/// <summary>
/// Initializes an instance of <see cref="CliApplication"/>.
/// </summary>
internal CliApplication(IServiceProvider serviceProvider,
IConsole console,
EnvironmentVariablesAccessor environmentVariablesAccessor,
ApplicationMetadata metadata,
Action <ApplicationMetadata, IConsole>?startupMessage)
{
_serviceProvider = serviceProvider;
_environmentVariablesAccessor = environmentVariablesAccessor;
_metadata = metadata;
_startupMessage = startupMessage;
_console = console;
_logger = serviceProvider.GetRequiredService <ILogger <CliApplication> >();
_cliCommandExecutor = serviceProvider.GetRequiredService <ICliCommandExecutor>();
_rootSchemaAccessor = serviceProvider.GetRequiredService <IRootSchemaAccessor>();
_applicationLifetime = (CliApplicationLifetime)serviceProvider.GetRequiredService <ICliApplicationLifetime>();
}
/// <summary>
/// Creates an instance of <see cref="CliApplication"/> using configured parameters.
/// Default values are used in place of parameters that were not specified.
/// A scope is defined as a lifetime of a command execution pipeline that includes directives handling.
/// </summary>
public CliApplication Build()
{
if (_cliApplicationBuilt)
{
throw new InvalidOperationException("Build can only be called once.");
}
_cliApplicationBuilt = true;
// Set default values
_title ??= AssemblyUtils.TryGetDefaultTitle() ?? "App";
_executableName ??= AssemblyUtils.TryGetDefaultExecutableName() ?? "app";
_versionText ??= AssemblyUtils.TryGetDefaultVersionText() ?? "v1.0";
_console ??= new SystemConsole();
if (_startupMode is null || _modeTypes.Count == 0)
{
this.UseDirectMode(true);
}
// Add core middlewares to the end of the pipeline
this.AddAfterUserMiddlewares();
// Create context
var _serviceCollection = new ServiceCollection();
var metadata = new ApplicationMetadata(_title, _executableName, _versionText, _description);
var configuration = new ApplicationConfiguration(_modeTypes,
_commandTypes,
_directivesTypes,
_middlewareTypes,
_startupMode !,
_serviceCollection);
var environmentVariablesAccessor = new EnvironmentVariablesAccessor();
// Add core services
_serviceCollection.AddOptions();
_serviceCollection.AddSingleton(typeof(ApplicationMetadata), metadata);
_serviceCollection.AddSingleton(typeof(ApplicationConfiguration), configuration);
_serviceCollection.AddSingleton(typeof(IConsole), _console);
_serviceCollection.AddSingleton(typeof(IEnvironmentVariablesAccessor), environmentVariablesAccessor);
_serviceCollection.AddSingleton <IRootSchemaAccessor, RootSchemaAccessor>();
_serviceCollection.AddSingleton <ICliCommandExecutor, CliCommandExecutor>();
_serviceCollection.AddSingleton <ICliApplicationLifetime, CliApplicationLifetime>();
_serviceCollection.AddScoped(typeof(ICliContext), (provider) =>
{
IRootSchemaAccessor rootSchemaAccessor = provider.GetRequiredService <IRootSchemaAccessor>();
return(new CliContext(metadata,
configuration,
rootSchemaAccessor.RootSchema,
environmentVariablesAccessor.EnvironmentVariables,
_console));
});
_serviceCollection.AddLogging(cfg =>
{
cfg.ClearProviders();
cfg.AddDebug();
cfg.SetMinimumLevel(LogLevel.Information);
});
IServiceProvider serviceProvider = CreateServiceProvider(_serviceCollection);
return(new CliApplication(serviceProvider, _console, environmentVariablesAccessor, metadata, _startupMessage));
}
