internal CommandOption Configure(CommandLineApplication app)
{
var opt = app.VersionOption(Template, Version);
Configure(opt);
return(opt);
}
internal CommandOption Configure(CommandLineApplication app, Type type, Func <object> targetInstanceFactory)
{
Func <string>?shortFormGetter = null;
Func <string>?longFormGetter = null;
if (MemberName != null)
{
var methods = ReflectionHelper.GetPropertyOrMethod(type, MemberName);
if (methods.Length == 0)
{
throw new InvalidOperationException(Strings.NoPropertyOrMethodFound(MemberName, type));
}
if (methods.Length > 1)
{
throw new AmbiguousMatchException("Multiple properties or methods match the name " + MemberName);
}
shortFormGetter = () =>
{
return((string)methods[0].Invoke(targetInstanceFactory.Invoke(), Util.EmptyArray <object>()));
};
}
return(app.VersionOption(Template, shortFormGetter, longFormGetter));
}
internal CommandOption Configure(CommandLineApplication app, Type type, object targetInstance)
{
Func<string> shortFormGetter = null;
Func<string> longFormGetter = null;
if (MemberName != null)
{
var methods = GetPropertyOrMethod(type, MemberName);
if (methods.Length == 0)
{
throw new InvalidOperationException($"Could not find a property or method named {MemberName} on type {type.FullName}");
}
if (methods.Length > 1)
{
throw new AmbiguousMatchException("Multiple properties or methods match the name " + MemberName);
}
shortFormGetter = () =>
{
return methods[0].Invoke(targetInstance, Constants.EmptyArray) as string;
};
}
return app.VersionOption(Template, shortFormGetter, longFormGetter);
}
/// <summary> /// Finds <see cref="AssemblyInformationalVersionAttribute"/> on <paramref name="assembly"/> and uses that /// to set <see cref="CommandLineApplication.OptionVersion"/>. /// <para> /// Uses the Version that is part of the <see cref="AssemblyName"/> of the specified assembly /// if no <see cref="AssemblyInformationalVersionAttribute"/> is applied. /// </para> /// </summary> /// <param name="app"></param> /// <param name="template"></param> /// <param name="assembly"></param> /// <exception cref="ArgumentNullException">Either <paramref name="app"/> or <paramref name="assembly"/> is <c>null</c>.</exception> public static CommandOption VersionOptionFromAssemblyAttributes(CommandLineApplication app, string template, Assembly assembly) => app.VersionOption(template, GetInformationalVersion(assembly));