Lidarr/NzbDrone.Core/MediaFiles/DiskScanService.cs

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C#
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using System.Collections.Generic;
using System.IO;
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using System.Linq;
using NLog;
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using NzbDrone.Common;
using NzbDrone.Common.Instrumentation;
using NzbDrone.Common.Messaging;
using NzbDrone.Core.MediaFiles.Commands;
using NzbDrone.Core.MediaFiles.EpisodeImport;
using NzbDrone.Core.Tv;
using NzbDrone.Core.Tv.Events;
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namespace NzbDrone.Core.MediaFiles
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{
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public interface IDiskScanService
{
string[] GetVideoFiles(string path, bool allDirectories = true);
}
public class DiskScanService :
IDiskScanService,
IHandle<SeriesUpdatedEvent>
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{
private readonly HashSet<string> _mediaExtensions;
private const string EXTENSIONS =
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//XBMC
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".m4v .3gp .nsv .ts .ty .strm .rm .rmvb .m3u .ifo .mov .qt .divx .xvid .bivx .vob .nrg .img " +
".iso .pva .wmv .asf .asx .ogm .m2v .avi .bin .dat .dvr-ms .mpg .mpeg .mp4 .mkv .avc .vp3 " +
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".svq3 .nuv .viv .dv .fli .flv .wpl " +
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//Other
".m2ts";
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private readonly IDiskProvider _diskProvider;
private readonly IMakeImportDecision _importDecisionMaker;
private readonly IImportApprovedEpisodes _importApprovedEpisodes;
private readonly IMessageAggregator _messageAggregator;
private readonly Logger _logger;
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public DiskScanService(IDiskProvider diskProvider,
IMakeImportDecision importDecisionMaker,
IImportApprovedEpisodes importApprovedEpisodes,
IMessageAggregator messageAggregator, Logger logger)
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{
_diskProvider = diskProvider;
_importDecisionMaker = importDecisionMaker;
_importApprovedEpisodes = importApprovedEpisodes;
_messageAggregator = messageAggregator;
_logger = logger;
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_mediaExtensions = new HashSet<string>(EXTENSIONS.Split(' ').Select(c => c.ToLower()));
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}
private void Scan(Series series)
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{
_logger.Progress("Starting disk scan for {0}", series.Title);
_messageAggregator.PublishCommand(new CleanMediaFileDb(series.Id));
if (!_diskProvider.FolderExists(series.Path))
{
_logger.Debug("Series folder doesn't exist: {0}", series.Path);
return;
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}
var mediaFileList = GetVideoFiles(series.Path);
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var decisions = _importDecisionMaker.GetImportDecisions(mediaFileList, series, false);
_importApprovedEpisodes.Import(decisions);
_logger.Complete("Completed disk scan for {0}", series.Title);
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}
public string[] GetVideoFiles(string path, bool allDirectories = true)
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{
_logger.Debug("Scanning '{0}' for video files", path);
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var searchOption = allDirectories ? SearchOption.AllDirectories : SearchOption.TopDirectoryOnly;
var filesOnDisk = _diskProvider.GetFiles(path, searchOption);
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var mediaFileList = filesOnDisk.Where(c => _mediaExtensions.Contains(Path.GetExtension(c).ToLower())).ToList();
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_logger.Trace("{0} video files were found in {1}", mediaFileList.Count, path);
return mediaFileList.ToArray();
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}
public void Handle(SeriesUpdatedEvent message)
{
Scan(message.Series);
}
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}
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}