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<#
.SYNOPSIS
Checks whether a given .NET Core runtime is installed.
#>
[CmdletBinding()]
Param (
[Parameter()]
[ValidateSet('Microsoft.AspNetCore.App','Microsoft.NETCore.App')]
[string]$Runtime='Microsoft.NETCore.App',
[Parameter(Mandatory=$true)]
[Version]$Version
)
$dotnet = Get-Command dotnet -ErrorAction SilentlyContinue
if (!$dotnet) {
# Nothing is installed.
Write-Output $false
exit 1
}
Function IsVersionMatch {
Param(
[Parameter()]
$actualVersion
)
return $actualVersion -and
$Version.Major -eq $actualVersion.Major -and
$Version.Minor -eq $actualVersion.Minor -and
(($Version.Build -eq -1) -or ($Version.Build -eq $actualVersion.Build)) -and
(($Version.Revision -eq -1) -or ($Version.Revision -eq $actualVersion.Revision))
}
$installedRuntimes = dotnet --list-runtimes |? { $_.Split()[0] -ieq $Runtime } |% { $v = $null; [Version]::tryparse($_.Split()[1], [ref] $v); $v }
$matchingRuntimes = $installedRuntimes |? { IsVersionMatch -actualVersion $_ }
if (!$matchingRuntimes) {
Write-Output $false
exit 1
}
Write-Output $true
exit 0
|
