Get-WTVersion.ps1

# Returns a string with the version of the installed Windows Terminal.
# Using `winget list` since the `wt --version` uses a dialog box.
#
# Usage:
#   Get-WTVersion [-IncludeBuildNoAs LOCATION]
#
# Options:
#   -IncludeBuildNo LOCATION:   This option includes the build number at the
#                               specified LOCATION. Alias: -b LOCATION
#                               if 'none' returns the default "major.minor.patch"
#                               if 'inline' returns "major.minor.buildno.patch"
#                               if 'explicit' return "major.minor.patch build buildno"
# gist: https://gist.github.com/algonzalez/650e9b647c3cbf04cea2887aae913827
function Get-WTVersion {
    param(
        [ValidateSet('none', 'inline', 'explicit', ErrorMessage="The location '{0}' is invalid. Try using {1}")]
        [Alias('b')]
        [string] $IncludeBuildNoAs = 'none'
    )

    $ver = ''
    if ($env:WT_SESSION.Length -gt 0) {
        $winget_results = winget list --id Microsoft.WindowsTerminal --exact
        if ($winget_results.Length -gt 0) {
            $groups = $($winget_results | Select-String -Pattern '(\d+\.\d+)\.(\d+)(\.\d+)').Matches.Groups
            if ($groups.Count -gt 3) {
                $ver = switch ($IncludeBuildNoAs.ToLower()) {
                    'inline' { "$($groups[1].Value).$($groups[2].Value)$($groups[3].Value)" }
                    'explicit' { "$($groups[1].Value)$($groups[3].Value) build $($groups[2].Value)" }
                    Default { "$($groups[1].Value)$($groups[3].Value)" }
                }
            }
        }
    }
    $ver
}