Add max token length (including ellipsis) for some tokens

New: Accept ':##' on renaming tokens to allow specifying a maximum length for series, episode titles and release group
Closes #6416

src/NzbDrone.Common.Test/ExtensionTests/StringExtensionTests/ReverseFixture.cs

@@ -0,0 +1,17 @@
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Common.Extensions;
+
+namespace NzbDrone.Common.Test.ExtensionTests.StringExtensionTests
+{
+    [TestFixture]
+    public class ReverseFixture
+    {
+        [TestCase("input", "tupni")]
+        [TestCase("racecar", "racecar")]
+        public void should_reverse_string(string input, string expected)
+        {
+            input.Reverse().Should().Be(expected);
+        }
+    }
+}

src/NzbDrone.Common/Extensions/StringExtensions.cs

@@ -242,5 +242,14 @@ namespace NzbDrone.Common.Extensions
         {
             return input.Contains(':') ? $"[{input}]" : input;
         }
+
+        public static string Reverse(this string text)
+        {
+            var array = text.ToCharArray();
+
+            Array.Reverse(array);
+
+            return new string(array);
+        }
     }
 }

src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/TruncatedReleaseGroupFixture.cs

@@ -0,0 +1,94 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.CustomFormats;
+using NzbDrone.Core.MediaFiles;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Qualities;
+using NzbDrone.Core.Test.Framework;
+using NzbDrone.Core.Tv;
+
+namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
+{
+    [TestFixture]
+
+    public class TruncatedReleaseGroupFixture : CoreTest<FileNameBuilder>
+    {
+        private Series _series;
+        private List<Episode> _episodes;
+        private EpisodeFile _episodeFile;
+        private NamingConfig _namingConfig;
+
+        [SetUp]
+        public void Setup()
+        {
+            _series = Builder<Series>
+                    .CreateNew()
+                    .With(s => s.Title = "Series Title")
+                    .Build();
+
+            _namingConfig = NamingConfig.Default;
+            _namingConfig.MultiEpisodeStyle = 0;
+            _namingConfig.RenameEpisodes = true;
+
+            Mocker.GetMock<INamingConfigService>()
+                  .Setup(c => c.GetConfig()).Returns(_namingConfig);
+
+            _episodes = new List<Episode>
+                        {
+                            Builder<Episode>.CreateNew()
+                                            .With(e => e.Title = "Episode Title 1")
+                                            .With(e => e.SeasonNumber = 1)
+                                            .With(e => e.EpisodeNumber = 1)
+                                            .Build()
+                        };
+
+            _episodeFile = new EpisodeFile { Quality = new QualityModel(Quality.HDTV720p), ReleaseGroup = "SonarrTest" };
+
+            Mocker.GetMock<IQualityDefinitionService>()
+                .Setup(v => v.Get(Moq.It.IsAny<Quality>()))
+                .Returns<Quality>(v => Quality.DefaultQualityDefinitions.First(c => c.Quality == v));
+
+            Mocker.GetMock<ICustomFormatService>()
+                  .Setup(v => v.All())
+                  .Returns(new List<CustomFormat>());
+        }
+
+        private void GivenProper()
+        {
+            _episodeFile.Quality.Revision.Version = 2;
+        }
+
+        [Test]
+        public void should_truncate_from_beginning()
+        {
+            _series.Title = "The Fantastic Life of Mr. Sisko";
+
+            _episodeFile.Quality.Quality = Quality.Bluray1080p;
+            _episodeFile.ReleaseGroup = "IWishIWasALittleBitTallerIWishIWasABallerIWishIHadAGirlWhoLookedGoodIWouldCallHerIWishIHadARabbitInAHatWithABatAndASixFourImpala";
+            _episodes = _episodes.Take(1).ToList();
+            _namingConfig.StandardEpisodeFormat = "{Series Title} - S{season:00}E{episode:00} - {Episode Title} {Quality Full}-{ReleaseGroup:12}";
+
+            var result = Subject.BuildFileName(_episodes, _series, _episodeFile, ".mkv");
+            result.Length.Should().BeLessOrEqualTo(255);
+            result.Should().Be("The Fantastic Life of Mr. Sisko - S01E01 - Episode Title 1 Bluray-1080p-IWishIWas....mkv");
+        }
+
+        [Test]
+        public void should_truncate_from_from_end()
+        {
+            _series.Title = "The Fantastic Life of Mr. Sisko";
+
+            _episodeFile.Quality.Quality = Quality.Bluray1080p;
+            _episodeFile.ReleaseGroup = "IWishIWasALittleBitTallerIWishIWasABallerIWishIHadAGirlWhoLookedGoodIWouldCallHerIWishIHadARabbitInAHatWithABatAndASixFourImpala";
+            _episodes = _episodes.Take(1).ToList();
+            _namingConfig.StandardEpisodeFormat = "{Series Title} - S{season:00}E{episode:00} - {Episode Title} {Quality Full}-{ReleaseGroup:-17}";
+
+            var result = Subject.BuildFileName(_episodes, _series, _episodeFile, ".mkv");
+            result.Length.Should().BeLessOrEqualTo(255);
+            result.Should().Be("The Fantastic Life of Mr. Sisko - S01E01 - Episode Title 1 Bluray-1080p-...ASixFourImpala.mkv");
+        }
+    }
+}

src/NzbDrone.Core.Test/OrganizerTests/FileNameBuilderTests/TruncatedSeriesTitleFixture.cs

@@ -0,0 +1,57 @@
+using System.Collections.Generic;
+using System.Linq;
+using FizzWare.NBuilder;
+using FluentAssertions;
+using NUnit.Framework;
+using NzbDrone.Core.CustomFormats;
+using NzbDrone.Core.Organizer;
+using NzbDrone.Core.Qualities;
+using NzbDrone.Core.Test.Framework;
+using NzbDrone.Core.Tv;
+
+namespace NzbDrone.Core.Test.OrganizerTests.FileNameBuilderTests
+{
+    [TestFixture]
+
+    public class TruncatedSeriesTitleFixture : CoreTest<FileNameBuilder>
+    {
+        private Series _series;
+        private NamingConfig _namingConfig;
+
+        [SetUp]
+        public void Setup()
+        {
+            _series = Builder<Series>
+                    .CreateNew()
+                    .With(s => s.Title = "Series Title")
+                    .Build();
+
+            _namingConfig = NamingConfig.Default;
+            _namingConfig.MultiEpisodeStyle = 0;
+            _namingConfig.RenameEpisodes = true;
+
+            Mocker.GetMock<INamingConfigService>()
+                  .Setup(c => c.GetConfig()).Returns(_namingConfig);
+
+            Mocker.GetMock<IQualityDefinitionService>()
+                .Setup(v => v.Get(Moq.It.IsAny<Quality>()))
+                .Returns<Quality>(v => Quality.DefaultQualityDefinitions.First(c => c.Quality == v));
+
+            Mocker.GetMock<ICustomFormatService>()
+                  .Setup(v => v.All())
+                  .Returns(new List<CustomFormat>());
+        }
+
+        [TestCase("{Series Title:16}", "The Fantastic...")]
+        [TestCase("{Series TitleThe:17}", "Fantastic Life...")]
+        [TestCase("{Series CleanTitle:-13}", "...Mr. Sisko")]
+        public void should_truncate_series_title(string format, string expected)
+        {
+            _series.Title = "The Fantastic Life of Mr. Sisko";
+            _namingConfig.SeriesFolderFormat = format;
+
+            var result = Subject.GetSeriesFolder(_series, _namingConfig);
+            result.Should().Be(expected);
+        }
+    }
+}

src/NzbDrone.Core/Download/Clients/DownloadStation/Proxies/DownloadStationInfoProxy.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using NLog;
 using NzbDrone.Common.Cache;
 using NzbDrone.Common.Http;

src/NzbDrone.Core/Organizer/FileNameBuilder.cs

@@ -315,6 +315,7 @@ namespace NzbDrone.Core.Organizer
 
             folderName = CleanFolderName(folderName);
             folderName = ReplaceReservedDeviceNames(folderName);
+            folderName = folderName.Replace("{ellipsis}", "...");
 
             return folderName;
         }
@@ -337,6 +338,7 @@ namespace NzbDrone.Core.Organizer
 
             folderName = CleanFolderName(folderName);
             folderName = ReplaceReservedDeviceNames(folderName);
+            folderName = folderName.Replace("{ellipsis}", "...");
 
             return folderName;
         }
@@ -492,19 +494,19 @@ namespace NzbDrone.Core.Organizer
 
         private void AddSeriesTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, Series series)
         {
-            tokenHandlers["{Series Title}"] = m => series.Title;
-            tokenHandlers["{Series CleanTitle}"] = m => CleanTitle(series.Title);
-            tokenHandlers["{Series TitleYear}"] = m => TitleYear(series.Title, series.Year);
-            tokenHandlers["{Series CleanTitleYear}"] = m => CleanTitle(TitleYear(series.Title, series.Year));
-            tokenHandlers["{Series TitleWithoutYear}"] = m => TitleWithoutYear(series.Title);
-            tokenHandlers["{Series CleanTitleWithoutYear}"] = m => CleanTitle(TitleWithoutYear(series.Title));
-            tokenHandlers["{Series TitleThe}"] = m => TitleThe(series.Title);
-            tokenHandlers["{Series CleanTitleThe}"] = m => CleanTitleThe(series.Title);
-            tokenHandlers["{Series TitleTheYear}"] = m => TitleYear(TitleThe(series.Title), series.Year);
-            tokenHandlers["{Series CleanTitleTheYear}"] = m => CleanTitleTheYear(series.Title, series.Year);
-            tokenHandlers["{Series TitleTheWithoutYear}"] = m => TitleWithoutYear(TitleThe(series.Title));
-            tokenHandlers["{Series CleanTitleTheWithoutYear}"] = m => CleanTitleThe(TitleWithoutYear(series.Title));
-            tokenHandlers["{Series TitleFirstCharacter}"] = m => TitleFirstCharacter(TitleThe(series.Title));
+            tokenHandlers["{Series Title}"] = m => Truncate(series.Title, m.CustomFormat);
+            tokenHandlers["{Series CleanTitle}"] = m => Truncate(CleanTitle(series.Title), m.CustomFormat);
+            tokenHandlers["{Series TitleYear}"] = m => Truncate(TitleYear(series.Title, series.Year), m.CustomFormat);
+            tokenHandlers["{Series CleanTitleYear}"] = m => Truncate(CleanTitle(TitleYear(series.Title, series.Year)), m.CustomFormat);
+            tokenHandlers["{Series TitleWithoutYear}"] = m => Truncate(TitleWithoutYear(series.Title), m.CustomFormat);
+            tokenHandlers["{Series CleanTitleWithoutYear}"] = m => Truncate(CleanTitle(TitleWithoutYear(series.Title)), m.CustomFormat);
+            tokenHandlers["{Series TitleThe}"] = m => Truncate(TitleThe(series.Title), m.CustomFormat);
+            tokenHandlers["{Series CleanTitleThe}"] = m => Truncate(CleanTitleThe(series.Title), m.CustomFormat);
+            tokenHandlers["{Series TitleTheYear}"] = m => Truncate(TitleYear(TitleThe(series.Title), series.Year), m.CustomFormat);
+            tokenHandlers["{Series CleanTitleTheYear}"] = m => Truncate(CleanTitleTheYear(series.Title, series.Year), m.CustomFormat);
+            tokenHandlers["{Series TitleTheWithoutYear}"] = m => Truncate(TitleWithoutYear(TitleThe(series.Title)), m.CustomFormat);
+            tokenHandlers["{Series CleanTitleTheWithoutYear}"] = m => Truncate(CleanTitleThe(TitleWithoutYear(series.Title)), m.CustomFormat);
+            tokenHandlers["{Series TitleFirstCharacter}"] = m => Truncate(TitleFirstCharacter(TitleThe(series.Title)), m.CustomFormat);
             tokenHandlers["{Series Year}"] = m => series.Year.ToString();
         }
 
@@ -659,15 +661,15 @@ namespace NzbDrone.Core.Organizer
 
         private void AddEpisodeTitleTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, List<Episode> episodes, int maxLength)
         {
-            tokenHandlers["{Episode Title}"] = m => GetEpisodeTitle(GetEpisodeTitles(episodes), "+", maxLength);
-            tokenHandlers["{Episode CleanTitle}"] = m => GetEpisodeTitle(GetEpisodeTitles(episodes).Select(CleanTitle).ToList(), "and", maxLength);
+            tokenHandlers["{Episode Title}"] = m => GetEpisodeTitle(GetEpisodeTitles(episodes), "+", maxLength, m.CustomFormat);
+            tokenHandlers["{Episode CleanTitle}"] = m => GetEpisodeTitle(GetEpisodeTitles(episodes).Select(CleanTitle).ToList(), "and", maxLength, m.CustomFormat);
         }
 
         private void AddEpisodeFileTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, EpisodeFile episodeFile, bool useCurrentFilenameAsFallback)
         {
             tokenHandlers["{Original Title}"] = m => GetOriginalTitle(episodeFile, useCurrentFilenameAsFallback);
             tokenHandlers["{Original Filename}"] = m => GetOriginalFileName(episodeFile, useCurrentFilenameAsFallback);
-            tokenHandlers["{Release Group}"] = m => episodeFile.ReleaseGroup ?? m.DefaultValue("Sonarr");
+            tokenHandlers["{Release Group}"] = m => Truncate(episodeFile.ReleaseGroup, m.CustomFormat) ?? m.DefaultValue("Sonarr");
         }
 
         private void AddQualityTokens(Dictionary<string, Func<TokenMatch, string>> tokenHandlers, Series series, EpisodeFile episodeFile)
@@ -1046,8 +1048,15 @@ namespace NzbDrone.Core.Organizer
             return titles;
         }
 
-        private string GetEpisodeTitle(List<string> titles, string separator, int maxLength)
+        private string GetEpisodeTitle(List<string> titles, string separator, int maxLength, string formatter)
         {
+            var maxFormatterLength = GetMaxLengthFromFormatter(formatter);
+
+            if (maxFormatterLength > 0)
+            {
+                maxLength = Math.Min(maxLength, maxFormatterLength);
+            }
+
             separator = $" {separator.Trim()} ";
 
             var joined = string.Join(separator, titles);
@@ -1144,6 +1153,7 @@ namespace NzbDrone.Core.Organizer
             var tokenHandlers = new Dictionary<string, Func<TokenMatch, string>>(FileNameBuilderTokenEqualityComparer.Instance);
             tokenHandlers["{Episode Title}"] = m => string.Empty;
             tokenHandlers["{Episode CleanTitle}"] = m => string.Empty;
+            tokenHandlers["{ellipsis}"] = m => "...";
 
             var result = ReplaceTokens(pattern, tokenHandlers, namingConfig);
 
@@ -1202,6 +1212,30 @@ namespace NzbDrone.Core.Organizer
 
             return result.TrimStart(' ', '.').TrimEnd(' ');
         }
+
+        private string Truncate(string input, string formatter)
+        {
+            var maxLength = GetMaxLengthFromFormatter(formatter);
+
+            if (maxLength == 0 || input.Length <= Math.Abs(maxLength))
+            {
+                return input;
+            }
+
+            if (maxLength < 0)
+            {
+                return $"{{ellipsis}}{input.Reverse().Truncate(Math.Abs(maxLength) - 3).TrimEnd(' ', '.').Reverse()}";
+            }
+
+            return $"{input.Truncate(maxLength - 3).TrimEnd(' ', '.')}{{ellipsis}}";
+        }
+
+        private int GetMaxLengthFromFormatter(string formatter)
+        {
+            int.TryParse(formatter, out var maxCustomLength);
+
+            return maxCustomLength;
+        }
     }
 
     internal sealed class TokenMatch