migration

func CHASMToLegacyStartScheduleArgs ¶

func CHASMToLegacyStartScheduleArgs(
	scheduler *schedulerpb.SchedulerState,
	generator *schedulerpb.GeneratorState,
	invoker *schedulerpb.InvokerState,
	backfillers map[string]*schedulerpb.BackfillerState,
	lastCompletionResult *schedulerpb.LastCompletionResult,
	searchAttributes map[string]*commonpb.Payload,
	memo map[string]*commonpb.Payload,
	migrationTime time.Time,
) *schedulespb.StartScheduleArgs

CHASMToLegacyStartScheduleArgs converts CHASM scheduler state to V1 StartScheduleArgs. This is the primary V2-to-V1 migration function. The migrationTime parameter is used to initialize missing timestamps.

func LegacyToCreateFromMigrationStateRequest ¶

func LegacyToCreateFromMigrationStateRequest(
	schedule *schedulepb.Schedule,
	info *schedulepb.ScheduleInfo,
	state *schedulespb.InternalState,
	searchAttributes *commonpb.SearchAttributes,
	memo *commonpb.Memo,
	migrationTime time.Time,
) *schedulerpb.CreateFromMigrationStateRequest

LegacyToCreateFromMigrationStateRequest converts legacy (workflow-backed) scheduler state to a CreateFromMigrationStateRequest proto. This is the primary V1-to-V2 migration function.

The migrationTime parameter is used for initializing timestamps that don't have a direct mapping from V1 state (e.g., StartTime for running workflows).

State preserved during migration:

• Schedule spec, action, policies, and state
• ScheduleInfo metadata (action counts, create/update times)
• ConflictToken (for optimistic concurrency control)
• Buffered starts (with V2-specific fields like RequestId, WorkflowId populated)
• Running workflows (converted to BufferedStarts with RunId/StartTime set)
• Recent actions (converted to BufferedStarts with Completed field set)
• Ongoing backfills (converted to Backfiller components)
• Last completion result and continued failure
• High water mark (becomes Generator.LastProcessedTime)
• Search attributes and memo

Note: In V2, RunningWorkflows and RecentActions are computed on-demand from BufferedStarts by the Invoker, rather than being stored separately in ScheduleInfo.