static void Main(string[] args)
{
if (!args.Any())
{
goto HelpAndExit;
}
Options everyOption = new Options(args);
if (everyOption.isHelp)
{
goto HelpAndExit;
}
string dir = args.Last();
if (!Directory.Exists(dir))
{
goto InvalidPath;
}
IEnumerable <string> everyFile =
from longFilename in Directory.GetFiles(dir)
select Path.GetFileName(longFilename);
if (everyOption.isPattern)
{
everyFile = everyFile.Where(File => everyOption.All(File));
}
var oldGroups = from file in everyFile
where FileNameRegex.RightmostInt.IsMatch(file)
orderby SortHash.Gen(file)
group file by FileNameRegex.GetHead(file) into g
select g;
Dictionary <string, int> NameCounter = new Dictionary <string, int>();
foreach (var og in oldGroups)
{
NameCounter.Add(og.Key, 0);
}
var mvArgs = from og in oldGroups
from oldName in og
select new
{
oldName,
newName = FileNameRegex.RightmostInt.Replace(oldName,
(NameCounter[og.Key]++).ToString($"D{(1+(int)Math.Floor(Math.Log10(og.Count()))) }"))
};
bool isReal = everyOption.isForce && !everyOption.isSim;
foreach (var mArg in mvArgs)
{
Console.WriteLine($"rename : {mArg.oldName} => {mArg.newName}");
if (isReal)
{
File.Move(Path.Combine(dir, mArg.oldName), Path.Combine(dir, mArg.newName));
}
}
Console.WriteLine($"{mvArgs.Count()} file(s) {(isReal?"moved":"simulated")}");
return;
HelpAndExit:
const string HelpText =
"renameNumFiles [<options>] <path>\n" +
"----------------------------------------------\n" +
"OPTIONS\n" +
"\t-h --help\tPrint this page\n" +
"\t-g\t\tPATTERN\n" +
"\t-gi\t\tPATTERN. Ignore case\n" +
"\t-gx\t\tPATTERN. Regex\n" +
"\t-n\t\tDon't actually rename anything, just show what would be done. It is default\n" +
"\t-f --force\tDo file rename if -n option is not set\n";
Console.Write(HelpText);
Environment.Exit(1);
InvalidPath:
Console.WriteLine($"Path {args.Last()} is not exist");
Environment.Exit(1);
}
public static int Gen(string fileName) => BitConverter.ToInt16(md.ComputeHash(Encoding.UTF8.GetBytes(FileNameRegex.GetHead(fileName))), 0) + FileNameRegex.GetNum(fileName);