Some stuff

src/Tgstation.Server.Host/Components/Configuration.cs

@@ -2,6 +2,7 @@
 using System;
 using System.Collections.Generic;
 using System.Globalization;
+using System.Linq;
 using System.Threading;
 using System.Threading.Tasks;
 using Tgstation.Server.Api.Models;
@@ -42,7 +43,7 @@ namespace Tgstation.Server.Host.Components
 		}
 
 		/// <inheritdoc />
-		public async Task<ServerSideModifications> CopyDMFilesTo(string destination, CancellationToken cancellationToken)
+		public async Task<ServerSideModifications> CopyDMFilesTo(string dmeFile, string destination, CancellationToken cancellationToken)
 		{
 			//just assume no other fs race conditions here
 			var dmeExistsTask = ioManager.FileExists(ioManager.ConcatPath(CodeModificationsSubdirectory, dmeFile), cancellationToken);
@@ -77,6 +78,9 @@ namespace Tgstation.Server.Host.Components
 		/// <inheritdoc />
 		public Task<IReadOnlyList<ConfigurationFile>> ListDirectory(string configurationRelativePath, ISystemIdentity systemIdentity, CancellationToken cancellationToken)
 		{
+			if (String.IsNullOrEmpty(configurationRelativePath))
+				configurationRelativePath = ".";
+
 			throw new NotImplementedException();
 		}
 

src/Tgstation.Server.Host/Components/DreamMaker.cs

@@ -191,7 +191,7 @@ namespace Tgstation.Server.Host.Components
 			var dmePath = ioManager.ConcatPath(dirA, String.Concat(job.DmeName, DmeExtension));
 			var dmeReadTask = ioManager.ReadAllBytes(dmePath, cancellationToken);
 
-			var dmeModificationsTask = configuration.CopyDMFilesTo(ioManager.ResolvePath(dirA), cancellationToken);
+			var dmeModificationsTask = configuration.CopyDMFilesTo(dmePath, ioManager.ResolvePath(dirA), cancellationToken);
 
 			var dmeBytes = await dmeReadTask.ConfigureAwait(false);
 			var dme = Encoding.UTF8.GetString(dmeBytes);

src/Tgstation.Server.Host/Components/IConfiguration.cs

@@ -14,10 +14,11 @@ namespace Tgstation.Server.Host.Components
 		/// <summary>
 		/// Copies all files in the CodeModifications directory to <paramref name="destination"/>
 		/// </summary>
+		/// <param name="dmeFile">The .dme file being compiled</param>
 		/// <param name="destination">Path to the destination folder</param>
 		/// <param name="cancellationToken">The <see cref="CancellationToken"/> for the operation</param>
 		/// <returns>A <see cref="Task{TResult}"/> resulting in the <see cref="ServerSideModifications"/> if any</returns>
-		Task<ServerSideModifications> CopyDMFilesTo(string destination, CancellationToken cancellationToken);
+		Task<ServerSideModifications> CopyDMFilesTo(string dmeFile, string destination, CancellationToken cancellationToken);
 
 		/// <summary>
 		/// Symlinks all directories in the GameData directory to <paramref name="destination"/>

src/Tgstation.Server.Host/Core/DefaultIOManager.cs

@@ -220,5 +220,18 @@ namespace Tgstation.Server.Host.Core
 			}
 			return (IReadOnlyList<string>)results;
 		}, cancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Current);
+
+		/// <inheritdoc />
+		public Task<IReadOnlyList<string>> GetFiles(string path, CancellationToken cancellationToken) => Task.Factory.StartNew(() =>
+		{
+			path = ResolvePath(path);
+			var results = new List<string>();
+			foreach (var I in Directory.EnumerateFiles(path))
+			{
+				cancellationToken.ThrowIfCancellationRequested();
+				results.Add(I);
+			}
+			return (IReadOnlyList<string>)results;
+		}, cancellationToken, TaskCreationOptions.LongRunning, TaskScheduler.Current);
 	}
 }

src/Tgstation.Server.Host/Core/IIOManager.cs

@@ -72,6 +72,14 @@ namespace Tgstation.Server.Host.Core
 		/// <returns>A <see cref="Task{TResult}"/> resulting in the directories in <paramref name="path"/></returns>
 		Task<IReadOnlyList<string>> GetDirectories(string path, CancellationToken cancellationToken);
 
+		/// <summary>
+		/// Returns file names in a given <paramref name="path"/>
+		/// </summary>
+		/// <param name="path">The path to search for files</param>
+		/// <param name="cancellationToken">The <see cref="CancellationToken"/> for the operation</param>
+		/// <returns>A <see cref="Task{TResult}"/> resulting in the files in <paramref name="path"/></returns>
+		Task<IReadOnlyList<string>> GetFiles(string path, CancellationToken cancellationToken);
+
 		/// <summary>
 		/// Writes some <paramref name="contents"/> to a file at <paramref name="path"/> overwriting previous content
 		/// </summary>