private static async Task <int> MainAsync(string[] args)
{
Mp3YearTagger onlineMp3Retagger = null;
try
{
_optionsCli = new Mp3YearTaggerOptionsCli();
CommandLineParser.ParseArguments(args, _optionsCli);
if (!_optionsCli.ValidateOptions())
{
return(1);
}
onlineMp3Retagger = new Mp3YearTagger(_optionsCli);
onlineMp3Retagger.VerboseOutput += HandleVerboseOutput;
if (_optionsCli.CollectionsOnly)
{
await onlineMp3Retagger.ProcessCollectionsDirectoriesAsync(_optionsCli.Directory);
}
else
{
await onlineMp3Retagger.ProcessDirectoryAsync(_optionsCli.Directory);
}
return(0);
}
catch (ApplicationException ex)
{
Console.Error.WriteLine(ex.Message);
return(1);
}
catch (ArgumentException ex)
{
Console.Error.WriteLine(ex.Message);
return(1);
}
catch (Exception ex)
{
Console.Error.WriteLine(ex.ToString());
return(1);
}
finally
{
if (onlineMp3Retagger != null)
{
onlineMp3Retagger.VerboseOutput -= HandleVerboseOutput;
}
}
}
private static bool TryExpandMergedArgs(int argIndex, ref string[] args, Mp3YearTaggerOptionsCli optionsCli)
{
string potentiallyMergedArgs = args[argIndex];
if (potentiallyMergedArgs == null || potentiallyMergedArgs.Length <= 2 || potentiallyMergedArgs[0] != '-' || potentiallyMergedArgs[1] == '-')
{
return(false);
}
var newArgs = potentiallyMergedArgs.Substring(1).Select(ch => $"-{ch}");
var argsList = new List <string>(args);
// Replace the merged args with expanded args
argsList.RemoveAt(argIndex);
argsList.InsertRange(argIndex, newArgs);
args = argsList.ToArray();
return(true);
}
private static void ShowHelp()
{
var defaultValues = new Mp3YearTaggerOptionsCli();
Console.WriteLine($"Usage: Mp3YearTagger [OPTIONS]... [DIRECTORY]");
Console.WriteLine();
Console.WriteLine($"Required arguments:");
Console.WriteLine($" [DIRECTORY] directory path with MP3 files to process");
Console.WriteLine();
Console.WriteLine($"Optional arguments:");
Console.WriteLine($" -c, --collections-only process collection directories recursively (see -k, --collection-keywords)");
Console.WriteLine($" -d, --dry-run dry run - do not make any file changes - will output changes that would have been made");
Console.WriteLine($" -f, --flag-filename override the filename to create in each directory after processing (use \"\" to disable)");
Console.WriteLine($" (default: {defaultValues.FlagFilename})");
Console.WriteLine($" -k, --collection-keywords comma-separated list of directory key words that indicate a collection (override)");
Console.WriteLine($" (default: {string.Join(", ", defaultValues.CollectionKeywords)})");
Console.WriteLine($" -q, --quiet quite, no output (except for errors)");
Console.WriteLine($" -r, --recursive process directory recursively");
Console.WriteLine($" -t, --web-api-throttle-ms milliseconds to wait between MusicBrainz API requests to avoid getting banned (default: {defaultValues.WebApiThrottleMs})");
Console.WriteLine($" -v, --verbose increase verbose output (Example: -vvv for verbosity level 3)");
}
public static int ParseArguments(string[] args, Mp3YearTaggerOptionsCli optionsCli)
{
return(ParseArgumentsInternal(args, optionsCli));
}
private static int ParseArgumentsInternal(string[] args, Mp3YearTaggerOptionsCli optionsCli)
{
if (args == null)
{
return(0);
}
var argsNotUsedCount = 0;
var argIndex = 0;
var requiredArgumentCandidates = new List <string>();
try
{
while (argIndex < args.Length)
{
string arg = args[argIndex];
switch (arg)
{
case "--collections-only":
case "-c":
optionsCli.CollectionsOnly = true;
break;
case "--dry-run":
case "-d":
optionsCli.DryRunMode = true;
break;
case "--flag-filename":
case "-f":
optionsCli.FlagFilename = GetNextArg(args, ref argIndex);
break;
case "--collection-keywords":
case "-k":
optionsCli.CollectionKeywords = GetNextArgAsStringEnumerable(args, ref argIndex).ToList();
break;
case "--web-api-throttle-ms":
case "-t":
optionsCli.WebApiThrottleMs = GetNextArgAsInt(args, ref argIndex);
break;
case "--recursive":
case "-r":
optionsCli.IsRecursive = true;
break;
case "--verbose":
case "-v":
optionsCli.ShowVerboseLevel++;
break;
case "--quiet":
case "-q":
optionsCli.ShowVerboseLevel = -1;
break;
case "--help":
case "-h":
case "/h":
case "/?":
ShowHelp();
Environment.Exit(0);
break;
default:
if (TryExpandMergedArgs(argIndex, ref args, optionsCli))
{
continue;
}
else
{
requiredArgumentCandidates.Add(arg);
argsNotUsedCount++;
}
break;
}
argIndex++;
}
}
catch (ArgumentException ex)
{
Console.Error.WriteLine(ex.Message);
Environment.Exit(1);
}
if (requiredArgumentCandidates.Count != 1)
{
Console.Error.WriteLine($"Invalid arguments: {string.Join(", ", requiredArgumentCandidates)}");
Environment.Exit(1);
}
optionsCli.Directory = requiredArgumentCandidates[0];
argsNotUsedCount--;
return(argsNotUsedCount);
}
