/// <summary>
/// Given a root user data directory, this migrates user preferences,
/// packages and custom node definition files from one installed version
/// into another
/// </summary>
/// <param name="fromVersion"> source Dynamo version from which to migrate </param>
/// <param name="toVersion"> target Dynamo version into which to migrate </param>
/// <returns> new migrator instance after migration, null if there's no migration </returns>
internal static DynamoMigratorBase Migrate(FileVersion fromVersion, FileVersion toVersion)
{
// Create concrete DynamoMigratorBase object using previousVersion and reflection
var sourceMigrator = CreateMigrator(fromVersion);
Debug.Assert(sourceMigrator != null);
// get migrator object for current version
var targetMigrator = CreateMigrator(toVersion);
Debug.Assert(targetMigrator != null);
bool isPackagesDirectoryEmpty = !Directory.EnumerateFileSystemEntries(targetMigrator.PackagesDirectory).Any();
bool isDefinitionsDirectoryEmpty = !Directory.EnumerateFileSystemEntries(targetMigrator.DefinitionsDirectory).Any();
// Migrate only if both packages and definitions directories are empty
if (isPackagesDirectoryEmpty && isDefinitionsDirectoryEmpty)
{
DynamoModel.OnRequestMigrationStatusDialog(new SettingsMigrationEventArgs(
SettingsMigrationEventArgs.EventStatusType.Begin));
return(targetMigrator.MigrateFrom(sourceMigrator));
}
return(null);
}
/// <summary>
/// Migrates preference settings and copies packages and custom node
/// definitions from the last but one version to the currently installed Dynamo version
/// </summary>
/// <param name="pathManager"></param>
/// <param name="pathResolver"></param>
/// <returns>new migrator instance after migration</returns>
public static DynamoMigratorBase MigrateBetweenDynamoVersions(IPathManager pathManager, IPathResolver pathResolver)
{
// No migration required if the current version is <= version 0.7
if (pathManager.MajorFileVersion == 0 &&
pathManager.MinorFileVersion <= 7)
{
return(null);
}
var userDataDir = Path.GetDirectoryName(pathManager.UserDataDirectory);
var versions = GetInstalledVersions(userDataDir).ToList();
if (versions.Count() < 2)
{
return(null); // No need for migration
}
DynamoModel.OnRequestMigrationStatusDialog(new SettingsMigrationEventArgs(
SettingsMigrationEventArgs.EventStatusType.Begin));
var previousVersion = versions[1];
var currentVersion = versions[0];
Debug.Assert(currentVersion.MajorPart == pathManager.MajorFileVersion &&
currentVersion.MinorPart == pathManager.MinorFileVersion);
return(Migrate(pathResolver, previousVersion, currentVersion));
}
void UsageReportingPromptLoaded(object sender, RoutedEventArgs e)
{
DynamoModel.OnRequestMigrationStatusDialog(new SettingsMigrationEventArgs(
SettingsMigrationEventArgs.EventStatusType.End));
}