105 lines
3.6 KiB
C#
105 lines
3.6 KiB
C#
using System;
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using System.IO;
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using System.Linq;
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using NLog;
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using NzbDrone.Common;
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namespace NzbDrone.Update.Providers
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{
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public class UpdateProvider
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{
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private readonly DiskProvider _diskProvider;
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private readonly ServiceProvider _serviceProvider;
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private readonly ProcessProvider _processProvider;
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private readonly PathProvider _pathProvider;
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private static readonly Logger logger = LogManager.GetCurrentClassLogger();
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public UpdateProvider(DiskProvider diskProvider,ServiceProvider serviceProvider,
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ProcessProvider processProvider, PathProvider pathProvider)
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{
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_diskProvider = diskProvider;
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_serviceProvider = serviceProvider;
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_processProvider = processProvider;
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_pathProvider = pathProvider;
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}
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private void Verify(string installationFolder)
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{
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logger.Info("Verifying requirements before update...");
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if (String.IsNullOrWhiteSpace(installationFolder))
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throw new ArgumentException("Target folder can not be null or empty");
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if (!_diskProvider.FolderExists(installationFolder))
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throw new DirectoryNotFoundException("Target folder doesn't exist" + installationFolder);
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logger.Info("Verifying Update Folder");
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if (!_diskProvider.FolderExists(_pathProvider.UpdatePackageFolder))
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throw new DirectoryNotFoundException("Update folder doesn't exist" + _pathProvider.UpdateSandboxFolder);
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}
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public void Start(string targetFolder)
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{
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Verify(targetFolder);
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bool isService = false;
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logger.Info("Stopping all running services");
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if (_serviceProvider.ServiceExist(ServiceProvider.NZBDRONE_SERVICE_NAME))
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{
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if (_serviceProvider.IsServiceRunning(ServiceProvider.NZBDRONE_SERVICE_NAME))
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{
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isService = true;
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}
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_serviceProvider.Stop(ServiceProvider.NZBDRONE_SERVICE_NAME);
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}
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logger.Info("Killing all running processes");
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var processes = _processProvider.GetProcessByName(ProcessProvider.NzbDroneProccessName);
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foreach (var processInfo in processes)
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{
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_processProvider.Kill(processInfo.Id);
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}
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logger.Info("Creating backup of existing installation");
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_diskProvider.CopyDirectory(targetFolder, _pathProvider.UpdateBackUpFolder);
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logger.Info("Copying update package to target");
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try
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{
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_diskProvider.CopyDirectory(_pathProvider.UpdatePackageFolder, targetFolder);
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}
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catch (Exception e)
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{
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RollBack(targetFolder);
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logger.Fatal("Failed to copy upgrade package to target folder.", e);
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}
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finally
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{
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StartNzbDrone(isService, targetFolder);
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}
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}
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private void RollBack(string targetFolder)
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{
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logger.Info("Attempting to rollback upgrade");
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_diskProvider.CopyDirectory(_pathProvider.UpdateBackUpFolder, targetFolder);
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}
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private void StartNzbDrone(bool isService, string targetFolder)
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{
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if (isService)
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{
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_serviceProvider.Start(ServiceProvider.NZBDRONE_SERVICE_NAME);
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}
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else
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{
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_processProvider.Start(Path.Combine(targetFolder, "nzbdrone.exe"));
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}
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}
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}
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}
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