CommandRunResult RunGeneric(Action <TextWriter, TextWriter> action)
{
var errorWriter = this.output.GetErrorWriter();
var infoWriter = this.output.GetInfoWriter();
try
{
action(errorWriter, infoWriter);
return(CommandRunResult.Ok());
}
catch (Exception ex)
{
infoWriter.WriteLine("Exception occurred:");
infoWriter.WriteLine(ex);
return(CommandRunResult.Fail(""));
}
}
public CommandRunResult Run(string commandName)
{
var command = this.commandsLookups[commandName].FirstOrDefault();
if (command == null)
{
return(CommandRunResult.Fail(
$"Command {commandName} not found. Available commands: [{string.Join(", ", this.commands.Select(x => x.Definition().Name))}]"));
}
var def = command.Definition();
var parameters = def.Parameters;
var taskSpecificVars = vars.WithPrefix($"Commands:{def.Name}:");
var missedRequiredParameters = parameters.Where(x => x.Required && taskSpecificVars[x.Name] == null);
if (missedRequiredParameters.Any())
{
return(Failed((error, info) =>
{
error.WriteLine($"Missing required parameters {string.Join(", ", missedRequiredParameters.Select(x => "<" + x.Name + ">"))}");
new CommandHelpPrinter(info).Print(command);
}));
}
var varsWithDefaultParameters = new ConfigVariablesBuilder()
.Add(new CommandDefinitionConfigVars(def))
.Add(taskSpecificVars)
.Build();
return(RunGeneric((error, info) =>
{
command.Run(new CommandRunContext(varsWithDefaultParameters, info, error));
}));
}
CommandRunResult Failed(Action <TextWriter, TextWriter> action)
{
action(output.GetErrorWriter(), output.GetInfoWriter());
return(CommandRunResult.Fail(""));
}