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Lidarr/src/NzbDrone.Core/MediaFiles/DiskScanService.cs

184 lines
7.1 KiB

using System;
using System.Collections.Generic;
using System.Diagnostics;
using System.IO;
using System.Linq;
using System.Text.RegularExpressions;
using NLog;
using NzbDrone.Common.Disk;
using NzbDrone.Common.Extensions;
using NzbDrone.Common.Instrumentation.Extensions;
using NzbDrone.Core.Configuration;
using NzbDrone.Core.MediaFiles.Commands;
using NzbDrone.Core.MediaFiles.EpisodeImport;
using NzbDrone.Core.MediaFiles.Events;
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using NzbDrone.Core.Messaging.Commands;
using NzbDrone.Core.Messaging.Events;
using NzbDrone.Core.Tv;
using NzbDrone.Core.Tv.Events;
namespace NzbDrone.Core.MediaFiles
{
public interface IDiskScanService
{
void Scan(Series series);
string[] GetVideoFiles(string path, bool allDirectories = true);
}
public class DiskScanService :
IDiskScanService,
IHandle<SeriesUpdatedEvent>,
IExecute<RescanSeriesCommand>
{
private readonly IDiskProvider _diskProvider;
private readonly IMakeImportDecision _importDecisionMaker;
private readonly IImportApprovedEpisodes _importApprovedEpisodes;
private readonly IConfigService _configService;
private readonly ISeriesService _seriesService;
private readonly IMediaFileTableCleanupService _mediaFileTableCleanupService;
private readonly IEventAggregator _eventAggregator;
private readonly Logger _logger;
public DiskScanService(IDiskProvider diskProvider,
IMakeImportDecision importDecisionMaker,
IImportApprovedEpisodes importApprovedEpisodes,
IConfigService configService,
ISeriesService seriesService,
IMediaFileTableCleanupService mediaFileTableCleanupService,
IEventAggregator eventAggregator,
Logger logger)
{
_diskProvider = diskProvider;
_importDecisionMaker = importDecisionMaker;
_importApprovedEpisodes = importApprovedEpisodes;
_configService = configService;
_seriesService = seriesService;
_mediaFileTableCleanupService = mediaFileTableCleanupService;
_eventAggregator = eventAggregator;
_logger = logger;
}
private static readonly Regex ExcludedSubFoldersRegex = new Regex(@"(extras|@eadir)(?:\\|\/)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
private static readonly Regex ExcludedFoldersRegex = new Regex(@"(?:\\|\/)(\..+)(?:\\|\/)", RegexOptions.Compiled | RegexOptions.IgnoreCase);
public void Scan(Series series)
{
var rootFolder = _diskProvider.GetParentFolder(series.Path);
if (!_diskProvider.FolderExists(rootFolder))
{
_logger.Warn("Series' root folder ({0}) doesn't exist.", rootFolder);
_eventAggregator.PublishEvent(new SeriesScanSkippedEvent(series, SeriesScanSkippedReason.RootFolderDoesNotExist));
return;
}
if (_diskProvider.GetDirectories(rootFolder).Empty())
{
_logger.Warn("Series' root folder ({0}) is empty.", rootFolder);
_eventAggregator.PublishEvent(new SeriesScanSkippedEvent(series, SeriesScanSkippedReason.RootFolderIsEmpty));
return;
}
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_logger.ProgressInfo("Scanning disk for {0}", series.Title);
_mediaFileTableCleanupService.Clean(series);
if (!_diskProvider.FolderExists(series.Path))
{
if (_configService.CreateEmptySeriesFolders &&
_diskProvider.FolderExists(rootFolder))
{
_logger.Debug("Creating missing series folder: {0}", series.Path);
_diskProvider.CreateFolder(series.Path);
SetPermissions(series.Path);
}
else
{
_logger.Debug("Series folder doesn't exist: {0}", series.Path);
}
_eventAggregator.PublishEvent(new SeriesScanSkippedEvent(series, SeriesScanSkippedReason.SeriesFolderDoesNotExist));
return;
}
var videoFilesStopwatch = Stopwatch.StartNew();
var mediaFileList = FilterFiles(series, GetVideoFiles(series.Path)).ToList();
videoFilesStopwatch.Stop();
_logger.Trace("Finished getting episode files for: {0} [{1}]", series, videoFilesStopwatch.Elapsed);
var decisionsStopwatch = Stopwatch.StartNew();
var decisions = _importDecisionMaker.GetImportDecisions(mediaFileList, series);
decisionsStopwatch.Stop();
_logger.Trace("Import decisions complete for: {0} [{1}]", series, decisionsStopwatch.Elapsed);
_importApprovedEpisodes.Import(decisions, false);
_logger.Info("Completed scanning disk for {0}", series.Title);
_eventAggregator.PublishEvent(new SeriesScannedEvent(series));
}
public string[] GetVideoFiles(string path, bool allDirectories = true)
{
_logger.Debug("Scanning '{0}' for video files", path);
var searchOption = allDirectories ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
var filesOnDisk = _diskProvider.GetFiles(path, searchOption);
var mediaFileList = filesOnDisk.Where(c => MediaFileExtensions.Extensions.Contains(Path.GetExtension(c).ToLower())).ToList();
_logger.Debug("{0} video files were found in {1}", mediaFileList.Count, path);
return mediaFileList.ToArray();
}
private IEnumerable<string> FilterFiles(Series series, IEnumerable<string> videoFiles)
{
return videoFiles.Where(file => !ExcludedSubFoldersRegex.IsMatch(series.Path.GetRelativePath(file)))
.Where(file => !ExcludedFoldersRegex.IsMatch(file));
}
private void SetPermissions(String path)
{
if (!_configService.SetPermissionsLinux)
{
return;
}
try
{
var permissions = _configService.FolderChmod;
_diskProvider.SetPermissions(path, permissions, _configService.ChownUser, _configService.ChownGroup);
}
catch (Exception ex)
{
_logger.WarnException("Unable to apply permissions to: " + path, ex);
_logger.DebugException(ex.Message, ex);
}
}
public void Handle(SeriesUpdatedEvent message)
{
Scan(message.Series);
}
public void Execute(RescanSeriesCommand message)
{
if (message.SeriesId.HasValue)
{
var series = _seriesService.GetSeries(message.SeriesId.Value);
Scan(series);
}
else
{
var allSeries = _seriesService.GetAllSeries();
foreach (var series in allSeries)
{
Scan(series);
}
}
}
}
}