1 files changed, 46 insertions, 0 deletions
diff --git a/lib/chef/knife/diff.rb b/lib/chef/knife/diff.rb
new file mode 100644
index 0000000000..57d3bf3f0c
--- /dev/null
+++ b/lib/chef/knife/diff.rb
@@ -0,0 +1,46 @@
+require 'chef/chef_fs/knife'
+require 'chef/chef_fs/command_line'
+
+class Chef
+  class Knife
+    class Diff < Chef::ChefFS::Knife
+      banner "knife diff PATTERNS"
+
+      common_options
+
+      option :recurse,
+        :long => '--[no-]recurse',
+        :boolean => true,
+        :default => true,
+        :description => "List directories recursively."
+
+      option :name_only,
+        :long => '--name-only',
+        :boolean => true,
+        :description => "Only show names of modified files."
+
+      option :name_status,
+        :long => '--name-status',
+        :boolean => true,
+        :description => "Only show names and statuses of modified files: Added, Deleted, Modified, and Type Changed."
+
+      def run
+        if config[:name_only]
+          output_mode = :name_only
+        end
+        if config[:name_status]
+          output_mode = :name_status
+        end
+        patterns = pattern_args_from(name_args.length > 0 ? name_args : [ "" ])
+
+        # Get the matches (recursively)
+        patterns.each do |pattern|
+          Chef::ChefFS::CommandLine.diff(pattern, chef_fs, local_fs, config[:recurse] ? nil : 1, output_mode) do |diff|
+            puts diff
+          end
+        end
+      end
+    end
+  end
+end
+