New: Add additional logging when renaming extra files

(cherry picked from commit 1ae0dc81f73ef74078f07fd5536a7d9058df649d)

Closes #8966

src/NzbDrone.Core/Extras/Files/ExtraFile.cs

@@ -11,6 +11,11 @@ namespace NzbDrone.Core.Extras.Files
         public DateTime Added { get; set; }
         public DateTime LastUpdated { get; set; }
         public string Extension { get; set; }
+
+        public override string ToString()
+        {
+            return $"[{Id}] {RelativePath}";
+        }
     }
 
     public enum ExtraFileType

src/NzbDrone.Core/Extras/Files/ExtraFileManager.cs

@@ -93,6 +93,8 @@ namespace NzbDrone.Core.Extras.Files
 
         protected TExtraFile MoveFile(Movie movie, MovieFile movieFile, TExtraFile extraFile, string fileNameSuffix = null)
         {
+            _logger.Trace("Renaming extra file: {0}", extraFile);
+
             var newFolder = Path.GetDirectoryName(Path.Combine(movie.Path, movieFile.RelativePath));
             var filenameBuilder = new StringBuilder(Path.GetFileNameWithoutExtension(movieFile.RelativePath));
 
@@ -110,9 +112,13 @@ namespace NzbDrone.Core.Extras.Files
             {
                 try
                 {
+                    _logger.Trace("Renaming extra file: {0} to {1}", extraFile, newFileName);
+
                     _diskProvider.MoveFile(existingFileName, newFileName);
                     extraFile.RelativePath = movie.Path.GetRelativePath(newFileName);
 
+                    _logger.Trace("Renamed extra file from: {0}", extraFile);
+
                     return extraFile;
                 }
                 catch (Exception ex)

src/NzbDrone.Core/Extras/Subtitles/SubtitleFile.cs

@@ -18,5 +18,10 @@ namespace NzbDrone.Core.Extras.Subtitles
         public List<string> LanguageTags { get; set; }
 
         private string LanguageTagsAsString => string.Join(".", LanguageTags);
+
+        public override string ToString()
+        {
+            return $"[{Id}] {RelativePath} ({Language}{(LanguageTags.Count > 0 ? "." : "")}{LanguageTagsAsString}{Extension})";
+        }
     }
 }

src/NzbDrone.Core/Extras/Subtitles/SubtitleService.cs

@@ -82,6 +82,7 @@ namespace NzbDrone.Core.Extras.Subtitles
                     foreach (var subtitleFile in group)
                     {
                         var suffix = GetSuffix(subtitleFile.Language, copy, subtitleFile.LanguageTags, groupCount > 1);
+
                         movedFiles.AddIfNotNull(MoveFile(movie, movieFile, subtitleFile, suffix));
 
                         copy++;