Namespace include not working

Question

I'm working on the Opscode IIS cookbook, in my provider iis_site I have

include ::Opscode::IIS::Helper

in my libraries folder I have a file called helper.rb

#
# Cookbook Name:: iis
# Library:: helper
#
# Author:: Julian C. Dunn <jdunn@getchef.com>
#
# Copyright 2013, Chef Software, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

module Opscode
  module IIS
    module Helper
      if RUBY_PLATFORM =~ /mswin|mingw32|windows/
        require 'chef/win32/version'
      end

      require 'rexml/document'
      include REXML

      def self.older_than_windows2008r2?
        if RUBY_PLATFORM =~ /mswin|mingw32|windows/
          win_version = Chef::ReservedNames::Win32::Version.new
          win_version.windows_server_2008? ||
          win_version.windows_vista? ||
          win_version.windows_server_2003_r2? ||
          win_version.windows_home_server? ||
          win_version.windows_server_2003? ||
          win_version.windows_xp? ||
          win_version.windows_2000?
        end
      end

      def self.is_new_value?(document, xpath, value_to_check)
        return XPath.first(document, xpath).to_s == value_to_check ? false : true
      end

      def self.is_new_or_empty_value?(document, xpath, value_to_check)
        return is_new_value(document, xpath, value_to_check) || value_to_check == '' ? false : true
      end

      def self.appcmd(node)
        return "#{node['iis']['home']}/appcmd.exe"
      end
    end
  end
end

In the iis_site.rb file i'm getting the following error:

FATAL: NoMethodError: iis_site[Default Web Site] (iis::remove_default_site line 21) had an error: NoMethodError: No resource or method named appcmd' forChef::Provider::IisSite ""'

If I change the provider line from:

cmd = "#{appcmd(node)} add site /name:\"#{@new_resource.site_name}\""

to

cmd = "#{Opscode::IIS::Helper.appcmd(node)} add site /name:\"#{@new_resource.site_name}\""

the issue is resolved, however this adds a lot of repetition that shouldn't be needed.

Answer 1

Issue was with using self.

Below is the fixed code.

#
# Cookbook Name:: iis
# Library:: helper
#
# Author:: Julian C. Dunn <jdunn@getchef.com>
#
# Copyright 2013, Chef Software, Inc.
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
#     http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
# See the License for the specific language governing permissions and
# limitations under the License.
#

module Opscode
  module IIS
    module Helper
      if RUBY_PLATFORM =~ /mswin|mingw32|windows/
        require 'chef/win32/version'
      end

      require 'rexml/document'
      include REXML

      def self.older_than_windows2008r2?
        if RUBY_PLATFORM =~ /mswin|mingw32|windows/
          win_version = Chef::ReservedNames::Win32::Version.new
          win_version.windows_server_2008? ||
          win_version.windows_vista? ||
          win_version.windows_server_2003_r2? ||
          win_version.windows_home_server? ||
          win_version.windows_server_2003? ||
          win_version.windows_xp? ||
          win_version.windows_2000?
        end
      end

      def is_new_value?(document, xpath, value_to_check)
        return XPath.first(document, xpath).to_s == value_to_check ? false : true
      end

      def is_new_or_empty_value?(document, xpath, value_to_check)
        return is_new_value(document, xpath, value_to_check) || value_to_check == '' ? false : true
      end

      def appcmd(node)
        @appcmd ||= begin
          "#{node['iis']['home']}\\appcmd.exe"
        end
      end
    end
  end
end