static void Main(string[] args)
{
TailfParameters prms = new TailfParameters(args);
try
{
prms.Parse();
if (prms.FileNames.Count() == 0)
{
throw new Exception("At least one file must be specified");
}
if (prms.FileNames.Count() > 1)
{
throw new Exception("At most one file must be specified");
}
int n = 0;
int.TryParse(prms.NOfLines, out n);
if (n == 0)
n = DefaultLines;
if(!string.IsNullOrEmpty(prms.ColorMap))
{
colorMappingDict = prms.ColorMap.Split("};,".ToArray(), StringSplitOptions.RemoveEmptyEntries)
.Select(m =>
{
var arr = m.Split("=".ToArray(), 2);
return new KeyValuePair<string, ConsoleColor>(arr[0], (ConsoleColor)Enum.Parse(typeof(ConsoleColor), arr[1]));
})
.ToDictionary(p => p.Key, p => p.Value, StringComparer.OrdinalIgnoreCase);
}
Tail tail = new Tail(prms.FileNames.First(), n);
tail.LevelRegex = prms.LevelRegex;
tail.LineFilter = prms.Filter;
tail.Changed += new EventHandler<Tail.TailEventArgs>(tail_Changed);
tail.Run();
Console.ReadLine();
tail.Stop();
}
catch (NotEnougthParametersException)
{
Console.Error.WriteLine("Use:");
Console.Error.WriteLine("Tailf " + prms.GetShortHelp()+" <filename>");
Console.Error.WriteLine(prms.GetHelp());
}
catch (Exception e)
{
Console.Error.WriteLine("Fatal error:" + e.Message);
}
}
static void tail_Changed(object sender, Tail.TailEventArgs e)
{
if(colorMappingDict != null)
{
ConsoleColor color;
if(!colorMappingDict.TryGetValue(e.Level, out color))
{
if (prevColor.HasValue)
{
prevColor = null;
Console.ResetColor();
}
}
else if(!prevColor.HasValue || prevColor.Value != color)
{
Console.ForegroundColor = color;
prevColor = color;
}
}
Console.Write(e.Line);
}
