functions/Test-WTVersion.ps1
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Function Test-WTVersion { [CmdletBinding()] [OutputType([boolean])] Param() Write-Verbose "[$((Get-Date).TimeofDay)] Starting $($myinvocation.MyCommand)" Write-Verbose "[$((Get-Date).TimeofDay)] Get the currently installed application" #only check if not running the Preview build if (Test-IsWTPreview) { Write-Host "You are running the Windows Terminal Preview" -ForegroundColor Yellow $pkg = GetWTPackage -preview } else { $pkg = GetWTPackage } If ($pkg) { $pkg | Out-String | Write-Verbose #get the version number [version]$current = $pkg.Version Write-Verbose "[$((Get-Date).TimeofDay)] Found version $current" #check for previous version file $verFile = Join-Path -path $home -ChildPath wtver.json Write-Verbose "[$((Get-Date).TimeofDay)] Testing for version tracking file $verFile" if (Test-Path -path $verfile) { Write-Verbose "[$((Get-Date).TimeofDay)] Comparing versions" $in = Get-Content -Path $verFile | ConvertFrom-Json $previous = $in.VersionString -as [version] Write-Verbose "[$((Get-Date).TimeofDay)] Comparing stored version $previous with current version $current" If ($current -gt $previous) { Write-Verbose "[$((Get-Date).TimeofDay)] A newer version of Windows Terminal has been detected." $True } else { Write-Verbose "[$((Get-Date).TimeofDay)] Windows Terminal is up to date." $False } } #create the json file, adding the version as a string which makes it easier to reconstruct Write-Verbose "[$((Get-Date).TimeofDay)] Writing current information to $verFile." $current | Select-Object *, @{Name = "VersionString"; Expression = {$_.tostring()}}, @{Name = "Date"; Expression = {(Get-Date).DateTime}} | ConvertTo-Json | Out-File -FilePath $verfile -Encoding ascii -Force } # if package found else { Throw "Windows Terminal is not installed." } Write-Verbose "[$((Get-Date).TimeofDay)] Ending $($myinvocation.MyCommand)" } #close function Function Test-IsWTPreview { [cmdletbinding()] [outputtype([Boolean])] Param() Write-Verbose "[$((Get-Date).TimeofDay)] Starting $($myinvocation.MyCommand)" Write-Verbose "[$((Get-Date).TimeofDay)] Getting process id $pid" #get current process $current = Get-CimInstance win32_process -Filter "processid=$pid" #get WindowsTerminal parent Write-Verbose "[$((Get-Date).TimeofDay)] Getting parent process id $($current.parentprocessid)" $parent = Get-CimInstance win32_process -Filter "processid=$($current.parentprocessid)" #test if path matches the preview executable Write-Verbose "[$((Get-Date).TimeofDay)] Testing path $($parent.ExecutablePath)" $parent.ExecutablePath -match "WindowsTerminalPreview" Write-Verbose "[$((Get-Date).TimeofDay)] Ending $($myinvocation.MyCommand)" } |