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Monorepo for Tangled tangled.org
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import ( "encoding/json" "time"
"tangled.org/core/api/tangled" "tangled.org/core/eventstream" "tangled.org/core/notifier" "tangled.org/core/spindle/models" "tangled.org/core/tid")
func (d *DB) insertEvent(event eventstream.Event, n *notifier.Notifier) error { return eventstream.Insert(d, event, n)}
func (d *DB) GetEvents(cursor int64, limit int) ([]eventstream.Event, error) { return eventstream.List(d, cursor, limit)}
func (d *DB) EventHighWater() (int64, error) { return eventstream.HighWater(d)}
func (d *DB) CreatePipelineEvent(rkey string, pipeline tangled.Pipeline, n *notifier.Notifier) error { eventJson, err := json.Marshal(pipeline) if err != nil { return err } event := eventstream.Event{ Rkey: rkey, Nsid: tangled.PipelineNSID, EventJson: eventJson, } return d.insertEvent(event, n)}
// the envelope Created stays zero so insertEvent stamps the local clock, the record's CreatedAt is separatefunc statusEvent(pipelineAtUri, workflow, status string, workflowError *string, exitCode *int64) (eventstream.Event, error) { s := tangled.PipelineStatus{ CreatedAt: time.Now().Format(time.RFC3339), Error: workflowError, ExitCode: exitCode, Pipeline: pipelineAtUri, Workflow: workflow, Status: status, }
eventJson, err := json.Marshal(s) if err != nil { return eventstream.Event{}, err }
return eventstream.Event{ Rkey: tid.TID(), Nsid: tangled.PipelineStatusNSID, EventJson: eventJson, }, nil}
func (d *DB) createStatusEvent( workflowId models.WorkflowId, statusKind models.StatusKind, workflowError *string, exitCode *int64, n *notifier.Notifier,) error { event, err := statusEvent(string(workflowId.PipelineId.AtUri()), workflowId.Name, string(statusKind), workflowError, exitCode) if err != nil { return err } return d.insertEvent(event, n)}
// stamps the mill's own clock so it orders against the cursor like a local writefunc (d *DB) InsertEventStatus( pipelineAtUri string, workflow string, status string, workflowError *string, exitCode *int64, n *notifier.Notifier,) error { event, err := statusEvent(pipelineAtUri, workflow, status, workflowError, exitCode) if err != nil { return err } return d.insertEvent(event, n)}
// deleting the lease in the same transaction prevents the terminal event// from replayingfunc (d *DB) CompleteMillLease( leaseID string, pipelineAtUri string, workflow string, status string, workflowError *string, exitCode *int64, n *notifier.Notifier,) error { return d.ApplyEventBatch(n, func(tx *EventBatchTx) error { if err := tx.InsertStatusEvent(pipelineAtUri, workflow, status, workflowError, exitCode); err != nil { return err } return tx.DeleteLease(leaseID) })}
func (d *DB) GetStatus(workflowId models.WorkflowId) (*tangled.PipelineStatus, error) { pipelineAtUri := workflowId.PipelineId.AtUri()
var eventJson string err := d.QueryRow( ` select event from events where nsid = ? and json_extract(event, '$.pipeline') = ? and json_extract(event, '$.workflow') = ? order by created desc limit 1 `, tangled.PipelineStatusNSID, string(pipelineAtUri), workflowId.Name, ).Scan(&eventJson)
if err != nil { return nil, err }
var status tangled.PipelineStatus if err := json.Unmarshal([]byte(eventJson), &status); err != nil { return nil, err }
return &status, nil}
func (d *DB) StatusPending(workflowId models.WorkflowId, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindPending, nil, nil, n)}
func (d *DB) StatusRunning(workflowId models.WorkflowId, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindRunning, nil, nil, n)}
func (d *DB) StatusFailed(workflowId models.WorkflowId, workflowError string, exitCode int64, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindFailed, &workflowError, &exitCode, n)}
func (d *DB) StatusCancelled(workflowId models.WorkflowId, workflowError string, exitCode int64, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindCancelled, &workflowError, &exitCode, n)}
func (d *DB) StatusSuccess(workflowId models.WorkflowId, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindSuccess, nil, nil, n)}
func (d *DB) StatusTimeout(workflowId models.WorkflowId, n *notifier.Notifier) error { return d.createStatusEvent(workflowId, models.StatusKindTimeout, nil, nil, n)}