public void ViewHelpForCommand(string commandName)
{
ICommand command = _commandManager.GetCommand(commandName);
CommandAttribute attribute = command.CommandAttribute;
Console.WriteLine("usage: {0} {1} {2}", _commandExe, attribute.CommandName, attribute.UsageSummary);
Console.WriteLine();
if (!String.IsNullOrEmpty(attribute.AltName))
{
Console.WriteLine("alias: {0}", attribute.AltName);
Console.WriteLine();
}
Console.WriteLine(attribute.Description);
Console.WriteLine();
if (attribute.UsageDescription != null)
{
const int padding = 5;
Console.PrintJustified(padding, attribute.UsageDescription);
Console.WriteLine();
}
var options = _commandManager.GetCommandOptions(command);
if (options.Count > 0)
{
Console.WriteLine("options:");
Console.WriteLine();
// Get the max option width. +2 for showing + against multivalued properties
int maxOptionWidth = options.Max(o => o.Value.Name.Length) + 2;
// Get the max altname option width
int maxAltOptionWidth = options.Max(o => (o.Key.AltName ?? String.Empty).Length);
foreach (var o in options)
{
Console.Write(" -{0, -" + (maxOptionWidth + 2) + "}", o.Value.Name +
(TypeHelper.IsMultiValuedProperty(o.Value) ? " +" : String.Empty));
Console.Write(" {0, -" + (maxAltOptionWidth + 4) + "}", GetAltText(o.Key.AltName));
Console.PrintJustified((10 + maxAltOptionWidth + maxOptionWidth), o.Key.Description);
}
Console.WriteLine();
}
if (!string.IsNullOrEmpty(attribute.UsageExample))
{
Console.WriteLine("examples:");
Console.WriteLine();
Console.WriteLine(attribute.UsageExample);
Console.WriteLine();
}
Console.WriteLine(string.Format(CultureInfo.InvariantCulture,
LocalizedResourceManager.GetString("HelpCommandForMoreInfo"),
CommandLineConstants.NuGetDocsCommandLineReference));
Console.WriteLine();
}
private void PrintCommand(int maxWidth, CommandAttribute commandAttribute)
{
// Write out the command name left justified with the max command's width's padding
Console.Write(" {0, -" + maxWidth + "} ", GetCommandText(commandAttribute));
// Starting index of the description
int descriptionPadding = maxWidth + 4;
Console.PrintJustified(descriptionPadding, commandAttribute.Description);
}
private static string GetCommandText(CommandAttribute commandAttribute)
{
return(commandAttribute.CommandName + GetAltText(commandAttribute.AltName));
}
private static string GetCommandText(CommandAttribute commandAttribute)
{
return commandAttribute.CommandName + GetAltText(commandAttribute.AltName);
}
