Add a composer (PHP) installer.

lib/sprinkle/installers/composer.rb

@@ -0,0 +1,38 @@
+module Sprinkle
+  module Installers
+    # The composer package installer installs PHP packages.
+    #
+    #
+    # == Example Usage
+    #
+    # A simple installation:
+    #
+    #   package :magic_beans do
+    #     description "Beans beans they're good for your heart..."
+    #     composer 'magic/beans'
+    #   end
+    #
+    # You may also specify multiple packages as an array:
+    #
+    #   package :magic_beans do
+    #     composer %w(magic/beans magic/sauce)
+    #   end
+    #
+    class Composer < Installer
+
+      ##
+      # installs PHP packagists passed
+      # :method: composer
+      # :call-seq: composer(*packages)
+      auto_api
+
+      protected
+
+
+        def install_commands #:nodoc:
+          cmd = "#{sudo_cmd}composer global require #{@packages.join(' ')}"
+        end
+
+    end
+  end
+end