gibbels-common

1.0.2

scripts/utilities/utilities.ps1

<#
 .Synopsis
  Parses a .Net Framework version string
 
.Description
  Parses a .Net Framework version string and returns a human readable representation
 
.Example
  Parse-DotNetVersionString -VersionString "4.6"
#>
function Parse-DotNetVersionString {
   
   param
   (
        [ValidatePattern("^[0-9]")]
        [Parameter(Mandatory=$true)]
        [string]$VersionString
   )

   if($VersionString.Contains(".")){
    return ".Net Framework v$($VersionString.Substring(0,3).TrimEnd(".0"))";
   }
   return ".Net Framework v$($VersionString.TrimEnd(".0"))";
} 

<#
 .Synopsis
  Checks which versions of .Net are currently installed
 
.Description
  Uses the registry to determine which versions of .Net are installed
 
.Example
  Get-DotNetVersions
#>
function Get-DotNetVersion {
    $keys = Get-ChildItem -Path "HKLM:\SOFTWARE\Microsoft\NET Framework Setup\NDP\"
    foreach($key in $keys) {
        $name = $key.Name.Split("\")[-1]
        if($name -like "v*") {
           $version = $key.GetValue("Version", "");
           if($key.GetValue("Install", "") -eq "1"){
            [DotNetVersion]::new($(Parse-DotNetVersionString $version), "N/A", [version]$version, $key.GetValue("SP", ""));
           }
           if($version -ne ""){
            continue;
           }
           foreach($subkeyName in $key.GetSubKeyNames()){
             $subkey = $key.OpenSubKey($subkeyName);
             $install = $subkey.GetValue("Install", "");
             $version = $subkey.GetValue("Version", "")
             $servicePack = $subkey.GetValue("SP", "N/A")
             if($install -eq "1"){
                [DotNetVersion]::new($(Parse-DotNetVersionString $version), $subkeyName, [version]$version, $servicePack);
             }
           }
        }
    }
}