public static string GetHelp(this CliExecutorDescriptor descriptor)
{
var margin = 20;
var maxLength = 20;
var sb = new StringBuilder();
var helpBuilder = new HelpBuilder();
sb.AppendLine(descriptor.Description);
if (descriptor.UsageSamples.Any())
{
sb.AppendLine();
sb.AppendLine("Usage samples:");
foreach (var usageSample in descriptor.UsageSamples)
{
sb.AppendLine(usageSample);
}
}
if (descriptor.Keys.Any())
{
sb.AppendLine();
sb.AppendLine("Keys:");
foreach (var key in descriptor.Keys)
{
sb.Append(string.Join(", ", key.Keys));
var docSubstitution = key.ValueDescriptor.DocSubstitution ?? $"{key.Alias}";
sb.Append($" <{docSubstitution}>");
helpBuilder.WriteHelp(sb, key.ValueDescriptor.Description, margin, maxLength);
}
}
if (descriptor.Arguments.Any())
{
sb.AppendLine();
sb.AppendLine("Arguments:");
foreach (var argument in descriptor.Arguments)
{
var docSubstitution = argument.DocSubstitution ?? $"{argument.Alias}";
sb.Append($"<{docSubstitution}>");
helpBuilder.WriteHelp(sb, argument.Description, margin, maxLength);
}
}
if (descriptor.Options.Any())
{
sb.AppendLine();
sb.AppendLine("Options:");
foreach (var option in descriptor.Options)
{
sb.Append(string.Join(", ", option.Options));
helpBuilder.WriteHelp(sb, option.Description, margin, maxLength);
}
}
return(sb.ToString());
}