Public/Get-EvergreenApp.ps1
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Function Get-EvergreenApp { <# .EXTERNALHELP Evergreen-help.xml #> [OutputType([System.Management.Automation.PSObject])] [CmdletBinding(SupportsShouldProcess = $False, HelpURI = "https://stealthpuppy.com/evergreen/use/")] [Alias("gea")] param ( [Parameter( Mandatory = $True, Position = 0, ValueFromPipeline, ValueFromPipelineByPropertyName, HelpMessage = "Specify an application name. Use Find-EvergreenApp to list supported applications.")] [ValidateNotNull()] [System.String] $Name, [Parameter( Mandatory = $False, Position = 1, HelpMessage = "Specify a hashtable of parameters to pass to the internal application function.")] [System.Collections.Hashtable] $AppParams ) process { try { # Build a path to the application function # This will build a path like: Evergreen/Apps/Get-TeamViewer.ps1 $Function = [System.IO.Path]::Combine($MyInvocation.MyCommand.Module.ModuleBase, "Apps", "Get-$Name.ps1") Write-Verbose -Message "Function path: $Function" } catch { throw "Failed to combine: $($MyInvocation.MyCommand.Module.ModuleBase), Apps, Get-$Name.ps1" } #region Test that the function exists and run it to return output if (Test-Path -Path $Function -PathType "Leaf" -ErrorAction "SilentlyContinue") { Write-Verbose -Message "Function exists: $Function." try { # Dot source the function so that we can use it # Import function here rather than at module import to reduce IO and memory footprint as the module grows # This also allows us to add an application manifest and function without having to re-load the module Write-Verbose -Message "Dot sourcing: $Function." . $Function } catch { throw "Failed to load function: $Function." } try { # Run the function to grab the application details; pass the per-app manifest to the app function # Application manifests are located under Evergreen/Manifests if ($PSBoundParameters.ContainsKey("AppParams")) { Write-Verbose -Message "Adding AppParams." $params = @{ res = (Get-FunctionResource -AppName $Name) } $params += $AppParams } else { $params = @{ res = (Get-FunctionResource -AppName $Name) } } Write-Verbose -Message "Calling: Get-$Name." $Output = & Get-$Name @params } catch { Write-Error -Message "Internal application function: $Function, failed with: $($_.Exception.Message)" } # if we get an object, return it to the pipeline # Sort object on the Version property if ($Output) { Write-Verbose -Message "Output result from: $Function." Write-Output -InputObject ($Output | Sort-Object -Property @{ Expression = { [System.Version]$_.Version }; Descending = $true } -ErrorAction "SilentlyContinue") } else { throw "Failed to capture output from: Get-$Name." } } else { Write-Information -MessageData "" -InformationAction "Continue" Write-Information -MessageData "Please list supported application names with Find-EvergreenApp." -InformationAction "Continue" Write-Information -MessageData "Find out how to contribute a new application to the Evergreen project here: $($script:resourceStrings.Uri.Docs)." -InformationAction "Continue" $List = Find-EvergreenApp -Name $Name -ErrorAction "SilentlyContinue" -WarningAction "SilentlyContinue" if ($Null -ne $List) { Write-Information -MessageData "" -InformationAction "Continue" Write-Information -MessageData "'$Name' not found. Evergreen supports these similar applications:" -InformationAction "Continue" $List | Select-Object -ExpandProperty "Name" | Write-Information -InformationAction "Continue" Write-Information -MessageData "" -InformationAction "Continue" } throw "'$Name' is not a supported application." } #endregion } end { # Remove these variables for next run Remove-Variable -Name "Output", "Function" -ErrorAction "SilentlyContinue" } } |