465 lines
18 KiB
C#
465 lines
18 KiB
C#
using System;
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using System.Diagnostics;
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using System.IO;
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using System.Linq;
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using System.Net;
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using System.Net.Security;
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using System.Reflection;
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using System.Runtime.InteropServices;
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using System.Text.RegularExpressions;
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using System.Threading;
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using System.Threading.Tasks;
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using CommandLine;
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using Emby.Drawing;
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using Emby.Server.Implementations;
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using Emby.Server.Implementations.IO;
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using Emby.Server.Implementations.Networking;
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using Jellyfin.Drawing.Skia;
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using MediaBrowser.Common.Configuration;
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using MediaBrowser.Controller.Drawing;
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using MediaBrowser.Model.Globalization;
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using Microsoft.Extensions.Configuration;
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using Microsoft.Extensions.DependencyInjection;
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using Microsoft.Extensions.Logging;
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using Serilog;
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using Serilog.Extensions.Logging;
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using SQLitePCL;
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using ILogger = Microsoft.Extensions.Logging.ILogger;
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namespace Jellyfin.Server
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{
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/// <summary>
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/// Class containing the entry point of the application.
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/// </summary>
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public static class Program
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{
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private static readonly CancellationTokenSource _tokenSource = new CancellationTokenSource();
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private static readonly ILoggerFactory _loggerFactory = new SerilogLoggerFactory();
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private static ILogger _logger;
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private static bool _restartOnShutdown;
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/// <summary>
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/// The entry point of the application.
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/// </summary>
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/// <param name="args">The command line arguments passed.</param>
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/// <returns><see cref="Task" />.</returns>
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public static Task Main(string[] args)
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{
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// For backwards compatibility.
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// Modify any input arguments now which start with single-hyphen to POSIX standard
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// double-hyphen to allow parsing by CommandLineParser package.
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const string Pattern = @"^(-[^-\s]{2})"; // Match -xx, not -x, not --xx, not xx
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const string Substitution = @"-$1"; // Prepend with additional single-hyphen
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var regex = new Regex(Pattern);
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for (var i = 0; i < args.Length; i++)
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{
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args[i] = regex.Replace(args[i], Substitution);
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}
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// Parse the command line arguments and either start the app or exit indicating error
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return Parser.Default.ParseArguments<StartupOptions>(args)
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.MapResult(StartApp, _ => Task.CompletedTask);
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}
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/// <summary>
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/// Shuts down the application.
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/// </summary>
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internal static void Shutdown()
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{
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if (!_tokenSource.IsCancellationRequested)
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{
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_tokenSource.Cancel();
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}
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}
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/// <summary>
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/// Restarts the application.
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/// </summary>
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internal static void Restart()
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{
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_restartOnShutdown = true;
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Shutdown();
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}
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private static async Task StartApp(StartupOptions options)
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{
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ServerApplicationPaths appPaths = CreateApplicationPaths(options);
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// $JELLYFIN_LOG_DIR needs to be set for the logger configuration manager
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Environment.SetEnvironmentVariable("JELLYFIN_LOG_DIR", appPaths.LogDirectoryPath);
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IConfiguration appConfig = await CreateConfiguration(appPaths).ConfigureAwait(false);
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CreateLogger(appConfig, appPaths);
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_logger = _loggerFactory.CreateLogger("Main");
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AppDomain.CurrentDomain.UnhandledException += (sender, e)
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=> _logger.LogCritical((Exception)e.ExceptionObject, "Unhandled Exception");
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// Intercept Ctrl+C and Ctrl+Break
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Console.CancelKeyPress += (sender, e) =>
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{
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if (_tokenSource.IsCancellationRequested)
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{
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return; // Already shutting down
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}
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e.Cancel = true;
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_logger.LogInformation("Ctrl+C, shutting down");
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Environment.ExitCode = 128 + 2;
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Shutdown();
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};
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// Register a SIGTERM handler
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AppDomain.CurrentDomain.ProcessExit += (sender, e) =>
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{
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if (_tokenSource.IsCancellationRequested)
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{
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return; // Already shutting down
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}
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_logger.LogInformation("Received a SIGTERM signal, shutting down");
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Environment.ExitCode = 128 + 15;
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Shutdown();
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};
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_logger.LogInformation("Jellyfin version: {Version}", Assembly.GetEntryAssembly().GetName().Version);
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ApplicationHost.LogEnvironmentInfo(_logger, appPaths);
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// Increase the max http request limit
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// The default connection limit is 10 for ASP.NET hosted applications and 2 for all others.
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ServicePointManager.DefaultConnectionLimit = Math.Max(96, ServicePointManager.DefaultConnectionLimit);
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// Disable the "Expect: 100-Continue" header by default
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// http://stackoverflow.com/questions/566437/http-post-returns-the-error-417-expectation-failed-c
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ServicePointManager.Expect100Continue = false;
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// CA5359: Do Not Disable Certificate Validation
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#pragma warning disable CA5359
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// Allow all https requests
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ServicePointManager.ServerCertificateValidationCallback = new RemoteCertificateValidationCallback(delegate { return true; });
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#pragma warning restore CA5359
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Batteries_V2.Init();
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if (raw.sqlite3_enable_shared_cache(1) != raw.SQLITE_OK)
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{
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_logger.LogWarning("Failed to enable shared cache for SQLite");
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}
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var appHost = new CoreAppHost(
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appPaths,
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_loggerFactory,
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options,
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new ManagedFileSystem(_loggerFactory.CreateLogger<ManagedFileSystem>(), appPaths),
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new NullImageEncoder(),
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new NetworkManager(_loggerFactory.CreateLogger<NetworkManager>()),
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appConfig);
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try
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{
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await appHost.InitAsync(new ServiceCollection()).ConfigureAwait(false);
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appHost.ImageProcessor.ImageEncoder = GetImageEncoder(appPaths, appHost.LocalizationManager);
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await appHost.RunStartupTasksAsync().ConfigureAwait(false);
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// Block main thread until shutdown
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await Task.Delay(-1, _tokenSource.Token).ConfigureAwait(false);
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}
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catch (TaskCanceledException)
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{
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// Don't throw on cancellation
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}
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catch (Exception ex)
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{
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_logger.LogCritical(ex, "Error while starting server.");
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}
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finally
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{
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appHost?.Dispose();
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}
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if (_restartOnShutdown)
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{
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StartNewInstance(options);
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}
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}
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/// <summary>
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/// Create the data, config and log paths from the variety of inputs(command line args,
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/// environment variables) or decide on what default to use. For Windows it's %AppPath%
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/// for everything else the
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/// <a href="https://specifications.freedesktop.org/basedir-spec/basedir-spec-latest.html">XDG approach</a>
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/// is followed.
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/// </summary>
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/// <param name="options">The <see cref="StartupOptions" /> for this instance.</param>
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/// <returns><see cref="ServerApplicationPaths" />.</returns>
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private static ServerApplicationPaths CreateApplicationPaths(StartupOptions options)
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{
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// dataDir
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// IF --datadir
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// ELSE IF $JELLYFIN_DATA_DIR
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// ELSE IF windows, use <%APPDATA%>/jellyfin
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// ELSE IF $XDG_DATA_HOME then use $XDG_DATA_HOME/jellyfin
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// ELSE use $HOME/.local/share/jellyfin
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var dataDir = options.DataDir;
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if (string.IsNullOrEmpty(dataDir))
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{
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dataDir = Environment.GetEnvironmentVariable("JELLYFIN_DATA_DIR");
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if (string.IsNullOrEmpty(dataDir))
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{
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// LocalApplicationData follows the XDG spec on unix machines
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dataDir = Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.LocalApplicationData),
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"jellyfin");
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}
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}
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// configDir
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// IF --configdir
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// ELSE IF $JELLYFIN_CONFIG_DIR
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// ELSE IF --datadir, use <datadir>/config (assume portable run)
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// ELSE IF <datadir>/config exists, use that
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// ELSE IF windows, use <datadir>/config
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// ELSE IF $XDG_CONFIG_HOME use $XDG_CONFIG_HOME/jellyfin
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// ELSE $HOME/.config/jellyfin
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var configDir = options.ConfigDir;
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if (string.IsNullOrEmpty(configDir))
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{
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configDir = Environment.GetEnvironmentVariable("JELLYFIN_CONFIG_DIR");
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if (string.IsNullOrEmpty(configDir))
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{
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if (options.DataDir != null
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|| Directory.Exists(Path.Combine(dataDir, "config"))
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|| RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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// Hang config folder off already set dataDir
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configDir = Path.Combine(dataDir, "config");
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}
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else
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{
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// $XDG_CONFIG_HOME defines the base directory relative to which
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// user specific configuration files should be stored.
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configDir = Environment.GetEnvironmentVariable("XDG_CONFIG_HOME");
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// If $XDG_CONFIG_HOME is either not set or empty,
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// a default equal to $HOME /.config should be used.
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if (string.IsNullOrEmpty(configDir))
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{
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configDir = Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
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".config");
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}
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configDir = Path.Combine(configDir, "jellyfin");
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}
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}
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}
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// cacheDir
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// IF --cachedir
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// ELSE IF $JELLYFIN_CACHE_DIR
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// ELSE IF windows, use <datadir>/cache
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// ELSE IF XDG_CACHE_HOME, use $XDG_CACHE_HOME/jellyfin
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// ELSE HOME/.cache/jellyfin
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var cacheDir = options.CacheDir;
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if (string.IsNullOrEmpty(cacheDir))
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{
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cacheDir = Environment.GetEnvironmentVariable("JELLYFIN_CACHE_DIR");
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if (string.IsNullOrEmpty(cacheDir))
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{
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if (RuntimeInformation.IsOSPlatform(OSPlatform.Windows))
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{
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// Hang cache folder off already set dataDir
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cacheDir = Path.Combine(dataDir, "cache");
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}
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else
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{
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// $XDG_CACHE_HOME defines the base directory relative to which
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// user specific non-essential data files should be stored.
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cacheDir = Environment.GetEnvironmentVariable("XDG_CACHE_HOME");
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// If $XDG_CACHE_HOME is either not set or empty,
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// a default equal to $HOME/.cache should be used.
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if (string.IsNullOrEmpty(cacheDir))
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{
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cacheDir = Path.Combine(
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Environment.GetFolderPath(Environment.SpecialFolder.UserProfile),
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".cache");
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}
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cacheDir = Path.Combine(cacheDir, "jellyfin");
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}
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}
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}
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// webDir
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// IF --webdir
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// ELSE IF $JELLYFIN_WEB_DIR
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// ELSE use <bindir>/jellyfin-web
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var webDir = options.WebDir;
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if (string.IsNullOrEmpty(webDir))
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{
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webDir = Environment.GetEnvironmentVariable("JELLYFIN_WEB_DIR");
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if (string.IsNullOrEmpty(webDir))
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{
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// Use default location under ResourcesPath
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webDir = Path.Combine(AppContext.BaseDirectory, "jellyfin-web");
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}
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}
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// logDir
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// IF --logdir
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// ELSE IF $JELLYFIN_LOG_DIR
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// ELSE IF --datadir, use <datadir>/log (assume portable run)
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// ELSE <datadir>/log
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var logDir = options.LogDir;
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if (string.IsNullOrEmpty(logDir))
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{
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logDir = Environment.GetEnvironmentVariable("JELLYFIN_LOG_DIR");
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if (string.IsNullOrEmpty(logDir))
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{
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// Hang log folder off already set dataDir
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logDir = Path.Combine(dataDir, "log");
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}
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}
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// Ensure the main folders exist before we continue
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try
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{
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Directory.CreateDirectory(dataDir);
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Directory.CreateDirectory(logDir);
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Directory.CreateDirectory(configDir);
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Directory.CreateDirectory(cacheDir);
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}
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catch (IOException ex)
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{
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Console.Error.WriteLine("Error whilst attempting to create folder");
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Console.Error.WriteLine(ex.ToString());
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Environment.Exit(1);
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}
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return new ServerApplicationPaths(dataDir, logDir, configDir, cacheDir, webDir);
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}
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private static async Task<IConfiguration> CreateConfiguration(IApplicationPaths appPaths)
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{
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string configPath = Path.Combine(appPaths.ConfigurationDirectoryPath, "logging.json");
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if (!File.Exists(configPath))
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{
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// For some reason the csproj name is used instead of the assembly name
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using (Stream rscstr = typeof(Program).Assembly
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.GetManifestResourceStream("Jellyfin.Server.Resources.Configuration.logging.json"))
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using (Stream fstr = File.Open(configPath, FileMode.CreateNew))
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{
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await rscstr.CopyToAsync(fstr).ConfigureAwait(false);
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}
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}
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return new ConfigurationBuilder()
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.SetBasePath(appPaths.ConfigurationDirectoryPath)
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.AddJsonFile("logging.json")
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.AddEnvironmentVariables("JELLYFIN_")
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.AddInMemoryCollection(ConfigurationOptions.Configuration)
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.Build();
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}
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private static void CreateLogger(IConfiguration configuration, IApplicationPaths appPaths)
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{
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try
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{
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// Serilog.Log is used by SerilogLoggerFactory when no logger is specified
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Serilog.Log.Logger = new LoggerConfiguration()
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.ReadFrom.Configuration(configuration)
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.Enrich.FromLogContext()
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.CreateLogger();
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}
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catch (Exception ex)
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{
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Serilog.Log.Logger = new LoggerConfiguration()
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.WriteTo.Console(outputTemplate: "[{Timestamp:HH:mm:ss}] [{Level:u3}] {Message:lj}{NewLine}{Exception}")
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.WriteTo.Async(x => x.File(
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Path.Combine(appPaths.LogDirectoryPath, "log_.log"),
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rollingInterval: RollingInterval.Day,
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outputTemplate: "[{Timestamp:yyyy-MM-dd HH:mm:ss.fff zzz}] [{Level:u3}] {Message}{NewLine}{Exception}"))
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.Enrich.FromLogContext()
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.CreateLogger();
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Serilog.Log.Logger.Fatal(ex, "Failed to create/read logger configuration");
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}
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}
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private static IImageEncoder GetImageEncoder(
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IApplicationPaths appPaths,
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ILocalizationManager localizationManager)
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{
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try
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{
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// Test if the native lib is available
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SkiaEncoder.TestSkia();
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return new SkiaEncoder(
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_loggerFactory.CreateLogger<SkiaEncoder>(),
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appPaths,
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localizationManager);
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}
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catch (Exception ex)
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{
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_logger.LogWarning(ex, "Skia not available. Will fallback to NullIMageEncoder.");
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}
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return new NullImageEncoder();
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}
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private static void StartNewInstance(StartupOptions options)
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{
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_logger.LogInformation("Starting new instance");
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string module = options.RestartPath;
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if (string.IsNullOrWhiteSpace(module))
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{
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module = Environment.GetCommandLineArgs()[0];
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}
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string commandLineArgsString;
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if (options.RestartArgs != null)
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{
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commandLineArgsString = options.RestartArgs ?? string.Empty;
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}
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else
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{
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commandLineArgsString = string.Join(
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' ',
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Environment.GetCommandLineArgs().Skip(1).Select(NormalizeCommandLineArgument));
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}
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_logger.LogInformation("Executable: {0}", module);
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_logger.LogInformation("Arguments: {0}", commandLineArgsString);
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Process.Start(module, commandLineArgsString);
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}
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private static string NormalizeCommandLineArgument(string arg)
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{
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if (!arg.Contains(" ", StringComparison.OrdinalIgnoreCase))
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{
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return arg;
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}
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return "\"" + arg + "\"";
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}
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}
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}
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