private int?HandlePreviewDirective(CommandInput commandInput)
{
// Preview mode is enabled if it's allowed in the application and it was requested via corresponding directive
var isPreviewMode = _configuration.IsPreviewModeAllowed && commandInput.IsPreviewDirectiveSpecified();
// If not in preview mode, pass execution to the next handler
if (!isPreviewMode)
{
return(null);
}
// Render command name
_console.Output.WriteLine($"Command name: {commandInput.CommandName}");
_console.Output.WriteLine();
// Render directives
_console.Output.WriteLine("Directives:");
foreach (var directive in commandInput.Directives)
{
_console.Output.Write(" ");
_console.Output.WriteLine(directive);
}
// Margin
_console.Output.WriteLine();
// Render options
_console.Output.WriteLine("Options:");
foreach (var option in commandInput.Options)
{
_console.Output.Write(" ");
_console.Output.WriteLine(option);
}
// Short-circuit with exit code 0
return(0);
}