delameko · January 16, 2012 15:31 · Apr 8, 2011
diff --git a/pow_port.rb b/pow_port.rb
@@ -0,0 +1,47 @@
+#!/usr/bin/env ruby
+
+# Pow Port
+#
+# Quickly and easily change the port that Pow is running on. This allows
+# you too run Apache and Pow side-by-side (on different ports of course).
+#
+# WARNING: This will OVERWRITE your ~/.powconfig file.  If you have custom
+# configurations in there, please back it up first.
+#
+# This file must be executable (chmod +x pow_port.rb)
+# This must be ran with administrative privelages (sudo).
+#
+# Usage:
+# sudo ./pow_port.rb <new_port>
+#
+# Author:    Dan Horrigan <http://dhorrigan.com>
+# Copyright: 2011 Dan Horrigan
+# License:   MIT License
+
+if ARGV[0].nil?
+  puts 'Usage: sudo ./pow_port.rb <new_port>'
+  exit
+end
+
+new_port = ARGV[0]
+rule_num = nil
+fw_rules = `sudo ipfw list`
+
+fw_rules.split("\n").each do |rule|
+  unless rule.index(",20559 ").nil?
+    rule_num = rule.split(" ")[0]
+    break
+  end
+end
+
+if rule_num.nil?
+  puts "Could not find the firewall rule.  Are you sure you have Pow installed?"
+  exit
+end
+
+system("sudo ipfw delete #{rule_num}")
+system("sudo ipfw add fwd 127.0.0.1,20559 tcp from any to me dst-port #{new_port} in 1> /dev/null")
+
+File.open(File.expand_path("~/.powconfig"), 'w+') {|f| f.write("export POW_DST_PORT=#{new_port}") }
+
+puts "Pow is now running on port #{new_port}! You may need to restart your browser to see the results."