Merge pull request #2 from anno-mods/feature/add-support-for-filtering-exported-files

Author: taubenangriff

RdaConsole/ConsoleOptions.cs

@@ -35,6 +35,9 @@ class ExtractOptions
         [Option('o', "outputfile", Required = false, HelpText = "File name of the output file.")]
         public String OutputFolderName { get; set; } = "rda_out";
 
+        [Option("filter", Required = false, HelpText = "Extracts only files which satisfy a regex.")]
+        public String Filter { get; set; } = ".*";
+
         [Option('y', "overwrite", Required = false, HelpText = "Forces overwriting in the output folder")]
         public bool Overwrite { get; set; } = false;
 

RdaConsole/Program.cs

@@ -35,7 +35,7 @@ public static void Main(string[] args)
 
                     foreach (String file in extract.Files)
                     {
-                        unpacker.UnpackFile(file, extract.OutputFolderName, extract.Overwrite);
+                        unpacker.UnpackFile(file, extract.OutputFolderName, extract.Filter, extract.Overwrite);
                     }
                     return 0;
                 },

RdaConsole/RdaUnpacker.cs

@@ -4,6 +4,7 @@
 using System.Linq;
 using System.Runtime.InteropServices;
 using System.Text;
+using System.Text.RegularExpressions;
 using System.Threading.Tasks;
 
 namespace RdaConsoleTool
@@ -17,10 +18,10 @@ public RdaUnpacker()
             _reader = new RDAReader();
         }
 
-        public void UnpackFile(String Filename, String OutputFolderName, bool overwrite)
+        public void UnpackFile(String Filename, String OutputFolderName, String filter, bool overwrite)
         {
             SetupReader(Filename);
-            ExtractToOutput(OutputFolderName, overwrite);
+            ExtractToOutput(OutputFolderName, filter, overwrite);
         }
 
         private void SetupReader(String Filename)
@@ -29,23 +30,32 @@ private void SetupReader(String Filename)
             _reader.ReadRDAFile();
         }
 
-        private void ExtractToOutput(String OutputFilename, bool overwrite)
+        private void ExtractToOutput(String OutputFilename, String filter, bool overwrite)
         {
             if (Directory.Exists(OutputFilename) && !overwrite)
             {
                 Console.WriteLine($"Output Directory already exists. Use -y to overwrite");
                 return;
             }
             Directory.CreateDirectory(OutputFilename);
-            _reader.ExtractAllFiles(OutputFilename);
+            var files = _reader.rdaFolder.GetAllFiles();
+            var regex = new Regex(filter, RegexOptions.Compiled);
+            files.RemoveAll(f => !regex.IsMatch(f.FileName));
+            if (files.Count == 0)
+            {
+                Console.WriteLine($"Nothing left to extract, all files were filtered out");
+                return;
+            }
+
+            _reader.ExtractFiles(files, OutputFilename);
         }
     }
 
     internal static class RDAReaderExtensions
     {
-        public static void ExtractAllFiles(this RDAReader reader, String Path)
+        public static void ExtractFiles(this RDAReader reader, List<RDAFile> files, String Path)
         {
-            RDAExplorer.RDAFileExtension.ExtractAll(reader.rdaFolder.GetAllFiles(), Path);
+            RDAExplorer.RDAFileExtension.ExtractAll(files, Path);
         }
     }
 }