Add support for overwriting existing Gem.

Added command line -o or --overwrite.  Tested with Ruby-1.9.3-p392.  Updated
readme.markdown with new options.  Revised version.  Current gems require
Gemfile to source rubygems.org via HTTPS.

.gitignore

@@ -5,3 +5,4 @@ Gemfile.lock
 vendor/bundle
 .rbenv-version
 test/fixtures/fake_home_path/.gem/specs
+.idea

README.markdown

@@ -7,13 +7,14 @@ The bundler dependencies API is supported out of the box.
 Authentication is left up to either the web server, or the Rack stack.
 For basic auth, try [Rack::Auth](http://rack.rubyforge.org/doc/Rack/Auth/Basic.html).
 
-
-
-
 ![screen shot](http://pics.tomlea.co.uk/bbbba6/geminabox.png)
 
+## System Requirements
 
+    Tested on Mac OS X 10.8.2
+    Ruby 1.9.3-392
 
+    Tests fail on Ruby 2.0.0-p0
 
 ## Server Setup
 
@@ -51,6 +52,34 @@ Change the host to upload to:
 
 Simples!
 
+## Command Line Help
+
+    Usage: gem inabox GEM [options]
+
+      Options:
+        -c, --configure                  Configure GemInABox
+        -g, --host HOST                  Host to upload to.
+        -o, --overwrite                  Overwrite Gem.
+
+
+      Common Options:
+        -h, --help                       Get help on this command
+        -V, --[no-]verbose               Set the verbose level of output
+        -q, --quiet                      Silence commands
+            --config-file FILE           Use this config file instead of default
+            --backtrace                  Show stack backtrace on errors
+            --debug                      Turn on Ruby debugging
+
+
+      Arguments:
+        GEM       built gem to push up
+
+      Summary:
+        Push a gem up to your GemInABox
+
+      Description:
+        Push a gem up to your GemInABox
+
 ## Licence
 
 Fork it, mod it, choose it, use it, make it better. All under the [do what the fuck you want to + beer/pizza public license][WTFBPPL].

lib/geminabox.rb

@@ -105,7 +105,7 @@ def fixup_bundler_rubygems!
   def handle_incoming_gem(gem)
     prepare_data_folders
     error_response(400, "Cannot process gem") unless gem.valid?
-    handle_replacement(gem)
+    handle_replacement(gem) if params[:overwrite] == "false"
     write_and_index(gem)
 
     if api_request?
@@ -155,7 +155,7 @@ def handle_replacement(gem)
       if existing_file_digest != gem.hexdigest
         error_response(409, "Updating an existing gem is not permitted.\nYou should either delete the existing version, or change your version number.")
       else
-        error_response(200, "Ignoring upload, you uploaded the same thing previously.")
+        error_response(200, "Ignoring upload, you uploaded the same thing previously.\nPlease use -o to ovewrite.")
       end
     end
   end

lib/geminabox/version.rb

@@ -1 +1 @@
-GeminaboxVersion = '0.10.1' unless defined? GeminaboxVersion
+GeminaboxVersion = '0.10.2' unless defined? GeminaboxVersion

lib/geminabox_client.rb

@@ -26,8 +26,8 @@ def url_for(path)
     url + path.to_s
   end
 
-  def push(gemfile)
-    response = http_client.post(url_for(:upload), {'file' => File.open(gemfile, "rb")}, {'Accept' => 'text/plain'})
+  def push(gemfile, options = {})
+    response = http_client.post(url_for(:upload), { 'file' => File.open(gemfile, "rb"), 'overwrite' => !!options[:overwrite] }, { 'Accept' => 'text/plain' })
 
     if response.status < 300
       response.body

lib/rubygems/commands/inabox_command.rb

@@ -23,6 +23,10 @@ def initialize
     add_option('-g', '--host HOST', "Host to upload to.") do |value, options|
       options[:host] = value
     end
+
+    add_option('-o', '--overwrite', "Overwrite Gem.") do |value, options|
+      options[:overwrite] = true
+    end
   end
 
   def last_minute_requires!
@@ -51,7 +55,7 @@ def send_gems(gemfiles)
     gemfiles.each do |gemfile|
       say "Pushing #{File.basename(gemfile)} to #{client.url}..."
       begin
-        say client.push(gemfile)
+        say client.push(gemfile, options)
       rescue GeminaboxClient::Error => e
         alert_error e.message
         terminate_interaction(1)