mirror of
https://github.com/jellyfin/jellyfin.git
synced 2025-06-23 15:30:56 -04:00
452 lines
22 KiB
C#
452 lines
22 KiB
C#
using System;
|
|
using System.Collections.Generic;
|
|
using System.Globalization;
|
|
using System.IO;
|
|
using System.Linq;
|
|
using System.Reflection;
|
|
using System.Threading;
|
|
using System.Threading.Tasks;
|
|
using Emby.Server.Implementations.Serialization;
|
|
using Jellyfin.Database.Implementations;
|
|
using Jellyfin.Server.Implementations.SystemBackupService;
|
|
using Jellyfin.Server.Migrations.Stages;
|
|
using Jellyfin.Server.ServerSetupApp;
|
|
using MediaBrowser.Common.Configuration;
|
|
using MediaBrowser.Controller.SystemBackupService;
|
|
using MediaBrowser.Model.Configuration;
|
|
using Microsoft.EntityFrameworkCore;
|
|
using Microsoft.EntityFrameworkCore.Infrastructure;
|
|
using Microsoft.EntityFrameworkCore.Migrations;
|
|
using Microsoft.Extensions.Logging;
|
|
|
|
namespace Jellyfin.Server.Migrations;
|
|
|
|
/// <summary>
|
|
/// Handles Migration of the Jellyfin data structure.
|
|
/// </summary>
|
|
internal class JellyfinMigrationService
|
|
{
|
|
private const string DbFilename = "library.db";
|
|
private readonly IDbContextFactory<JellyfinDbContext> _dbContextFactory;
|
|
private readonly ILoggerFactory _loggerFactory;
|
|
private readonly IStartupLogger _startupLogger;
|
|
private readonly IBackupService? _backupService;
|
|
private readonly IJellyfinDatabaseProvider? _jellyfinDatabaseProvider;
|
|
private readonly IApplicationPaths _applicationPaths;
|
|
private (string? LibraryDb, string? JellyfinDb, BackupManifestDto? FullBackup) _backupKey;
|
|
|
|
/// <summary>
|
|
/// Initializes a new instance of the <see cref="JellyfinMigrationService"/> class.
|
|
/// </summary>
|
|
/// <param name="dbContextFactory">Provides access to the jellyfin database.</param>
|
|
/// <param name="loggerFactory">The logger factory.</param>
|
|
/// <param name="startupLogger">The startup logger for Startup UI intigration.</param>
|
|
/// <param name="applicationPaths">Application paths for library.db backup.</param>
|
|
/// <param name="backupService">The jellyfin backup service.</param>
|
|
/// <param name="jellyfinDatabaseProvider">The jellyfin database provider.</param>
|
|
public JellyfinMigrationService(
|
|
IDbContextFactory<JellyfinDbContext> dbContextFactory,
|
|
ILoggerFactory loggerFactory,
|
|
IStartupLogger<JellyfinMigrationService> startupLogger,
|
|
IApplicationPaths applicationPaths,
|
|
IBackupService? backupService = null,
|
|
IJellyfinDatabaseProvider? jellyfinDatabaseProvider = null)
|
|
{
|
|
_dbContextFactory = dbContextFactory;
|
|
_loggerFactory = loggerFactory;
|
|
_startupLogger = startupLogger;
|
|
_backupService = backupService;
|
|
_jellyfinDatabaseProvider = jellyfinDatabaseProvider;
|
|
_applicationPaths = applicationPaths;
|
|
#pragma warning disable CS0618 // Type or member is obsolete
|
|
Migrations = [.. typeof(IMigrationRoutine).Assembly.GetTypes().Where(e => typeof(IMigrationRoutine).IsAssignableFrom(e) || typeof(IAsyncMigrationRoutine).IsAssignableFrom(e))
|
|
.Select(e => (Type: e, Metadata: e.GetCustomAttribute<JellyfinMigrationAttribute>(), Backup: e.GetCustomAttributes<JellyfinMigrationBackupAttribute>()))
|
|
.Where(e => e.Metadata != null)
|
|
.GroupBy(e => e.Metadata!.Stage)
|
|
.Select(f =>
|
|
{
|
|
var stage = new MigrationStage(f.Key);
|
|
foreach (var item in f)
|
|
{
|
|
JellyfinMigrationBackupAttribute? backupMetadata = null;
|
|
if (item.Backup?.Any() == true)
|
|
{
|
|
backupMetadata = item.Backup.Aggregate(MergeBackupAttributes);
|
|
}
|
|
|
|
stage.Add(new(item.Type, item.Metadata!, backupMetadata));
|
|
}
|
|
|
|
return stage;
|
|
})];
|
|
#pragma warning restore CS0618 // Type or member is obsolete
|
|
}
|
|
|
|
private interface IInternalMigration
|
|
{
|
|
Task PerformAsync(IStartupLogger logger);
|
|
}
|
|
|
|
private HashSet<MigrationStage> Migrations { get; set; }
|
|
|
|
public async Task CheckFirstTimeRunOrMigration(IApplicationPaths appPaths)
|
|
{
|
|
var logger = _startupLogger.With(_loggerFactory.CreateLogger<JellyfinMigrationService>()).BeginGroup($"Migration Startup");
|
|
logger.LogInformation("Initialise Migration service.");
|
|
var xmlSerializer = new MyXmlSerializer();
|
|
var serverConfig = File.Exists(appPaths.SystemConfigurationFilePath)
|
|
? (ServerConfiguration)xmlSerializer.DeserializeFromFile(typeof(ServerConfiguration), appPaths.SystemConfigurationFilePath)!
|
|
: new ServerConfiguration();
|
|
if (!serverConfig.IsStartupWizardCompleted)
|
|
{
|
|
logger.LogInformation("System initialisation detected. Seed data.");
|
|
var flatApplyMigrations = Migrations.SelectMany(e => e.Where(f => !f.Metadata.RunMigrationOnSetup)).ToArray();
|
|
|
|
var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
|
|
await using (dbContext.ConfigureAwait(false))
|
|
{
|
|
var historyRepository = dbContext.GetService<IHistoryRepository>();
|
|
|
|
await historyRepository.CreateIfNotExistsAsync().ConfigureAwait(false);
|
|
var appliedMigrations = await dbContext.Database.GetAppliedMigrationsAsync().ConfigureAwait(false);
|
|
var startupScripts = flatApplyMigrations
|
|
.Where(e => !appliedMigrations.Any(f => f != e.BuildCodeMigrationId()))
|
|
.Select(e => (Migration: e.Metadata, Script: historyRepository.GetInsertScript(new HistoryRow(e.BuildCodeMigrationId(), GetJellyfinVersion()))))
|
|
.ToArray();
|
|
foreach (var item in startupScripts)
|
|
{
|
|
logger.LogInformation("Seed migration {Key}-{Name}.", item.Migration.Key, item.Migration.Name);
|
|
await dbContext.Database.ExecuteSqlRawAsync(item.Script).ConfigureAwait(false);
|
|
}
|
|
}
|
|
|
|
logger.LogInformation("Migration system initialisation completed.");
|
|
}
|
|
else
|
|
{
|
|
// migrate any existing migration.xml files
|
|
var migrationConfigPath = Path.Join(appPaths.ConfigurationDirectoryPath, "migrations.xml");
|
|
var migrationOptions = File.Exists(migrationConfigPath)
|
|
? (MigrationOptions)xmlSerializer.DeserializeFromFile(typeof(MigrationOptions), migrationConfigPath)!
|
|
: null;
|
|
if (migrationOptions != null && migrationOptions.Applied.Count > 0)
|
|
{
|
|
logger.LogInformation("Old migration style migration.xml detected. Migrate now.");
|
|
try
|
|
{
|
|
var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
|
|
await using (dbContext.ConfigureAwait(false))
|
|
{
|
|
var historyRepository = dbContext.GetService<IHistoryRepository>();
|
|
var appliedMigrations = await dbContext.Database.GetAppliedMigrationsAsync().ConfigureAwait(false);
|
|
var lastOldAppliedMigration = Migrations
|
|
.SelectMany(e => e.Where(e => e.Metadata.Key is not null)) // only consider migrations that have the key set as its the reference marker for legacy migrations.
|
|
.Where(e => migrationOptions.Applied.Any(f => f.Id.Equals(e.Metadata.Key!.Value)))
|
|
.Where(e => !appliedMigrations.Contains(e.BuildCodeMigrationId()))
|
|
.OrderBy(e => e.BuildCodeMigrationId())
|
|
.Last(); // this is the latest migration applied in the old migration.xml
|
|
|
|
IReadOnlyList<CodeMigration> oldMigrations = [
|
|
.. Migrations
|
|
.SelectMany(e => e)
|
|
.OrderBy(e => e.BuildCodeMigrationId())
|
|
.TakeWhile(e => e.BuildCodeMigrationId() != lastOldAppliedMigration.BuildCodeMigrationId()),
|
|
lastOldAppliedMigration
|
|
];
|
|
// those are all migrations that had to run in the old migration system, even if not noted in the migration.xml file.
|
|
|
|
var startupScripts = oldMigrations.Select(e => (Migration: e.Metadata, Script: historyRepository.GetInsertScript(new HistoryRow(e.BuildCodeMigrationId(), GetJellyfinVersion()))));
|
|
foreach (var item in startupScripts)
|
|
{
|
|
logger.LogInformation("Migrate migration {Key}-{Name}.", item.Migration.Key, item.Migration.Name);
|
|
await dbContext.Database.ExecuteSqlRawAsync(item.Script).ConfigureAwait(false);
|
|
}
|
|
|
|
logger.LogInformation("Rename old migration.xml to migration.xml.backup");
|
|
File.Move(migrationConfigPath, Path.ChangeExtension(migrationConfigPath, ".xml.backup"), true);
|
|
}
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
logger.LogCritical(ex, "Failed to apply migrations");
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public async Task MigrateStepAsync(JellyfinMigrationStageTypes stage, IServiceProvider? serviceProvider)
|
|
{
|
|
var logger = _startupLogger.With(_loggerFactory.CreateLogger<JellyfinMigrationService>()).BeginGroup($"Migrate stage {stage}.");
|
|
ICollection<CodeMigration> migrationStage = (Migrations.FirstOrDefault(e => e.Stage == stage) as ICollection<CodeMigration>) ?? [];
|
|
|
|
var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
|
|
await using (dbContext.ConfigureAwait(false))
|
|
{
|
|
var historyRepository = dbContext.GetService<IHistoryRepository>();
|
|
var migrationsAssembly = dbContext.GetService<IMigrationsAssembly>();
|
|
var appliedMigrations = await historyRepository.GetAppliedMigrationsAsync().ConfigureAwait(false);
|
|
var pendingCodeMigrations = migrationStage
|
|
.Where(e => appliedMigrations.All(f => f.MigrationId != e.BuildCodeMigrationId()))
|
|
.Select(e => (Key: e.BuildCodeMigrationId(), Migration: new InternalCodeMigration(e, serviceProvider, dbContext)))
|
|
.ToArray();
|
|
|
|
(string Key, InternalDatabaseMigration Migration)[] pendingDatabaseMigrations = [];
|
|
if (stage is JellyfinMigrationStageTypes.CoreInitialisation)
|
|
{
|
|
pendingDatabaseMigrations = migrationsAssembly.Migrations.Where(f => appliedMigrations.All(e => e.MigrationId != f.Key))
|
|
.Select(e => (Key: e.Key, Migration: new InternalDatabaseMigration(e, dbContext)))
|
|
.ToArray();
|
|
}
|
|
|
|
(string Key, IInternalMigration Migration)[] pendingMigrations = [.. pendingCodeMigrations, .. pendingDatabaseMigrations];
|
|
logger.LogInformation("There are {Pending} migrations for stage {Stage}.", pendingCodeMigrations.Length, stage);
|
|
var migrations = pendingMigrations.OrderBy(e => e.Key).ToArray();
|
|
|
|
foreach (var item in migrations)
|
|
{
|
|
var migrationLogger = logger.With(_loggerFactory.CreateLogger(item.Migration.GetType().Name)).BeginGroup($"{item.Key}");
|
|
try
|
|
{
|
|
migrationLogger.LogInformation("Perform migration {Name}", item.Key);
|
|
await item.Migration.PerformAsync(migrationLogger).ConfigureAwait(false);
|
|
migrationLogger.LogInformation("Migration {Name} was successfully applied", item.Key);
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
migrationLogger.LogCritical("Error: {Error}", ex.Message);
|
|
migrationLogger.LogError(ex, "Migration {Name} failed", item.Key);
|
|
|
|
if (_backupKey != default && _backupService is not null && _jellyfinDatabaseProvider is not null)
|
|
{
|
|
if (_backupKey.LibraryDb is not null)
|
|
{
|
|
migrationLogger.LogInformation("Attempt to rollback librarydb.");
|
|
try
|
|
{
|
|
var libraryDbPath = Path.Combine(_applicationPaths.DataPath, DbFilename);
|
|
File.Move(_backupKey.LibraryDb, libraryDbPath, true);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
migrationLogger.LogCritical(inner, "Could not rollback {LibraryPath}. Manual intervention might be required to restore a operational state.", _backupKey.LibraryDb);
|
|
}
|
|
}
|
|
|
|
if (_backupKey.JellyfinDb is not null)
|
|
{
|
|
migrationLogger.LogInformation("Attempt to rollback JellyfinDb.");
|
|
try
|
|
{
|
|
await _jellyfinDatabaseProvider.RestoreBackupFast(_backupKey.JellyfinDb, CancellationToken.None).ConfigureAwait(false);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
migrationLogger.LogCritical(inner, "Could not rollback {LibraryPath}. Manual intervention might be required to restore a operational state.", _backupKey.JellyfinDb);
|
|
}
|
|
}
|
|
|
|
if (_backupKey.FullBackup is not null)
|
|
{
|
|
migrationLogger.LogInformation("Attempt to rollback from backup.");
|
|
try
|
|
{
|
|
await _backupService.RestoreBackupAsync(_backupKey.FullBackup.Path).ConfigureAwait(false);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
migrationLogger.LogCritical(inner, "Could not rollback from backup {Backup}. Manual intervention might be required to restore a operational state.", _backupKey.FullBackup.Path);
|
|
}
|
|
}
|
|
}
|
|
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
private static string GetJellyfinVersion()
|
|
{
|
|
return Assembly.GetEntryAssembly()!.GetName().Version!.ToString();
|
|
}
|
|
|
|
public async Task CleanupSystemAfterMigration(ILogger logger)
|
|
{
|
|
if (_backupKey != default)
|
|
{
|
|
if (_backupKey.LibraryDb is not null)
|
|
{
|
|
logger.LogInformation("Attempt to cleanup librarydb backup.");
|
|
try
|
|
{
|
|
File.Delete(_backupKey.LibraryDb);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
logger.LogCritical(inner, "Could not cleanup {LibraryPath}.", _backupKey.LibraryDb);
|
|
}
|
|
}
|
|
|
|
if (_backupKey.JellyfinDb is not null && _jellyfinDatabaseProvider is not null)
|
|
{
|
|
logger.LogInformation("Attempt to cleanup JellyfinDb backup.");
|
|
try
|
|
{
|
|
await _jellyfinDatabaseProvider.DeleteBackup(_backupKey.JellyfinDb).ConfigureAwait(false);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
logger.LogCritical(inner, "Could not cleanup {LibraryPath}.", _backupKey.JellyfinDb);
|
|
}
|
|
}
|
|
|
|
if (_backupKey.FullBackup is not null)
|
|
{
|
|
logger.LogInformation("Attempt to cleanup from migration backup.");
|
|
try
|
|
{
|
|
File.Delete(_backupKey.FullBackup.Path);
|
|
}
|
|
catch (Exception inner)
|
|
{
|
|
logger.LogCritical(inner, "Could not cleanup backup {Backup}.", _backupKey.FullBackup.Path);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
public async Task PrepareSystemForMigration(ILogger logger)
|
|
{
|
|
logger.LogInformation("Prepare system for possible migrations");
|
|
JellyfinMigrationBackupAttribute backupInstruction;
|
|
IReadOnlyList<HistoryRow> appliedMigrations;
|
|
var dbContext = await _dbContextFactory.CreateDbContextAsync().ConfigureAwait(false);
|
|
await using (dbContext.ConfigureAwait(false))
|
|
{
|
|
var historyRepository = dbContext.GetService<IHistoryRepository>();
|
|
var migrationsAssembly = dbContext.GetService<IMigrationsAssembly>();
|
|
appliedMigrations = await historyRepository.GetAppliedMigrationsAsync().ConfigureAwait(false);
|
|
backupInstruction = new JellyfinMigrationBackupAttribute()
|
|
{
|
|
JellyfinDb = migrationsAssembly.Migrations.Any(f => appliedMigrations.All(e => e.MigrationId != f.Key))
|
|
};
|
|
}
|
|
|
|
backupInstruction = Migrations.SelectMany(e => e)
|
|
.Where(e => appliedMigrations.All(f => f.MigrationId != e.BuildCodeMigrationId()))
|
|
.Select(e => e.BackupRequirements)
|
|
.Where(e => e is not null)
|
|
.Aggregate(backupInstruction, MergeBackupAttributes!);
|
|
|
|
if (backupInstruction.LegacyLibraryDb)
|
|
{
|
|
logger.LogInformation("A migration will attempt to modify the library.db, will attempt to backup the file now.");
|
|
// for legacy migrations that still operates on the library.db
|
|
var libraryDbPath = Path.Combine(_applicationPaths.DataPath, DbFilename);
|
|
if (File.Exists(libraryDbPath))
|
|
{
|
|
for (int i = 1; ; i++)
|
|
{
|
|
var bakPath = string.Format(CultureInfo.InvariantCulture, "{0}.bak{1}", libraryDbPath, i);
|
|
if (!File.Exists(bakPath))
|
|
{
|
|
try
|
|
{
|
|
logger.LogInformation("Backing up {Library} to {BackupPath}", DbFilename, bakPath);
|
|
File.Copy(libraryDbPath, bakPath);
|
|
_backupKey = (bakPath, _backupKey.JellyfinDb, _backupKey.FullBackup);
|
|
logger.LogInformation("{Library} backed up to {BackupPath}", DbFilename, bakPath);
|
|
break;
|
|
}
|
|
catch (Exception ex)
|
|
{
|
|
logger.LogError(ex, "Cannot make a backup of {Library} at path {BackupPath}", DbFilename, bakPath);
|
|
throw;
|
|
}
|
|
}
|
|
}
|
|
|
|
logger.LogInformation("{Library} has been backed up as {BackupPath}", DbFilename, _backupKey.LibraryDb);
|
|
}
|
|
else
|
|
{
|
|
logger.LogError("Cannot make a backup of {Library} at path {BackupPath} because file could not be found at {LibraryPath}", DbFilename, libraryDbPath, _applicationPaths.DataPath);
|
|
}
|
|
}
|
|
|
|
if (backupInstruction.JellyfinDb && _jellyfinDatabaseProvider != null)
|
|
{
|
|
logger.LogInformation("A migration will attempt to modify the jellyfin.db, will attempt to backup the file now.");
|
|
_backupKey = (_backupKey.LibraryDb, await _jellyfinDatabaseProvider.MigrationBackupFast(CancellationToken.None).ConfigureAwait(false), _backupKey.FullBackup);
|
|
logger.LogInformation("Jellyfin database has been backed up as {BackupPath}", _backupKey.JellyfinDb);
|
|
}
|
|
|
|
if (_backupService is not null && (backupInstruction.Metadata || backupInstruction.Subtitles || backupInstruction.Trickplay))
|
|
{
|
|
logger.LogInformation("A migration will attempt to modify system resources. Will attempt to create backup now.");
|
|
_backupKey = (_backupKey.LibraryDb, _backupKey.JellyfinDb, await _backupService.CreateBackupAsync(new BackupOptionsDto()
|
|
{
|
|
Metadata = backupInstruction.Metadata,
|
|
Subtitles = backupInstruction.Subtitles,
|
|
Trickplay = backupInstruction.Trickplay,
|
|
Database = false // database backups are explicitly handled by the provider itself as the backup service requires parity with the current model
|
|
}).ConfigureAwait(false));
|
|
logger.LogInformation("Pre-Migration backup successfully created as {BackupKey}", _backupKey.FullBackup.Path);
|
|
}
|
|
}
|
|
|
|
private static JellyfinMigrationBackupAttribute MergeBackupAttributes(JellyfinMigrationBackupAttribute left, JellyfinMigrationBackupAttribute right)
|
|
{
|
|
return new JellyfinMigrationBackupAttribute()
|
|
{
|
|
JellyfinDb = left!.JellyfinDb || right!.JellyfinDb,
|
|
LegacyLibraryDb = left.LegacyLibraryDb || right!.LegacyLibraryDb,
|
|
Metadata = left.Metadata || right!.Metadata,
|
|
Subtitles = left.Subtitles || right!.Subtitles,
|
|
Trickplay = left.Trickplay || right!.Trickplay
|
|
};
|
|
}
|
|
|
|
private class InternalCodeMigration : IInternalMigration
|
|
{
|
|
private readonly CodeMigration _codeMigration;
|
|
private readonly IServiceProvider? _serviceProvider;
|
|
private JellyfinDbContext _dbContext;
|
|
|
|
public InternalCodeMigration(CodeMigration codeMigration, IServiceProvider? serviceProvider, JellyfinDbContext dbContext)
|
|
{
|
|
_codeMigration = codeMigration;
|
|
_serviceProvider = serviceProvider;
|
|
_dbContext = dbContext;
|
|
}
|
|
|
|
public async Task PerformAsync(IStartupLogger logger)
|
|
{
|
|
await _codeMigration.Perform(_serviceProvider, logger, CancellationToken.None).ConfigureAwait(false);
|
|
|
|
var historyRepository = _dbContext.GetService<IHistoryRepository>();
|
|
var createScript = historyRepository.GetInsertScript(new HistoryRow(_codeMigration.BuildCodeMigrationId(), GetJellyfinVersion()));
|
|
await _dbContext.Database.ExecuteSqlRawAsync(createScript).ConfigureAwait(false);
|
|
}
|
|
}
|
|
|
|
private class InternalDatabaseMigration : IInternalMigration
|
|
{
|
|
private readonly JellyfinDbContext _jellyfinDbContext;
|
|
private KeyValuePair<string, TypeInfo> _databaseMigrationInfo;
|
|
|
|
public InternalDatabaseMigration(KeyValuePair<string, TypeInfo> databaseMigrationInfo, JellyfinDbContext jellyfinDbContext)
|
|
{
|
|
_databaseMigrationInfo = databaseMigrationInfo;
|
|
_jellyfinDbContext = jellyfinDbContext;
|
|
}
|
|
|
|
public async Task PerformAsync(IStartupLogger logger)
|
|
{
|
|
var migrator = _jellyfinDbContext.GetService<IMigrator>();
|
|
await migrator.MigrateAsync(_databaseMigrationInfo.Key).ConfigureAwait(false);
|
|
}
|
|
}
|
|
}
|