private async Task ScanFileAsync()

in Core/src/Impl/Commands/LocalFilesScanner.cs [70:103]
33 lines of code
11 McCabe index (conditional complexity)

    private async Task ScanFileAsync(string sourceDir, string sourceFile, ITracer tracer)
    {
      var srcFile = Path.GetRelativePath(sourceDir, sourceFile);
      tracer.Information($"  Scanning {srcFile}...");
      foreach (var (symbolStoreKey, keyType) in GetKeyInfos(tracer, sourceFile))
      {
        var index = symbolStoreKey.Index;
        if (!SymbolStoreKey.IsKeyValid(index))
        {
          tracer.Error($"Invalid key index in file {index}");
        }
        else if (keyType == KeyType.Elf && Path.GetExtension(sourceFile) == ".debug" && !index.EndsWith("/_.debug"))
        {
          // Bug: Check that ELF .debug was processed right way! See https://github.com/dotnet/symstore/issues/158
          tracer.Error($"ELF file {sourceFile} was processed incorrectly because Microsoft.SymbolStore doesn't support .debug extension");
        }
        else
        {
          var dstFile = index;
          if (
            myCompressWPdb && keyType == KeyType.WPdb ||
            myCompressPe && keyType == KeyType.Pe)
          {
            await myProcessCompressed(tracer, sourceDir, srcFile, SymbolStoragePath.FromSystemPath(Path.ChangeExtension(dstFile, PathUtil.GetPackedExtension(Path.GetExtension(dstFile.AsSpan())))));
            if (myIsKeepNonCompressed)
              await myProcessNormal(tracer, sourceDir, srcFile, SymbolStoragePath.FromSystemPath(dstFile));
          }
          else
          {
            await myProcessNormal(tracer, sourceDir, srcFile, SymbolStoragePath.FromSystemPath(dstFile));
          }
        }
      }
    }