DevOps | Automated upgrade for old configuration to new format. For upgrading the project's, see: https://gist.github.com/meehanman/7947b9076845c6c2dd606eb258bfbcec

ConfigurationUpdater.ps1

function Transform-Config {

    Param ([string]$application)

    $SaveFolderLoc = "%system.teamcity.build.workingDir%\Configuration"

    $folders = Get-ChildItem -Path "%system.teamcity.build.workingDir%\Dev4.0\Configuration\*" | ?{ $_.PSIsContainer }

    New-Item -Path $SaveFolderLoc -Name "$($application)" -ItemType "directory"

    foreach ($folder in $folders)
    {
        $configs = Get-ChildItem -Path "%system.teamcity.build.workingDir%\Dev4.0\Configuration\$($folder.Name)\$($application)" -Recurse -Force

        foreach($configFile in $configs)
        {
            #Write-Output "$($configFile.FullName) $($folder.name)"

            #Advice.Web.Config
            $currentFile = $($configFile.FullName)
            #[Advice, Web, Config]
            $currentFileSplit = $($configFile.Name).Split(".")

            #Advice.Web
            $currentFileName = "$($($currentFileSplit)[0..($($currentFileSplit).Count-2)] -join ".")"
            #Config
            $currentFileExt = "$($currentFileSplit[$($currentFileSplit).Length-1])"
            #DevOnline
            $environment = "$($folder.name)"

            $newFileLocation = "$($SaveFolderLoc)\$($application)\$($currentFileName).$($environment).$($currentFileExt)"

            Copy-Item $currentFile $newFileLocation -Recurse -Force
        }
    }

}

#Create an Empty List
$applications = @()

#Get all the folders(applications) from Configuration subfolders
$folders = Get-ChildItem -Path "%system.teamcity.build.workingDir%\Dev4.0\Configuration\*\*" | ?{ $_.PSIsContainer }

#Add each foldername to the applications array and ensure there are no duplicates
foreach ($application in $folders)
{
      $applications += $application.name
}

$applications = $applications  | sort -unique

#Process
foreach ($application in $applications)
{
    Transform-Config -application $application
}