Add --output-name CLI option to configure output filename (#109)

Author: sunnamed434

docs/source/usage/how-to-use.rst

@@ -40,6 +40,7 @@ Available options:
 - ``--criticals-file``: Custom criticals config file
 - ``--logging-file``: Custom logging config file
 - ``--obfuscation-file``: Custom obfuscation config file
+- ``-n, --output-name``: Custom output file name (default: same as input)
 - ``--no-watermark``: Turn off watermarking
 - ``--strong-name-key``: Path to strong name key (.snk) file for assembly signing
 
@@ -177,9 +178,12 @@ You can use glob patterns (``*``) in base types and method patterns.
 
    {
      "Watermark": true,
-     "OutputDirectoryName": "output"
+     "OutputDirectoryName": "output",
+     "OutputFileName": null
    }
 
+- ``OutputFileName``: Custom output file name (e.g., ``"Protected.dll"``). When set, uses the exact name ignoring watermark suffix.
+
 Most settings have sensible defaults. You only need to change them if you want something different.
 
 Unity Integration

src/BitMono.CLI/Modules/Options.cs

@@ -31,4 +31,7 @@ internal class Options
 
     [Option("strong-name-key", Required = false, HelpText = "Path to strong name key (.snk) file for assembly signing.")]
     public string? StrongNameKey { get; set; }
+
+    [Option('n', "output-name", Required = false, HelpText = "Set output file name.")]
+    public string? OutputName { get; set; }
 }

src/BitMono.CLI/Modules/OptionsObfuscationNeedsFactory.cs

@@ -54,6 +54,11 @@ public OptionsObfuscationNeedsFactory(string[] args)
             {
                 obfuscationSettings.StrongNameKeyFile = options.StrongNameKey;
             }
+
+            if (obfuscationSettings != null && !string.IsNullOrEmpty(options.OutputName))
+            {
+                obfuscationSettings.OutputFileName = options.OutputName;
+            }
         }
         catch (Exception ex)
         {

src/BitMono.Core/Contexts/BitMonoContext.cs

@@ -6,6 +6,7 @@ public class BitMonoContext
     public string FileName { get; set; }
     public string OutputDirectoryName { get; set; }
     public string OutputFile { get; set; }
+    public string? OutputFileName { get; set; }
     public List<byte[]> ReferencesData { get; set; }
     public bool Watermark { get; set; }
 #pragma warning restore CS8618

src/BitMono.Obfuscation/Files/OutputFilePathFactory.cs

@@ -6,6 +6,11 @@ public static class OutputFilePathFactory
 
     public static string Create(BitMonoContext context)
     {
+        if (!string.IsNullOrEmpty(context.OutputFileName))
+        {
+            return Path.Combine(context.OutputDirectoryName, context.OutputFileName);
+        }
+
         var stringBuilder = new StringBuilder();
         stringBuilder.Append(Path.GetFileNameWithoutExtension(context.FileName));
         if (context.Watermark)

src/BitMono.Obfuscation/Starter/BitMonoContextFactory.cs

@@ -23,7 +23,8 @@ public BitMonoContext Create(string filePath, string outputDirectoryName, Cancel
             OutputDirectoryName = outputDirectoryName,
             ReferencesData = referencesData,
             Watermark = _obfuscationSettings.Watermark,
-            FileName = fileName
+            FileName = fileName,
+            OutputFileName = _obfuscationSettings.OutputFileName
         };
     }
 }

src/BitMono.Shared/Models/ObfuscationSettings.cs

@@ -23,4 +23,5 @@ public class ObfuscationSettings
     public string[]? SpecificNamespaces { get; set; }
     public string[]? RandomStrings { get; set; }
     public string? StrongNameKeyFile { get; set; }
+    public string? OutputFileName { get; set; }
 }