Add TemplateName parameter to Invoke-Plaster with argument completer

Plaster/Plaster.psm1

@@ -171,5 +171,25 @@ $MyInvocation.MyCommand.ScriptBlock.Module.OnRemove = {
     Remove-Variable -Name 'ParameterDefaultValueStoreRootPath' -Scope Script -ErrorAction SilentlyContinue
 }
 
+# Register argument completers
+Register-ArgumentCompleter -CommandName Invoke-Plaster -ParameterName TemplateName -ScriptBlock {
+    param($commandName, $parameterName, $wordToComplete, $commandAst, $fakeBoundParameters)
+
+    # Trim single, or double quotes from the start/end of the word to complete.
+    if ($wordToComplete -match '^[''"]') {
+        $wordToComplete = $wordToComplete.Trim($Matches.Values[0])
+    }
+
+    # Get all unique names starting with the characters provided, if any.
+    Get-PlasterTemplate -Name "$wordToComplete*" | Select-Object Name -Unique | ForEach-Object {
+        # Wrap the completion in single quotes if it contains any whitespace.
+        if ($_.Name -match '\s') {
+            "'{0}'" -f $_.Name
+        } else {
+            $_.Name
+        }
+    }
+}
+
 # Module initialization complete
 Write-PlasterLog -Level Information -Message "Plaster v$PlasterVersion module loaded successfully (PowerShell $($PSVersionTable.PSVersion))"

Plaster/Public/Invoke-Plaster.ps1

@@ -27,6 +27,11 @@ function Invoke-Plaster {
         [string]
         $TemplateDefinition,
 
+        [Parameter(Position = 0, Mandatory = $true, ParameterSetName = 'TemplateName')]
+        [ValidateNotNullOrEmpty()]
+        [string]
+        $TemplateName,
+
         [Parameter(Position = 1, Mandatory = $true)]
         [ValidateNotNullOrEmpty()]
         [string]
@@ -70,6 +75,10 @@ function Invoke-Plaster {
             EvaluateAttributeValue since we are only grabbing the parameter's
             value which is static.#>
 
+            if ($PSCmdlet.ParameterSetName -eq 'TemplateName') {
+                $TemplatePath = (Get-PlasterTemplate -Name $TemplateName).TemplatePath
+            }
+
             $templateAbsolutePath = $ExecutionContext.SessionState.Path.GetUnresolvedProviderPathFromPSPath($TemplatePath)
 
             # Load manifest file using culture lookup - try both JSON and XML formats
@@ -194,7 +203,10 @@ function Invoke-Plaster {
         #endregion Script Scope Variables
 
         # Determine template source and type
-        if ($PSCmdlet.ParameterSetName -eq 'TemplatePath') {
+        if ($PSCmdlet.ParameterSetName -eq 'TemplateName') {
+            $TemplatePath = (Get-PlasterTemplate -Name $TemplateName).TemplatePath
+        }
+        if ($PSCmdlet.ParameterSetName -in @('TemplatePath', 'TemplateName')) {
             $templateAbsolutePath = $PSCmdlet.GetUnresolvedProviderPathFromPSPath($TemplatePath)
             if (!(Test-Path -LiteralPath $templateAbsolutePath -PathType Container)) {
                 throw ($LocalizedData.ErrorTemplatePathIsInvalid_F1 -f $templateAbsolutePath)