Compare-PbirsVersions.ps1

<#
.Synopsis
   This script checks a local Power BI Report Server instance against the version
   currently available for download and reports if the two versions are no the same.

.Notes
   Author:   Darren Gosbell
   Date:     8 April 2019

.Example

   .\Compare-PbirsVersions.ps1  https://myserver/reportserver
      
#>

param([string] $localServer = "http://localhost/reportserver" )

$download = "http://aka.ms/pbireportserver"

$serverhtml = Invoke-WebRequest -Uri $localServer -UseBasicParsing -UseDefaultCredentials
$serverhtml.Content -match "Microsoft Power BI Report Server Version (\d*\.\d*\.\d*\.\d*)" > $NULL
$localVersion = $Matches[1]

$downloadhtml = Invoke-WebRequest -Uri $download -UseBasicParsing
$downloadhtml.Content -match "<p>(\d*\.\d*\.\d*\.\d*)</p>" > $null
$downloadVersion = $Matches[1]

if ($localVersion -eq $downloadVersion) {Write-Host -ForegroundColor Green "Running the lastest version of PBIRS - $localVersion"}
else {Write-Host -ForegroundColor Yellow "local version of PBIRS - $localVersion 
does not match download version - $downloadVersion"}