Parcel

0.2.0

Classes/Providers/PSGalleryParcelProvider.ps1

class PSGalleryParcelProvider : ParcelProvider
{
    PSGalleryParcelProvider() : base('PowerShell Gallery', $false, 'PSGallery') {}

    [bool] TestProviderInstalled([hashtable]$_context)
    {
        if ((Get-Host).Version.Major -gt '5') {
            return $true
        }

        return ($null -ne (Get-PackageProvider -Name NuGet -ListAvailable -ErrorAction Ignore))
    }

    [scriptblock] GetProviderInstallScriptBlock([hashtable]$_context)
    {
        return {
            Install-PackageProvider -Name NuGet -MinimumVersion 2.8.5.201 -Force | Out-Null
        }
    }

    [string] GetPackageInstallScript([ParcelPackage]$_package, [hashtable]$_context)
    {
        return "Install-Module -Name $($_package.Name) -Force -AllowClobber -SkipPublisherCheck -ErrorAction Stop"
    }

    [string] GetPackageUninstallScript([ParcelPackage]$_package, [hashtable]$_context)
    {
        return "Uninstall-Module -Name $($_package.Name) -Force -AllVersions -ErrorAction Stop"
    }

    [string] GetProviderRemoveSourceScript([string]$_name)
    {
        return "Unregister-PSRepository -Name $($_name) -ErrorAction Ignore"
    }

    [string] GetProviderAddSourceScript([string]$_name, [string]$_url)
    {
        return "Register-PSRepository -Name $($_name) -SourceLocation $($_url) -PublishLocation $($_url) -ErrorAction Stop"
    }

    [bool] TestPackageInstalled([ParcelPackage]$_package)
    {
        $result = (Get-Module -Name $_package.Name -ListAvailable | Where-Object { $_.Version -ieq $_package.Version })
        return ($result.Length -gt 0)
    }

    [bool] TestPackageUninstalled([ParcelPackage]$_package)
    {
        $result = (Get-Module -Name $_package.Name -ListAvailable)
        return ($result.Length -eq 0)
    }

    [string] GetPackageLatestVersion([ParcelPackage]$_package)
    {
        return Invoke-Expression -Command "(Find-Module -Name $($_package.Name) $($this.GetSourceArgument($_package)) -ErrorAction Ignore).Version"
    }

    [string] GetVersionArgument([ParcelPackage]$_package)
    {
        return "-RequiredVersion $($_package.Version)"
    }

    [string] GetSourceArgument([ParcelPackage]$_package)
    {
        $_source = $_package.Source
        if ([string]::IsNullOrWhiteSpace($_source)) {
            $_source = @($this.DefaultSource)
        }

        if ([string]::IsNullOrWhiteSpace($_source[0])) {
            return [string]::Empty
        }

        return "-Repository $($_source[0])"
    }
}