using MediaBrowser.Common.Configuration; using MediaBrowser.Common.IO; using MediaBrowser.Common.ScheduledTasks; using System; using System.Collections.Generic; using System.IO; using System.Linq; using System.Threading; using System.Threading.Tasks; namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks { /// /// Deletes old log files /// public class DeleteLogFileTask : IScheduledTask { /// /// Gets or sets the configuration manager. /// /// The configuration manager. private IConfigurationManager ConfigurationManager { get; set; } private readonly IFileSystem _fileSystem; /// /// Initializes a new instance of the class. /// /// The configuration manager. public DeleteLogFileTask(IConfigurationManager configurationManager, IFileSystem fileSystem) { ConfigurationManager = configurationManager; _fileSystem = fileSystem; } /// /// Creates the triggers that define when the task will run /// /// IEnumerable{BaseTaskTrigger}. public IEnumerable GetDefaultTriggers() { // Until we can vary these default triggers per server and MBT, we need something that makes sense for both return new ITaskTrigger[] { // At startup new StartupTrigger (), // Every so often new IntervalTrigger { Interval = TimeSpan.FromHours(24)} }; } /// /// Returns the task to be executed /// /// The cancellation token. /// The progress. /// Task. public Task Execute(CancellationToken cancellationToken, IProgress progress) { // Delete log files more than n days old var minDateModified = DateTime.UtcNow.AddDays(-(ConfigurationManager.CommonConfiguration.LogFileRetentionDays)); var filesToDelete = new DirectoryInfo(ConfigurationManager.CommonApplicationPaths.LogDirectoryPath).EnumerateFileSystemInfos("*", SearchOption.AllDirectories) .Where(f => _fileSystem.GetLastWriteTimeUtc(f) < minDateModified) .ToList(); var index = 0; foreach (var file in filesToDelete) { double percent = index; percent /= filesToDelete.Count; progress.Report(100 * percent); cancellationToken.ThrowIfCancellationRequested(); File.Delete(file.FullName); index++; } progress.Report(100); return Task.FromResult(true); } /// /// Gets the name of the task /// /// The name. public string Name { get { return "Log file cleanup"; } } /// /// Gets the description. /// /// The description. public string Description { get { return string.Format("Deletes log files that are more than {0} days old.", ConfigurationManager.CommonConfiguration.LogFileRetentionDays); } } /// /// Gets the category. /// /// The category. public string Category { get { return "Maintenance"; } } } }