made override structure a bit better

Contentless/Config.cs

@@ -1,3 +1,4 @@
+using System.Collections.Generic;
 using Newtonsoft.Json;
 
 namespace Contentless {
@@ -10,7 +11,7 @@ namespace Contentless {
         public bool LogSkipped = true;
 
         [JsonProperty(PropertyName = "overrides")]
-        public string[][] Overrides = { };
+        public Dictionary<string, string> Overrides = new Dictionary<string, string>();
 
     }
 }

Contentless/Program.cs

@@ -41,7 +41,7 @@ namespace Contentless {
                 Console.WriteLine("Using default config");
             }
             var excluded = config.ExcludedFiles.Select(MakeFileRegex).ToArray();
-            var overrides = config.Overrides.Select(e => (MakeFileRegex(e[0]), e[1])).ToArray();
+            var overrides = config.Overrides.Select((e, i) => (MakeFileRegex(e.Key), e.Value)).ToArray();
 
             // load any references to be able to include custom content types as well
             foreach (var line in content) {
@@ -136,7 +136,7 @@ namespace Contentless {
             }
         }
 
-        private static string GetOverrideImporterFor(string file, (Regex, string)[] overrides) {
+        private static string GetOverrideImporterFor(string file, IEnumerable<(Regex, string)> overrides) {
             foreach (var (regex, value) in overrides) {
                 if (regex.IsMatch(file))
                     return value;
@@ -144,7 +144,7 @@ namespace Contentless {
             return null;
         }
 
-        private static ImporterInfo GetImporterFor(string file, ImporterInfo[] importers) {
+        private static ImporterInfo GetImporterFor(string file, IEnumerable<ImporterInfo> importers) {
             var extension = Path.GetExtension(file);
             foreach (var importer in importers) {
                 if (importer.Importer.FileExtensions.Contains(extension))

README.md

@@ -24,12 +24,13 @@ To add a configuration file to Contentless, simply create a file named `Contentl
     // If any files that were skipped without errors should be logged (Files that already have entries or files that were ignored)
     "logSkipped": true,
     // The list of files that should use a different importer than the one that Contentless automatically determined. Can use regex
-    "overrides": [
-        // Entries are arrays containing the file regex and importer, for example [".json", "JsonImporter"]
-        // If you specify "Copy" as the importer, the file's Build Mode will be set to Copy rather than Build
-    ]
+    "overrides": {
+        // Entries are file regexes mapped to importer names, for example: ".json": "JsonImporter"
+        // If you specify "Copy" as the importer, the file's Build Mode will be set to Copy rather than Build, for example: ".txt": "Copy"
+    }
 }
 ```
+For an example of a config in use, see the [test config](https://github.com/Ellpeck/Contentless/blob/master/Test/Content/Contentless.json).
 
 # What it does
 When running Contentless and supplying the location of a MonoGame Content Pipeline project (`Content.mgcb`), it scans all of the files in the project's directory as well as its subdirectories. For each file, it checks if the `Content.mgcb` file already contains any references to that file. If no references are found, then a new reference to the file is added. 

Test/Content/Content.mgcb

@@ -64,12 +64,11 @@
 /importer:TiledMapTilesetImporter
 /processor:TiledMapTilesetProcessor
 /build:Tiled/Tileset.tsx
+#begin Json/Copy.json
+/copy:Json/Copy.json
 
 #begin Json/Test.json
 /importer:JsonContentImporter
 /processor:JsonContentProcessor
 /build:Json/Test.json
 
-#begin Json/Copy.json
-/copy:Json/Copy.json
-

Test/Content/Contentless.json

@@ -5,8 +5,8 @@
         "Ex*.png"
     ],
     "logSkipped": false,
-    "overrides": [
-        ["Copy.*", "Copy"],
-        [".json", "JsonContentImporter"]
-    ]
+    "overrides": {
+        "Copy.*": "Copy",
+        ".json": "JsonContentImporter"
+    }
 }