private static Watcher CreateWatcherWithOptions(Options options)
{
var watcher = new Watcher();
watcher.DirectoryPath = options.DirectoryPath ?? Environment.CurrentDirectory;
watcher.Filter = options.Filter ?? "*.log";
watcher.LineWriter = CreateWriter(options);
return watcher;
}
private static ILineWriter CreateWriter(Options options)
{
var writer = new ConsoleLineWriter();
if (options.EnableColorSchema)
{
EnableColorSchema(writer, options);
}
else
{
writer.AutoDetectColorSchema = false;
}
return writer;
}
private static Options CreateOptions(CommandLineParameters parameters)
{
var options = new Options();
options.HelpWanted = parameters.DetachNamedBool("?");
if (options.HelpWanted)
{
return options;
}
options.DirectoryPath = parameters.DetachPositional();
options.Filter = parameters.DetachNamed("f");
options.EnableColorSchema = !parameters.DetachNamedBool("nc");
options.ColorSchemaName = parameters.DetachNamed("c");
if (!options.EnableColorSchema && !string.IsNullOrEmpty(options.ColorSchemaName))
{
throw new ArgumentException("Options nc and c are incompatible with each other");
}
return options;
}
private static void EnableColorSchema(ConsoleLineWriter writer, Options options)
{
var colorSchemas = LoadColorSchemas();
if (colorSchemas == null)
{
throw new ApplicationException("No color schema file found");
}
if (options.ColorSchemaName == null)
{
writer.AutoDetectColorSchema = true;
writer.ColorSchemas = colorSchemas;
}
else
{
writer.AutoDetectColorSchema = false;
writer.ColorSchema = colorSchemas.Find(cs => cs.Name == options.ColorSchemaName);
if (writer.ColorSchema == null)
{
throw new ApplicationException(string.Format("Color schema {0} was not found.", options.ColorSchemaName));
}
}
}