/// <summary>
/// Prints the usage for given type <typeparamref name="T"/>
/// </summary>
/// <typeparam name="T">class that mape arguments for CLI</typeparam>
public static void PrintOnConsoleFor <T>(string alias) where T : ICLIArguments
{
// analyze the target type and build the model for usage
var analyzer = new ArgumentModelAnalyzer <T>();
analyzer.Analyze();
var model = analyzer.BuildModel();
// print usage
var helper = new ConsoleUsagePrinter(model, alias);
helper.Print();
}
public void ParseConsoleArguments_WorksFine()
{
//******** GIVEN
string[] arguments = new string[] { "/copy", @"--src='C:\Temp\Pluto'", "--singleOutput", "--v=WARN" };
var analyizer = new ArgumentModelAnalyzer <TestArguments>();
analyizer.Analyze();
var model = analyizer.BuildModel();
var aggregator = new CLIArgumentAggregator(model);
//******** WHEN
string[] parsed = aggregator.AdaptFromCLI(arguments);
//******** ASSERT
Assert.IsNotNull(parsed);
Assert.AreEqual(arguments.Length - 1, parsed.Length);
Assert.AreEqual(@"/copy --src='C:\Temp\Pluto'", parsed[0]);
Assert.AreEqual(arguments[3], parsed[1]);
Assert.AreEqual(arguments[2], parsed[2]);
}
public void ExampleOnRootArgumentIsSuccesfullyPrinted()
{
//******** GIVEN
var testArguments = new OnlyOptionsArguments();
var analyzer = new ArgumentModelAnalyzer <OnlyOptionsArguments>();
analyzer.Analyze();
var model = analyzer.BuildModel();
this._Printer = new StringBuilderUsagePrinter(model, "my.exe");
//******** WHEN
this._Printer.Print();
//******** ASSERT
var text = this._Printer.GetText();
Assert.IsNotNull(text);
Assert.IsTrue(text.Contains(testArguments.Examples.ToList()[0].HelpText), $"Unable to find help text {testArguments.Examples.ToList()[0].HelpText}");
Assert.IsTrue(text.Contains(testArguments.Examples.ToList()[1].HelpText), $"Unable to find help text {testArguments.Examples.ToList()[1].HelpText}");
}
public void ExampleOnVerbAreSuccesfullyPrinted()
{
//******** GIVEN
var testArguments = new OptionsPlusVerbArguments()
{
CopyWithArguments = new CopyFilesWith1MandatoryOption()
};
var analyzer = new ArgumentModelAnalyzer <OptionsPlusVerbArguments>();
analyzer.Analyze();
var model = analyzer.BuildModel();
this._Printer = new StringBuilderUsagePrinter(model, "my.exe");
//******** WHEN
this._Printer.Print();
//******** ASSERT
var text = this._Printer.GetText();
Assert.IsNotNull(text);
Assert.IsTrue(text.Contains(testArguments.CopyWithArguments.Examples.ToList()[0].HelpText), $"Unable to find help text {testArguments.CopyWithArguments.Examples.ToList()[0].HelpText}");
}
/// <summary>
/// Parses the cli arguments and stores internally the proper models
/// </summary>
/// <param name="args">string arguments of the CLI</param>
/// <exception cref="System.ArgumentException">Thrown if <paramref name="args"/> is null, empty or whitespace.</exception>
public T Parse <T>(string[] args) where T : CLIArguments
{
string[] _Arguments = args ?? throw new ArgumentNullException(nameof(args));
// parsing
if (this._ArgumentsAdapter != null)
{
_Arguments = this._ArgumentsAdapter.Invoke(args);
}
// initialize the output
T parsedArguments = null;
try
{
// analyze the target type and build the model for usage
var analyzer = new ArgumentModelAnalyzer <T>();
analyzer.Analyze();
this._Model = analyzer.BuildModel();
// if needed, I aggregate options for verbs with the verb itself
if (!_UseAggregatedArgumentsAsInputForVerbs)
{
var aggregator = new CLIArgumentAggregator(this._Model);
_Arguments = aggregator.AdaptFromCLI(_Arguments);
}
// instance a new item
parsedArguments = (T)this._ArgumentsActivator();
List <KeyValuePair <PropertyInfo, Option> > options;
List <KeyValuePair <PropertyInfo, Verb> > verbs;
ParseArguments(_Arguments, parsedArguments, out options, out verbs);
// check mandatory fields
foreach (var opt in options.Where(x => x.Value.Mandatory))
{
var currentValue = opt.Key.GetValue(parsedArguments);
if (currentValue == null)
{
throw new InvalidCLIArgumentException($"Invalid Argument: {opt.Value.LongCode} is missing", opt.Value.LongCode);
}
}
// success
if (this._OnSuccessCallback != null)
{
this._OnSuccessCallback(parsedArguments);
}
}
catch (Exception ex)
{
//store the error
this._OccurredError = ex;
// callback
if (this._OnErrorCallback != null)
{
this._OnErrorCallback(ex);
}
}
return(parsedArguments);
}
