Add current commit into logs for custom builds (#1419)

* Show latest commit for custom repos

* Remove unused variables from templates

* Add Get-LatestCommit function

* Fix in synopsis

* Remove SSH_Password variables from Windows Images

* Rename download-customrepo

* Fix in synopsis

helpers/GenerateResourcesAndImage.ps1

@@ -39,6 +39,16 @@ Function Get-PackerTemplatePath {
     return $RepositoryRoot + $relativePath;
 }
 
+Function Get-LatestCommit {
+    [CmdletBinding()]
+    param()
+
+    process {
+        Write-Host "Latest commit:"
+        git log --pretty=format:"Date: %cd; Commit: %H - %s; Author: %an <%ae>" -1
+    }
+}
+
 Function GenerateResourcesAndImage {
     <#
         .SYNOPSIS
@@ -170,6 +180,8 @@ Function GenerateResourcesAndImage {
     $tenantId = $sub.TenantId
     # "", "Note this variable-setting script for running Packer with these Azure resources in the future:", "==============================================================================================", "`$spClientId = `"$spClientId`"", "`$ServicePrincipalClientSecret = `"$ServicePrincipalClientSecret`"", "`$SubscriptionId = `"$SubscriptionId`"", "`$tenantId = `"$tenantId`"", "`$spObjectId = `"$spObjectId`"", "`$AzureLocation = `"$AzureLocation`"", "`$ResourceGroupName = `"$ResourceGroupName`"", "`$storageAccountName = `"$storageAccountName`"", "`$install_password = `"$install_password`"", ""
 
+    Get-LatestCommit -ErrorAction SilentlyContinue
+
     packer.exe build -on-error=ask `
         -var "client_id=$($spClientId)" `
         -var "client_secret=$($ServicePrincipalClientSecret)" `