jellyfin/MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/DeleteLogFileTask.cs

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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Common.ScheduledTasks;
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using System;
using System.Collections.Generic;
using System.IO;
using System.Linq;
using System.Threading;
using System.Threading.Tasks;
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namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
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{
/// <summary>
/// Deletes old log files
/// </summary>
public class DeleteLogFileTask : IScheduledTask
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{
/// <summary>
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/// Gets or sets the configuration manager.
/// </summary>
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/// <value>The configuration manager.</value>
private IConfigurationManager ConfigurationManager { get; set; }
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/// <summary>
/// Initializes a new instance of the <see cref="DeleteLogFileTask" /> class.
/// </summary>
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/// <param name="configurationManager">The configuration manager.</param>
public DeleteLogFileTask(IConfigurationManager configurationManager)
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{
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ConfigurationManager = configurationManager;
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}
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/// <summary>
/// Creates the triggers that define when the task will run
/// </summary>
/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
public IEnumerable<ITaskTrigger> GetDefaultTriggers()
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{
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// 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 (),
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// Every so often
new IntervalTrigger { Interval = TimeSpan.FromHours(24)}
};
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}
/// <summary>
/// Returns the task to be executed
/// </summary>
/// <param name="cancellationToken">The cancellation token.</param>
/// <param name="progress">The progress.</param>
/// <returns>Task.</returns>
public Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
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{
// 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 => f.LastWriteTimeUtc < minDateModified)
.ToList();
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var index = 0;
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foreach (var file in filesToDelete)
{
double percent = index;
percent /= filesToDelete.Count;
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progress.Report(100 * percent);
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cancellationToken.ThrowIfCancellationRequested();
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File.Delete(file.FullName);
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index++;
}
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progress.Report(100);
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return Task.FromResult(true);
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}
/// <summary>
/// Gets the name of the task
/// </summary>
/// <value>The name.</value>
public string Name
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{
get { return "Log file cleanup"; }
}
/// <summary>
/// Gets the description.
/// </summary>
/// <value>The description.</value>
public string Description
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{
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get { return string.Format("Deletes log files that are more than {0} days old.", ConfigurationManager.CommonConfiguration.LogFileRetentionDays); }
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}
/// <summary>
/// Gets the category.
/// </summary>
/// <value>The category.</value>
public string Category
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{
get
{
return "Maintenance";
}
}
}
}