref
+
+    def initialize repo, ref
+      @repo, @ref = repo, ref
+    end
+
+    def authors
+      @authors ||= collect_authors
+    end
+
+    def commits_count
+      @commits_count ||= repo.commit_count(ref)
+    end
+
+    def files_count
+      repo.git.sh("git ls-tree -r --name-only #{ref} | wc -l").first.to_i
+    end
+
+    def authors_count
+      authors.size
+    end
+
+    def graph
+      @graph ||= build_graph
+    end
+
+    protected
+
+    def collect_authors
+      shortlog = repo.git.shortlog({:e => true, :s => true }, ref)
+
+      authors = []
+
+      lines = shortlog.split("\n")
+
+      lines.each do |line|
+        data = line.split("\t")
+        commits = data.first
+        author = Grit::Actor.from_string(data.last)
+
+        authors << OpenStruct.new(
+          name: author.name,
+          email: author.email,
+          commits: commits.to_i
+        )
+      end
+
+      authors.sort_by(&:commits).reverse
+    end
+
+    def build_graph n = 4
+      from, to = (Date.today - n.weeks), Date.today
+
+      format = "--pretty=format:'%h|%at|%ai|%aE'"
+      commits_strings = repo.git.sh("git rev-list --since #{from.to_s(:date)} #{format} #{ref} | grep -v commit")[0].split("\n")
+
+      commits_dates = commits_strings.map do |string|
+        data = string.split("|")
+        date = data[2]
+        Time.parse(date).to_date.to_s(:date)
+      end
+
+      commits_per_day = from.upto(to).map do |day|
+        commits_dates.count(day.to_date.to_s(:date))
+      end
+
+      OpenStruct.new(
+        labels: from.upto(to).map { |day| day.stamp('Aug 23') },
+        commits: commits_per_day,
+        weeks: n
+      )
+    end
+  end
+end