Organize patterns and shit

CHUNITHM-Patch-Finder.csproj

@@ -15,9 +15,9 @@
     </ItemGroup>
 
     <ItemGroup>
-        <ContentWithTargetPath Include="patterns.yaml">
+      <ContentWithTargetPath Include="Patterns/**">
         <CopyToOutputDirectory>PreserveNewest</CopyToOutputDirectory>
-            <TargetPath>%(Filename)%(Extension)</TargetPath>
+        <TargetPath>Patterns/%(RecursiveDir)/%(Filename)%(Extension)</TargetPath>
       </ContentWithTargetPath>
     </ItemGroup>
     

Program.cs

@@ -11,17 +11,29 @@ using YamlDotNet.Serialization.NamingConventions;
 
 if (args.Length < 1)
 {
-    Console.WriteLine($"Usage: {Environment.ProcessPath} <PATH TO EXE>");
+    Console.WriteLine($"Usage: {Environment.ProcessPath} <PATH TO EXE> [PATH TO PATTERNS]");
     Environment.Exit(22); // EINVAL
 }
 
 var deserializer = new DeserializerBuilder()
     .WithNamingConvention(LowerCaseNamingConvention.Instance)
     .Build();
+var exeFile = args[0];
+var exeFileName = Path.GetFileName(exeFile);
+var patternsFile = args.Length >= 2 
+    ? args[1] 
+    : Path.Join("Patterns", Path.GetFileNameWithoutExtension(exeFile) + ".yaml");
+
+if (!Path.Exists(patternsFile))
+{
+    Console.WriteLine($"[ERROR] Could not find patterns file {patternsFile}. Nothing to search for.");
+    Environment.Exit(1);
+}
+
 var patches =
     deserializer.Deserialize<Pattern[]>(
-        File.ReadAllText("patterns.yaml"));
-var binary = File.ReadAllBytes(args[0]);
+        File.ReadAllText(patternsFile));
+var binary = File.ReadAllBytes(exeFile);
 var scanner = new Scanner(binary);
 var exportedPatches = new List<BemaniPatcherPatch>();
 
@@ -70,7 +82,7 @@ foreach (var patch in patches)
 }
 
 // max track count patch
-if (Path.GetFileName(args[0]) == "chusanApp.exe")
+if (exeFileName == "chusanApp.exe")
 {
     var offset = scanner
         .FindPatterns([

README.md

@@ -8,11 +8,13 @@ Does not do any patch validation for now.
 
 ## Usage
 ```sh
-./CHUNITHM-Patch-Finder <PATH TO EXE>
+./CHUNITHM-Patch-Finder <PATH TO EXE> [PATH TO PATTERNS]
 ```
 
-The program expects a file called `patterns.yaml` (see files in
-repo for example) and outputs BemaniPatcher-compatible patches
-to `patches.json`.
+If a patterns file is not specified, the program defaults to
+finding a file named `[file].yaml` under its `Patterns`
+directory.
+
+The output is in a format compatible with [BemaniPatcher](https://github.com/mon/BemaniPatcher).
 
 [How to find signatures](https://reloaded-project.github.io/Reloaded-II/CheatSheet/SignatureScanning/)