Add option to specify host on cmd line. Helpful if you manage several…

… geminaboxes.

Signed-off-by: Tom Lea <commit@tomlea.co.uk>

geminabox.gemspec

@@ -1,6 +1,6 @@
 Gem::Specification.new do |s|
   s.name              = 'geminabox'
-  s.version           = '0.2.9'
+  s.version           = '0.2.10'
   s.summary           = 'Really simple rubygem hosting'
   s.description       = 'A sinatra based gem hosting app, with client side gem push style functionality.'
   s.author            = 'Tom Lea'

lib/rubygems/commands/inabox_command.rb

@@ -19,6 +19,10 @@ def initialize
     add_option('-c', '--configure', "Configure GemInABox") do |value, options|
       options[:configure] = true
     end
+
+    add_option('-g', '--host HOST', "Host to upload to.") do |value, options|
+      options[:host] = value
+    end
   end
 
   def execute
@@ -88,7 +92,7 @@ def configure
   end
 
   def geminabox_host
-    geminabox_host ||= Gem.configuration.load_file(config_path)[:host]
+    @geminabox_host ||= options[:host] || Gem.configuration.load_file(config_path)[:host]
   end
 
   def geminabox_host=(host)