Updated manifest-to-text conversion to imitate Steam format

DepotDownloader/ContentDownloader.cs

@@ -907,21 +907,7 @@ namespace DepotDownloader
 
             if (Config.DownloadManifestOnly)
             {
-                StringBuilder manifestBuilder = new StringBuilder();
-                string txtManifest = Path.Combine(depot.installDir, string.Format("manifest_{0}_{1}.txt", depot.id, depot.manifestId));
-                manifestBuilder.Append(string.Format("{0}\n\n", newProtoManifest.CreationTime));
-
-                foreach (var file in newProtoManifest.Files)
-                {
-                    if (file.Flags.HasFlag(EDepotFileFlag.Directory))
-                        continue;
-
-                    manifestBuilder.Append(string.Format("{0}\n", file.FileName));
-                    manifestBuilder.Append(string.Format("\t{0}\n", file.TotalSize));
-                    manifestBuilder.Append(string.Format("\t{0}\n", BitConverter.ToString(file.FileHash).Replace("-", "")));
-                }
-
-                File.WriteAllText(txtManifest, manifestBuilder.ToString());
+                DumpManifestToTextFile(depot, newProtoManifest);
                 return null;
             }
 
@@ -1295,5 +1281,48 @@ namespace DepotDownloader
             }
 
         }
+
+        static void DumpManifestToTextFile( DepotDownloadInfo depot, ProtoManifest manifest )
+        {
+            var txtManifest = Path.Combine( depot.installDir, $"manifest_{depot.id}_{depot.manifestId}.txt" );
+
+            using ( var sw = new StreamWriter( txtManifest ) )
+            {
+                sw.WriteLine( $"Content Manifest for Depot {depot.id}" );
+                sw.WriteLine();
+                sw.WriteLine( $"Manifest ID / date     : {depot.manifestId} / {manifest.CreationTime}" );
+
+                int numFiles = 0, numChunks = 0;
+                ulong uncompressedSize = 0, compressedSize = 0;
+
+                foreach ( var file in manifest.Files )
+                {
+                    if ( file.Flags.HasFlag( EDepotFileFlag.Directory ) )
+                        continue;
+
+                    numFiles++;
+                    numChunks += file.Chunks.Count;
+
+                    foreach ( var chunk in file.Chunks )
+                    {
+                        uncompressedSize += chunk.UncompressedLength;
+                        compressedSize += chunk.CompressedLength;
+                    }
+                }
+
+                sw.WriteLine( $"Total number of files  : {numFiles}" );
+                sw.WriteLine( $"Total number of chunks : {numChunks}" );
+                sw.WriteLine( $"Total bytes on disk    : {uncompressedSize}" );
+                sw.WriteLine( $"Total bytes compressed : {compressedSize}" );
+                sw.WriteLine();
+                sw.WriteLine( "          Size Chunks File SHA                                 Flags Name" );
+
+                foreach ( var file in manifest.Files )
+                {
+                    var sha1Hash = BitConverter.ToString( file.FileHash ).Replace( "-", "" );
+                    sw.WriteLine( $"{file.TotalSize,14} {file.Chunks.Count,6} {sha1Hash} {file.Flags,5:D} {file.FileName}" );
+                }
+            }
+        }
     }
 }