protected virtual void AddAdditionalArguments(ICommand command)
{
if (command.TreatUnmatchedTokensAsErrors)
{
return;
}
HelpSection.Write(this, AdditionalArguments.Title, AdditionalArguments.Description);
}
/// <summary>
/// Writes the usage summary for the supplied <see cref="command"/>
/// </summary>
/// <param name="command"></param>
protected virtual void AddUsage(ICommand command)
{
var usage = new List <string>();
IEnumerable <ICommand> subcommands;
if (command is Command cmd)
{
subcommands = cmd
.RecurseWhileNotNull(c => c.Parents
.OfType <Command>()
.FirstOrDefault())
.Reverse();
}
else
{
subcommands = Enumerable.Empty <ICommand>();
}
foreach (var subcommand in subcommands)
{
usage.Add(subcommand.Name);
if (subcommand != command)
{
usage.Add(FormatArgumentUsage(subcommand.Arguments.ToArray()));
}
}
var hasOptionHelp = command.Children
.OfType <IOption>()
.Any(ShouldShowHelp);
if (hasOptionHelp)
{
usage.Add(Usage.Options);
}
usage.Add(FormatArgumentUsage(command.Arguments.ToArray()));
var hasCommandHelp = command.Children
.OfType <ICommand>()
.Any(ShouldShowHelp);
if (hasCommandHelp)
{
usage.Add(Usage.Command);
}
if (!command.TreatUnmatchedTokensAsErrors)
{
usage.Add(Usage.AdditionalArguments);
}
HelpSection.Write(this, Usage.Title, string.Join(" ", usage.Where(u => !string.IsNullOrWhiteSpace(u))));
}
/// <summary>
/// Writes the help content of the <see cref="Command"/> subcommands, if any,
/// for the supplied <see cref="command"/>
/// </summary>
/// <param name="command"></param>
protected virtual void AddSubcommands(ICommand command)
{
var subcommands = command
.Children
.OfType <ICommand>()
.Where(ShouldShowHelp)
.ToArray();
HelpSection.Write(this, Commands.Title, subcommands, GetOptionHelpItems);
}
/// <summary>
/// Writes the <see cref="Option"/> help content, if any,
/// for the supplied <see cref="command"/>
/// </summary>
/// <param name="command"></param>
protected virtual void AddOptions(ICommand command)
{
var options = command
.Children
.OfType <IOption>()
.Where(ShouldShowHelp)
.ToArray();
HelpSection.Write(this, Options.Title, options, GetOptionHelpItems);
}
/// <summary>
/// Writes a summary, if configured, for the supplied <see cref="command"/>
/// </summary>
/// <param name="command"></param>
protected virtual void AddSynopsis(ICommand command)
{
if (!ShouldShowHelp(command))
{
return;
}
var title = $"{command.Name}:";
HelpSection.Write(this, title, command.Description);
}
/// <summary>
/// Writes the arguments, if any, for the supplied <see cref="command"/>
/// </summary>
/// <param name="command"></param>
protected virtual void AddArguments(ICommand command)
{
var commands = new List <ICommand>();
if (command is Command cmd &&
cmd.Parents.FirstOrDefault() is ICommand parent &&
ShouldDisplayArgumentHelp(parent))
{
commands.Add(parent);
}
if (ShouldDisplayArgumentHelp(command))
{
commands.Add(command);
}
HelpSection.Write(this, Arguments.Title, commands, GetArgumentHelpItems);
}
