Merge branch 'detect_omnibus' into 'master'

Detect omnibus-gitlab in `rake gitlab:check`

CHANGELOG

@@ -31,6 +31,7 @@ v 7.0.0
   - Add notice about huge push over http to unicorn config
   - File action in satellites uses default 30 seconds timeout instead of old 10 seconds one
   - Overall performance improvements
+  - Skip init script check on omnibus-gitlab
 v 6.9.2
   - Revert the commit that broke the LDAP user filter

lib/tasks/gitlab/check.rake

@@ -123,6 +123,11 @@ namespace :gitlab do
     def check_init_script_exists
       print "Init script exists? ... "
+      if omnibus_gitlab?
+        puts 'skipped (omnibus-gitlab has no init script)'.magenta
+        return
+      end
+
       script_path = "/etc/init.d/gitlab"
       if File.exists?(script_path)
@@ -142,6 +147,11 @@ namespace :gitlab do
     def check_init_script_up_to_date
       print "Init script up-to-date? ... "
+      if omnibus_gitlab?
+        puts 'skipped (omnibus-gitlab has no init script)'.magenta
+        return
+      end
+
       recipe_path = Rails.root.join("lib/support/init.d/", "gitlab")
       script_path = "/etc/init.d/gitlab"
@@ -823,4 +833,8 @@ namespace :gitlab do
       fix_and_rerun
     end
   end
+
+  def omnibus_gitlab?
+    Dir.pwd == '/opt/gitlab/embedded/service/gitlab-rails'
+  end
 end