Functions/ConvertTo-WhiskeyTask.ps1
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function ConvertTo-WhiskeyTask { <# .SYNOPSIS Converts an object parsed from a whiskey.yml file into a task name and task parameters. .DESCRIPTION The `ConvertTo-WhiskeyTask` function takes an object parsed from a whiskey.yml file and converts it to a task name and hashtable of parameters and returns both in that order. .EXAMPLE $name,$parameter = ConvertTo-WhiskeyTask -InputObject $parsedTask #> [CmdletBinding()] param( [Parameter(Mandatory=$true)] [AllowNull()] [object] $InputObject ) Set-StrictMode -Version 'Latest' Use-CallerPreference -Cmdlet $PSCmdlet -SessionState $ExecutionContext.SessionState if( $InputObject -is [string] ) { $InputObject @{ } return } elseif( $InputObject -and ($InputObject | Get-Member -Name 'Keys') ) { $taskName = $InputObject.Keys | Select-Object -First 1 $parameter = $InputObject[$taskName] if( -not $parameter ) { $parameter = @{ } } elseif( -not ($parameter | Get-Member -Name 'Keys') ) { $parameter = @{ '' = $parameter } } $taskName $parameter return } # Convert back to YAML to display its invalidness to the user. $builder = New-Object 'YamlDotNet.Serialization.SerializerBuilder' $yamlWriter = New-Object "System.IO.StringWriter" $serializer = $builder.Build() $serializer.Serialize($yamlWriter, $InputObject) $yaml = $yamlWriter.ToString() $yaml = $yaml -split [regex]::Escape([Environment]::NewLine) | Where-Object { @( '...', '---' ) -notcontains $_ } | ForEach-Object { ' {0}' -f $_ } Write-Error -Message ('Invalid task YAML:{0} {0}{1}{0}A task must have a name followed by optional parameters, e.g. Build: - Task1 - Task2: Parameter1: Value1 Parameter2: Value2 ' -f [Environment]::NewLine,($yaml -join [Environment]::NewLine)) } |