/// <summary>
/// => Console.LogLine()
/// </summary>
/// <param name="c">Color</param>
/// <param name="line">Line</param>
protected static int Log(Color c, string line)
{
CLI.LogLine(c, line);
return(0);
}
/// <summary>
/// => Console.LogLine()
/// </summary>
/// <param name="line">Line</param>
protected static int Log(string line)
{
CLI.LogLine(Color.LightGray, line);
return(0);
}
/// <summary>
/// Parses the specified command line arguments into the specified class.
/// </summary>
/// <typeparam name="T">Class where the command line arguments are stored.</typeparam>
/// <param name="configuration">Class which stores the command line arguments.</param>
/// <param name="args">Command line arguments.</param>
/// <returns>Array of unresolved arguments.</returns>
public static string[] ParseArguments<T>(T configuration, params string[] args) {
const BindingFlags flags = BindingFlags.Public | BindingFlags.Instance;
List<KeyValuePair<PropertyInfo, ArgumentAttribute>> properties =
WithAttribute<PropertyInfo, ArgumentAttribute>(typeof (T).GetProperties(flags)).ToList();
var unresolvedArguments = new List<string>();
foreach (var arg in args) {
// Parse the argument.
Match match = ArgumentRegex.Match(arg);
if (!match.Success) // This is not a typed argument.
{
unresolvedArguments.Add(arg);
continue;
}
// Extract the argument details.
bool isShortname = !arg.StartsWith("--");
string name = match.Groups[1].ToString();
string value = match.Groups[2].Length > 0 ? match.Groups[2].ToString().Substring(1) : null;
// Find the argument.
const StringComparison ignoreCase = StringComparison.InvariantCultureIgnoreCase;
PropertyInfo property =
(from kv in properties
where name.Equals(isShortname ? kv.Value.ShortName : kv.Value.Name, ignoreCase)
select kv.Key).SingleOrDefault();
// Check if this is a special argument we should handle.
if (name == "help") {
foreach (var line in GenerateCommandLineHelp(configuration)) {
CLI.LogLine(Color.White, line);
}
}
else if (property == null) {
CLI.LogLine(Color.Red, "Unknown argument: " + (isShortname ? "-" : "--") + name);
continue;
}
// Change the property.
object convertedValue = null;
if (value == null) {
if (property == null || property.PropertyType == typeof (bool)) {
convertedValue = true;
}
}
else {
Type type = property.PropertyType;
if (type.IsGenericType && type.GetGenericTypeDefinition() == typeof (Nullable<>))
type = type.GetGenericArguments().First();
convertedValue = Convert.ChangeType(value, type);
}
if (convertedValue == null) {
CLI.LogLine(Color.Red,
string.Format(
"Argument '{0}' requires a value of the type '{1}'.", name, property.PropertyType.Name));
continue;
}
if (property != null)
property.SetValue(configuration, convertedValue, null);
}
return unresolvedArguments.ToArray();
}
