refactor: make methods static where instance data not used (S2325)

~243 methods converted to static where they don't access instance data.
Fixed call sites that needed to use type name instead of instance.

src/NzbDrone.Common.Test/DiskTests/DiskTransferServiceFixture.cs

@@ -922,7 +922,7 @@ private void WithMockMount(string root)
                 .Returns(mock.Object);
         }
 
-        private void VerifyCopyFolder(string source, string destination)
+        private static void VerifyCopyFolder(string source, string destination)
         {
             var sourceFiles = Directory.GetFileSystemEntries(source, "*", SearchOption.AllDirectories).Select(v => v.Substring(source.Length + 1)).ToArray();
             var destFiles = Directory.GetFileSystemEntries(destination, "*", SearchOption.AllDirectories).Select(v => v.Substring(destination.Length + 1)).ToArray();
@@ -930,7 +930,7 @@ private void VerifyCopyFolder(string source, string destination)
             CollectionAssert.AreEquivalent(sourceFiles, destFiles);
         }
 
-        private void VerifyMoveFolder(string source, string from, string destination)
+        private static void VerifyMoveFolder(string source, string from, string destination)
         {
             Directory.Exists(from).Should().BeFalse();
 

src/NzbDrone.Common.Test/InstrumentationTests/SentryTargetFixture.cs

@@ -47,7 +47,7 @@ public void Setup()
             _subject = new SentryTarget("https://aaaaaaaaaaaaaaaaaaaaaaaaaa@sentry.io/111111", Mocker.GetMock<IAppFolderInfo>().Object);
         }
 
-        private LogEventInfo GivenLogEvent(LogLevel level, Exception ex, string message)
+        private static LogEventInfo GivenLogEvent(LogLevel level, Exception ex, string message)
         {
             return LogEventInfo.Create(level, "SentryTest", ex, CultureInfo.InvariantCulture, message);
         }

src/NzbDrone.Common.Test/PathExtensionFixture.cs

@@ -17,7 +17,7 @@ public class PathExtensionFixture : TestBase
     {
         private string _parent = @"C:\Test".AsOsAgnostic();
 
-        private IAppFolderInfo GetIAppDirectoryInfo()
+        private static IAppFolderInfo GetIAppDirectoryInfo()
         {
             var fakeEnvironment = new Mock<IAppFolderInfo>();
 

src/NzbDrone.Common/ArchiveService.cs

@@ -189,7 +189,7 @@ private void ExtractZip(string compressedFile, string destination)
             }
         }
 
-        private void ExtractTgz(string compressedFile, string destination)
+        private static void ExtractTgz(string compressedFile, string destination)
         {
             Stream inStream = File.OpenRead(compressedFile);
             Stream gzipStream = new GZipInputStream(inStream);

src/NzbDrone.Common/Disk/DiskProviderBase.cs

@@ -539,7 +539,7 @@ public virtual IMount GetMount(string path)
             }
         }
 
-        protected List<DriveInfo> GetDriveInfoMounts()
+        protected static List<DriveInfo> GetDriveInfoMounts()
         {
             return DriveInfo.GetDrives()
                             .Where(d => d.IsReady)

src/NzbDrone.Common/Disk/DiskTransferService.cs

@@ -464,7 +464,7 @@ private void RollbackCopy(string sourcePath, string targetPath)
             }
         }
 
-        private void WaitForIO()
+        private static void WaitForIO()
         {
             // This delay is intended to give the IO stack a bit of time to recover, this is especially required if remote NAS devices are involved.
             Thread.Sleep(3000);

src/NzbDrone.Common/Http/HttpClient.cs

@@ -377,7 +377,7 @@ public HttpResponse<T> Post<T>(HttpRequest request)
             return Task.Run(() => PostAsync<T>(request)).GetAwaiter().GetResult();
         }
 
-        private void CheckResponseContentType(HttpResponse response)
+        private static void CheckResponseContentType(HttpResponse response)
         {
             if (response.Headers.ContentType != null && response.Headers.ContentType.Contains("text/html"))
             {

src/NzbDrone.Common/Http/JsonRpcRequestBuilder.cs

@@ -73,7 +73,7 @@ protected override void Apply(HttpRequest request)
             }
         }
 
-        private void ConvertParameter(object value, out object data, out string summary)
+        private static void ConvertParameter(object value, out object data, out string summary)
         {
             if (value is byte[])
             {
@@ -92,7 +92,7 @@ private void ConvertParameter(object value, out object data, out string summary)
             }
         }
 
-        public string CreateNextId()
+        public static string CreateNextId()
         {
             return Guid.NewGuid().ToString().Substring(0, 8);
         }

src/NzbDrone.Common/Http/Proxy/ManagedWebProxyFactory.cs

@@ -47,7 +47,7 @@ private IWebProxy CreateWebProxy(HttpProxySettings proxySettings)
             }
         }
 
-        private Uri GetProxyUri(HttpProxySettings proxySettings)
+        private static Uri GetProxyUri(HttpProxySettings proxySettings)
         {
             switch (proxySettings.Type)
             {

src/NzbDrone.Common/Instrumentation/CleansingJsonVisitor.cs

@@ -34,7 +34,7 @@ public override void Visit(JProperty property)
             }
         }
 
-        private JValue CleanseValue(JValue value)
+        private static JValue CleanseValue(JValue value)
         {
             var text = value.Value<string>();
             var cleansed = CleanseLogMessage.Cleanse(text);

src/NzbDrone.Common/Instrumentation/InitializeLogger.cs

@@ -19,7 +19,7 @@ public void Initialize()
             var sentryTarget = LogManager.Configuration.AllTargets.OfType<SentryTarget>().FirstOrDefault();
             if (sentryTarget != null)
             {
-                sentryTarget.UpdateScope(_osInfo);
+                SentryTarget.UpdateScope(_osInfo);
             }
         }
     }

src/NzbDrone.Common/Instrumentation/Sentry/SentryTarget.cs

@@ -175,7 +175,7 @@ public void InitializeScope()
             });
         }
 
-        public void UpdateScope(IOsInfo osInfo)
+        public static void UpdateScope(IOsInfo osInfo)
         {
             SentrySdk.ConfigureScope(scope =>
             {
@@ -183,7 +183,7 @@ public void UpdateScope(IOsInfo osInfo)
             });
         }
 
-        public void UpdateScope(Version databaseVersion, int migration, string updateBranch, IPlatformInfo platformInfo)
+        public static void UpdateScope(Version databaseVersion, int migration, string updateBranch, IPlatformInfo platformInfo)
         {
             SentrySdk.ConfigureScope(scope =>
             {

src/NzbDrone.Core.Test/Datastore/Migration/147_custom_formatsFixture.cs

@@ -132,7 +132,7 @@ private void ShouldHaveAddedDefaultFormat(IDirectDataMapper db)
             }
         }
 
-        private List<Profile147> QueryItems(IDirectDataMapper db)
+        private static List<Profile147> QueryItems(IDirectDataMapper db)
         {
             var test = db.Query("SELECT * FROM \"Profiles\"");
 

src/NzbDrone.Core.Test/Datastore/Migration/149_regex_required_tagsFixture.cs

@@ -75,7 +75,7 @@ public void should_correctly_convert_multiple_formats()
             convertedTags2.Should().BeEquivalentTo("E_NRXRQ_Director");
         }
 
-        private List<CustomFormatTest149> QueryItems(IDirectDataMapper db)
+        private static List<CustomFormatTest149> QueryItems(IDirectDataMapper db)
         {
             var items = db.Query<CustomFormatTest149>("SELECT \"Name\", \"FormatTags\" FROM \"CustomFormats\"");
 

src/NzbDrone.Core.Test/Datastore/Migration/150_fix_format_tags_double_underscoreFixture.cs

@@ -38,7 +38,7 @@ public void should_correctly_convert_format_tag(string original, string converte
             convertedTags.First().Should().BeEquivalentTo(converted);
         }
 
-        private List<regex_required_tagsFixture.CustomFormatTest149> QueryItems(IDirectDataMapper db)
+        private static List<regex_required_tagsFixture.CustomFormatTest149> QueryItems(IDirectDataMapper db)
         {
             var items = db.Query<regex_required_tagsFixture.CustomFormatTest149>("SELECT \"Name\", \"FormatTags\" FROM \"CustomFormats\"");
 

src/NzbDrone.Core.Test/Datastore/Migration/159_add_webrip_qualitiesFixture.cs

@@ -10,12 +10,12 @@ namespace NzbDrone.Core.Test.Datastore.Migration
     [TestFixture]
     public class add_webrip_qualitesFixture : MigrationTest<add_webrip_qualites>
     {
-        private string GenerateQualityJson(int quality, bool allowed)
+        private static string GenerateQualityJson(int quality, bool allowed)
         {
             return $"{{ \"quality\": {quality}, \"allowed\": {allowed.ToString().ToLowerInvariant()} }}";
         }
 
-        private string GenerateQualityGroupJson(int quality, bool allowed, string groupname, int group)
+        private static string GenerateQualityGroupJson(int quality, bool allowed, string groupname, int group)
         {
             return $"{{\"id\": {group}, \"name\": \"{groupname}\", \"items\": [ {{ \"quality\": {quality}, \"allowed\": {allowed.ToString().ToLowerInvariant()} }} ] }}";
         }

src/NzbDrone.Core.Test/Datastore/Migration/168_custom_format_rework.cs

@@ -107,7 +107,7 @@ public void should_convert_custom_format_row_with_two_specs()
             json.Should().Contain($"\"name\": \"Edition 1\"");
         }
 
-        private void ValidateFormatTag(string json, string type, bool required, bool negated)
+        private static void ValidateFormatTag(string json, string type, bool required, bool negated)
         {
             json.Should().Contain($"\"type\": \"{type}\"");
 

src/NzbDrone.Core.Test/Datastore/WhereBuilderPostgresFixture.cs

@@ -22,12 +22,12 @@ public void MapTables()
             Mocker.Resolve<DbFactory>();
         }
 
-        private WhereBuilderPostgres Where(Expression<Func<Movie, bool>> filter)
+        private static WhereBuilderPostgres Where(Expression<Func<Movie, bool>> filter)
         {
             return new WhereBuilderPostgres(filter, true, 0);
         }
 
-        private WhereBuilderPostgres WhereMeta(Expression<Func<MovieMetadata, bool>> filter)
+        private static WhereBuilderPostgres WhereMeta(Expression<Func<MovieMetadata, bool>> filter)
         {
             return new WhereBuilderPostgres(filter, true, 0);
         }

src/NzbDrone.Core.Test/Datastore/WhereBuilderSqliteFixture.cs

@@ -22,12 +22,12 @@ public void MapTables()
             Mocker.Resolve<DbFactory>();
         }
 
-        private WhereBuilderSqlite Where(Expression<Func<Movie, bool>> filter)
+        private static WhereBuilderSqlite Where(Expression<Func<Movie, bool>> filter)
         {
             return new WhereBuilderSqlite(filter, true, 0);
         }
 
-        private WhereBuilderSqlite WhereMeta(Expression<Func<MovieMetadata, bool>> filter)
+        private static WhereBuilderSqlite WhereMeta(Expression<Func<MovieMetadata, bool>> filter)
         {
             return new WhereBuilderSqlite(filter, true, 0);
         }

src/NzbDrone.Core.Test/Download/DownloadApprovedReportsTests/DownloadApprovedFixture.cs

@@ -31,7 +31,7 @@ public void SetUp()
                 .Returns<List<DownloadDecision>>(v => v);
         }
 
-        private Movie GetMovie(int id)
+        private static Movie GetMovie(int id)
         {
             return Builder<Movie>.CreateNew()
                             .With(e => e.Id = id)

src/NzbDrone.Core.Test/Framework/DirectDataMapper.cs

@@ -73,7 +73,7 @@ protected Dictionary<string, object> MapToDictionary(DataRow dataRow)
             return item;
         }
 
-        protected T MapToObject<T>(DataRow dataRow)
+        protected static T MapToObject<T>(DataRow dataRow)
             where T : new()
         {
             var item = new T();

src/NzbDrone.Core.Test/Http/HttpProxySettingsProviderFixture.cs

@@ -11,7 +11,7 @@ namespace NzbDrone.Core.Test.Http
     [Platform(Exclude = "MacOsX")]
     public class HttpProxySettingsProviderFixture : TestBase<HttpProxySettingsProvider>
     {
-        private HttpProxySettings GetProxySettings()
+        private static HttpProxySettings GetProxySettings()
         {
             return new HttpProxySettings(ProxyType.Socks5, "localhost", 8080, "*.httpbin.org,google.com,172.16.0.0/12", true, null, null);
         }
@@ -24,7 +24,7 @@ public void should_bypass_proxy(string url)
         {
             var settings = GetProxySettings();
 
-            Subject.ShouldProxyBeBypassed(settings, new HttpUri(url)).Should().BeTrue();
+            HttpProxySettingsProvider.ShouldProxyBeBypassed(settings, new HttpUri(url)).Should().BeTrue();
         }
 
         [TestCase("http://bing.com/get")]
@@ -33,7 +33,7 @@ public void should_not_bypass_proxy(string url)
         {
             var settings = GetProxySettings();
 
-            Subject.ShouldProxyBeBypassed(settings, new HttpUri(url)).Should().BeFalse();
+            HttpProxySettingsProvider.ShouldProxyBeBypassed(settings, new HttpUri(url)).Should().BeFalse();
         }
     }
 }

src/NzbDrone.Core.Test/ImportListTests/CouchPotato/CouchPotatoParserFixture.cs

@@ -11,7 +11,7 @@ namespace NzbDrone.Core.Test.ImportList.CouchPotato
 {
     public class CouchPotatoTest : CoreTest<CouchPotatoParser>
     {
-        private ImportListResponse CreateResponse(string url, string content)
+        private static ImportListResponse CreateResponse(string url, string content)
         {
             var httpRequest = new HttpRequest(url);
             var httpResponse = new HttpResponse(httpRequest, new HttpHeader(), Encoding.UTF8.GetBytes(content));

src/NzbDrone.Core.Test/ImportListTests/Plex/PlexParserFixture.cs

@@ -12,7 +12,7 @@ namespace NzbDrone.Core.Test.ImportList.Plex
     [TestFixture]
     public class PlexParserFixture : CoreTest<PlexParser>
     {
-        private ImportListResponse CreateResponse(string url, string content)
+        private static ImportListResponse CreateResponse(string url, string content)
         {
             var httpRequest = new HttpRequest(url);
             var httpResponse = new HttpResponse(httpRequest, new HttpHeader(), Encoding.UTF8.GetBytes(content));

src/NzbDrone.Core.Test/ImportListTests/RSSImportParserFixture.cs

@@ -11,7 +11,7 @@ namespace NzbDrone.Core.Test.ImportList
 {
     public class RSSImportTest : CoreTest<RSSImportParser>
     {
-        private ImportListResponse CreateResponse(string url, string content)
+        private static ImportListResponse CreateResponse(string url, string content)
         {
             var httpRequest = new HttpRequest(url);
             var httpResponse = new HttpResponse(httpRequest, new HttpHeader(), Encoding.UTF8.GetBytes(content));

src/NzbDrone.Core.Test/IndexerTests/BasicRssParserFixture.cs

@@ -37,7 +37,7 @@ public void should_not_parse_size(string sizeString)
             result.Should().Be(0);
         }
 
-        private IndexerResponse CreateResponse(string url, string content)
+        private static IndexerResponse CreateResponse(string url, string content)
         {
             var httpRequest = new HttpRequest(url);
             var httpResponse = new HttpResponse(httpRequest, new HttpHeader(), Encoding.UTF8.GetBytes(content));

src/NzbDrone.Core.Test/IndexerTests/IntegrationTests/IndexerIntegrationTests.cs

@@ -42,7 +42,7 @@ private void ValidateTorrentResult(IList<ReleaseInfo> reports, bool hasSize = fa
             }
         }
 
-        private void ValidateResult(IList<ReleaseInfo> reports, bool hasSize = false, bool hasInfoUrl = false)
+        private static void ValidateResult(IList<ReleaseInfo> reports, bool hasSize = false, bool hasInfoUrl = false)
         {
             reports.Should().NotBeEmpty();
             reports.Should().OnlyContain(c => c.Title.IsNotNullOrWhiteSpace());

src/NzbDrone.Core.Test/IndexerTests/TorrentRssIndexerTests/TestTorrentRssIndexer.cs

@@ -29,7 +29,7 @@ public List<ValidationFailure> TestPublic()
         /// <summary>
         /// Code to quickly debug unit tests
         /// </summary>
-        private void SetupNLog()
+        private static void SetupNLog()
         {
             // Step 1. Create configuration object
             var config = new LoggingConfiguration();

src/NzbDrone.Core.Test/Messaging/Commands/CommandEqualityComparerFixture.cs

@@ -19,7 +19,7 @@ namespace NzbDrone.Core.Test.Messaging.Commands
     [TestFixture]
     public class CommandEqualityComparerFixture
     {
-        private string GivenRandomPath()
+        private static string GivenRandomPath()
         {
             return Path.Combine(@"C:\Tesst\", Guid.NewGuid().ToString()).AsOsAgnostic();
         }

src/NzbDrone.Core.Test/MetadataSource/SkyHook/SkyHookProxyFixture.cs

@@ -30,7 +30,7 @@ public void should_be_able_to_get_movie_detail(int tmdbId, string title)
             details.Title.Should().Be(title);
         }
 
-        private void ValidateMovie(MovieMetadata movie)
+        private static void ValidateMovie(MovieMetadata movie)
         {
             movie.Should().NotBeNull();
             movie.Title.Should().NotBeNullOrWhiteSpace();

src/NzbDrone.Core.Test/ParserTests/QualityParserFixture.cs

@@ -515,7 +515,7 @@ public void should_be_able_to_parse_repack(string title, bool isRepack, int vers
             result.Revision.IsRepack.Should().Be(isRepack);
         }
 
-        private void ParseAndVerifyQuality(string title, QualitySource source, bool proper, Resolution resolution, Modifier modifier = Modifier.NONE)
+        private static void ParseAndVerifyQuality(string title, QualitySource source, bool proper, Resolution resolution, Modifier modifier = Modifier.NONE)
         {
             var result = QualityParser.ParseQuality(title);
             if (resolution != Resolution.Unknown)

src/NzbDrone.Core/Authentication/UserService.cs

@@ -133,7 +133,7 @@ private User SetUserHashedPassword(User user, string password)
             return user;
         }
 
-        private byte[] GenerateSalt()
+        private static byte[] GenerateSalt()
         {
             var salt = new byte[SALT_SIZE];
             RandomNumberGenerator.Create().GetBytes(salt);
@@ -141,7 +141,7 @@ private byte[] GenerateSalt()
             return salt;
         }
 
-        private string GetHashedPassword(string password, byte[] salt, int iterations)
+        private static string GetHashedPassword(string password, byte[] salt, int iterations)
         {
             return Convert.ToBase64String(KeyDerivation.Pbkdf2(
                 password: password,

src/NzbDrone.Core/Blocklisting/BlocklistService.cs

@@ -139,7 +139,7 @@ private bool SameTorrent(Blocklist item, TorrentInfo release)
             return HasSameIndexer(item, release.Indexer);
         }
 
-        private bool HasSameIndexer(Blocklist item, string indexer)
+        private static bool HasSameIndexer(Blocklist item, string indexer)
         {
             if (item.Indexer.IsNullOrWhiteSpace())
             {
@@ -149,7 +149,7 @@ private bool HasSameIndexer(Blocklist item, string indexer)
             return item.Indexer.Equals(indexer, StringComparison.InvariantCultureIgnoreCase);
         }
 
-        private bool HasSamePublishedDate(Blocklist item, DateTime publishedDate)
+        private static bool HasSamePublishedDate(Blocklist item, DateTime publishedDate)
         {
             if (!item.PublishedDate.HasValue)
             {
@@ -160,7 +160,7 @@ private bool HasSamePublishedDate(Blocklist item, DateTime publishedDate)
                    item.PublishedDate.Value.AddMinutes(2) >= publishedDate;
         }
 
-        private bool HasSameSize(Blocklist item, long size)
+        private static bool HasSameSize(Blocklist item, long size)
         {
             if (!item.Size.HasValue)
             {

src/NzbDrone.Core/Configuration/ConfigFileProvider.cs

@@ -477,7 +477,7 @@ private void SaveConfigFile(XDocument xDoc)
             }
         }
 
-        private string GenerateApiKey()
+        private static string GenerateApiKey()
         {
             return Guid.NewGuid().ToString().Replace("-", "");
         }

src/NzbDrone.Core/Datastore/BasicRepository.cs

@@ -433,7 +433,7 @@ public virtual PagingSpec<TModel> GetPaged(PagingSpec<TModel> pagingSpec)
             return pagingSpec;
         }
 
-        protected void AddFilters(SqlBuilder builder, PagingSpec<TModel> pagingSpec)
+        protected static void AddFilters(SqlBuilder builder, PagingSpec<TModel> pagingSpec)
         {
             var filters = pagingSpec.FilterExpressions;
 

src/NzbDrone.Core/Datastore/Converters/AutoTagSpecificationConverter.cs

@@ -77,7 +77,7 @@ public override List<IAutoTaggingSpecification> Read(ref Utf8JsonReader reader,
         }
 
         // Helper function for validating where you are in the JSON
-        private void ValidateToken(Utf8JsonReader reader, JsonTokenType tokenType)
+        private static void ValidateToken(Utf8JsonReader reader, JsonTokenType tokenType)
         {
             if (reader.TokenType != tokenType)
             {

src/NzbDrone.Core/Datastore/Converters/CustomFormatSpecificationConverter.cs

@@ -76,7 +76,7 @@ public override List<ICustomFormatSpecification> Read(ref Utf8JsonReader reader,
         }
 
         // Helper function for validating where you are in the JSON
-        private void ValidateToken(Utf8JsonReader reader, JsonTokenType tokenType)
+        private static void ValidateToken(Utf8JsonReader reader, JsonTokenType tokenType)
         {
             if (reader.TokenType != tokenType)
             {

src/NzbDrone.Core/Datastore/ExpressionVisitor.cs

@@ -140,7 +140,7 @@ protected virtual Expression VisitLamda(LambdaExpression lambdaExpression)
             return lambdaExpression;
         }
 
-        private Expression VisitParameter(ParameterExpression expression)
+        private static Expression VisitParameter(ParameterExpression expression)
         {
             return expression;
         }

src/NzbDrone.Core/Datastore/Migration/109_add_movie_formats_to_naming_config.cs

@@ -15,7 +15,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertConfig);
         }
 
-        private void ConvertConfig(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertConfig(IDbConnection conn, IDbTransaction tran)
         {
             using (var namingConfigCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/115_update_movie_sorttitle.cs

@@ -13,7 +13,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(SetSortTitles);
         }
 
-        private void SetSortTitles(IDbConnection conn, IDbTransaction tran)
+        private static void SetSortTitles(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/116_update_movie_sorttitle_again.cs

@@ -12,7 +12,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(SetSortTitles);
         }
 
-        private void SetSortTitles(IDbConnection conn, IDbTransaction tran)
+        private static void SetSortTitles(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/117_update_movie_file.cs

@@ -14,7 +14,7 @@ protected override void MainDbUpgrade()
             // Execute.WithConnection(SetSortTitles);
         }
 
-        private void SetSortTitles(IDbConnection conn, IDbTransaction tran)
+        private static void SetSortTitles(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/118_update_movie_slug.cs

@@ -12,7 +12,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(SetTitleSlug);
         }
 
-        private void SetTitleSlug(IDbConnection conn, IDbTransaction tran)
+        private static void SetTitleSlug(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/121_update_filedate_config.cs

@@ -14,7 +14,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(SetTitleSlug);
         }
 
-        private void SetTitleSlug(IDbConnection conn, IDbTransaction tran)
+        private static void SetTitleSlug(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/125_fix_imdb_unique.cs

@@ -12,7 +12,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(DeleteUniqueIndex);
         }
 
-        private void DeleteUniqueIndex(IDbConnection conn, IDbTransaction tran)
+        private static void DeleteUniqueIndex(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/126_update_qualities_and_profiles.cs

@@ -15,7 +15,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertProfile);
         }
 
-        private void ConvertProfile(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertProfile(IDbConnection conn, IDbTransaction tran)
         {
             var updater = new ProfileUpdater125(conn, tran);
             updater.SplitQualityAppend(0, 27); // TELECINE AFTER Unknown

src/NzbDrone.Core/Datastore/Migration/134_add_remux_qualities_for_the_wankers.cs

@@ -12,7 +12,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertProfile);
         }
 
-        private void ConvertProfile(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertProfile(IDbConnection conn, IDbTransaction tran)
         {
             var updater = new ProfileUpdater125(conn, tran);
             updater.SplitQualityAppend(19, 31); // Remux2160p    AFTER     Bluray2160p

src/NzbDrone.Core/Datastore/Migration/137_add_import_exclusions_table.cs

@@ -24,7 +24,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(AddExisting);
         }
 
-        private void AddExisting(IDbConnection conn, IDbTransaction tran)
+        private static void AddExisting(IDbConnection conn, IDbTransaction tran)
         {
             using (var getSeriesCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/139_fix_indexer_baseurl.cs

@@ -15,7 +15,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(RenameUrlToBaseUrl);
         }
 
-        private void RenameUrlToBaseUrl(IDbConnection conn, IDbTransaction tran)
+        private static void RenameUrlToBaseUrl(IDbConnection conn, IDbTransaction tran)
         {
             using (var cmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/141_fix_duplicate_alt_titles.cs

@@ -13,7 +13,7 @@ protected override void MainDbUpgrade()
             Alter.Table("AlternativeTitles").AlterColumn("CleanTitle").AsString().Unique();
         }
 
-        private void RemoveDuplicateAlternateTitles(IDbConnection conn, IDbTransaction tran)
+        private static void RemoveDuplicateAlternateTitles(IDbConnection conn, IDbTransaction tran)
         {
             using (var cmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/149_convert_regex_required_tags.cs

@@ -18,7 +18,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertExistingFormatTags);
         }
 
-        private void ConvertExistingFormatTags(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertExistingFormatTags(IDbConnection conn, IDbTransaction tran)
         {
             var updater = new CustomFormatUpdater149(conn, tran);
 

src/NzbDrone.Core/Datastore/Migration/150_fix_format_tags_double_underscore.cs

@@ -15,7 +15,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertExistingFormatTags);
         }
 
-        private void ConvertExistingFormatTags(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertExistingFormatTags(IDbConnection conn, IDbTransaction tran)
         {
             var updater = new CustomFormatUpdater149(conn, tran);
 

src/NzbDrone.Core/Datastore/Migration/156_add_download_client_priority.cs

@@ -22,7 +22,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(InitPriorityForBackwardCompatibility);
         }
 
-        private void InitPriorityForBackwardCompatibility(IDbConnection conn, IDbTransaction tran)
+        private static void InitPriorityForBackwardCompatibility(IDbConnection conn, IDbTransaction tran)
         {
             var downloadClients = conn.Query<DownloadClients156>($"SELECT \"Id\", \"Implementation\" FROM \"DownloadClients\" WHERE \"Enable\"");
 

src/NzbDrone.Core/Datastore/Migration/159_add_webrip_qualities.cs

@@ -16,7 +16,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertProfile);
         }
 
-        private void ConvertProfile(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertProfile(IDbConnection conn, IDbTransaction tran)
         {
             var updater = new ProfileUpdater159(conn, tran);
 

src/NzbDrone.Core/Datastore/Migration/165_remove_custom_formats_from_quality_model.cs

@@ -80,7 +80,7 @@ private void FixPendingReleases(IDbConnection conn, IDbTransaction tran)
             conn.Execute(sql, newRows, transaction: tran);
         }
 
-        private void RemoveCustomFormatFromQuality(IDbConnection conn, IDbTransaction tran, string table)
+        private static void RemoveCustomFormatFromQuality(IDbConnection conn, IDbTransaction tran, string table)
         {
             var rows = conn.Query<QualityRow>($"SELECT \"Id\", \"Quality\" from \"{table}\"");
 

src/NzbDrone.Core/Datastore/Migration/168_custom_format_rework.cs

@@ -114,7 +114,7 @@ private ICustomFormatSpecification InitializeSpecification(Match match)
             }
         }
 
-        private Resolution ParseResolution(string value)
+        private static Resolution ParseResolution(string value)
         {
             switch (value)
             {
@@ -133,7 +133,7 @@ private Resolution ParseResolution(string value)
             }
         }
 
-        private QualitySource ParseSource(string value)
+        private static QualitySource ParseSource(string value)
         {
             switch (value)
             {
@@ -158,7 +158,7 @@ private QualitySource ParseSource(string value)
             }
         }
 
-        private Modifier ParseModifier(string value)
+        private static Modifier ParseModifier(string value)
         {
             switch (value)
             {
@@ -177,7 +177,7 @@ private Modifier ParseModifier(string value)
             }
         }
 
-        private IndexerFlags ParseIndexerFlag(string value)
+        private static IndexerFlags ParseIndexerFlag(string value)
         {
             var flagValues = Enum.GetValues(typeof(IndexerFlags));
 
@@ -203,7 +203,7 @@ private IndexerFlags ParseIndexerFlag(string value)
             return (min, max);
         }
 
-        private string ParseString(string value, bool isRegex)
+        private static string ParseString(string value, bool isRegex)
         {
             return isRegex ? value : Regex.Escape(value);
         }

src/NzbDrone.Core/Datastore/Migration/172_add_download_history.cs

@@ -39,7 +39,7 @@ protected override void MainDbUpgrade()
             { 9, 4 } // MovieHistoryType.DownloadIgnored -> DownloadHistoryType.DownloadIgnored
         };
 
-        private void InitialImportedDownloadHistory(IDbConnection conn, IDbTransaction tran)
+        private static void InitialImportedDownloadHistory(IDbConnection conn, IDbTransaction tran)
         {
             using (var cmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/180_fix_invalid_profile_references.cs

@@ -63,7 +63,7 @@ private void FixMovies(IDbConnection conn, IDbTransaction tran)
             }
         }
 
-        private List<int> GetProfileIds(IDbConnection conn)
+        private static List<int> GetProfileIds(IDbConnection conn)
         {
             return conn.Query<QualityProfile180>("SELECT \"Id\" From \"Profiles\"").Select(p => p.Id).ToList();
         }

src/NzbDrone.Core/Datastore/Migration/183_download_propers_config.cs

@@ -14,7 +14,7 @@ protected override void MainDbUpgrade()
             Delete.Column("PreferredTags").FromTable("Profiles");
         }
 
-        private void SetMetadataFileExtension(IDbConnection conn, IDbTransaction tran)
+        private static void SetMetadataFileExtension(IDbConnection conn, IDbTransaction tran)
         {
             using (var cmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/186_fix_tmdb_duplicates.cs

@@ -18,7 +18,7 @@ protected override void MainDbUpgrade()
             Alter.Table("Movies").AlterColumn("TmdbId").AsInt32().Unique();
         }
 
-        private void FixMovies(IDbConnection conn, IDbTransaction tran)
+        private static void FixMovies(IDbConnection conn, IDbTransaction tran)
         {
             var movieRows = conn.Query<MovieEntity185>($"SELECT \"Id\", \"TmdbId\", \"Added\", \"LastInfoSync\", \"MovieFileId\" FROM \"Movies\"");
 

src/NzbDrone.Core/Datastore/Migration/187_swap_filechmod_for_folderchmod.cs

@@ -15,7 +15,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(ConvertFileChmodToFolderChmod);
         }
 
-        private void ConvertFileChmodToFolderChmod(IDbConnection conn, IDbTransaction tran)
+        private static void ConvertFileChmodToFolderChmod(IDbConnection conn, IDbTransaction tran)
         {
             using (var getFileChmodCmd = conn.CreateCommand())
             {

src/NzbDrone.Core/Datastore/Migration/199_mediainfo_to_ffmpeg.cs

@@ -276,7 +276,7 @@ private void MigrateVideoCodec(MediaInfo198 mediaInfo, MediaInfo199 m, string sc
             }
         }
 
-        private void MigrateVideoCodecLegacy(MediaInfo198 mediaInfo, MediaInfo199 m, string sceneName)
+        private static void MigrateVideoCodecLegacy(MediaInfo198 mediaInfo, MediaInfo199 m, string sceneName)
         {
             var videoCodec = mediaInfo.VideoCodec;
 
@@ -335,7 +335,7 @@ private void MigrateVideoCodecLegacy(MediaInfo198 mediaInfo, MediaInfo199 m, str
             }
         }
 
-        private HdrFormat MigrateHdrFormat(MediaInfo198 mediaInfo)
+        private static HdrFormat MigrateHdrFormat(MediaInfo198 mediaInfo)
         {
             if (mediaInfo.VideoHdrFormatCompatibility.IsNotNullOrWhiteSpace())
             {
@@ -531,7 +531,7 @@ private void MigrateAudioCodec(MediaInfo198 mediaInfo, MediaInfo199 m)
             }
         }
 
-        private void MigrateAudioCodecLegacy(MediaInfo198 mediaInfo, MediaInfo199 m)
+        private static void MigrateAudioCodecLegacy(MediaInfo198 mediaInfo, MediaInfo199 m)
         {
             var audioFormat = mediaInfo.AudioFormat;
 
@@ -617,7 +617,7 @@ private void MigrateAudioChannelPositions(MediaInfo198 mediaInfo, MediaInfo199 m
             m.AudioChannelPositions = audioChannels.ToString();
         }
 
-        private decimal? FormatAudioChannelsFromAudioChannelPositions(MediaInfo198 mediaInfo)
+        private static decimal? FormatAudioChannelsFromAudioChannelPositions(MediaInfo198 mediaInfo)
         {
             var audioChannelPositions = mediaInfo.AudioChannelPositions;
 
@@ -676,7 +676,7 @@ private void MigrateAudioChannelPositions(MediaInfo198 mediaInfo, MediaInfo199 m
             return null;
         }
 
-        private decimal? FormatAudioChannelsFromAudioChannelPositionsText(MediaInfo198 mediaInfo)
+        private static decimal? FormatAudioChannelsFromAudioChannelPositionsText(MediaInfo198 mediaInfo)
         {
             var audioChannelPositionsTextContainer = mediaInfo.AudioChannelPositionsTextContainer;
             var audioChannelPositionsTextStream = mediaInfo.AudioChannelPositionsTextStream;
@@ -706,7 +706,7 @@ private void MigrateAudioChannelPositions(MediaInfo198 mediaInfo, MediaInfo199 m
             return null;
         }
 
-        private decimal? FormatAudioChannelsFromAudioChannels(MediaInfo198 mediaInfo)
+        private static decimal? FormatAudioChannelsFromAudioChannels(MediaInfo198 mediaInfo)
         {
             var audioChannelsContainer = mediaInfo.AudioChannelsContainer;
             var audioChannelsStream = mediaInfo.AudioChannelsStream;
@@ -742,7 +742,7 @@ private void MigrateAudioChannelPositions(MediaInfo198 mediaInfo, MediaInfo199 m
             return null;
         }
 
-        private List<string> MigrateLanguages(string mediaInfoLanguages)
+        private static List<string> MigrateLanguages(string mediaInfoLanguages)
         {
             var languages = new List<string>();
 
@@ -788,12 +788,12 @@ private List<string> MigrateLanguages(string mediaInfoLanguages)
             return languages;
         }
 
-        private string MigratePrimaries(string primary)
+        private static string MigratePrimaries(string primary)
         {
             return primary.IsNotNullOrWhiteSpace() ? primary.Replace("BT.", "bt") : primary;
         }
 
-        private string MigrateTransferCharacteristics(string transferCharacteristics)
+        private static string MigrateTransferCharacteristics(string transferCharacteristics)
         {
             if (transferCharacteristics == "PQ")
             {

src/NzbDrone.Core/Datastore/Migration/200_cdh_per_downloadclient.cs

@@ -16,7 +16,7 @@ protected override void MainDbUpgrade()
             Execute.WithConnection(MoveRemoveSettings);
         }
 
-        private void MoveRemoveSettings(IDbConnection conn, IDbTransaction tran)
+        private static void MoveRemoveSettings(IDbConnection conn, IDbTransaction tran)
         {
             var removeCompletedDownloads = false;
             var removeFailedDownloads = true;

src/NzbDrone.Core/Datastore/WhereBuilderPostgres.cs

@@ -134,7 +134,7 @@ protected override Expression VisitConstant(ConstantExpression expression)
             return expression;
         }
 
-        private bool TryGetConstantValue(Expression expression, out object result)
+        private static bool TryGetConstantValue(Expression expression, out object result)
         {
             result = null;
 
@@ -207,7 +207,7 @@ private bool TryGetRightValue(Expression expression, out object value)
             return false;
         }
 
-        private object GetFieldValue(object entity, MemberInfo member)
+        private static object GetFieldValue(object entity, MemberInfo member)
         {
             if (member.MemberType == MemberTypes.Field)
             {

src/NzbDrone.Core/Datastore/WhereBuilderSqlite.cs

@@ -134,7 +134,7 @@ protected override Expression VisitConstant(ConstantExpression expression)
             return expression;
         }
 
-        private bool TryGetConstantValue(Expression expression, out object result)
+        private static bool TryGetConstantValue(Expression expression, out object result)
         {
             result = null;
 
@@ -207,7 +207,7 @@ private bool TryGetRightValue(Expression expression, out object value)
             return false;
         }
 
-        private object GetFieldValue(object entity, MemberInfo member)
+        private static object GetFieldValue(object entity, MemberInfo member)
         {
             if (member.MemberType == MemberTypes.Field)
             {

src/NzbDrone.Core/DecisionEngine/DownloadDecisionComparer.cs

@@ -43,7 +43,7 @@ public int Compare(DownloadDecision x, DownloadDecision y)
             return comparers.Select(comparer => comparer(x, y)).FirstOrDefault(result => result != 0);
         }
 
-        private int CompareBy<TSubject, TValue>(TSubject left, TSubject right, Func<TSubject, TValue> funcValue)
+        private static int CompareBy<TSubject, TValue>(TSubject left, TSubject right, Func<TSubject, TValue> funcValue)
             where TValue : IComparable<TValue>
         {
             var leftValue = funcValue(left);
@@ -58,7 +58,7 @@ private int CompareByReverse<TSubject, TValue>(TSubject left, TSubject right, Fu
             return CompareBy(left, right, funcValue) * -1;
         }
 
-        private int CompareAll(params int[] comparers)
+        private static int CompareAll(params int[] comparers)
         {
             return comparers.Select(comparer => comparer).FirstOrDefault(result => result != 0);
         }
@@ -186,7 +186,7 @@ private int CompareSize(DownloadDecision x, DownloadDecision y)
             return sizeCompare;
         }
 
-        private int ScoreFlags(IndexerFlags flags)
+        private static int ScoreFlags(IndexerFlags flags)
         {
             var flagValues = Enum.GetValues(typeof(IndexerFlags));
 

src/NzbDrone.Core/DecisionEngine/Specifications/UpgradableSpecification.cs

@@ -139,7 +139,7 @@ public bool QualityCutoffNotMet(QualityProfile profile, QualityModel currentQual
             return false;
         }
 
-        private bool CustomFormatCutoffNotMet(QualityProfile profile, List<CustomFormat> currentFormats)
+        private static bool CustomFormatCutoffNotMet(QualityProfile profile, List<CustomFormat> currentFormats)
         {
             var score = profile.CalculateCustomFormatScore(currentFormats);
             var cutoff = profile.UpgradeAllowed ? profile.CutoffFormatScore : profile.MinFormatScore;

src/NzbDrone.Core/Download/Clients/Aria2/Aria2.cs

@@ -261,7 +261,7 @@ private ValidationFailure TestConnection()
             return null;
         }
 
-        private string GetOutputPath(Aria2Status torrent)
+        private static string GetOutputPath(Aria2Status torrent)
         {
             if (torrent.Files.Length == 1)
             {

src/NzbDrone.Core/Download/Clients/Aria2/Aria2Proxy.cs

@@ -146,7 +146,7 @@ public bool RemoveCompletedTorrent(Aria2Settings settings, string gid)
             return result == "OK";
         }
 
-        private string GetToken(Aria2Settings settings)
+        private static string GetToken(Aria2Settings settings)
         {
             return $"token:{settings?.SecretToken}";
         }

src/NzbDrone.Core/Download/Clients/Deluge/DelugeProxy.cs

@@ -294,7 +294,7 @@ private JsonRpcResponse<TResult> ExecuteRequest<TResult>(JsonRpcRequestBuilder r
             }
         }
 
-        private void VerifyResponse<TResult>(JsonRpcResponse<TResult> response)
+        private static void VerifyResponse<TResult>(JsonRpcResponse<TResult> response)
         {
             if (response.Error != null)
             {
@@ -368,7 +368,7 @@ private void ConnectDaemon(JsonRpcRequestBuilder requestBuilder)
             throw new DownloadClientException("Failed to connect to Deluge daemon.");
         }
 
-        private DelugeTorrent[] GetTorrents(DelugeUpdateUIResult result)
+        private static DelugeTorrent[] GetTorrents(DelugeUpdateUIResult result)
         {
             if (result.Torrents == null)
             {

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

@@ -54,7 +54,7 @@ public DiskStationProxyBase(DiskStationApi apiType,
             _apiName = apiName;
         }
 
-        private string GenerateSessionCacheKey(DownloadStationSettings settings)
+        private static string GenerateSessionCacheKey(DownloadStationSettings settings)
         {
             return $"{settings.Username}@{settings.Host}:{settings.Port}";
         }
@@ -201,7 +201,7 @@ private HttpRequestBuilder BuildRequest(DownloadStationSettings settings, DiskSt
             return requestBuilder;
         }
 
-        private string GenerateInfoCacheKey(DownloadStationSettings settings, DiskStationApi api)
+        private static string GenerateInfoCacheKey(DownloadStationSettings settings, DiskStationApi api)
         {
             return $"{settings.Host}:{settings.Port}->{api}";
         }

src/NzbDrone.Core/Download/Clients/DownloadStation/TorrentDownloadStation.cs

@@ -215,7 +215,7 @@ protected override void Test(List<ValidationFailure> failures)
             failures.AddIfNotNull(TestGetTorrents());
         }
 
-        protected bool IsFinished(DownloadStationTask torrent)
+        protected static bool IsFinished(DownloadStationTask torrent)
         {
             return torrent.Status == DownloadStationTaskStatus.Finished;
         }
@@ -293,7 +293,7 @@ protected long GetRemainingSize(DownloadStationTask torrent)
             return TimeSpan.FromSeconds(remainingSize / downloadSpeed);
         }
 
-        protected double? GetSeedRatio(DownloadStationTask torrent)
+        protected static double? GetSeedRatio(DownloadStationTask torrent)
         {
             var downloaded = torrent.Additional.Transfer["size_downloaded"].ParseInt64();
             var uploaded = torrent.Additional.Transfer["size_uploaded"].ParseInt64();
@@ -427,12 +427,12 @@ protected ValidationFailure TestGetTorrents()
             }
         }
 
-        protected string ParseDownloadId(string id)
+        protected static string ParseDownloadId(string id)
         {
             return id.Split(':')[1];
         }
 
-        protected string CreateDownloadId(string id, string hashedSerialNumber)
+        protected static string CreateDownloadId(string id, string hashedSerialNumber)
         {
             return $"{hashedSerialNumber}:{id}";
         }

src/NzbDrone.Core/Download/Clients/DownloadStation/UsenetDownloadStation.cs

@@ -382,7 +382,7 @@ protected long GetDownloadSpeed(DownloadStationTask task)
             return Math.Max(downloadSpeed, 0);
         }
 
-        protected TimeSpan? GetRemainingTime(long remainingSize, long downloadSpeed)
+        protected static TimeSpan? GetRemainingTime(long remainingSize, long downloadSpeed)
         {
             if (downloadSpeed > 0)
             {
@@ -407,12 +407,12 @@ protected ValidationFailure TestGetNZB()
             }
         }
 
-        protected string ParseDownloadId(string id)
+        protected static string ParseDownloadId(string id)
         {
             return id.Split(':')[1];
         }
 
-        protected string CreateDownloadId(string id, string hashedSerialNumber)
+        protected static string CreateDownloadId(string id, string hashedSerialNumber)
         {
             return $"{hashedSerialNumber}:{id}";
         }

src/NzbDrone.Core/Download/Clients/Flood/FloodProxy.cs

@@ -35,7 +35,7 @@ public FloodProxy(IHttpClient httpClient, ICacheManager cacheManager, Logger log
             _authCookieCache = cacheManager.GetCache<Dictionary<string, string>>(GetType(), "authCookies");
         }
 
-        private string BuildUrl(FloodSettings settings)
+        private static string BuildUrl(FloodSettings settings)
         {
             return $"{(settings.UseSsl ? "https://" : "http://")}{settings.Host}:{settings.Port}/{settings.UrlBase}";
         }

src/NzbDrone.Core/Download/Clients/FreeboxDownload/TorrentFreeboxDownload.cs

@@ -221,7 +221,7 @@ private bool ToBeQueuedFirst(RemoteMovie remoteMovie)
             return false;
         }
 
-        private double? GetSeedRatio(RemoteMovie remoteMovie)
+        private static double? GetSeedRatio(RemoteMovie remoteMovie)
         {
             if (remoteMovie.SeedConfiguration == null || remoteMovie.SeedConfiguration.Ratio == null)
             {

src/NzbDrone.Core/Download/Clients/Hadouken/HadoukenProxy.cs

@@ -158,7 +158,7 @@ private HadoukenTorrent MapTorrent(object[] item)
             return torrent;
         }
 
-        private HadoukenTorrentState ParseState(int state)
+        private static HadoukenTorrentState ParseState(int state)
         {
             if ((state & 1) == 1)
             {

src/NzbDrone.Core/Download/Clients/NzbVortex/NzbVortexProxy.cs

@@ -113,7 +113,7 @@ public List<NzbVortexFile> GetFiles(int id, NzbVortexSettings settings)
             return response.Files;
         }
 
-        private HttpRequestBuilder BuildRequest(NzbVortexSettings settings)
+        private static HttpRequestBuilder BuildRequest(NzbVortexSettings settings)
         {
             var baseUrl = HttpRequestBuilder.BuildBaseUrl(true, settings.Host, settings.Port, settings.UrlBase);
             baseUrl = HttpUri.CombinePath(baseUrl, "api");

src/NzbDrone.Core/Download/Clients/Nzbget/Nzbget.cs

@@ -347,7 +347,7 @@ private ValidationFailure TestSettings()
         // Javascript doesn't support 64 bit integers natively so json officially doesn't either.
         // NzbGet api thus sends it in two 32 bit chunks. Here we join the two chunks back together.
         // Simplified decimal example: "42" splits into "4" and "2". To join them I shift (<<) the "4" 1 digit to the left = "40". combine it with "2". which becomes "42" again.
-        private long MakeInt64(uint high, uint low)
+        private static long MakeInt64(uint high, uint low)
         {
             long result = high;
 

src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrent.cs

@@ -409,7 +409,7 @@ public override DownloadClientInfo GetStatus()
             };
         }
 
-        private bool RemovesCompletedDownloads(QBittorrentPreferences config)
+        private static bool RemovesCompletedDownloads(QBittorrentPreferences config)
         {
             var minimumRetention = 60 * 24 * 14; // 14 days in minutes
             return (config.MaxRatioEnabled || (config.MaxSeedingTimeEnabled && config.MaxSeedingTime < minimumRetention)) && (config.MaxRatioAction == QBittorrentMaxRatioAction.Remove || config.MaxRatioAction == QBittorrentMaxRatioAction.DeleteFiles);
@@ -610,7 +610,7 @@ private ValidationFailure TestGetTorrents()
             return null;
         }
 
-        protected TimeSpan? GetRemainingTime(QBittorrentTorrent torrent)
+        protected static TimeSpan? GetRemainingTime(QBittorrentTorrent torrent)
         {
             if (torrent.Eta < 0 || torrent.Eta > 365 * 24 * 3600)
             {
@@ -715,7 +715,7 @@ protected bool HasReachedSeedingTimeLimit(QBittorrentTorrent torrent, QBittorren
             return false;
         }
 
-        protected bool HasReachedInactiveSeedingTimeLimit(QBittorrentTorrent torrent, QBittorrentPreferences config)
+        protected static bool HasReachedInactiveSeedingTimeLimit(QBittorrentTorrent torrent, QBittorrentPreferences config)
         {
             long inactiveSeedingTimeLimit;
 

src/NzbDrone.Core/Download/Clients/QBittorrent/QBittorrentProxyV2.cs

@@ -223,7 +223,7 @@ public Dictionary<string, QBittorrentLabel> GetLabels(QBittorrentSettings settin
             return Json.Deserialize<Dictionary<string, QBittorrentLabel>>(ProcessRequest(request, settings));
         }
 
-        private void AddTorrentSeedingFormParameters(HttpRequestBuilder request, TorrentSeedConfiguration seedConfiguration, bool always = false)
+        private static void AddTorrentSeedingFormParameters(HttpRequestBuilder request, TorrentSeedConfiguration seedConfiguration, bool always = false)
         {
             var ratioLimit = seedConfiguration.Ratio.HasValue ? seedConfiguration.Ratio : -2;
             var seedingTimeLimit = seedConfiguration.SeedTime.HasValue ? (long)seedConfiguration.SeedTime.Value.TotalMinutes : -2;

src/NzbDrone.Core/Download/Clients/Sabnzbd/Sabnzbd.cs

@@ -331,7 +331,7 @@ private bool HasVersion(int major, int minor, int patch = 0)
             return true;
         }
 
-        private Version ParseVersion(string version)
+        private static Version ParseVersion(string version)
         {
             if (version.IsNullOrWhiteSpace())
             {
@@ -520,7 +520,7 @@ private ValidationFailure TestCategory()
             return null;
         }
 
-        private bool ContainsCategory(IEnumerable<string> categories, string category)
+        private static bool ContainsCategory(IEnumerable<string> categories, string category)
         {
             if (categories == null || categories.Empty())
             {
@@ -535,7 +535,7 @@ private bool ContainsCategory(IEnumerable<string> categories, string category)
             return categories.Contains(category);
         }
 
-        private bool RemovesCompletedDownloads(SabnzbdConfig config)
+        private static bool RemovesCompletedDownloads(SabnzbdConfig config)
         {
             var retention = config.Misc.history_retention;
             var option = config.Misc.history_retention_option;
@@ -573,7 +573,7 @@ private bool RemovesCompletedDownloads(SabnzbdConfig config)
             return retention != "0";
         }
 
-        private bool ValidatePath(DownloadClientItem downloadClientItem)
+        private static bool ValidatePath(DownloadClientItem downloadClientItem)
         {
             var downloadItemOutputPath = downloadClientItem.OutputPath;
 

src/NzbDrone.Core/Download/Clients/Sabnzbd/SabnzbdProxy.cs

@@ -219,7 +219,7 @@ private string ProcessRequest(HttpRequestBuilder requestBuilder, SabnzbdSettings
             return response.Content;
         }
 
-        private void CheckForError(HttpResponse response)
+        private static void CheckForError(HttpResponse response)
         {
             if (!Json.TryDeserialize<SabnzbdJsonError>(response.Content, out var result))
             {

src/NzbDrone.Core/Download/Clients/Transmission/TransmissionBase.cs

@@ -142,7 +142,7 @@ public override IEnumerable<DownloadClientItem> GetItems()
             return items;
         }
 
-        protected bool HasReachedSeedLimit(TransmissionTorrent torrent, double? ratio, Lazy<TransmissionConfig> config)
+        protected static bool HasReachedSeedLimit(TransmissionTorrent torrent, double? ratio, Lazy<TransmissionConfig> config)
         {
             var isStopped = torrent.Status == TransmissionTorrentStatus.Stopped;
             var isSeeding = torrent.Status == TransmissionTorrentStatus.Seeding;

src/NzbDrone.Core/Download/Clients/Transmission/TransmissionProxy.cs

@@ -242,7 +242,7 @@ private TransmissionResponse GetTorrentStatus(IEnumerable<string> hashStrings, T
             return result;
         }
 
-        private string GetBaseUrl(TransmissionSettings settings)
+        private static string GetBaseUrl(TransmissionSettings settings)
         {
             return HttpRequestBuilder.BuildBaseUrl(settings.UseSsl, settings.Host, settings.Port, settings.UrlBase);
         }

src/NzbDrone.Core/Download/Clients/rTorrent/RTorrentProxy.cs

@@ -163,7 +163,7 @@ public bool HasHashTorrent(string hash, RTorrentSettings settings)
             }
         }
 
-        private string[] GetCommands(string label, RTorrentPriority priority, string directory)
+        private static string[] GetCommands(string label, RTorrentPriority priority, string directory)
         {
             var result = new List<string>();
 

src/NzbDrone.Core/Download/Clients/uTorrent/UTorrentProxy.cs

@@ -187,7 +187,7 @@ public void SetState(string hash, UTorrentState state, UTorrentSettings settings
             ProcessRequest(requestBuilder, settings);
         }
 
-        private HttpRequestBuilder BuildRequest(UTorrentSettings settings)
+        private static HttpRequestBuilder BuildRequest(UTorrentSettings settings)
         {
             var requestBuilder = new HttpRequestBuilder(settings.UseSsl, settings.Host, settings.Port, settings.UrlBase)
                 .Resource("/gui/")

src/NzbDrone.Core/Download/CompletedDownloadService.cs

@@ -282,7 +282,7 @@ private void SetImportItem(TrackedDownload trackedDownload)
             trackedDownload.ImportItem = _provideImportItemService.ProvideImportItem(trackedDownload.DownloadItem, trackedDownload.ImportItem);
         }
 
-        private bool ValidatePath(TrackedDownload trackedDownload)
+        private static bool ValidatePath(TrackedDownload trackedDownload)
         {
             var downloadItemOutputPath = trackedDownload.ImportItem.OutputPath;
 

src/NzbDrone.Core/Download/DownloadExtractionService.cs

@@ -132,7 +132,7 @@ private string ExtractArchivesInFolder(string folderPath)
             return folderPath;
         }
 
-        private bool IsPartOfMultiVolumeArchive(string path)
+        private static bool IsPartOfMultiVolumeArchive(string path)
         {
             var extension = Path.GetExtension(path);
 
@@ -170,7 +170,7 @@ private void DeleteArchiveWithParts(string archivePath)
             _diskProvider.DeleteFile(archivePath);
         }
 
-        private bool IsArchivePartFile(string filePath, string baseName)
+        private static bool IsArchivePartFile(string filePath, string baseName)
         {
             var fileName = Path.GetFileNameWithoutExtension(filePath);
             var extension = Path.GetExtension(filePath);

src/NzbDrone.Core/Download/Pending/PendingReleaseService.cs

@@ -450,7 +450,7 @@ private PendingRelease FindPendingRelease(int queueId)
             return GetPendingReleases().First(p => queueId == GetQueueId(p, p.RemoteMovie.Movie));
         }
 
-        private int GetQueueId(PendingRelease pendingRelease, Movie movie)
+        private static int GetQueueId(PendingRelease pendingRelease, Movie movie)
         {
             return HashConverter.GetHashInt31(string.Format("pending-{0}-movie{1}", pendingRelease.Id, movie?.Id ?? 0));
         }

src/NzbDrone.Core/Download/ProcessDownloadDecisions.cs

@@ -158,13 +158,13 @@ internal List<DownloadDecision> GetQualifiedReports(IEnumerable<DownloadDecision
             return decisions.Where(IsQualifiedReport).ToList();
         }
 
-        internal bool IsQualifiedReport(DownloadDecision decision)
+        internal static bool IsQualifiedReport(DownloadDecision decision)
         {
             // Process both approved and temporarily rejected
             return (decision.Approved || decision.TemporarilyRejected) && decision.RemoteMovie.Movie != null;
         }
 
-        private bool IsMovieProcessed(List<DownloadDecision> decisions, DownloadDecision report)
+        private static bool IsMovieProcessed(List<DownloadDecision> decisions, DownloadDecision report)
         {
             var movieId = report.RemoteMovie.Movie.Id;
 

src/NzbDrone.Core/Extras/ImportExistingExtraFilesBase.cs

@@ -39,7 +39,7 @@ public virtual ImportExistingExtraFileFilterResult<TExtraFile> FilterAndClean(Mo
             return Filter(movie, filesOnDisk, importedFiles, movieFiles);
         }
 
-        private ImportExistingExtraFileFilterResult<TExtraFile> Filter(Movie movie, List<string> filesOnDisk, List<string> importedFiles, List<TExtraFile> movieFiles)
+        private static ImportExistingExtraFileFilterResult<TExtraFile> Filter(Movie movie, List<string> filesOnDisk, List<string> importedFiles, List<TExtraFile> movieFiles)
         {
             var previouslyImported = movieFiles.IntersectBy(s => Path.Combine(movie.Path, s.RelativePath), filesOnDisk, f => f, PathEqualityComparer.Instance).ToList();
             var filteredFiles = filesOnDisk.Except(previouslyImported.Select(f => Path.Combine(movie.Path, f.RelativePath)).ToList(), PathEqualityComparer.Instance)

src/NzbDrone.Core/Extras/Metadata/Consumers/MediaBrowser/MediaBrowserMetadata.cs

@@ -100,7 +100,7 @@ public override List<ImageFileResult> MovieImages(Movie movie)
             return new List<ImageFileResult>();
         }
 
-        private IEnumerable<ImageFileResult> ProcessMovieImages(Movie movie)
+        private static IEnumerable<ImageFileResult> ProcessMovieImages(Movie movie)
         {
             return new List<ImageFileResult>();
         }

src/NzbDrone.Core/Extras/Metadata/Consumers/Roksbox/RoksboxMetadata.cs

@@ -149,12 +149,12 @@ public override List<ImageFileResult> MovieImages(Movie movie)
             return new List<ImageFileResult> { new ImageFileResult(destination, source) };
         }
 
-        private string GetMovieFileMetadataFilename(string movieFilePath)
+        private static string GetMovieFileMetadataFilename(string movieFilePath)
         {
             return Path.ChangeExtension(movieFilePath, "xml");
         }
 
-        private string GetMovieFileImageFilename(string movieFilePath)
+        private static string GetMovieFileImageFilename(string movieFilePath)
         {
             return Path.ChangeExtension(movieFilePath, "jpg");
         }

src/NzbDrone.Core/Extras/Metadata/Consumers/Wdtv/WdtvMetadata.cs

@@ -148,12 +148,12 @@ public override List<ImageFileResult> MovieImages(Movie movie)
                    };
         }
 
-        private string GetMovieFileMetadataFilename(string movieFilePath)
+        private static string GetMovieFileMetadataFilename(string movieFilePath)
         {
             return Path.ChangeExtension(movieFilePath, "xml");
         }
 
-        private string GetMovieFileImageFilename(string movieFilePath)
+        private static string GetMovieFileImageFilename(string movieFilePath)
         {
             return Path.ChangeExtension(movieFilePath, "metathumb");
         }

src/NzbDrone.Core/Extras/Metadata/MetadataService.cs

@@ -202,7 +202,7 @@ public override IEnumerable<ExtraFile> ImportFiles(LocalMovie localMovie, MovieF
             return Enumerable.Empty<ExtraFile>();
         }
 
-        private List<MetadataFile> GetMetadataFilesForConsumer(IMetadata consumer, List<MetadataFile> movieMetadata)
+        private static List<MetadataFile> GetMetadataFilesForConsumer(IMetadata consumer, List<MetadataFile> movieMetadata)
         {
             return movieMetadata.Where(c => c.Consumer == consumer.GetType().Name).ToList();
         }

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

@@ -235,7 +235,7 @@ public override IEnumerable<ExtraFile> ImportFiles(LocalMovie localMovie, MovieF
             return importedFiles;
         }
 
-        private string GetSuffix(Language language, int copy, List<string> languageTags, bool multipleCopies = false, string title = null)
+        private static string GetSuffix(Language language, int copy, List<string> languageTags, bool multipleCopies = false, string title = null)
         {
             var suffixBuilder = new StringBuilder();
 

src/NzbDrone.Core/HealthCheck/Checks/ImportListRootFolderCheck.cs

@@ -87,7 +87,7 @@ public override HealthCheck Check()
             return new HealthCheck(GetType());
         }
 
-        private string FormatRootFolder(string rootFolderPath, List<ImportListDefinition> importLists)
+        private static string FormatRootFolder(string rootFolderPath, List<ImportListDefinition> importLists)
         {
             return $"{rootFolderPath} ({string.Join(", ", importLists.Select(l => l.Name))})";
         }

src/NzbDrone.Core/HealthCheck/Checks/MovieCollectionRootFolderCheck.cs

@@ -82,7 +82,7 @@ public override HealthCheck Check()
             return new HealthCheck(GetType());
         }
 
-        private string FormatRootFolder(string rootFolderPath, List<MovieCollection> collections)
+        private static string FormatRootFolder(string rootFolderPath, List<MovieCollection> collections)
         {
             return $"{rootFolderPath} ({string.Join(", ", collections.Select(c => c.Title))})";
         }

src/NzbDrone.Core/History/HistoryRepository.cs

@@ -133,7 +133,7 @@ protected override IEnumerable<MovieHistory> PagedQuery(SqlBuilder builder) =>
                 return hist;
             });
 
-        private string BuildLanguageWhereClause(int[] languages)
+        private static string BuildLanguageWhereClause(int[] languages)
         {
             var clauses = new List<string>();
 
@@ -153,7 +153,7 @@ private string BuildLanguageWhereClause(int[] languages)
             return $"({string.Join(" OR ", clauses)})";
         }
 
-        private string BuildQualityWhereClause(int[] qualities)
+        private static string BuildQualityWhereClause(int[] qualities)
         {
             var clauses = new List<string>();
 

src/NzbDrone.Core/Housekeeping/Housekeepers/CleanupUnusedTags.cs

@@ -49,7 +49,7 @@ public void Clean()
             }
         }
 
-        private int[] GetUsedTags(string table, IDbConnection mapper)
+        private static int[] GetUsedTags(string table, IDbConnection mapper)
         {
             return mapper
                 .Query<List<int>>(