From 541393ebf95da14e03baf6a1ebe8aa20f64a6fc6 Mon Sep 17 00:00:00 2001
From: Evan Phoenix <evan@phx.io>
Date: Sat, 6 Feb 2016 23:10:48 -0800
Subject: [PATCH] Add ability for plugins to alter the config on load

---
 lib/puma/cli.rb           | 2 +-
 lib/puma/dsl.rb           | 8 ++++++--
 lib/puma/plugin.rb        | 5 +++++
 lib/puma/plugin_loader.rb | 2 ++
 4 files changed, 14 insertions(+), 3 deletions(-)

diff --git a/lib/puma/cli.rb b/lib/puma/cli.rb
index c9fa15c3..18f904fd 100644
--- a/lib/puma/cli.rb
+++ b/lib/puma/cli.rb
@@ -204,7 +204,7 @@ module Puma
           o.banner = "puma <options> <rackup file>"
 
           o.on_tail "-h", "--help", "Show help" do
-            log o
+            $stdout.puts o
             exit 0
           end
         end
diff --git a/lib/puma/dsl.rb b/lib/puma/dsl.rb
index 7ab8067e..d9685fe0 100644
--- a/lib/puma/dsl.rb
+++ b/lib/puma/dsl.rb
@@ -12,7 +12,7 @@ module Puma
       options
     end
 
-    def initialize(config, options)
+    def initialize(options, config)
       @config = config
       @options = options
     end
@@ -385,7 +385,11 @@ module Puma
     # Load the named plugin for use by this configuration
     #
     def plugin(name)
-      @config.load_plugin name
+      plugin = @config.load_plugin name
+
+      if plugin.respond_to? :config
+        plugin.config self
+      end
     end
   end
 end
diff --git a/lib/puma/plugin.rb b/lib/puma/plugin.rb
index 04ef0b19..2eff6830 100644
--- a/lib/puma/plugin.rb
+++ b/lib/puma/plugin.rb
@@ -26,5 +26,10 @@ module Puma
     def in_background(&blk)
       Thread.new(&blk)
     end
+
+    def workers_supported?
+      return false if Puma.jruby? || Puma.windows?
+      true
+    end
   end
 end
diff --git a/lib/puma/plugin_loader.rb b/lib/puma/plugin_loader.rb
index ab5e70cb..9e7e814e 100644
--- a/lib/puma/plugin_loader.rb
+++ b/lib/puma/plugin_loader.rb
@@ -1,3 +1,5 @@
+require 'puma/plugin'
+
 module Puma
   class UnknownPlugin < RuntimeError; end