add http downloader - that download repo with http and then decompress them

lib/cocoapods/command/repo.rb

 require 'fileutils'
+require 'yaml'
 
 module Pod
   class Command

lib/cocoapods/downloader.rb

@@ -6,6 +6,7 @@ module Pod
     autoload :GitHub,     'cocoapods/downloader/git'
     autoload :Mercurial,  'cocoapods/downloader/mercurial'
     autoload :Subversion, 'cocoapods/downloader/subversion'
+    autoload :Http,       'cocoapods/downloader/http'
 
     extend Executable
 
@@ -40,6 +41,8 @@ module Pod
         Mercurial.new(target_path, url, options)
       elsif url = options.delete(:svn)
         Subversion.new(target_path, url, options)
+      elsif url = options.delete(:http)
+        Http.new(target_path, url, options)
       else
         raise "Unsupported download strategy `#{options.inspect}'."
       end

lib/cocoapods/downloader/http.rb

+require 'open-uri'
+require 'tempfile'
+require 'zlib'
+require 'yaml'
+
+module Pod
+  class Downloader
+    class Http < Downloader
+      executable :curl
+      executable :unzip
+      executable :tar
+      
+      attr_accessor :download_file_path
+      def download
+        type            = options[:type] || type_with_url(url)
+        filename        = filename_with_type type
+        @download_path  = target_path + filename
+
+        download_file @download_path
+        extract_with_type @download_path, type
+      end
+
+      def clean
+        FileUtils.rm @download_path
+      end
+
+      private
+      def type_with_url(url)
+        if url =~ /.zip$/
+          :zip
+        elsif url =~ /.tgz$/
+          :tgz
+        elsif url =~ /.tar$/
+          :tar
+        else
+          nil
+        end
+      end
+      
+      def filename_with_type(type=:zip)
+        case type
+        when :zip
+          "file.zip"
+        when :tgz
+          "file.tgz"
+        when :tar
+          "file.tar"
+        else
+          raise "Pod::Downloader::Http Unsupported file type: #{type}"
+        end
+      end
+      
+      def download_file(full_filename)
+        curl "-L -o '#{full_filename}' '#{url}'"
+      end
+
+      def extract_with_type(full_filename, type=:zip)
+        case type
+        when :zip
+          unzip "'#{full_filename}' -d #{target_path}"
+        when :tgz
+          tar "xfz '#{full_filename}' -d #{target_path}"
+        when :tar
+          tar "xf '#{full_filename}' -d #{target_path}"
+        else
+          raise "Http Downloader: Unsupported file type"
+        end
+      end
+
+    end
+  end
+end