Merge branch 'git-version' into 'master'

Show git version on admin page

Before
![git-version-beore](/uploads/57444ad42220c9dfe8f187b8e399227f/git-version-beore.png)

After
![git-version-after](/uploads/cc1b52ae1a251c2c46d9626c040726ab/git-version-after.png)

gitlab-org/gitlab-ce#4077




See merge request !2101

1 files changed, 4 insertions, 0 deletions

diff --git a/lib/gitlab/git.rb b/lib/gitlab/git.rb
index 0c350d7c675..f065cc5e9e9 100644
--- a/lib/gitlab/git.rb
+++ b/lib/gitlab/git.rb
@@ -20,6 +20,10 @@ module Gitlab
       def blank_ref?(ref)
         ref == BLANK_SHA
       end
+
+      def version
+        Gitlab::VersionInfo.parse(Gitlab::Popen.popen(%W(#{Gitlab.config.git.bin_path} --version)).first)
+      end
     end
   end
 end