private static IEnumerable <IRenderable> GetExamples(CommandModel model, CommandInfo?command)
{
var maxExamples = int.MaxValue;
var examples = command?.Examples ?? model.Examples ?? new List <string[]>();
if (examples.Count == 0)
{
// Since we're not checking direct examples,
// make sure that we limit the number of examples.
maxExamples = 5;
// Get the current root command.
var root = command ?? (ICommandContainer)model;
var queue = new Queue <ICommandContainer>(new[] { root });
// Traverse the command tree and look for examples.
// As soon as a node contains commands, bail.
while (queue.Count > 0)
{
var current = queue.Dequeue();
foreach (var cmd in current.Commands)
{
if (cmd.Examples.Count > 0)
{
examples.AddRange(cmd.Examples);
}
queue.Enqueue(cmd);
}
if (examples.Count >= maxExamples)
{
break;
}
}
}
if (examples.Count > 0)
{
var composer = new Composer();
composer.Style("yellow", "EXAMPLES:").LineBreak();
for (var index = 0; index < Math.Min(maxExamples, examples.Count); index++)
{
var args = string.Join(" ", examples[index]);
composer.Tab().Text(model.GetApplicationName()).Space().Style("grey", args);
composer.LineBreak();
}
composer.LineBreak();
return(new[] { composer });
}
return(Array.Empty <IRenderable>());
}
private static IEnumerable <IRenderable> GetUsage(CommandModel model, CommandInfo?command)
{
var composer = new Composer();
composer.Style("yellow", "USAGE:").LineBreak();
composer.Tab().Text(model.GetApplicationName());
var parameters = new List <string>();
if (command == null)
{
parameters.Add("[grey][[OPTIONS]][/]");
parameters.Add("[aqua]<COMMAND>[/]");
}
else
{
foreach (var current in command.Flatten())
{
var isCurrent = current == command;
if (!current.IsDefaultCommand)
{
if (isCurrent)
{
parameters.Add($"[underline]{current.Name.EscapeMarkup()}[/]");
}
else
{
parameters.Add($"{current.Name.EscapeMarkup()}");
}
}
if (current.Parameters.OfType <CommandArgument>().Any())
{
if (isCurrent)
{
foreach (var argument in current.Parameters.OfType <CommandArgument>()
.Where(a => a.Required).OrderBy(a => a.Position).ToArray())
{
parameters.Add($"[aqua]<{argument.Value.EscapeMarkup()}>[/]");
}
}
var optionalArguments = current.Parameters.OfType <CommandArgument>().Where(x => !x.Required).ToArray();
if (optionalArguments.Length > 0 || !isCurrent)
{
foreach (var optionalArgument in optionalArguments)
{
parameters.Add($"[silver][[{optionalArgument.Value.EscapeMarkup()}]][/]");
}
}
}
if (isCurrent)
{
parameters.Add("[grey][[OPTIONS]][/]");
}
}
if (command.IsBranch)
{
parameters.Add("[aqua]<COMMAND>[/]");
}
}
composer.Join(" ", parameters);
composer.LineBreaks(2);
return(new[]
{
composer,
});
}