Killed history

NadekoBot.Core/Services/Impl/YtdlOperation.cs

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+using System;
+using System.Collections.Generic;
+using System.ComponentModel;
+using System.Diagnostics;
+using System.Text;
+using System.Threading.Tasks;
+using NadekoBot.Extensions;
+using Serilog;
+
+namespace NadekoBot.Core.Services.Impl
+{
+    public class YtdlOperation
+    {
+        private readonly string _baseArgString;
+
+        public YtdlOperation(string baseArgString)
+        {
+            _baseArgString = baseArgString;
+        }
+
+        private Process CreateProcess(string[] args)
+        {
+            args = args.Map(arg => arg.Replace("\"", ""));
+            return new Process()
+            {
+                StartInfo = new ProcessStartInfo()
+                {
+                    FileName = "youtube-dl",
+                    Arguments = string.Format(_baseArgString, args),
+                    UseShellExecute = false,
+                    RedirectStandardError = true,
+                    RedirectStandardOutput = true,
+                    StandardOutputEncoding = Encoding.UTF8,
+                    StandardErrorEncoding = Encoding.UTF8,
+                    CreateNoWindow = true,
+                },
+            };
+        }
+        
+        public async Task<string> GetDataAsync(params string[] args)
+        {
+            try
+            {
+                using var process = CreateProcess(args);
+
+                Log.Debug($"Executing {process.StartInfo.FileName} {process.StartInfo.Arguments}");
+                process.Start();
+
+                var str = await process.StandardOutput.ReadToEndAsync().ConfigureAwait(false);
+                var err = await process.StandardError.ReadToEndAsync().ConfigureAwait(false);
+                if (!string.IsNullOrEmpty(err))
+                    Log.Warning("YTDL warning: {YtdlWarning}", err);
+
+                return str;
+            }
+            catch (Win32Exception)
+            {
+                Log.Error("youtube-dl is likely not installed. " +
+                          "Please install it before running the command again");
+                return default;
+            }
+            catch (Exception ex)
+            {
+                Log.Error(ex , "Exception running youtube-dl: {ErrorMessage}", ex.Message);
+                return default;
+            }
+        }
+
+        public async IAsyncEnumerable<string> EnumerateDataAsync(params string[] args)
+        {
+            using var process = CreateProcess(args);
+
+            Log.Debug($"Executing {process.StartInfo.FileName} {process.StartInfo.Arguments}");
+            process.Start();
+            
+            string line;
+            while((line = await process.StandardOutput.ReadLineAsync()) != null)
+                yield return line;
+        }
+    }
+}