jellyfin-server/Jellyfin.Server/Migrations/MigrationRunner.cs

74 lines
3.2 KiB
C#

using System;
using System.Linq;
using MediaBrowser.Common.Configuration;
using Microsoft.Extensions.Logging;
namespace Jellyfin.Server.Migrations
{
/// <summary>
/// The class that knows which migrations to apply and how to apply them.
/// </summary>
public sealed class MigrationRunner
{
/// <summary>
/// The list of known migrations, in order of applicability.
/// </summary>
internal static readonly IMigrationRoutine[] Migrations =
{
new Routines.DisableTranscodingThrottling(),
new Routines.CreateUserLoggingConfigFile()
};
/// <summary>
/// Run all needed migrations.
/// </summary>
/// <param name="host">CoreAppHost that hosts current version.</param>
/// <param name="loggerFactory">Factory for making the logger.</param>
public static void Run(CoreAppHost host, ILoggerFactory loggerFactory)
{
var logger = loggerFactory.CreateLogger<MigrationRunner>();
var migrationOptions = ((IConfigurationManager)host.ServerConfigurationManager).GetConfiguration<MigrationOptions>(MigrationsListStore.StoreKey);
if (!host.ServerConfigurationManager.Configuration.IsStartupWizardCompleted && migrationOptions.Applied.Count == 0)
{
// If startup wizard is not finished, this is a fresh install.
// Don't run any migrations, just mark all of them as applied.
logger.LogInformation("Marking all known migrations as applied because this is a fresh install");
migrationOptions.Applied.AddRange(Migrations.Select(m => (m.Id, m.Name)));
host.ServerConfigurationManager.SaveConfiguration(MigrationsListStore.StoreKey, migrationOptions);
return;
}
var appliedMigrationIds = migrationOptions.Applied.Select(m => m.Id).ToHashSet();
for (var i = 0; i < Migrations.Length; i++)
{
var migrationRoutine = Migrations[i];
if (appliedMigrationIds.Contains(migrationRoutine.Id))
{
logger.LogDebug("Skipping migration '{Name}' since it is already applied", migrationRoutine.Name);
continue;
}
logger.LogInformation("Applying migration '{Name}'", migrationRoutine.Name);
try
{
migrationRoutine.Perform(host, logger);
}
catch (Exception ex)
{
logger.LogError(ex, "Could not apply migration '{Name}'", migrationRoutine.Name);
throw;
}
// Mark the migration as completed
logger.LogInformation("Migration '{Name}' applied successfully", migrationRoutine.Name);
migrationOptions.Applied.Add((migrationRoutine.Id, migrationRoutine.Name));
host.ServerConfigurationManager.SaveConfiguration(MigrationsListStore.StoreKey, migrationOptions);
logger.LogDebug("Migration '{Name}' marked as applied in configuration.", migrationRoutine.Name);
}
}
}
}