Inline 'out' variable declarations

src/NzbDrone.Common/Cache/Cached.cs

@@ -47,8 +47,7 @@ namespace NzbDrone.Common.Cache
 
         public T Find(string key)
         {
-            CacheItem cacheItem;
+            if (!_store.TryGetValue(key, out var cacheItem))
-            if (!_store.TryGetValue(key, out cacheItem))
             {
                 return default(T);
             }
@@ -76,8 +75,7 @@ namespace NzbDrone.Common.Cache
 
         public void Remove(string key)
         {
-            CacheItem value;
+            _store.TryRemove(key, out _);
-            _store.TryRemove(key, out value);
         }
 
         public int Count => _store.Count;
@@ -88,9 +86,7 @@ namespace NzbDrone.Common.Cache
 
             lifeTime = lifeTime ?? _defaultLifeTime;
 
-            CacheItem cacheItem;
+            if (_store.TryGetValue(key, out var cacheItem) && !cacheItem.IsExpired())
-
-            if (_store.TryGetValue(key, out cacheItem) && !cacheItem.IsExpired())
             {
                 if (_rollingExpiry && lifeTime.HasValue)
                 {

src/NzbDrone.Common/Cache/CachedDictionary.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Concurrent;
 using System.Collections.Generic;
 using System.Diagnostics;
@@ -86,9 +86,7 @@ namespace NzbDrone.Common.Cache
         {
             RefreshIfExpired();
 
-            TValue result;
+            if (!_items.TryGetValue(key, out var result))
-
-            if (!_items.TryGetValue(key, out result))
             {
                 throw new KeyNotFoundException(string.Format("Item {0} not found in cache.", key));
             }
@@ -100,9 +98,7 @@ namespace NzbDrone.Common.Cache
         {
             RefreshIfExpired();
 
-            TValue result;
+            _items.TryGetValue(key, out var result);
-
-            _items.TryGetValue(key, out result);
 
             return result;
         }
@@ -128,8 +124,7 @@ namespace NzbDrone.Common.Cache
 
         public void Remove(string key)
         {
-            TValue item;
+            _items.TryRemove(key, out _);
-            _items.TryRemove(key, out item);
         }
     }
 }

src/NzbDrone.Common/Extensions/TryParseExtensions.cs

@@ -6,9 +6,7 @@ namespace NzbDrone.Common.Extensions
     {
         public static int? ParseInt32(this string source)
         {
-            int result;
+            if (int.TryParse(source, out var result))
-
-            if (int.TryParse(source, out result))
             {
                 return result;
             }
@@ -18,9 +16,7 @@ namespace NzbDrone.Common.Extensions
 
         public static long? ParseInt64(this string source)
         {
-            long result;
+            if (long.TryParse(source, out var result))
-
-            if (long.TryParse(source, out result))
             {
                 return result;
             }
@@ -30,9 +26,7 @@ namespace NzbDrone.Common.Extensions
 
         public static double? ParseDouble(this string source)
         {
-            double result;
+            if (double.TryParse(source.Replace(',', '.'), NumberStyles.Number, CultureInfo.InvariantCulture, out var result))
-
-            if (double.TryParse(source.Replace(',', '.'), NumberStyles.Number, CultureInfo.InvariantCulture, out result))
             {
                 return result;
             }

src/NzbDrone.Common/Http/TooManyRequestsException.cs

@@ -12,14 +12,12 @@ namespace NzbDrone.Common.Http
             if (response.Headers.ContainsKey("Retry-After"))
             {
                 var retryAfter = response.Headers["Retry-After"].ToString();
-                int seconds;
-                DateTime date;
 
-                if (int.TryParse(retryAfter, out seconds))
+                if (int.TryParse(retryAfter, out var seconds))
                 {
                     RetryAfter = TimeSpan.FromSeconds(seconds);
                 }
-                else if (DateTime.TryParse(retryAfter, out date))
+                else if (DateTime.TryParse(retryAfter, out var date))
                 {
                     RetryAfter = date.ToUniversalTime() - DateTime.UtcNow;
                 }

src/NzbDrone.Core/Configuration/ConfigFileProvider.cs

@@ -108,8 +108,7 @@ namespace NzbDrone.Core.Configuration
                     continue;
                 }
 
-                object currentValue;
+                allWithDefaults.TryGetValue(configValue.Key, out var currentValue);
-                allWithDefaults.TryGetValue(configValue.Key, out currentValue);
                 if (currentValue == null)
                 {
                     continue;

src/NzbDrone.Core/Configuration/ConfigService.cs

@@ -57,8 +57,7 @@ namespace NzbDrone.Core.Configuration
 
             foreach (var configValue in configValues)
             {
-                object currentValue;
+                allWithDefaults.TryGetValue(configValue.Key, out var currentValue);
-                allWithDefaults.TryGetValue(configValue.Key, out currentValue);
                 if (currentValue == null || configValue.Value == null)
                 {
                     continue;
@@ -397,9 +396,7 @@ namespace NzbDrone.Core.Configuration
 
             EnsureCache();
 
-            string dbValue;
+            if (_cache.TryGetValue(key, out var dbValue) && dbValue != null && !string.IsNullOrEmpty(dbValue))
-
-            if (_cache.TryGetValue(key, out dbValue) && dbValue != null && !string.IsNullOrEmpty(dbValue))
             {
                 return dbValue;
             }

src/NzbDrone.Core/DataAugmentation/Xem/XemProxy.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using Newtonsoft.Json.Linq;
@@ -49,8 +49,7 @@ namespace NzbDrone.Core.DataAugmentation.Xem
 
             return response.Data.Select(d =>
             {
-                int tvdbId = 0;
+                int.TryParse(d, out var tvdbId);
-                int.TryParse(d, out tvdbId);
 
                 return tvdbId;
             }).Where(t => t > 0).ToList();
@@ -89,8 +88,7 @@ namespace NzbDrone.Core.DataAugmentation.Xem
                 {
                     foreach (var n in name)
                     {
-                        int seasonNumber;
+                        if (!int.TryParse(n.Value.ToString(), out var seasonNumber))
-                        if (!int.TryParse(n.Value.ToString(), out seasonNumber))
                         {
                             continue;
                         }

src/NzbDrone.Core/Datastore/Migration/036_update_with_quality_converters.cs

@@ -82,9 +82,7 @@ namespace NzbDrone.Core.Datastore.Migration
                     {
                         var qualityJson = qualityModelReader.GetString(0);
 
-                        SourceQualityModel036 sourceQuality;
+                        if (!Json.TryDeserialize<SourceQualityModel036>(qualityJson, out var sourceQuality))
-
-                        if (!Json.TryDeserialize<SourceQualityModel036>(qualityJson, out sourceQuality))
                         {
                             continue;
                         }

src/NzbDrone.Core/Datastore/Migration/062_convert_quality_models.cs

@@ -1,4 +1,4 @@
-using System.Collections.Generic;
+using System.Collections.Generic;
 using System.Data;
 using FluentMigrator;
 using NzbDrone.Common.Serializer;
@@ -37,9 +37,7 @@ namespace NzbDrone.Core.Datastore.Migration
                     {
                         var qualityJson = qualityModelReader.GetString(0);
 
-                        LegacyQualityModel062 quality;
+                        if (!Json.TryDeserialize<LegacyQualityModel062>(qualityJson, out var quality))
-
-                        if (!Json.TryDeserialize<LegacyQualityModel062>(qualityJson, out quality))
                         {
                             continue;
                         }

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

@@ -257,9 +257,8 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         protected long GetRemainingSize(DownloadStationTask torrent)
         {
             var downloadedString = torrent.Additional.Transfer["size_downloaded"];
-            long downloadedSize;
 
-            if (downloadedString.IsNullOrWhiteSpace() || !long.TryParse(downloadedString, out downloadedSize))
+            if (downloadedString.IsNullOrWhiteSpace() || !long.TryParse(downloadedString, out var downloadedSize))
             {
                 _logger.Debug("Torrent {0} has invalid size_downloaded: {1}", torrent.Title, downloadedString);
                 downloadedSize = 0;
@@ -271,9 +270,8 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         protected TimeSpan? GetRemainingTime(DownloadStationTask torrent)
         {
             var speedString = torrent.Additional.Transfer["speed_download"];
-            long downloadSpeed;
 
-            if (speedString.IsNullOrWhiteSpace() || !long.TryParse(speedString, out downloadSpeed))
+            if (speedString.IsNullOrWhiteSpace() || !long.TryParse(speedString, out var downloadSpeed))
             {
                 _logger.Debug("Torrent {0} has invalid speed_download: {1}", torrent.Title, speedString);
                 downloadSpeed = 0;

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

@@ -354,9 +354,8 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         protected long GetRemainingSize(DownloadStationTask task)
         {
             var downloadedString = task.Additional.Transfer["size_downloaded"];
-            long downloadedSize;
 
-            if (downloadedString.IsNullOrWhiteSpace() || !long.TryParse(downloadedString, out downloadedSize))
+            if (downloadedString.IsNullOrWhiteSpace() || !long.TryParse(downloadedString, out var downloadedSize))
             {
                 _logger.Debug("Task {0} has invalid size_downloaded: {1}", task.Title, downloadedString);
                 downloadedSize = 0;
@@ -368,9 +367,8 @@ namespace NzbDrone.Core.Download.Clients.DownloadStation
         protected long GetDownloadSpeed(DownloadStationTask task)
         {
             var speedString = task.Additional.Transfer["speed_download"];
-            long downloadSpeed;
 
-            if (speedString.IsNullOrWhiteSpace() || !long.TryParse(speedString, out downloadSpeed))
+            if (speedString.IsNullOrWhiteSpace() || !long.TryParse(speedString, out var downloadSpeed))
             {
                 _logger.Debug("Task {0} has invalid speed_download: {1}", task.Title, speedString);
                 downloadSpeed = 0;

src/NzbDrone.Core/Download/Clients/NzbVortex/JsonConverters/NzbVortexLoginResultTypeConverter.cs

@@ -15,8 +15,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex.JsonConverters
         {
             var result = reader.Value.ToString().Replace("_", string.Empty);
 
-            NzbVortexLoginResultType output;
+            Enum.TryParse(result, true, out NzbVortexLoginResultType output);
-            Enum.TryParse(result, true, out output);
 
             return output;
         }

src/NzbDrone.Core/Download/Clients/NzbVortex/JsonConverters/NzbVortexResultTypeConverter.cs

@@ -15,8 +15,7 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex.JsonConverters
         {
             var result = reader.Value.ToString().Replace("_", string.Empty);
 
-            NzbVortexResultType output;
+            Enum.TryParse(result, true, out NzbVortexResultType output);
-            Enum.TryParse(result, true, out output);
 
             return output;
         }

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

@@ -112,9 +112,8 @@ namespace NzbDrone.Core.Download.Clients.NzbVortex
         public override void RemoveItem(DownloadClientItem item, bool deleteData)
         {
             // Try to find the download by numerical ID, otherwise try by AddUUID
-            int id;
 
-            if (int.TryParse(item.DownloadId, out id))
+            if (int.TryParse(item.DownloadId, out var id))
             {
                 _proxy.Remove(id, deleteData, Settings);
             }

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

@@ -309,8 +309,7 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
             var config = _proxy.GetConfig(Settings);
 
             var keepHistory = config.GetValueOrDefault("KeepHistory", "7");
-            int value;
+            if (!int.TryParse(keepHistory, NumberStyles.None, CultureInfo.InvariantCulture, out var value) || value == 0)
-            if (!int.TryParse(keepHistory, NumberStyles.None, CultureInfo.InvariantCulture, out value) || value == 0)
             {
                 return new NzbDroneValidationFailure(string.Empty, "NzbGet setting KeepHistory should be greater than 0")
                 {

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

@@ -165,11 +165,10 @@ namespace NzbDrone.Core.Download.Clients.Nzbget
             var queue = GetQueue(settings);
             var history = GetHistory(settings);
 
-            int nzbId;
             NzbgetQueueItem queueItem;
             NzbgetHistoryItem historyItem;
 
-            if (id.Length < 10 && int.TryParse(id, out nzbId))
+            if (id.Length < 10 && int.TryParse(id, out var nzbId))
             {
                 // Download wasn't grabbed by Sonarr, so the id is the NzbId reported by nzbget.
                 queueItem = queue.SingleOrDefault(h => h.NzbId == nzbId);

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

@@ -15,8 +15,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd.JsonConverters
         {
             var queuePriority = reader.Value.ToString();
 
-            SabnzbdPriority output;
+            Enum.TryParse(queuePriority, out SabnzbdPriority output);
-            Enum.TryParse(queuePriority, out output);
 
             return output;
         }

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

@@ -51,9 +51,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
 
             request.AddFormUpload("name", filename, nzbData, "application/x-nzb");
 
-            SabnzbdAddResponse response;
+            if (!Json.TryDeserialize<SabnzbdAddResponse>(ProcessRequest(request, settings), out var response))
-
-            if (!Json.TryDeserialize<SabnzbdAddResponse>(ProcessRequest(request, settings), out response))
             {
                 response = new SabnzbdAddResponse();
                 response.Status = true;
@@ -76,9 +74,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
         {
             var request = BuildRequest("version", settings);
 
-            SabnzbdVersionResponse response;
+            if (!Json.TryDeserialize<SabnzbdVersionResponse>(ProcessRequest(request, settings), out var response))
-
-            if (!Json.TryDeserialize<SabnzbdVersionResponse>(ProcessRequest(request, settings), out response))
             {
                 response = new SabnzbdVersionResponse();
             }
@@ -142,9 +138,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
             var request = BuildRequest("retry", settings);
             request.AddQueryParam("value", id);
 
-            SabnzbdRetryResponse response;
+            if (!Json.TryDeserialize<SabnzbdRetryResponse>(ProcessRequest(request, settings), out var response))
-
-            if (!Json.TryDeserialize<SabnzbdRetryResponse>(ProcessRequest(request, settings), out response))
             {
                 response = new SabnzbdRetryResponse();
                 response.Status = true;
@@ -215,9 +209,7 @@ namespace NzbDrone.Core.Download.Clients.Sabnzbd
 
         private void CheckForError(HttpResponse response)
         {
-            SabnzbdJsonError result;
+            if (!Json.TryDeserialize<SabnzbdJsonError>(response.Content, out var result))
-
-            if (!Json.TryDeserialize<SabnzbdJsonError>(response.Content, out result))
             {
                 // Handle plain text responses from SAB
                 result = new SabnzbdJsonError();

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

@@ -54,8 +54,7 @@ namespace NzbDrone.Core.Download.Clients.Vuze
 
             _logger.Debug("Vuze protocol version information: {0}", versionString);
 
-            int version;
+            if (!int.TryParse(versionString, out var version) || version < MINIMUM_SUPPORTED_PROTOCOL_VERSION)
-            if (!int.TryParse(versionString, out version) || version < MINIMUM_SUPPORTED_PROTOCOL_VERSION)
             {
                 {
                     return new ValidationFailure(string.Empty, "Protocol version not supported, use Vuze 5.0.0.0 or higher with Vuze Web Remote plugin.");

src/NzbDrone.Core/Download/DownloadClientFactory.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Linq;
 using FluentValidation.Results;
@@ -60,8 +60,7 @@ namespace NzbDrone.Core.Download
 
             foreach (var client in clients)
             {
-                DownloadClientStatus downloadClientStatus;
+                if (blockedIndexers.TryGetValue(client.Definition.Id, out var downloadClientStatus))
-                if (blockedIndexers.TryGetValue(client.Definition.Id, out downloadClientStatus))
                 {
                     _logger.Debug("Temporarily ignoring download client {0} till {1} due to recent failures.", client.Definition.Name, downloadClientStatus.DisabledTill.Value.ToLocalTime());
                     continue;

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

@@ -210,8 +210,7 @@ namespace NzbDrone.Core.Extras.Metadata.Consumers.Roksbox
 
             var seasonFolders = GetSeasonFolders(series);
 
-            string seasonFolder;
+            if (!seasonFolders.TryGetValue(season.SeasonNumber, out var seasonFolder))
-            if (!seasonFolders.TryGetValue(season.SeasonNumber, out seasonFolder))
             {
                 _logger.Trace("Failed to find season folder for series {0}, season {1}.", series.Title, season.SeasonNumber);
                 return new List<ImageFileResult>();
@@ -278,8 +277,7 @@ namespace NzbDrone.Core.Extras.Metadata.Consumers.Roksbox
                     }
                     else
                     {
-                        int matchedSeason;
+                        if (int.TryParse(seasonNumber, out var matchedSeason))
-                        if (int.TryParse(seasonNumber, out matchedSeason))
                         {
                             seasonFolderMap[matchedSeason] = folder;
                         }

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

@@ -203,8 +203,7 @@ namespace NzbDrone.Core.Extras.Metadata.Consumers.Wdtv
             var seasonFolders = GetSeasonFolders(series);
 
             // Work out the path to this season - if we don't have a matching path then skip this season.
-            string seasonFolder;
+            if (!seasonFolders.TryGetValue(season.SeasonNumber, out var seasonFolder))
-            if (!seasonFolders.TryGetValue(season.SeasonNumber, out seasonFolder))
             {
                 _logger.Trace("Failed to find season folder for series {0}, season {1}.", series.Title, season.SeasonNumber);
                 return new List<ImageFileResult>();
@@ -270,8 +269,7 @@ namespace NzbDrone.Core.Extras.Metadata.Consumers.Wdtv
                     }
                     else
                     {
-                        int matchedSeason;
+                        if (int.TryParse(seasonNumber, out var matchedSeason))
-                        if (int.TryParse(seasonNumber, out matchedSeason))
                         {
                             seasonFolderMap[matchedSeason] = folder;
                         }

src/NzbDrone.Core/Extras/Metadata/Consumers/Xbmc/XbmcMetadata.cs

@@ -94,13 +94,12 @@ namespace NzbDrone.Core.Extras.Metadata.Consumers.Xbmc
                 metadata.Type = MetadataType.SeasonImage;
 
                 var seasonNumberMatch = seasonMatch.Groups["season"].Value;
-                int seasonNumber;
 
                 if (seasonNumberMatch.Contains("specials"))
                 {
                     metadata.SeasonNumber = 0;
                 }
-                else if (int.TryParse(seasonNumberMatch, out seasonNumber))
+                else if (int.TryParse(seasonNumberMatch, out var seasonNumber))
                 {
                     metadata.SeasonNumber = seasonNumber;
                 }

src/NzbDrone.Core/HealthCheck/HealthCheckService.cs

@@ -153,8 +153,7 @@ namespace NzbDrone.Core.HealthCheck
                 _isRunningHealthChecksAfterGracePeriod = false;
             }
 
-            IEventDrivenHealthCheck[] checks;
+            if (!_eventDrivenHealthChecks.TryGetValue(message.GetType(), out var checks))
-            if (!_eventDrivenHealthChecks.TryGetValue(message.GetType(), out checks))
             {
                 return;
             }

src/NzbDrone.Core/ImportLists/ImportListFactory.cs

@@ -61,8 +61,7 @@ namespace NzbDrone.Core.ImportLists
 
             foreach (var importList in importLists)
             {
-                ImportListStatus blockedImportListStatus;
+                if (blockedImportLists.TryGetValue(importList.Definition.Id, out var blockedImportListStatus))
-                if (blockedImportLists.TryGetValue(importList.Definition.Id, out blockedImportListStatus))
                 {
                     _logger.Debug("Temporarily ignoring import list {0} till {1} due to recent failures.", importList.Definition.Name, blockedImportListStatus.DisabledTill.Value.ToLocalTime());
                     continue;

src/NzbDrone.Core/Indexers/BroadcastheNet/BroadcastheNet.cs

@@ -26,10 +26,9 @@ namespace NzbDrone.Core.Indexers.BroadcastheNet
             var releaseInfo = _indexerStatusService.GetLastRssSyncReleaseInfo(Definition.Id);
             if (releaseInfo != null)
             {
-                int torrentID;
+                if (int.TryParse(releaseInfo.Guid.Replace("BTN-", string.Empty), out var torrentId))
-                if (int.TryParse(releaseInfo.Guid.Replace("BTN-", string.Empty), out torrentID))
                 {
-                    requestGenerator.LastRecentTorrentID = torrentID;
+                    requestGenerator.LastRecentTorrentID = torrentId;
                 }
             }
 

src/NzbDrone.Core/Indexers/IndexerFactory.cs

@@ -88,8 +88,7 @@ namespace NzbDrone.Core.Indexers
 
             foreach (var indexer in indexers)
             {
-                IndexerStatus blockedIndexerStatus;
+                if (blockedIndexers.TryGetValue(indexer.Definition.Id, out var blockedIndexerStatus))
-                if (blockedIndexers.TryGetValue(indexer.Definition.Id, out blockedIndexerStatus))
                 {
                     _logger.Debug("Temporarily ignoring indexer {0} till {1} due to recent failures.", indexer.Definition.Name, blockedIndexerStatus.DisabledTill.Value.ToLocalTime());
                     continue;

src/NzbDrone.Core/Indexers/Newznab/NewznabRssParser.cs

@@ -129,10 +129,8 @@ namespace NzbDrone.Core.Indexers.Newznab
 
         protected override long GetSize(XElement item)
         {
-            long size;
-
             var sizeString = TryGetNewznabAttribute(item, "size");
-            if (!sizeString.IsNullOrWhiteSpace() && long.TryParse(sizeString, out size))
+            if (!sizeString.IsNullOrWhiteSpace() && long.TryParse(sizeString, out var size))
             {
                 return size;
             }
@@ -156,9 +154,8 @@ namespace NzbDrone.Core.Indexers.Newznab
         protected virtual int GetTvdbId(XElement item)
         {
             var tvdbIdString = TryGetNewznabAttribute(item, "tvdbid");
-            int tvdbId;
 
-            if (!tvdbIdString.IsNullOrWhiteSpace() && int.TryParse(tvdbIdString, out tvdbId))
+            if (!tvdbIdString.IsNullOrWhiteSpace() && int.TryParse(tvdbIdString, out var tvdbId))
             {
                 return tvdbId;
             }
@@ -169,9 +166,8 @@ namespace NzbDrone.Core.Indexers.Newznab
         protected virtual int GetTvRageId(XElement item)
         {
             var tvRageIdString = TryGetNewznabAttribute(item, "rageid");
-            int tvRageId;
 
-            if (!tvRageIdString.IsNullOrWhiteSpace() && int.TryParse(tvRageIdString, out tvRageId))
+            if (!tvRageIdString.IsNullOrWhiteSpace() && int.TryParse(tvRageIdString, out var tvRageId))
             {
                 return tvRageId;
             }

src/NzbDrone.Core/Indexers/Torznab/TorznabRssParser.cs

@@ -120,10 +120,8 @@ namespace NzbDrone.Core.Indexers.Torznab
 
         protected override long GetSize(XElement item)
         {
-            long size;
-
             var sizeString = TryGetTorznabAttribute(item, "size");
-            if (!sizeString.IsNullOrWhiteSpace() && long.TryParse(sizeString, out size))
+            if (!sizeString.IsNullOrWhiteSpace() && long.TryParse(sizeString, out var size))
             {
                 return size;
             }
@@ -153,9 +151,8 @@ namespace NzbDrone.Core.Indexers.Torznab
         protected virtual int GetTvdbId(XElement item)
         {
             var tvdbIdString = TryGetTorznabAttribute(item, "tvdbid");
-            int tvdbId;
 
-            if (!tvdbIdString.IsNullOrWhiteSpace() && int.TryParse(tvdbIdString, out tvdbId))
+            if (!tvdbIdString.IsNullOrWhiteSpace() && int.TryParse(tvdbIdString, out var tvdbId))
             {
                 return tvdbId;
             }
@@ -166,9 +163,8 @@ namespace NzbDrone.Core.Indexers.Torznab
         protected virtual int GetTvRageId(XElement item)
         {
             var tvRageIdString = TryGetTorznabAttribute(item, "rageid");
-            int tvRageId;
 
-            if (!tvRageIdString.IsNullOrWhiteSpace() && int.TryParse(tvRageIdString, out tvRageId))
+            if (!tvRageIdString.IsNullOrWhiteSpace() && int.TryParse(tvRageIdString, out var tvRageId))
             {
                 return tvRageId;
             }

src/NzbDrone.Core/Indexers/XElementExtensions.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using System.Collections.Generic;
 using System.Globalization;
 using System.Linq;
@@ -39,8 +39,7 @@ namespace NzbDrone.Core.Indexers
         {
             try
             {
-                DateTime result;
+                if (!DateTime.TryParse(dateString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal, out var result))
-                if (!DateTime.TryParse(dateString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal, out result))
                 {
                     dateString = RemoveTimeZoneRegex.Replace(dateString, "");
                     result = DateTime.Parse(dateString, DateTimeFormatInfo.InvariantInfo, DateTimeStyles.AssumeUniversal);

src/NzbDrone.Core/MediaFiles/UpdateEpisodeFileService.cs

@@ -81,9 +81,7 @@ namespace NzbDrone.Core.MediaFiles
 
         private bool ChangeFileDateToLocalAirDate(string filePath, string fileDate, string fileTime)
         {
-            DateTime airDate;
+            if (DateTime.TryParse(fileDate + ' ' + fileTime, out var airDate))
-
-            if (DateTime.TryParse(fileDate + ' ' + fileTime, out airDate))
             {
                 // avoiding false +ve checks and set date skewing by not using UTC (Windows)
                 DateTime oldDateTime = _diskProvider.FileGetLastWrite(filePath);

src/NzbDrone.Core/Messaging/Events/EventAggregator.cs

@@ -75,8 +75,7 @@ namespace NzbDrone.Core.Messaging.Events
             EventSubscribers<TEvent> subscribers;
             lock (_eventSubscribers)
             {
-                object target;
+                if (!_eventSubscribers.TryGetValue(eventName, out var target))
-                if (!_eventSubscribers.TryGetValue(eventName, out target))
                 {
                     _eventSubscribers[eventName] = target = new EventSubscribers<TEvent>(_serviceFactory);
                 }

src/NzbDrone.Core/MetadataSource/SkyHook/SkyHookProxy.cs

@@ -93,9 +93,7 @@ namespace NzbDrone.Core.MetadataSource.SkyHook
                 {
                     var slug = lowerTitle.Split(':')[1].Trim();
 
-                    int tvdbId;
+                    if (slug.IsNullOrWhiteSpace() || slug.Any(char.IsWhiteSpace) || !int.TryParse(slug, out var tvdbId) || tvdbId <= 0)
-
-                    if (slug.IsNullOrWhiteSpace() || slug.Any(char.IsWhiteSpace) || !int.TryParse(slug, out tvdbId) || tvdbId <= 0)
                     {
                         return new List<Series>();
                     }

src/NzbDrone.Core/Notifications/Plex/PlexTv/PlexTvProxy.cs

@@ -30,9 +30,7 @@ namespace NzbDrone.Core.Notifications.Plex.PlexTv
             var request = BuildRequest(clientIdentifier);
             request.ResourceUrl = $"/api/v2/pins/{pinId}";
 
-            PlexTvPinResponse response;
+            if (!Json.TryDeserialize<PlexTvPinResponse>(ProcessRequest(request), out var response))
-
-            if (!Json.TryDeserialize<PlexTvPinResponse>(ProcessRequest(request), out response))
             {
                 response = new PlexTvPinResponse();
             }

src/NzbDrone.Core/Notifications/PushBullet/PushBulletProxy.cs

@@ -152,14 +152,13 @@ namespace NzbDrone.Core.Notifications.PushBullet
         private HttpRequestBuilder BuildDeviceRequest(string deviceId)
         {
             var requestBuilder = new HttpRequestBuilder(PUSH_URL).Post();
-            long integerId;
 
             if (deviceId.IsNullOrWhiteSpace())
             {
                 return requestBuilder;
             }
 
-            if (long.TryParse(deviceId, out integerId))
+            if (long.TryParse(deviceId, out var integerId))
             {
                 requestBuilder.AddFormParameter("device_id", integerId);
             }

src/NzbDrone.Core/Notifications/Xbmc/XbmcService.cs

@@ -67,8 +67,7 @@ namespace NzbDrone.Core.Notifications.Xbmc
 
             var matchingSeries = allSeries.FirstOrDefault(s =>
             {
-                var tvdbId = 0;
+                int.TryParse(s.ImdbNumber, out var tvdbId);
-                int.TryParse(s.ImdbNumber, out tvdbId);
 
                 return tvdbId == series.TvdbId || s.Label == series.Title;
             });

src/NzbDrone.Core/Parser/Parser.cs

@@ -735,10 +735,8 @@ namespace NzbDrone.Core.Parser
 
         public static string CleanSeriesTitle(this string title)
         {
-            long number = 0;
-
             // If Title only contains numbers return it as is.
-            if (long.TryParse(title, out number))
+            if (long.TryParse(title, out _))
             {
                 return title;
             }
@@ -840,9 +838,8 @@ namespace NzbDrone.Core.Parser
             if (matches.Count != 0)
             {
                 var group = matches.OfType<Match>().Last().Groups["releasegroup"].Value;
-                int groupIsNumeric;
 
-                if (int.TryParse(group, out groupIsNumeric))
+                if (int.TryParse(group, out _))
                 {
                     return null;
                 }
@@ -906,8 +903,7 @@ namespace NzbDrone.Core.Parser
             var seriesName = matchCollection[0].Groups["title"].Value.Replace('.', ' ').Replace('_', ' ');
             seriesName = RequestInfoRegex.Replace(seriesName, "").Trim(' ');
 
-            int airYear;
+            int.TryParse(matchCollection[0].Groups["airyear"].Value, out var airYear);
-            int.TryParse(matchCollection[0].Groups["airyear"].Value, out airYear);
 
             int lastSeasonEpisodeStringIndex = matchCollection[0].Groups["title"].EndIndex();
 
@@ -1009,8 +1005,7 @@ namespace NzbDrone.Core.Parser
 
                 foreach (Capture seasonCapture in matchCollection[0].Groups["season"].Captures)
                 {
-                    int parsedSeason;
+                    if (int.TryParse(seasonCapture.Value, out var parsedSeason))
-                    if (int.TryParse(seasonCapture.Value, out parsedSeason))
                     {
                         seasons.Add(parsedSeason);
 
@@ -1170,11 +1165,9 @@ namespace NzbDrone.Core.Parser
 
         private static int ParseNumber(string value)
         {
-            int number;
-
             var normalized = value.Normalize(NormalizationForm.FormKC);
 
-            if (int.TryParse(normalized, out number))
+            if (int.TryParse(normalized, out var number))
             {
                 return number;
             }
@@ -1191,11 +1184,9 @@ namespace NzbDrone.Core.Parser
 
         private static decimal ParseDecimal(string value)
         {
-            decimal number;
-
             var normalized = value.Normalize(NormalizationForm.FormKC);
 
-            if (decimal.TryParse(normalized, NumberStyles.Float, CultureInfo.InvariantCulture, out number))
+            if (decimal.TryParse(normalized, NumberStyles.Float, CultureInfo.InvariantCulture, out var number))
             {
                 return number;
             }

src/NzbDrone.Core/Profiles/Releases/TermMatcherService.cs

@@ -1,5 +1,4 @@
-using System;
+using System;
-using System.Text.RegularExpressions;
 using NzbDrone.Common.Cache;
 using NzbDrone.Core.Profiles.Releases.TermMatchers;
 
@@ -37,8 +36,7 @@ namespace NzbDrone.Core.Profiles.Releases
 
         private ITermMatcher CreateMatcherInternal(string term)
         {
-            Regex regex;
+            if (PerlRegexFactory.TryCreateRegex(term, out var regex))
-            if (PerlRegexFactory.TryCreateRegex(term, out regex))
             {
                 return new RegexTermMatcher(regex);
             }

src/NzbDrone.Mono.Test/DiskProviderTests/DiskProviderFixture.cs

@@ -58,8 +58,7 @@ namespace NzbDrone.Mono.Test.DiskProviderTests
         {
             // Remove Write permissions, we're still owner so we can clean it up, but we'll have to do that explicitly.
 
-            Stat stat;
+            Syscall.stat(path, out var stat);
-            Syscall.stat(path, out stat);
             FilePermissions mode = stat.st_mode;
 
             if (writable)

src/NzbDrone.Mono/Disk/DiskProvider.cs

@@ -474,9 +474,7 @@ namespace NzbDrone.Mono.Disk
                 return UNCHANGED_ID;
             }
 
-            uint userId;
+            if (uint.TryParse(user, out var userId))
-
-            if (uint.TryParse(user, out userId))
             {
                 return userId;
             }
@@ -498,9 +496,7 @@ namespace NzbDrone.Mono.Disk
                 return UNCHANGED_ID;
             }
 
-            uint groupId;
+            if (uint.TryParse(group, out var groupId))
-
-            if (uint.TryParse(group, out groupId))
             {
                 return groupId;
             }

src/NzbDrone.Mono/Disk/SymbolicLinkResolver.cs

@@ -1,4 +1,4 @@
-using System;
+using System;
 using Mono.Unix;
 using Mono.Unix.Native;
 using NLog;
@@ -83,9 +83,7 @@ namespace NzbDrone.Mono.Disk
 
         private bool TryFollowFirstSymbolicLink(ref string path)
         {
-            string[] dirs;
+            GetPathComponents(path, out var dirs, out var lastIndex);
-            int lastIndex;
-            GetPathComponents(path, out dirs, out lastIndex);
 
             if (lastIndex == 0)
             {

src/NzbDrone.Test.Common/LoggingTest.cs

@@ -23,8 +23,7 @@ namespace NzbDrone.Test.Common
             {
                 LogManager.Configuration = new LoggingConfiguration();
 
-                var logOutput = TestLogOutput.Console;
+                Enum.TryParse<TestLogOutput>(Environment.GetEnvironmentVariable("SONARR_TESTS_LOG_OUTPUT"), out var logOutput);
-                Enum.TryParse<TestLogOutput>(Environment.GetEnvironmentVariable("SONARR_TESTS_LOG_OUTPUT"), out logOutput);
 
                 RegisterSentryLogger();
 

src/NzbDrone.Update/UpdateApp.cs

@@ -100,8 +100,7 @@ namespace NzbDrone.Update
 
         private int ParseProcessId(string arg)
         {
-            int id;
+            if (!int.TryParse(arg, out var id) || id <= 0)
-            if (!int.TryParse(arg, out id) || id <= 0)
             {
                 throw new ArgumentOutOfRangeException("arg", "Invalid process ID");
             }

src/NzbDrone.Windows/Disk/DiskProvider.cs

@@ -92,8 +92,7 @@ namespace NzbDrone.Windows.Disk
                                                           PropagationFlags.InheritOnly,
                                                           controlType);
 
-                bool modified;
+                directorySecurity.ModifyAccessRule(AccessControlModification.Add, accessRule, out var modified);
-                directorySecurity.ModifyAccessRule(AccessControlModification.Add, accessRule, out modified);
 
                 if (modified)
                 {
@@ -142,11 +141,7 @@ namespace NzbDrone.Windows.Disk
                 folderName += '\\';
             }
 
-            ulong free = 0;
+            if (GetDiskFreeSpaceEx(folderName, out var free, out var dummy1, out var dummy2))
-            ulong dummy1 = 0;
-            ulong dummy2 = 0;
-
-            if (GetDiskFreeSpaceEx(folderName, out free, out dummy1, out dummy2))
             {
                 return (long)free;
             }
@@ -163,11 +158,7 @@ namespace NzbDrone.Windows.Disk
                 folderName += '\\';
             }
 
-            ulong total = 0;
+            if (GetDiskFreeSpaceEx(folderName, out var dummy1, out var total, out var dummy2))
-            ulong dummy1 = 0;
-            ulong dummy2 = 0;
-
-            if (GetDiskFreeSpaceEx(folderName, out dummy1, out total, out dummy2))
             {
                 return (long)total;
             }

src/Sonarr.Http/ClientSchema/SchemaBuilder.cs

@@ -81,8 +81,7 @@ namespace Sonarr.Http.ClientSchema
         {
             lock (_mappings)
             {
-                FieldMapping[] result;
+                if (!_mappings.TryGetValue(type, out var result))
-                if (!_mappings.TryGetValue(type, out result))
                 {
                     result = GetFieldMapping(type, "", v => v);