lib/chef/fork/commands/help.rb in chef-fork-0.1.1 vs lib/chef/fork/commands/help.rb in chef-fork-0.1.2

@@ -1,17 +1,34 @@
 #!/usr/bin/env ruby
 # -*- coding: utf-8 -*-
 
-require "rbconfig"
 require "chef/fork/commands"
+require "json"
+require "rbconfig"
 
 class Chef
   class Fork
     module Commands
       class Help < Noop
         def run(args=[])
-          ruby = File.join(RbConfig::CONFIG["bindir"], RbConfig::CONFIG["ruby_install_name"])
-          exit(system(ruby, $0, "--help") ? 0 : 1)
+          if command = args.shift
+            case command
+            when "commands"
+              paths = $LOAD_PATH.map { |path|
+                File.join(path, "chef", "fork", "commands")
+              }
+              commands = paths.map { |path|
+                Dir.glob(File.join(path, "*.rb")).map { |file| File.basename(file, ".rb") }
+              }.flatten
+              STDOUT.puts(JSON.pretty_generate(commands.sort.uniq))
+            else
+              raise(NotImplementedError.new(command.inspect))
+            end
+          else
+            ruby = File.join(RbConfig::CONFIG["bindir"], RbConfig::CONFIG["ruby_install_name"])
+            exec(ruby, $0, "--help")
+            exit(127)
+          end
         end
       end
     end
   end
 end