move download url and checksums to attribute file

powershell/attributes/default.rb

@@ -18,4 +18,27 @@
 # limitations under the License.
 #
 
-default['powershell']['version'] = 2.0
+case platform_version.to_f
+when 5.1 # Windows XP
+  default['powershell']['url']      = "http://download.microsoft.com/download/E/C/E/ECE99583-2003-455D-B681-68DB610B44A4/WindowsXP-KB968930-x86-ENG.exe"
+  default['powershell']['checksum'] = "0ef2a9b4f500b66f418660e54e18f5f525ed8d0a4d7c50ce01c5d1d39767c00c"
+
+when 5.2 # Windows Server 2003
+  if kernel.machine =~ /x86_64/
+    default['powershell']['url']      = "http://download.microsoft.com/download/B/D/9/BD9BB1FF-6609-4B10-9334-6D0C58066AA7/WindowsServer2003-KB968930-x64-ENG.exe"
+    default['powershell']['checksum'] = "9f5d24517f860837daaac062e5bf7e6978ceb94e4e9e8567798df6777b56e4c8"
+  else
+    default['powershell']['url']      = "http://download.microsoft.com/download/1/1/7/117FB25C-BB2D-41E1-B01E-0FEB0BC72C30/WindowsServer2003-KB968930-x86-ENG.exe"
+    default['powershell']['checksum'] = "71b180e0affd9e005d7151a656414176e727b6dc80a9350e7b2b23bcac0cc98a"
+  end
+
+when 6.0 # Windows Server 2008 & Windows Vista
+  if kernel.machine =~ /x86_64/
+    default['powershell']['url']      = "http://download.microsoft.com/download/2/8/6/28686477-3242-4E96-9009-30B16BED89AF/Windows6.0-KB968930-x64.msu"
+    default['powershell']['checksum'] = "19bd295d354538873afccc7c9a090ae6ba87beb968b20e8280bf5312826de9e3"
+  else
+    default['powershell']['url']      = "http://download.microsoft.com/download/F/9/E/F9EF6ACB-2BA8-4845-9C10-85FC4A69B207/Windows6.0-KB968930-x86.msu"
+    default['powershell']['checksum'] = "1c1fee616014da6e52aa7a117b9bcc3a79ac3d838d686b8afe4f723630225fa2"
+  end
+
+end