Public/Save-VcRedist.ps1
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function Save-VcRedist { <# .EXTERNALHELP VcRedist-help.xml #> [Alias("Get-VcRedist")] [CmdletBinding(SupportsShouldProcess = $true, HelpURI = "https://vcredist.com/save-vcredist/")] [OutputType([System.Management.Automation.PSObject])] param ( [Parameter( Mandatory = $true, Position = 0, ValueFromPipeline, HelpMessage = "Pass a VcList object from Get-VcList.")] [ValidateNotNullOrEmpty()] [System.Management.Automation.PSObject] $VcList, [Parameter(Mandatory = $false, Position = 1)] [ValidateScript( { if (Test-Path -Path $_ -PathType "Container") { $true } else { throw "Cannot find path $_" } })] [System.String] $Path = (Resolve-Path -Path $PWD), [Parameter(Mandatory = $false)] [System.ObsoleteAttribute("This parameter should no longer be used. Invoke-WebRequest is used for all download operations.")] [System.Management.Automation.SwitchParameter] $ForceWebRequest, [Parameter(Mandatory = $false)] [System.ObsoleteAttribute("This parameter should no longer be used. Invoke-WebRequest is used for all download operations.")] [ValidateSet("Foreground", "High", "Normal", "Low")] [System.String] $Priority = "Foreground", [Parameter(Mandatory = $false, Position = 3)] [System.String] $Proxy, [Parameter(Mandatory = $false, Position = 4)] [System.Management.Automation.PSCredential] $ProxyCredential = [System.Management.Automation.PSCredential]::Empty, [Parameter(Mandatory = $false, Position = 5)] [ValidateNotNullOrEmpty()] [System.String] $UserAgent = [Microsoft.PowerShell.Commands.PSUserAgent]::Chrome, [Parameter(Mandatory = $false)] [System.Management.Automation.SwitchParameter] $ShowProgress ) begin { # Disable the Invoke-WebRequest progress bar for faster downloads if ($PSBoundParameters.ContainsKey("Verbose") -or ($PSBoundParameters.ContainsKey("ShowProgress"))) { $ProgressPreference = "Continue" } else { $ProgressPreference = "SilentlyContinue" } # Enable TLS 1.2 [System.Net.ServicePointManager]::SecurityProtocol = [System.Net.ServicePointManager]::SecurityProtocol -bor 3072 } process { foreach ($VcRedist in $VcList) { # Loop through each Redistributable and download to the target path # Build the path to save the VcRedist into; Create the folder to store the downloaded file. Skip if it exists $TargetDirectory = [System.IO.Path]::Combine((Resolve-Path -Path $Path), $VcRedist.Release, $VcRedist.Version, $VcRedist.Architecture) Write-Verbose -Message "Test directory: $TargetDirectory." if (Test-Path -Path $TargetDirectory) { Write-Verbose -Message "Directory exists: $TargetDirectory. Skipping." } else { if ($PSCmdlet.ShouldProcess($TargetDirectory, "Create")) { $params = @{ Path = $TargetDirectory Type = "Directory" Force = $true ErrorAction = "Continue" } New-Item @params > $null } } # Test whether the VcRedist is already on disk $TargetVcRedist = Join-Path -Path $TargetDirectory -ChildPath $(Split-Path -Path $VcRedist.URI -Leaf) Write-Verbose -Message "Testing for downloaded VcRedist: $($TargetVcRedist)" if (Test-Path -Path $TargetVcRedist -PathType "Leaf") { $ProductVersion = $(Get-Item -Path $TargetVcRedist).VersionInfo.ProductVersion # If the target Redistributable is already downloaded, compare the version if (([System.Version]$VcRedist.Version -gt [System.Version]$ProductVersion) -or ($null -eq [System.Version]$ProductVersion)) { # Download the newer version Write-Verbose -Message "Manifest version: '$($VcRedist.Version)' > file version: '$ProductVersion'." $download = $true } else { Write-Verbose -Message "Manifest version: '$($VcRedist.Version)' matches file version: '$ProductVersion'." $download = $false } } else { $download = $true } # The VcRedist needs to be downloaded if ($download -eq $true) { if ($PSCmdlet.ShouldProcess($VcRedist.URI, "Invoke-WebRequest")) { try { # Download the file Write-Verbose -Message "Download VcRedist: $($VcRedist.Release), $($VcRedist.Architecture), $($VcRedist.Version)" $iwrParams = @{ Uri = $VcRedist.URI OutFile = $TargetVcRedist UseBasicParsing = $true UserAgent = $UserAgent ErrorAction = "SilentlyContinue" } if ($PSBoundParameters.ContainsKey("Proxy")) { $iwrParams.Proxy = $Proxy } if ($PSBoundParameters.ContainsKey("ProxyCredential")) { $iwrParams.ProxyCredential = $ProxyCredential } Invoke-WebRequest @iwrParams $Downloaded = $true } catch [System.Exception] { $Downloaded = $false throw $_ } # Return the $VcList array on the pipeline so that we can act on what was downloaded # Add the Path property pointing to the downloaded file if ($Downloaded) { $VcRedist | Add-Member -MemberType "NoteProperty" -Name "Path" -Value $TargetVcRedist Write-Output -InputObject $VcRedist } } } else { # Return the $VcList array on the pipeline so that we can act on what was downloaded # Add the Path property pointing to the downloaded file Write-Verbose -Message "VcRedist exists: $TargetVcRedist." $VcRedist | Add-Member -MemberType "NoteProperty" -Name "Path" -Value $TargetVcRedist Write-Output -InputObject $VcRedist } } } end { } } |