private/Find-ChocoPackage.ps1
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function Find-ChocoPackage { param ( [Parameter()] [PackageRequest] $Request = $Request ) [array]$RegisteredPackageSources = Foil\Get-ChocoSource $selectedSource = $( if ($Request.Source) { # Finding the matched package sources from the registered ones if ($RegisteredPackageSources.Name -eq $Request.Source) { # Found the matched registered source $Request.Source } else { ThrowError -ExceptionName 'System.ArgumentException' ` -ExceptionMessage ($LocalizedData.PackageSourceNotFound -f ($Request.Source)) ` -ErrorId 'PackageSourceNotFound' ` -ErrorCategory InvalidArgument ` -ExceptionObject $Request.Source } } else { # User did not specify a source. Now what? if ($RegisteredPackageSources.Count -eq 1) { # If no source name is specified and only one source is available, use that source $RegisteredPackageSources[0].Name } elseif ($RegisteredPackageSources.Name -eq $DefaultPackageSource) { # If multiple sources are avaiable but none specified, use the default package source if present $DefaultPackageSource } else { # If the default assumed source is not present and no source specified, we can't guess what the user wants - throw an exception ThrowError -ExceptionName 'System.ArgumentException' ` -ExceptionMessage $LocalizedData.UnspecifiedSource ` -ErrorId 'UnspecifiedSource' ` -ErrorCategory InvalidArgument } } ) $chocoParams = @{ Name = $Request.Name Source = $selectedSource } if (-Not [WildcardPattern]::ContainsWildcardCharacters($Request.Name)) { # Limit NuGet result set to just the specific package name unless it contains a wildcard $chocoParams.Add('Exact',$true) } # Choco does not support searching by min or max version, so if a user is picky we'll need to pull back all versions and filter ourselves if ($Request.Version) { $chocoParams.Add('AllVersions',$true) } # Filter results by any name and version requirements # We apply additional package name filtering when using wildcards to make Chocolatey's wildcard behavior more PowerShell-esque # The final results must be grouped by package name, showing the highest available version for install, to make the results easier to consume # Choco does not include source information in it's result set, so we need to include it in the results as a calculated property Foil\Get-ChocoPackage @chocoParams | Where-Object {$Request.IsMatch($_.Name)} | Where-Object {-Not $Request.Version -Or (([NuGet.Versioning.VersionRange]$Request.Version).Satisfies($_.Version))} | Group-Object Name | Select-Object Name,@{ Name = 'Version' Expression = {$_.Group | Sort-Object -Descending Version | Select-Object -First 1 -ExpandProperty Version} },@{ Name = 'Source' Expression = {$selectedSource} } } |