1 files changed, 93 insertions, 0 deletions
diff --git a/lib/chef/provider/group/pw.rb b/lib/chef/provider/group/pw.rb
new file mode 100644
index 0000000000..3bf67a515a
--- /dev/null
+++ b/lib/chef/provider/group/pw.rb
@@ -0,0 +1,93 @@
+#
+# 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
+        end
+        
+        def define_resource_requirements
+          super
+
+          requirements.assert(:all_actions) do |a| 
+            a.assertion { ::File.exists?("/usr/sbin/pw") } 
+            a.failure_message Chef::Exceptions::Group, "Could not find binary /usr/sbin/pw for #{@new_resource}"
+            # No whyrun alternative: this component should be available in the base install of any given system that uses it
+          end
+        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}"
+          if @new_resource.gid && (@current_resource.gid != @new_resource.gid)
+            Chef::Log.debug("#{@new_resource}: current gid (#{@current_resource.gid}) doesnt match target gid (#{@new_resource.gid}), changing it")
+            opts << " -g '#{@new_resource.gid}'"
+          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