AssemblyInfoVersioning

$VersionRegex = "\d+\.\d+\.\d+\.\d+"
$Files = Get-ChildItem $Env:BUILD_SOURCESDIRECTORY -recurse -include "*Properties*" | 
    ?{ $_.PSIsContainer } | 
    ForEach { Get-ChildItem -Path $_.FullName -Recurse -include AssemblyInfo.* }
If($Files){
    "Will apply $env:Version to $($Files.count) files."
    ForEach ($File in $Files) {
        $Filecontent = Get-Content($File)
        attrib $File -r
        $Filecontent -replace $VersionRegex, $env:Version | Out-File $File
        "$File - version applied"
    }
}
Else{
    Write-Warning "Found no files."
}