Update cookbooks and add wordpress cookbook

cookbooks/ark/libraries/tar_command_builder.rb

@@ -0,0 +1,49 @@
+module Ark
+  class TarCommandBuilder
+    def unpack
+      "#{tar_binary} #{args} #{resource.release_file}#{strip_args}"
+    end
+
+    def dump
+      "tar -mxf \"#{resource.release_file}\" -C \"#{resource.path}\""
+    end
+
+    def cherry_pick
+      "#{tar_binary} #{args} #{resource.release_file} -C #{resource.path} #{resource.creates}#{strip_args}"
+    end
+
+    def initialize(resource)
+      @resource = resource
+    end
+
+    private
+
+    attr_reader :resource
+
+    def node
+      resource.run_context.node
+    end
+
+    def tar_binary
+      resource.run_context.node['ark']['tar']
+    end
+
+    def args
+      case resource.extension
+      when /^(tar)$/         then "xf"
+      when /^(tar.gz|tgz)$/  then "xzf"
+      when /^(tar.bz2|tbz)$/ then "xjf"
+      when /^(tar.xz|txz)$/  then "xJf"
+      else raise unsupported_extension
+      end
+    end
+
+    def strip_args
+      resource.strip_components > 0 ? " --strip-components=#{resource.strip_components}" : ""
+    end
+
+    def unsupported_extension
+      "Don't know how to expand #{resource.url} (extension: #{resource.extension})"
+    end
+  end
+end