public static async Task MigrateAsync(this MigrationConfiguration migrationConfiguration)
{
var loggerFactory = new LoggerFactory();
var journalRepository = new Journal.JournalRepository(loggerFactory.CreateLogger <Journal.JournalRepository>(), migrationConfiguration.Driver);
var migrate = new Migrate(loggerFactory.CreateLogger <Migrate>(), journalRepository);
await migrate.ExecuteAsync(migrationConfiguration);
}
public async Task ExecuteAsync(MigrationConfiguration configuration)
{
_logger.LogInformation("Started appling migrations");
int lastVersion = 0;
var lastJournalRecord = await _journalRepository.GetLastScriptAsync();
if (lastJournalRecord is not null)
{
lastVersion = lastJournalRecord.Version;
}
_logger.LogInformation($"Resolved the last version: '{lastVersion}'");
var scripts = new List <Script>();
await foreach (var scriptLoaderResult in GetScriptsAsync(configuration.ScriptLoaders, lastVersion))
{
scripts.AddRange(scriptLoaderResult);
}
_logger.LogInformation($"Found {scripts.Count} scripts");
_logger.LogInformation("Executing sequentially. . .");
await ExecuteSequentialyAsync(configuration, scripts);
_logger.LogInformation("Executed successfully!");
}
internal async Task ExecuteSequentialyAsync(MigrationConfiguration configuration, ICollection <Script> scripts)
{
var orderedScripts = scripts.OrderBy(x => x.Version).ToList();
foreach (var script in orderedScripts)
{
_logger.LogInformation($"Script info - Name'{script.Name}' Version '{script.Version}'");
var session = configuration.Driver.AsyncSession();
try
{
await session.WriteTransactionAsync(async tx =>
{
foreach (var statement in script.Statements)
{
if (string.IsNullOrEmpty(statement))
{
continue;
}
_logger.LogDebug($"Executing statement: \n{statement}\n");
await tx.RunAsync(statement);
}
});
await _journalRepository.AddAsync(new JournalRecord
{
Version = script.Version,
ScriptName = script.Name,
AppliedAt = DateTime.Now
});
}
catch (Exception ex)
{
_logger.LogError(ex, ex.Message);
break;
}
finally
{
await session.CloseAsync();
}
}
}
private MigrationConfigurationBuilder()
{
_configuration = new MigrationConfiguration();
}
