~ubuntu-branches/ubuntu/karmic/chef/karmic

#

# Author:: Stephen Haynes (<sh@nomitor.com>)

# Copyright:: Copyright (c) 2009 Opscode, Inc.

# License:: Apache License, Version 2.0

#

# 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.

#

 

class Chef

  class Provider

    class Group

      class Pw < Chef::Provider::Group

        

        def load_current_resource

          super

          raise Chef::Exceptions::Group, "Could not find binary /usr/sbin/pw for #{@new_resource}" unless ::File.exists?("/usr/sbin/pw")

        end

        

        # Create the group

        def create_group

          command = "pw groupadd"

          command << set_options

          command << set_members_option

          run_command(:command => command)

        end

        

        # Manage the group when it already exists

        def manage_group

          command = "pw groupmod"

          command << set_options

          command << set_members_option

          run_command(:command => command)

        end

        

        # Remove the group

        def remove_group

          run_command(:command => "pw groupdel #{@new_resource.group_name}")

        end

        

        # Little bit of magic as per Adam's useradd provider to pull and assign the command line flags

        #

        # ==== Returns

        # <string>:: A string containing the option and then the quoted value

        def set_options

          opts = " #{@new_resource.group_name}"

          { :gid => "-g" }.sort { |a,b| a[0] <=> b[0] }.each do |field, option|

            if @current_resource.send(field) != @new_resource.send(field)

              if @new_resource.send(field)

                Chef::Log.debug("#{@new_resource}: setting #{field.to_s} to #{@new_resource.send(field)}")

                opts << " #{option} '#{@new_resource.send(field)}'"

              end

            end

          end

          opts

        end

 

        # Set the membership option depending on the current resource states

        def set_members_option

          opt = ""

          unless @new_resource.members.empty?

            opt << " -M #{@new_resource.members.join(',')}"

            Chef::Log.debug("#{@new_resource}: setting group members to #{@new_resource.members.join(', ')}")

          else

            # New member list is empty so we should delete any old group members

            unless @current_resource.members.empty?

              opt << " -d #{@current_resource.members.join(',')}"

              Chef::Log.debug("#{@new_resource}: removing group members #{@current_resource.members.join(', ')}")

            else

              Chef::Log.debug("#{@new_resource}: not changing group members, the group has no members")

            end

          end

          opt

        end

        

      end

    end

  end

end