Tasks/Import-WhiskeyTask.ps1
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function Import-WhiskeyTask { [Whiskey.Task("LoadTask")] [CmdletBinding()] param( [Parameter(Mandatory=$true)] [Whiskey.Context] $TaskContext, [Parameter(Mandatory=$true)] [hashtable] $TaskParameter ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState $module = Get-Module -Name 'Whiskey' $paths = Resolve-WhiskeyTaskPath -TaskContext $TaskContext -Path $TaskParameter['Path'] -PropertyName 'Path' foreach( $path in $paths ) { if( $TaskContext.TaskPaths | Where-Object { $_.FullName -eq $path } ) { Write-WhiskeyVerbose -Context $TaskContext -Message ('Already loaded tasks from file "{0}".' -f $path) -Verbose continue } $knownTasks = @{} Get-WhiskeyTask | ForEach-Object { $knownTasks[$_.Name] = $_ } # We do this in a background script block to ensure the function is scoped correctly. If it isn't, it # won't be available outside the script block. If it is, it will be visible after the script block completes. & { . $path } $newTasks = Get-WhiskeyTask | Where-Object { -not $knownTasks.ContainsKey($_.Name) } if( -not $newTasks ) { Stop-WhiskeyTask -TaskContext $TaskContext -Message ('File "{0}" contains no Whiskey tasks. Make sure: * the file contains a function * the function is scoped correctly (e.g. `function script:MyTask`) * the function has a `[Whiskey.Task("MyTask")]` attribute that declares the task''s name * a task with the same name hasn''t already been loaded See about_Whiskey_Writing_Tasks for more information.' -f $path) return } Write-WhiskeyInfo -Context $TaskContext -Message ($path) foreach( $task in $newTasks ) { Write-WhiskeyInfo -Context $TaskContext -Message $task.Name -Indent 1 } $TaskContext.TaskPaths.Add((Get-Item -Path $path)) } } |