make VS19ExtensionVersion function

images/win/scripts/ImageHelpers/ImageHelpers.psm1

@@ -18,4 +18,5 @@ Export-ModuleMember -Function @(
     'Add-SoftwareDetailsToMarkdown'
     'Stop-SvcWithErrHandling'
     'Set-SvcWithErrHandling'
+    'Get-VS19ExtensionVersion'
 )

images/win/scripts/ImageHelpers/InstallHelpers.ps1

@@ -160,3 +160,31 @@ Hashtable for service arguments
         }
     }
 }
+
+function Get-VS19ExtensionVersion
+{
+    param (
+        [string] [Parameter(Mandatory=$true)] $packageName
+    )
+
+    $vsProgramData = Get-Item -Path "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances"
+    $instanceFolders = Get-ChildItem -Path $vsProgramData.FullName
+
+    if($instanceFolders -is [array])
+    {
+        Write-Host "More than one instance installed"
+        exit 1
+    }
+
+    $stateContent = Get-Content -Path ($instanceFolders.FullName + '\state.packages.json')
+    $state = $stateContent | ConvertFrom-Json
+    $packageVersion = ($state.packages | Where-Object { $_.id -eq $packageName }).version
+
+    if (!$packageVersion)
+    {
+        Write-Host "installed package $packageName for Visual Studio 2019 was not found"
+        exit 1
+    }
+
+    return $packageVersion
+}

images/win/scripts/Installers/Windows2019/Validate-WDK.ps1

@@ -3,28 +3,7 @@
 ##  Desc:  Validate the installation of the Windows Driver Kit
 ################################################################################
 
-function Get-WDKExtensionPackage {
+Import-Module -Name ImageHelpers -Force
-    $vsProgramData = Get-Item -Path "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances"
-    $instanceFolders = Get-ChildItem -Path $vsProgramData.FullName
-
-    if($instanceFolders -is [array])
-    {
-        Write-Host "More than one instance installed"
-        exit 1
-    }
-
-    $stateContent = Get-Content -Path ($instanceFolders.FullName + '\state.packages.json')
-    $state = $stateContent | ConvertFrom-Json
-    $WDKPackageVersion = ($state.packages | where { $_.id -eq "Microsoft.Windows.DriverKit" }).version
-
-    if (!$WDKPackageVersion)
-    {
-        Write-Host "WDK package for Visual studio was not found"
-        exit 1
-    }
-
-    return $WDKPackageVersion
-}
 
 function Get-WDKVersion
 {
@@ -40,7 +19,7 @@ function Get-WDKVersion
 }
 
 $WDKVersion = Get-WDKVersion
-$WDKPackageVersion = Get-WDKExtensionPackage
+$WDKPackageVersion = Get-VS19ExtensionVersion -packageName "Microsoft.Windows.DriverKit"
 
 # Adding description of the software to Markdown
 $SoftwareName = "Windows Driver Kit"

images/win/scripts/Installers/Windows2019/Validate-Wix.ps1

@@ -11,23 +11,6 @@ function Get-WixVersion {
     return $Version
 }
 
-#Gets the extension details from state.json
-function Get-WixExtensionPackage {
-    $vsProgramData = Get-Item -Path "C:\ProgramData\Microsoft\VisualStudio\Packages\_Instances"
-    $instanceFolders = Get-ChildItem -Path $vsProgramData.FullName
-
-    if($instanceFolders -is [array])
-    {
-        Write-Host "More than one instance installed"
-        exit 1
-    }
-
-    $stateContent = Get-Content -Path ($instanceFolders.FullName + '\state.packages.json')
-    $state = $stateContent | ConvertFrom-Json
-    $WixPackage = $state.packages | where { $_.id -eq "WixToolset.VisualStudioExtension.Dev16" }
-    return $WixPackage
-}
-
 $WixToolSetVersion = Get-WixVersion
 
 if($WixToolSetVersion) {
@@ -38,22 +21,14 @@ else {
     exit 1
 }
 
-$WixPackage = Get-WixExtensionPackage
+$WixPackageVersion = Get-VS19ExtensionVersion -packageName "WixToolset.VisualStudioExtension.Dev16"
-
-if($WixPackage) {
-    Write-Host "Wix Extension version" $WixPackage.version "installed"
-}
-else {
-    Write-Host "Wix Extension is not installed"
-    exit 1
-}
 
 # Adding description of the software to Markdown
 $SoftwareName = "WIX Tools"
 
 $Description = @"
 _Toolset Version:_ $WixToolSetVersion<br/>
-_WIX Toolset Visual Studio Extension Version:_ $($WixPackage.version)<br/>
+_WIX Toolset Visual Studio Extension Version:_ $WixPackageVersion<br/>
 _Environment:_
 * WIX: Installation root of WIX
 "@