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@@ -0,0 +1,151 @@
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+using System;
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+using System.IO;
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+
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+namespace DirEx
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+{
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+ internal class Program
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+ {
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+ private static int Main(string[] args)
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+ {
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+ if (args.Length == 0)
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+ {
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+ Console.Error.WriteLine("Usage DirEx </f|/d> [/day:<num>] [/dir:<path>] [/pattern:<pattern>] /s");
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+ Console.Error.WriteLine(" /f limit result to files");
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+ Console.Error.WriteLine(" /d limit result to directories");
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+ Console.Error.WriteLine(" /day:<num> limit to older <num> days");
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+ Console.Error.WriteLine(" /dir:<path> path to list, default on working directory");
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+ Console.Error.WriteLine(" /pattern:<pattern> filter pattern default is *");
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+ Console.Error.WriteLine(" /s search in sub directories");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+
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+ var dir = Environment.CurrentDirectory;
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+ var showFile = false;
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+ var showDir = false;
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+ DateTime? day = null;
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+ var pattern = "*";
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+ SearchOption option = SearchOption.TopDirectoryOnly;
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+
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+ foreach (var arg in args)
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+ {
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+ var argKv = arg.Split(new[] { ':' }, 2);
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+ var k = argKv[0].ToLower();
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+ var v = argKv.Length == 2 ? argKv[1] : null;
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+
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+ switch (k)
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+ {
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+ default:
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+ Console.Error.WriteLine($"Unrecognizable param: {k}");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+
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+ case "/dir":
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+ if (string.IsNullOrWhiteSpace(v))
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+ {
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+ Console.Error.WriteLine("Missing argument in /dir");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+
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+ dir = v;
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+ break;
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+
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+ case "/f": showFile = true; break;
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+ case "/d": showDir = true; break;
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+ case "/pattern":
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+ if (string.IsNullOrWhiteSpace(v))
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+ {
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+ Console.Error.WriteLine("Missing argument in /pattern");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+
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+ pattern = v;
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+ break;
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+
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+ case "/day":
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+ if (string.IsNullOrWhiteSpace(v))
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+ {
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+ Console.Error.WriteLine("Missing argument in /day");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+
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+ if (int.TryParse(v, out var days))
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+ {
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+ day = DateTime.Now.AddDays(-days);
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+ }
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+ else
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+ {
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+ Console.Error.WriteLine("Invalid argument in /day");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+ break;
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+ case "/s":
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+ option = SearchOption.AllDirectories;
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+ break;
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+ }
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+ }
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+
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+ if (showFile && showDir)
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+ {
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+ Console.Error.WriteLine("Conflicted between /f and /d");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+ if (!showFile && !showDir)
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+ {
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+ Console.Error.WriteLine("Missing /f or /d");
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+ Environment.ExitCode = -1;
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+ Environment.Exit(1);
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+ return -1;
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+ }
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+
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+ if (showFile)
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+ {
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+ var entries = Directory.GetFiles(dir, pattern, option);
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+ foreach (var item in entries)
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+ {
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+ if (day.HasValue)
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+ {
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+ var info = new FileInfo(item);
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+ if (info.LastWriteTime < day) Console.WriteLine(item);
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+ }
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+ else
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+ {
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+ Console.WriteLine(item);
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+ }
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+ }
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+ }
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+
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+ if (showDir)
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+ {
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+ var entries = Directory.GetDirectories(dir, pattern, option);
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+ foreach (var item in entries)
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+ {
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+ if (day.HasValue)
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+ {
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+ var info = new DirectoryInfo(item);
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+ if (info.LastWriteTime < day) Console.WriteLine(item);
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+ }
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+ else
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+ {
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+ Console.WriteLine(item);
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+ }
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+ }
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+ }
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+
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+
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+ return 0;
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+ }
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+ }
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+}
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