Initial Chef repository

cookbooks/windows/providers/pagefile.rb

@@ -0,0 +1,153 @@
+#
+# Author:: Kevin Moser (<kevin.moser@nordstrom.com>)
+# Cookbook Name:: windows
+# Provider:: pagefile
+#
+# Copyright:: 2012, Nordstrom, 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.
+#
+
+include Chef::Mixin::ShellOut
+include Windows::Helper
+
+action :set do
+  pagefile = @new_resource.name
+  initial_size = @new_resource.initial_size
+  maximum_size = @new_resource.maximum_size
+  system_managed = @new_resource.system_managed
+  automatic_managed = @new_resource.automatic_managed
+  updated = false
+
+  if automatic_managed
+    unless automatic_managed?
+      set_automatic_managed
+      updated = true
+    end
+  else
+    if automatic_managed?
+      unset_automatic_managed
+      updated = true
+    end
+
+    # Check that the resource is not just trying to unset automatic managed, if it is do nothing more
+    if (initial_size && maximum_size) || system_managed
+      unless exists?(pagefile)
+        create(pagefile)
+      end
+
+      if system_managed
+        unless max_and_min_set?(pagefile, 0, 0)
+          set_system_managed(pagefile)
+          updated = true
+        end
+      else
+        unless max_and_min_set?(pagefile, initial_size, maximum_size)
+          set_custom_size(pagefile, initial_size, maximum_size)
+          updated = true
+        end
+      end
+    end
+  end
+
+  new_resource.updated_by_last_action(updated)
+end
+
+action :delete do
+  pagefile = @new_resource.name
+  updated = false
+
+  if exists?(pagefile)
+    delete(pagefile)
+    updated = true
+  end
+
+  new_resource.updated_by_last_action(updated)
+end
+
+
+private
+def exists?(pagefile)
+  @exists ||= begin
+    cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" list /format:list", {:returns => [0]})
+    cmd.stderr.empty? && (cmd.stdout =~ /SettingID=#{get_setting_id(pagefile)}/i)
+  end
+end
+
+def max_and_min_set?(pagefile, min, max)
+  @max_and_min_set ||= begin
+    cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" list /format:list", {:returns => [0]})
+    cmd.stderr.empty? && (cmd.stdout =~ /InitialSize=#{min}/i) && (cmd.stdout =~ /MaximumSize=#{max}/i)
+  end
+end
+
+def create(pagefile)
+  Chef::Log.debug("Creating pagefile #{pagefile}")
+  cmd = shell_out("#{wmic} pagefileset create name=\"#{win_friendly_path(pagefile)}\"")
+  check_for_errors(cmd.stderr)
+end
+
+def delete(pagefile)
+  Chef::Log.debug("Removing pagefile #{pagefile}")
+  cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" delete")
+  check_for_errors(cmd.stderr)
+end
+
+def automatic_managed?
+  @automatic_managed ||= begin
+    cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" get AutomaticManagedPagefile /format:list")
+    cmd.stderr.empty? && (cmd.stdout =~ /AutomaticManagedPagefile=TRUE/i)
+  end
+end
+
+def set_automatic_managed
+  Chef::Log.debug("Setting pagefile to Automatic Managed")
+  cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=True")
+  check_for_errors(cmd.stderr)
+end
+
+def unset_automatic_managed
+  Chef::Log.debug("Setting pagefile to User Managed")
+  cmd = shell_out("#{wmic} computersystem where name=\"%computername%\" set AutomaticManagedPagefile=False")
+  check_for_errors(cmd.stderr)
+end
+
+def set_custom_size(pagefile, min, max)
+  Chef::Log.debug("Setting #{pagefile} to InitialSize=#{min} & MaximumSize=#{max}")
+  cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=#{min},MaximumSize=#{max}", {:returns => [0]})
+  check_for_errors(cmd.stderr)
+end
+
+def set_system_managed(pagefile)
+  Chef::Log.debug("Setting #{pagefile} to System Managed")
+  cmd = shell_out("#{wmic} pagefileset where SettingID=\"#{get_setting_id(pagefile)}\" set InitialSize=0,MaximumSize=0", {:returns => [0]})
+  check_for_errors(cmd.stderr)
+end
+
+def get_setting_id(pagefile)
+  pagefile = win_friendly_path(pagefile)
+  pagefile = pagefile.split("\\")
+  "#{pagefile[1]} @ #{pagefile[0]}"
+end
+
+def check_for_errors(stderr)
+  unless stderr.empty?
+    Chef::Log.fatal(stderr)
+  end
+end
+
+def wmic
+  @wmic ||= begin
+    locate_sysnative_cmd("wmic.exe")
+  end
+end