1 files changed, 109 insertions, 0 deletions
diff --git a/lib/chef/knife/list.rb b/lib/chef/knife/list.rb
new file mode 100644
index 0000000000..30fcb5fa35
--- /dev/null
+++ b/lib/chef/knife/list.rb
@@ -0,0 +1,109 @@
+require 'chef/chef_fs/knife'
+require 'chef/chef_fs/file_system'
+
+class Chef
+  class Knife
+    class List < Chef::ChefFS::Knife
+      banner "knife list [-dR] [PATTERN1 ... PATTERNn]"
+
+      common_options
+
+      option :recursive,
+        :short => '-R',
+        :boolean => true,
+        :description => "List directories recursively."
+      option :bare_directories,
+        :short => '-d',
+        :boolean => true,
+        :description => "When directories match the pattern, do not show the directories' children."
+
+      def run
+        patterns = name_args.length == 0 ? [""] : name_args
+
+        # Get the matches (recursively)
+        results = []
+        dir_results = []
+        pattern_args_from(patterns).each do |pattern|
+          Chef::ChefFS::FileSystem.list(chef_fs, pattern) do |result|
+            if result.dir? && !config[:bare_directories]
+              dir_results += add_dir_result(result)
+            elsif result.exists?
+              results << result
+            elsif pattern.exact_path
+              STDERR.puts "#{format_path(result.path)}: No such file or directory"
+            end
+          end
+        end
+
+        results = results.sort_by { |result| result.path }
+        dir_results = dir_results.sort_by { |result| result[0].path }
+
+        if results.length == 0 && dir_results.length == 1
+          results = dir_results[0][1]
+          dir_results = []
+        end
+
+        print_result_paths results
+        dir_results.each do |result, children|
+          puts ""
+          puts "#{format_path(result.path)}:"
+          print_results(children.map { |result| result.name }.sort, "")
+        end
+      end
+
+      def add_dir_result(result)
+        begin
+          children = result.children.sort_by { |child| child.name }
+        rescue Chef::ChefFS::FileSystem::NotFoundError
+          STDERR.puts "#{format_path(result.path)}: No such file or directory"
+          return []
+        end
+
+        result = [ [ result, children ] ]
+        if config[:recursive]
+          children.each do |child|
+            if child.dir?
+              result += add_dir_result(child)
+            end
+          end
+        end
+        result
+      end
+
+      def list_dirs_recursive(children)
+        results = children.select { |child| child.dir? }.to_a
+        results.each do |child|
+          results += list_dirs_recursive(child.children)
+        end
+        results
+      end
+
+      def print_result_paths(results, indent = "")
+        print_results(results.map { |result| format_path(result.path) }, indent)
+      end
+
+      def print_results(results, indent)
+        return if results.length == 0
+
+        print_space = results.map { |result| result.length }.max + 2
+        # TODO: tput cols is not cross platform
+        columns = $stdout.isatty ? Integer(`tput cols`) : 0
+        current_column = 0
+        results.each do |result|
+          if current_column != 0 && current_column + print_space > columns
+            puts ""
+            current_column = 0
+          end
+          if current_column == 0
+            print indent
+            current_column += indent.length
+          end
+          print result + (' ' * (print_space - result.length))
+          current_column += print_space
+        end
+        puts ""
+      end
+    end
+  end
+end
+