jellyfin-server/MediaBrowser.Common.Implementations/ScheduledTasks/Tasks/SystemUpdateTask.cs
Eric Reed 3657ef952d First step of actual update
We will now need a bootstrapper to complete the update on startup
2013-02-28 16:04:11 -05:00

144 lines
4.6 KiB
C#

using MediaBrowser.Common.Kernel;
using MediaBrowser.Common.ScheduledTasks;
using MediaBrowser.Model.Logging;
using System;
using System.Collections.Generic;
using System.Threading;
using System.Threading.Tasks;
namespace MediaBrowser.Common.Implementations.ScheduledTasks.Tasks
{
/// <summary>
/// Plugin Update Task
/// </summary>
public class SystemUpdateTask : IScheduledTask
{
/// <summary>
/// The _app host
/// </summary>
private readonly IApplicationHost _appHost;
/// <summary>
/// Gets or sets the kernel.
/// </summary>
/// <value>The kernel.</value>
private IKernel Kernel { get; set; }
/// <summary>
/// Gets or sets the logger.
/// </summary>
/// <value>The logger.</value>
private ILogger Logger { get; set; }
/// <summary>
/// Initializes a new instance of the <see cref="SystemUpdateTask" /> class.
/// </summary>
/// <param name="appHost">The app host.</param>
/// <param name="kernel">The kernel.</param>
/// <param name="logger">The logger.</param>
public SystemUpdateTask(IApplicationHost appHost, IKernel kernel, ILogger logger)
{
_appHost = appHost;
Kernel = kernel;
Logger = logger;
}
/// <summary>
/// Creates the triggers that define when the task will run
/// </summary>
/// <returns>IEnumerable{BaseTaskTrigger}.</returns>
public IEnumerable<ITaskTrigger> GetDefaultTriggers()
{
return new ITaskTrigger[] {
// 1am
new DailyTrigger { TimeOfDay = TimeSpan.FromHours(1) },
new IntervalTrigger { Interval = TimeSpan.FromHours(2)}
};
}
/// <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 async Task Execute(CancellationToken cancellationToken, IProgress<double> progress)
{
if (!_appHost.CanSelfUpdate) return;
EventHandler<double> innerProgressHandler = (sender, e) => progress.Report(e * .1);
// Create a progress object for the update check
var innerProgress = new Progress<double>();
innerProgress.ProgressChanged += innerProgressHandler;
var updateInfo = await _appHost.CheckForApplicationUpdate(cancellationToken, innerProgress).ConfigureAwait(false);
// Release the event handler
innerProgress.ProgressChanged -= innerProgressHandler;
progress.Report(10);
//>>> FOR TESTING
//if (!updateInfo.IsUpdateAvailable)
//{
// progress.Report(100);
// return;
//}
cancellationToken.ThrowIfCancellationRequested();
if (Kernel.Configuration.EnableAutoUpdate)
{
Logger.Info("Update Revision {0} available. Updating...", updateInfo.AvailableVersion);
innerProgressHandler = (sender, e) => progress.Report((e * .9) + .1);
innerProgress = new Progress<double>();
innerProgress.ProgressChanged += innerProgressHandler;
await _appHost.UpdateApplication(updateInfo.Package, cancellationToken, innerProgress).ConfigureAwait(false);
// Release the event handler
innerProgress.ProgressChanged -= innerProgressHandler;
Kernel.OnApplicationUpdated(updateInfo.AvailableVersion);
}
else
{
Logger.Info("A new version of Media Browser is available.");
}
progress.Report(100);
}
/// <summary>
/// Gets the name of the task
/// </summary>
/// <value>The name.</value>
public string Name
{
get { return "Check for application updates"; }
}
/// <summary>
/// Gets the description.
/// </summary>
/// <value>The description.</value>
public string Description
{
get { return "Downloads and installs application updates."; }
}
/// <summary>
/// Gets the category.
/// </summary>
/// <value>The category.</value>
public string Category
{
get { return "Application"; }
}
}
}