make chefstyle optional

if you 'bundle install --without development test' then the Rakefile
will be broken without this.

breaks appbundle-updater, so not sure how our kitchen tests are
passing...

1 files changed, 8 insertions, 4 deletions

diff --git a/Rakefile b/Rakefile
index 36a8e9715b..f6d23b1908 100644
--- a/Rakefile
+++ b/Rakefile
@@ -46,10 +46,14 @@ task :register_eventlog do
 end
 
 
-require "chefstyle"
-require "rubocop/rake_task"
-RuboCop::RakeTask.new(:style) do |task|
-  task.options += ["--display-cop-names", "--no-color"]
+begin
+  require "chefstyle"
+  require "rubocop/rake_task"
+  RuboCop::RakeTask.new(:style) do |task|
+    task.options += ["--display-cop-names", "--no-color"]
+  end
+rescue
+  puts "chefstyle/rubocop is not available.  gem install chefstyle to do style checking."
 end
 
 begin