winconfig/functions.ps1

function Update {

    Write-Host "Beginne mit dem Update aller Pakete..."
    winget upgrade --all
    remove-item  ~\Desktop* -include *.lnk
    if (Get-Module -ListAvailable -Name PSWindowsUpdate) {
        Write-Host "Installiere Windows Updates..."
        Install-WindowsUpdate -MicrosoftUpdate -AcceptAll -IgnoreReboot
        Write-Host "Update aller Powershell Module..."
        if ($SimulationMode) {
            Write-Host -ForegroundColor yellow 'Simulation mode is ON, nothing will be installed / removed / updated'
        }        
        Write-Host -ForegroundColor Cyan 'Get all PowerShell modules'        
        function Remove-OldPowerShellModules {
            param (
                [string]$ModuleName,
                [string]$GalleryVersion
            )
    
            try {
                $oldVersions = Get-InstalledModule -Name $ModuleName -AllVersions -ErrorAction Stop | Where-Object { $_.Version -ne $GalleryVersion }

                foreach ($oldVersion in $oldVersions) {
                    Write-Host -ForegroundColor Cyan "$ModuleName - Uninstall previous version ($($oldVersion.Version))"
                    if (-not($SimulationMode)) {
                        Remove-Module $ModuleName -ErrorAction SilentlyContinue
                        Uninstall-Module $oldVersion -Force  -ErrorAction Stop
                    }
                }
            }
            catch {
                Write-Warning "$module - $($_.Exception.Message)"
            }
        }

        if ($IncludedModules) {
            $modules = Get-InstalledModule | Where-Object { $IncludedModules -contains $_.Name }
        }
        else {
            $modules = Get-InstalledModule
        }

        foreach ($module in $modules.Name) {
            if ($ExcludedModules -contains $module) {
                Write-Host -ForegroundColor Yellow "Module $module is excluded from the update process"
                continue
            }
            elseif ($module -like "$excludedModules") {
                Write-Host -ForegroundColor Yellow "Module $module is excluded from the update process (match $excludeModules)"
                continue
            }

            $currentVersion = $null
    
            try {
                $currentVersion = (Get-InstalledModule -Name $module -AllVersions -ErrorAction Stop).Version
            }
            catch {
                Write-Warning "$module - $($_.Exception.Message)"
                continue
            }
    
            try {
                $moduleGalleryInfo = Find-Module -Name $module -ErrorAction Stop
            }
            catch {
                Write-Warning "$module not found in the PowerShell Gallery. $($_.Exception.Message)"
            }
    
            if ($null -eq $currentVersion) {
                Write-Host -ForegroundColor Cyan "$module - Install from PowerShellGallery version $($moduleGalleryInfo.Version) - Release date: $($moduleGalleryInfo.PublishedDate)"  
        
                if (-not($SimulationMode)) {
                    try {
                        Install-Module -Name $module -Force -SkipPublisherCheck -ErrorAction Stop
                    }
                    catch {
                        Write-Warning "$module - $($_.Exception.Message)"
                    }
                }
            }
            elseif ($moduleGalleryInfo.Version -eq $currentVersion) {
                Write-Host -ForegroundColor Green "$module already in latest version: $currentVersion - Release date: $($moduleGalleryInfo.PublishedDate)"
            }
            elseif ($currentVersion.count -gt 1) {
                Write-Host -ForegroundColor Yellow "$module is installed in $($currentVersion.count) versions (versions: $($currentVersion -join ' | '))"
                Write-Host -ForegroundColor Cyan "$module - Uninstall previous $module version(s) below the latest version ($($moduleGalleryInfo.Version))"
        
                Remove-OldPowerShellModules -ModuleName $module -GalleryVersion $moduleGalleryInfo.Version

                # Check again the current Version as we uninstalled some old versions
                $currentVersion = (Get-InstalledModule -Name $module).Version

                if ($moduleGalleryInfo.Version -ne $currentVersion) {
                    Write-Host -ForegroundColor Cyan "$module - Install from PowerShellGallery version $($moduleGalleryInfo.Version) - Release date: $($moduleGalleryInfo.PublishedDate)"  
                    if (-not($SimulationMode)) {
                        try {
                            Install-Module -Name $module -Force -ErrorAction Stop

                            Remove-OldPowerShellModules -ModuleName $module -GalleryVersion $moduleGalleryInfo.Version
                        }
                        catch {
                            Write-Warning "$module - $($_.Exception.Message)"
                        }
                    }
                }
            }
            # https://invoke-thebrain.com/2018/12/comparing-version-numbers-powershell/
            elseif ([version]$currentVersion -gt [version]$moduleGalleryInfo.Version) {   
                Write-Host -ForegroundColor Yellow "$module - the current version $currentVersion is newer than the version available on PowerShell Gallery $($moduleGalleryInfo.Version) (Release date: $($moduleGalleryInfo.PublishedDate)). Sometimes happens when you install a module from another repository or via .exe/.msi or if you change the version number manually."
            }
            elseif ([version]$currentVersion -lt [version]$moduleGalleryInfo.Version) {
                Write-Host -ForegroundColor Cyan "$module - Update from PowerShellGallery version " -NoNewline
                Write-Host -ForegroundColor White "$currentVersion -> $($moduleGalleryInfo.Version) " -NoNewline 
                Write-Host -ForegroundColor Cyan "- Release date: $($moduleGalleryInfo.PublishedDate)"
        
                if (-not($SimulationMode)) {
                    try {
                        Update-Module -Name $module -Force -ErrorAction Stop
                        Remove-OldPowerShellModules -ModuleName $module -GalleryVersion $moduleGalleryInfo.Version
                    }
                    catch {
                        if ($_.Exception.Message -match 'Authenticode') {
                            Write-Host -ForegroundColor Yellow "$module - The module certificate used by the creator is either changed since the last module install or the module sign status has changed." 
                
                            if ($SkipPublisherCheck.IsPresent) {
                                Write-Host -ForegroundColor Cyan "$module - SkipPublisherCheck Parameter is present, so install will run without Authenticode check"
                                Write-Host -ForegroundColor Cyan "$module - Install from PowerShellGallery version $($moduleGalleryInfo.Version) - Release date: $($moduleGalleryInfo.PublishedDate)"  
                                try {
                                    Install-Module -Name $module -Force -SkipPublisherCheck
                                }
                                catch {
                                    Write-Warning "$module - $($_.Exception.Message)"
                                }
                    
                                Remove-OldPowerShellModules -ModuleName $module -GalleryVersion $moduleGalleryInfo.Version
                            }
                            else {
                                Write-Warning "$module - If you want to update this module, run again with -SkipPublisherCheck switch, but please keep in mind the security risk"
                            }
                        }
                        else {
                            Write-Warning "$module - $($_.Exception.Message)"
                        }
                    }
                }
            }
        }
    }
}