mongrel_rails: support -n/--num-procs command-line option

Also added "num_procs" support in the config file as
an alias to "num_processors" to make it easier to
migrate configs from/to mongrel_cluster.

ref: http://mongrel.rubyforge.org/ticket/14


git-svn-id: svn://rubyforge.org/var/svn/mongrel/trunk@987 19e92222-5c0b-0410-8929-a290d50e31e9

bin/mongrel_rails

@@ -28,7 +28,7 @@ module Mongrel
         ['-a', '--address ADDR', "Address to bind to", :@address, "0.0.0.0"],
         ['-l', '--log FILE', "Where to write log messages", :@log_file, "log/mongrel.log"],
         ['-P', '--pid FILE', "Where to write the PID", :@pid_file, "log/mongrel.pid"],
-        ['-n', '--num-procs INT', "Number of processors active before clients denied", :@num_procs, 1024],
+        ['-n', '--num-procs INT', "Number of processors active before clients denied", :@num_processors, 1024],
         ['-o', '--timeout TIME', "Time to wait (in seconds) before killing a stalled thread", :@timeout, 60],
         ['-t', '--throttle TIME', "Time to pause (in hundredths of a second) between accepting clients", :@throttle, 0],
         ['-m', '--mime PATH', "A YAML file that lists additional MIME types", :@mime_map, nil],
@@ -170,6 +170,7 @@ module Mongrel
         key = key.to_s
         if config_keys.include?(key)
           key = 'address' if key == 'host'
+          key = 'num_processors' if key == 'num_procs'
           self.instance_variable_set("@#{key}", value)
         else
           failure "Unknown configuration setting: #{key}"  
@@ -180,13 +181,14 @@ module Mongrel
 
     def config_keys
       @config_keys ||=
-        %w(address host port cwd log_file pid_file environment docroot mime_map daemon debug includes config_script num_processors timeout throttle user group prefix)
+        %w(address host port cwd log_file pid_file environment docroot mime_map daemon debug includes config_script num_processors num_procs timeout throttle user group prefix)
     end
 
     def settings
       config_keys.inject({}) do |hash, key|
         value = self.instance_variable_get("@#{key}")
         key = 'host' if key == 'address'
+        key = 'num_processors' if key == 'num_procs'
         hash[key.to_sym] ||= value
         hash
       end