initial impl for active check of chef server

Signed-off-by: Jose Asuncion <jeunito@gmail.com>

1 files changed, 12 insertions, 0 deletions

diff --git a/lib/chef/knife/list.rb b/lib/chef/knife/list.rb
index 6f314eb86d..7e19a553bc 100644
--- a/lib/chef/knife/list.rb
+++ b/lib/chef/knife/list.rb
@@ -104,6 +104,18 @@ class Chef
         begin
           children = result.children.sort_by { |child| child.name }
         rescue Chef::ChefFS::FileSystem::NotFoundError => e
+          begin
+            rest.get("/clients/#{Chef::Config[:client_name]}")
+          rescue Net::HTTPServerException => e
+            if e.response.class == Net::HTTPNotFound
+              require "json"
+              begin
+                JSON.load(e.response.body())
+              rescue JSON::ParserError
+                raise Chef::Exceptions::NotAChefServerException
+              end
+            end
+          end
           ui.error "#{format_path(e.entry)}: No such file or directory"
           return []
         end