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bitwarden-server/util/Migrator/DbMigrator.cs
2019-03-25 15:59:12 -04:00

102 lines
3.6 KiB
C#

using System;
using System.Data.SqlClient;
using System.Reflection;
using System.Threading;
using Bit.Core;
using DbUp;
using Microsoft.Extensions.Logging;
namespace Bit.Migrator
{
public class DbMigrator
{
private readonly string _connectionString;
private readonly ILogger<DbMigrator> _logger;
private readonly string _masterConnectionString;
public DbMigrator(string connectionString, ILogger<DbMigrator> logger)
{
_connectionString = connectionString;
_logger = logger;
_masterConnectionString = new SqlConnectionStringBuilder(connectionString)
{
InitialCatalog = "master"
}.ConnectionString;
}
public bool MigrateMsSqlDatabase(bool enableLogging = true,
CancellationToken cancellationToken = default(CancellationToken))
{
if(enableLogging && _logger != null)
{
_logger.LogInformation(Constants.BypassFiltersEventId, "Migrating database.");
}
using(var connection = new SqlConnection(_masterConnectionString))
{
var command = new SqlCommand(
"IF ((SELECT COUNT(1) FROM sys.databases WHERE [name] = 'vault') = 0) " +
"CREATE DATABASE [vault];", connection);
command.Connection.Open();
command.ExecuteNonQuery();
command.CommandText = "IF ((SELECT DATABASEPROPERTYEX([name], 'IsAutoClose') " +
"FROM sys.databases WHERE [name] = 'vault') = 1) " +
"ALTER DATABASE [vault] SET AUTO_CLOSE OFF;";
command.ExecuteNonQuery();
}
cancellationToken.ThrowIfCancellationRequested();
using(var connection = new SqlConnection(_connectionString))
{
// Rename old migration scripts to new namespace.
var command = new SqlCommand(
"IF OBJECT_ID('Migration','U') IS NOT NULL " +
"UPDATE [dbo].[Migration] SET " +
"[ScriptName] = REPLACE([ScriptName], 'Bit.Setup.', 'Bit.Migrator.');", connection);
command.Connection.Open();
command.ExecuteNonQuery();
}
cancellationToken.ThrowIfCancellationRequested();
var builder = DeployChanges.To
.SqlDatabase(_connectionString)
.JournalToSqlTable("dbo", "Migration")
.WithScriptsAndCodeEmbeddedInAssembly(Assembly.GetExecutingAssembly(),
s => s.Contains($".DbScripts.") && !s.Contains(".Archive."))
.WithTransaction()
.WithExecutionTimeout(new TimeSpan(0, 5, 0));
if(enableLogging)
{
if(_logger != null)
{
builder.LogTo(new DbUpLogger(_logger));
}
else
{
builder.LogToConsole();
}
}
var upgrader = builder.Build();
var result = upgrader.PerformUpgrade();
if(enableLogging && _logger != null)
{
if(result.Successful)
{
_logger.LogInformation(Constants.BypassFiltersEventId, "Migration successful.");
}
else
{
_logger.LogError(Constants.BypassFiltersEventId, result.Error, "Migration failed.");
}
}
cancellationToken.ThrowIfCancellationRequested();
return result.Successful;
}
}
}