buildbucket/appengine/tasks/tasks.go - infra/luci/luci-go - Git at Google

 // Copyright 2020 The LUCI Authors.
 //
 // Licensed under the Apache License, Version 2.0 (the "License");
 // you may not use this file except in compliance with the License.
 // You may obtain a copy of the License at
 //
 //      http://www.apache.org/licenses/LICENSE-2.0
 //
 // Unless required by applicable law or agreed to in writing, software
 // distributed under the License is distributed on an "AS IS" BASIS,
 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 // See the License for the specific language governing permissions and
 // limitations under the License.

 // Package tasks contains task queue implementations.
 package tasks

 import (
 	"context"
 	"encoding/json"
 	"fmt"
 	"time"

 	"google.golang.org/protobuf/encoding/protojson"
 	"google.golang.org/protobuf/proto"

 	"go.chromium.org/luci/common/errors"
 	"go.chromium.org/luci/common/logging"
 	"go.chromium.org/luci/server/tq"

 	"go.chromium.org/luci/buildbucket/appengine/internal/resultdb"
 	taskdefs "go.chromium.org/luci/buildbucket/appengine/tasks/defs"
 	pb "go.chromium.org/luci/buildbucket/proto"

 	// Enable datastore transactional tasks support.
 	_ "go.chromium.org/luci/server/tq/txn/datastore"
 )

 // rejectionHandler returns a tq.Handler which rejects the given task.
 // Used by tasks which are handled in Python.
 // TODO(crbug/1042991): Remove once all handlers are implemented in Go.
 func rejectionHandler(tq string) tq.Handler {
 	return func(ctx context.Context, payload proto.Message) error {
 		logging.Errorf(ctx, "tried to handle %s: %q", tq, payload)
 		return errors.Reason("handler called").Err()
 	}
 }

 func init() {
 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "cancel-backend-task",
 		Kind:      tq.FollowsContext,
 		Prototype: (*taskdefs.CancelBackendTask)(nil),
 		Queue:     "cancel-backend-task",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CancelBackendTask)
 			return HandleCancelBackendTask(ctx, t.Project, t.Target, t.TaskId)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID: "cancel-swarming-task",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			task := m.(*taskdefs.CancelSwarmingTask)
 			body, err := json.Marshal(map[string]any{
 				"hostname": task.Hostname,
 				"task_id":  task.TaskId,
 				"realm":    task.Realm,
 			})
 			if err != nil {
 				return nil, errors.Annotate(err, "error marshaling payload").Err()
 			}
 			return &tq.CustomPayload{
 				Body:        body,
 				Method:      "POST",
 				RelativeURI: fmt.Sprintf("/internal/task/buildbucket/cancel_swarming_task/%s/%s", task.Hostname, task.TaskId),
 			}, nil
 		},
 		Handler:   rejectionHandler("cancel-swarming-task"),
 		Kind:      tq.FollowsContext,
 		Prototype: (*taskdefs.CancelSwarmingTask)(nil),
 		Queue:     "backend-default",
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "cancel-swarming-task-go",
 		Kind:      tq.FollowsContext,
 		Prototype: (*taskdefs.CancelSwarmingTaskGo)(nil),
 		Queue:     "backend-go-default",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CancelSwarmingTaskGo)
 			return HandleCancelSwarmingTask(ctx, t.Hostname, t.TaskId, t.Realm)
 		},
 	})

 	// TODO(crbug.com/1328646): Delete it after swarming-build-create migration is done.
 	tq.RegisterTaskClass(tq.TaskClass{
 		ID: "create-swarming-task",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			task := m.(*taskdefs.CreateSwarmingTask)
 			body, err := json.Marshal(map[string]any{
 				"generation": 0,
 				"id":         task.BuildId,
 			})
 			if err != nil {
 				return nil, errors.Annotate(err, "error marshaling payload").Err()
 			}
 			return &tq.CustomPayload{
 				Body:        body,
 				Method:      "POST",
 				RelativeURI: fmt.Sprintf("/internal/task/swarming/sync-build/%d", task.BuildId),
 			}, nil
 		},
 		Handler:   rejectionHandler("create-swarming-task"),
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.CreateSwarmingTask)(nil),
 		Queue:     "swarming-build-create",
 	})

 	// TODO(crbug.com/1356766): remove it after bq-exporter runs in Go.
 	tq.RegisterTaskClass(tq.TaskClass{
 		ID: "export-bigquery",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			task := m.(*taskdefs.ExportBigQuery)
 			body, err := json.Marshal(map[string]any{
 				"id": task.BuildId,
 			})
 			if err != nil {
 				return nil, errors.Annotate(err, "error marshaling payload").Err()
 			}
 			return &tq.CustomPayload{
 				Body:        body,
 				Method:      "POST",
 				RelativeURI: fmt.Sprintf("/internal/task/bq/export/%d", task.BuildId),
 			}, nil
 		},
 		Handler:   rejectionHandler("export-bigquery"),
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.ExportBigQuery)(nil),
 		Queue:     "backend-default",
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID: "finalize-resultdb",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			task := m.(*taskdefs.FinalizeResultDB)
 			body, err := json.Marshal(map[string]any{
 				"id": task.BuildId,
 			})
 			if err != nil {
 				return nil, errors.Annotate(err, "error marshaling payload").Err()
 			}
 			return &tq.CustomPayload{
 				Body:        body,
 				Method:      "POST",
 				RelativeURI: fmt.Sprintf("/internal/task/resultdb/finalize/%d", task.BuildId),
 			}, nil
 		},
 		Handler:   rejectionHandler("finalize-resultdb"),
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.FinalizeResultDB)(nil),
 		Queue:     "backend-default",
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "finalize-resultdb-go",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.FinalizeResultDBGo)(nil),
 		Queue:     "finalize-resultdb-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.FinalizeResultDBGo)
 			return resultdb.FinalizeInvocation(ctx, t.BuildId)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID: "notify-pubsub",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			task := m.(*taskdefs.NotifyPubSub)
 			mode := "global"
 			if task.Callback {
 				mode = "callback"
 			}
 			body, err := json.Marshal(map[string]any{
 				"id":   task.BuildId,
 				"mode": mode,
 			})
 			if err != nil {
 				return nil, errors.Annotate(err, "error marshaling payload").Err()
 			}
 			return &tq.CustomPayload{
 				Body:        body,
 				Method:      "POST",
 				RelativeURI: fmt.Sprintf("/internal/task/buildbucket/notify/%d", task.BuildId),
 			}, nil
 		},
 		Handler:   rejectionHandler("notify-pubsub"),
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.NotifyPubSub)(nil),
 		Queue:     "backend-default",
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "notify-pubsub-go",
 		Kind:      tq.FollowsContext,
 		Prototype: (*taskdefs.NotifyPubSubGo)(nil),
 		Queue:     "notify-pubsub-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.NotifyPubSubGo)
 			return PublishBuildsV2Notification(ctx, t.BuildId, t.Topic, t.Callback)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "notify-pubsub-go-proxy",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.NotifyPubSubGoProxy)(nil),
 		Queue:     "notify-pubsub-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.NotifyPubSubGoProxy)
 			return EnqueueNotifyPubSubGo(ctx, t.BuildId, t.Project)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "builds_v2",
 		Kind:      tq.NonTransactional,
 		Prototype: (*pb.BuildsV2PubSub)(nil),
 		Topic:     "builds_v2",
 		Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
 			t := m.(*pb.BuildsV2PubSub)
 			blob, err := (protojson.MarshalOptions{Indent: "\t"}).Marshal(m)
 			if err != nil {
 				logging.Errorf(ctx, "failed to marshal builds_v2 pubsub message body - %s", err)
 				return nil, err
 			}
 			return &tq.CustomPayload{
 				Body: blob,
 				Meta: generateBuildsV2Attributes(t.Build),
 			}, nil
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "cancel-build",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.CancelBuildTask)(nil),
 		Queue:     "cancel-build",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CancelBuildTask)
 			_, err := Cancel(ctx, t.BuildId)
 			return err
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "create-swarming-task-go",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.CreateSwarmingBuildTask)(nil),
 		Queue:     "swarming-build-create-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CreateSwarmingBuildTask)
 			return SyncBuild(ctx, t.GetBuildId(), 0)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "create-backend-task-go",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.CreateBackendBuildTask)(nil),
 		Queue:     "create-backend-task-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CreateBackendBuildTask)
 			return CreateBackendTask(ctx, t.GetBuildId(), t.GetRequestId())
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "sync-swarming-task-go",
 		Kind:      tq.NonTransactional,
 		Prototype: (*taskdefs.SyncSwarmingBuildTask)(nil),
 		Queue:     "swarming-build-sync-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.SyncSwarmingBuildTask)
 			return SyncBuild(ctx, t.GetBuildId(), t.GetGeneration())
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "export-bigquery-go",
 		Kind:      tq.Transactional,
 		Prototype: (*taskdefs.ExportBigQueryGo)(nil),
 		Queue:     "export-bigquery-go",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.ExportBigQueryGo)
 			return ExportBuild(ctx, t.BuildId)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "sync-builds-with-backend-tasks",
 		Kind:      tq.NonTransactional,
 		Prototype: (*taskdefs.SyncBuildsWithBackendTasks)(nil),
 		Queue:     "sync-builds-with-backend-tasks",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.SyncBuildsWithBackendTasks)
 			return SyncBuildsWithBackendTasks(ctx, t.Backend, t.Project)
 		},
 	})

 	tq.RegisterTaskClass(tq.TaskClass{
 		ID:        "check-build-liveness",
 		Kind:      tq.FollowsContext,
 		Prototype: (*taskdefs.CheckBuildLiveness)(nil),
 		Queue:     "check-build-liveness",
 		Handler: func(ctx context.Context, payload proto.Message) error {
 			t := payload.(*taskdefs.CheckBuildLiveness)
 			return CheckLiveness(ctx, t.BuildId, t.HeartbeatTimeout)
 		},
 	})
 }

 // CancelBackendTask enqueues a task queue task to cancel the given Backend
 // task.
 func CancelBackendTask(ctx context.Context, task *taskdefs.CancelBackendTask) error {
 	switch {
 	case task.Project == "":
 		return errors.Reason("project is required").Err()
 	case task.TaskId == "":
 		return errors.Reason("task_id is required").Err()
 	case task.Target == "":
 		return errors.Reason("task target is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: task,
 	})
 }

 // CancelSwarmingTask enqueues a task queue task to cancel the given Swarming
 // task.
 func CancelSwarmingTask(ctx context.Context, task *taskdefs.CancelSwarmingTaskGo) error {
 	switch {
 	case task.GetHostname() == "":
 		return errors.Reason("hostname is required").Err()
 	case task.TaskId == "":
 		return errors.Reason("task_id is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: task,
 	})
 }

 // CreateSwarmingTask enqueues a task queue task to create a Swarming task from
 // the given build.
 func CreateSwarmingTask(ctx context.Context, task *taskdefs.CreateSwarmingTask) error {
 	if task.GetBuildId() == 0 {
 		return errors.Reason("build_id is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: task,
 	})
 }

 // CreateSwarmingBuildTask enqueues a Cloud Tasks task to create a Swarming task
 // from the given build.
 func CreateSwarmingBuildTask(ctx context.Context, task *taskdefs.CreateSwarmingBuildTask) error {
 	if task.GetBuildId() == 0 {
 		return errors.Reason("build_id is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Title:   fmt.Sprintf("create-swarming-task-%d", task.BuildId),
 		Payload: task,
 	})
 }

 // CreateBackendBuildTask enqueues a Cloud Tasks task to create a backend task
 // from the given build.
 func CreateBackendBuildTask(ctx context.Context, task *taskdefs.CreateBackendBuildTask) error {
 	if task.GetBuildId() == 0 {
 		return errors.Reason("build_id is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Title:   fmt.Sprintf("create-backend-task-%d", task.BuildId),
 		Payload: task,
 	})
 }

 // SyncSwarmingBuildTask enqueues a Cloud Tasks task to sync the Swarming task
 // with the given build.
 func SyncSwarmingBuildTask(ctx context.Context, task *taskdefs.SyncSwarmingBuildTask, delay time.Duration) error {
 	switch {
 	case task.GetBuildId() == 0:
 		return errors.Reason("build_id is required").Err()
 	case task.GetGeneration() == 0:
 		return errors.Reason("generation should be larger than 0").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Title:            fmt.Sprintf("sync-swarming-task-%d", task.BuildId),
 		Payload:          task,
 		Delay:            delay,
 		DeduplicationKey: fmt.Sprintf("%d-%d", task.BuildId, task.Generation),
 	})
 }

 // ExportBigQuery enqueues a task queue task to export the given build to Bq.
 // TODO(crbug.com/1356766): routeToGo will be removed once migration is done.
 func ExportBigQuery(ctx context.Context, buildID int64, routeToGo bool) error {
 	if buildID <= 0 {
 		return errors.Reason("build_id is invalid").Err()
 	}
 	if routeToGo {
 		return tq.AddTask(ctx, &tq.Task{
 			Payload: &taskdefs.ExportBigQueryGo{BuildId: buildID},
 		})
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: &taskdefs.ExportBigQuery{BuildId: buildID},
 	})
 }

 // FinalizeResultDB enqueues a task queue task to finalize the invocation for
 // the given build in ResultDB.
 func FinalizeResultDB(ctx context.Context, task *taskdefs.FinalizeResultDBGo) error {
 	if task.GetBuildId() == 0 {
 		return errors.Reason("build_id is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: task,
 	})
 }

 // SyncWithBackend enqueues a task queue task to sync builds in one project
 // running on a backend.
 func SyncWithBackend(ctx context.Context, backend, project string) error {
 	switch {
 	case backend == "":
 		return errors.Reason("backend is required").Err()
 	case project == "":
 		return errors.Reason("project is required").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: &taskdefs.SyncBuildsWithBackendTasks{
 			Backend: backend,
 			Project: project,
 		},
 	})
 }

 // CheckBuildLiveness enqueues a task queue task to check a build's liveness.
 func CheckBuildLiveness(ctx context.Context, buildID int64, heartbeatTimeout uint32, delay time.Duration) error {
 	if buildID <= 0 {
 		return errors.Reason("build_id is invalid").Err()
 	}
 	return tq.AddTask(ctx, &tq.Task{
 		Payload: &taskdefs.CheckBuildLiveness{
 			BuildId:          buildID,
 			HeartbeatTimeout: heartbeatTimeout,
 		},
 		Delay: delay,
 	})
 }
	// Copyright 2020 The LUCI Authors.
	//
	// Licensed under the Apache License, Version 2.0 (the "License");
	// you may not use this file except in compliance with the License.
	// You may obtain a copy of the License at
	//
	// http://www.apache.org/licenses/LICENSE-2.0
	//
	// Unless required by applicable law or agreed to in writing, software
	// distributed under the License is distributed on an "AS IS" BASIS,
	// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
	// See the License for the specific language governing permissions and
	// limitations under the License.

	// Package tasks contains task queue implementations.
	package tasks

	import (
	"context"
	"encoding/json"
	"fmt"
	"time"

	"google.golang.org/protobuf/encoding/protojson"
	"google.golang.org/protobuf/proto"

	"go.chromium.org/luci/common/errors"
	"go.chromium.org/luci/common/logging"
	"go.chromium.org/luci/server/tq"

	"go.chromium.org/luci/buildbucket/appengine/internal/resultdb"
	taskdefs "go.chromium.org/luci/buildbucket/appengine/tasks/defs"
	pb "go.chromium.org/luci/buildbucket/proto"

	// Enable datastore transactional tasks support.
	_ "go.chromium.org/luci/server/tq/txn/datastore"
	)

	// rejectionHandler returns a tq.Handler which rejects the given task.
	// Used by tasks which are handled in Python.
	// TODO(crbug/1042991): Remove once all handlers are implemented in Go.
	func rejectionHandler(tq string) tq.Handler {
	return func(ctx context.Context, payload proto.Message) error {
	logging.Errorf(ctx, "tried to handle %s: %q", tq, payload)
	return errors.Reason("handler called").Err()
	}
	}

	func init() {
	tq.RegisterTaskClass(tq.TaskClass{
	ID: "cancel-backend-task",
	Kind: tq.FollowsContext,
	Prototype: (*taskdefs.CancelBackendTask)(nil),
	Queue: "cancel-backend-task",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CancelBackendTask)
	return HandleCancelBackendTask(ctx, t.Project, t.Target, t.TaskId)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "cancel-swarming-task",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	task := m.(*taskdefs.CancelSwarmingTask)
	body, err := json.Marshal(map[string]any{
	"hostname": task.Hostname,
	"task_id": task.TaskId,
	"realm": task.Realm,
	})
	if err != nil {
	return nil, errors.Annotate(err, "error marshaling payload").Err()
	}
	return &tq.CustomPayload{
	Body: body,
	Method: "POST",
	RelativeURI: fmt.Sprintf("/internal/task/buildbucket/cancel_swarming_task/%s/%s", task.Hostname, task.TaskId),
	}, nil
	},
	Handler: rejectionHandler("cancel-swarming-task"),
	Kind: tq.FollowsContext,
	Prototype: (*taskdefs.CancelSwarmingTask)(nil),
	Queue: "backend-default",
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "cancel-swarming-task-go",
	Kind: tq.FollowsContext,
	Prototype: (*taskdefs.CancelSwarmingTaskGo)(nil),
	Queue: "backend-go-default",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CancelSwarmingTaskGo)
	return HandleCancelSwarmingTask(ctx, t.Hostname, t.TaskId, t.Realm)
	},
	})

	// TODO(crbug.com/1328646): Delete it after swarming-build-create migration is done.
	tq.RegisterTaskClass(tq.TaskClass{
	ID: "create-swarming-task",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	task := m.(*taskdefs.CreateSwarmingTask)
	body, err := json.Marshal(map[string]any{
	"generation": 0,
	"id": task.BuildId,
	})
	if err != nil {
	return nil, errors.Annotate(err, "error marshaling payload").Err()
	}
	return &tq.CustomPayload{
	Body: body,
	Method: "POST",
	RelativeURI: fmt.Sprintf("/internal/task/swarming/sync-build/%d", task.BuildId),
	}, nil
	},
	Handler: rejectionHandler("create-swarming-task"),
	Kind: tq.Transactional,
	Prototype: (*taskdefs.CreateSwarmingTask)(nil),
	Queue: "swarming-build-create",
	})

	// TODO(crbug.com/1356766): remove it after bq-exporter runs in Go.
	tq.RegisterTaskClass(tq.TaskClass{
	ID: "export-bigquery",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	task := m.(*taskdefs.ExportBigQuery)
	body, err := json.Marshal(map[string]any{
	"id": task.BuildId,
	})
	if err != nil {
	return nil, errors.Annotate(err, "error marshaling payload").Err()
	}
	return &tq.CustomPayload{
	Body: body,
	Method: "POST",
	RelativeURI: fmt.Sprintf("/internal/task/bq/export/%d", task.BuildId),
	}, nil
	},
	Handler: rejectionHandler("export-bigquery"),
	Kind: tq.Transactional,
	Prototype: (*taskdefs.ExportBigQuery)(nil),
	Queue: "backend-default",
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "finalize-resultdb",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	task := m.(*taskdefs.FinalizeResultDB)
	body, err := json.Marshal(map[string]any{
	"id": task.BuildId,
	})
	if err != nil {
	return nil, errors.Annotate(err, "error marshaling payload").Err()
	}
	return &tq.CustomPayload{
	Body: body,
	Method: "POST",
	RelativeURI: fmt.Sprintf("/internal/task/resultdb/finalize/%d", task.BuildId),
	}, nil
	},
	Handler: rejectionHandler("finalize-resultdb"),
	Kind: tq.Transactional,
	Prototype: (*taskdefs.FinalizeResultDB)(nil),
	Queue: "backend-default",
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "finalize-resultdb-go",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.FinalizeResultDBGo)(nil),
	Queue: "finalize-resultdb-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.FinalizeResultDBGo)
	return resultdb.FinalizeInvocation(ctx, t.BuildId)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "notify-pubsub",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	task := m.(*taskdefs.NotifyPubSub)
	mode := "global"
	if task.Callback {
	mode = "callback"
	}
	body, err := json.Marshal(map[string]any{
	"id": task.BuildId,
	"mode": mode,
	})
	if err != nil {
	return nil, errors.Annotate(err, "error marshaling payload").Err()
	}
	return &tq.CustomPayload{
	Body: body,
	Method: "POST",
	RelativeURI: fmt.Sprintf("/internal/task/buildbucket/notify/%d", task.BuildId),
	}, nil
	},
	Handler: rejectionHandler("notify-pubsub"),
	Kind: tq.Transactional,
	Prototype: (*taskdefs.NotifyPubSub)(nil),
	Queue: "backend-default",
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "notify-pubsub-go",
	Kind: tq.FollowsContext,
	Prototype: (*taskdefs.NotifyPubSubGo)(nil),
	Queue: "notify-pubsub-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.NotifyPubSubGo)
	return PublishBuildsV2Notification(ctx, t.BuildId, t.Topic, t.Callback)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "notify-pubsub-go-proxy",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.NotifyPubSubGoProxy)(nil),
	Queue: "notify-pubsub-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.NotifyPubSubGoProxy)
	return EnqueueNotifyPubSubGo(ctx, t.BuildId, t.Project)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "builds_v2",
	Kind: tq.NonTransactional,
	Prototype: (*pb.BuildsV2PubSub)(nil),
	Topic: "builds_v2",
	Custom: func(ctx context.Context, m proto.Message) (*tq.CustomPayload, error) {
	t := m.(*pb.BuildsV2PubSub)
	blob, err := (protojson.MarshalOptions{Indent: "\t"}).Marshal(m)
	if err != nil {
	logging.Errorf(ctx, "failed to marshal builds_v2 pubsub message body - %s", err)
	return nil, err
	}
	return &tq.CustomPayload{
	Body: blob,
	Meta: generateBuildsV2Attributes(t.Build),
	}, nil
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "cancel-build",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.CancelBuildTask)(nil),
	Queue: "cancel-build",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CancelBuildTask)
	_, err := Cancel(ctx, t.BuildId)
	return err
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "create-swarming-task-go",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.CreateSwarmingBuildTask)(nil),
	Queue: "swarming-build-create-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CreateSwarmingBuildTask)
	return SyncBuild(ctx, t.GetBuildId(), 0)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "create-backend-task-go",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.CreateBackendBuildTask)(nil),
	Queue: "create-backend-task-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CreateBackendBuildTask)
	return CreateBackendTask(ctx, t.GetBuildId(), t.GetRequestId())
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "sync-swarming-task-go",
	Kind: tq.NonTransactional,
	Prototype: (*taskdefs.SyncSwarmingBuildTask)(nil),
	Queue: "swarming-build-sync-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.SyncSwarmingBuildTask)
	return SyncBuild(ctx, t.GetBuildId(), t.GetGeneration())
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "export-bigquery-go",
	Kind: tq.Transactional,
	Prototype: (*taskdefs.ExportBigQueryGo)(nil),
	Queue: "export-bigquery-go",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.ExportBigQueryGo)
	return ExportBuild(ctx, t.BuildId)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "sync-builds-with-backend-tasks",
	Kind: tq.NonTransactional,
	Prototype: (*taskdefs.SyncBuildsWithBackendTasks)(nil),
	Queue: "sync-builds-with-backend-tasks",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.SyncBuildsWithBackendTasks)
	return SyncBuildsWithBackendTasks(ctx, t.Backend, t.Project)
	},
	})

	tq.RegisterTaskClass(tq.TaskClass{
	ID: "check-build-liveness",
	Kind: tq.FollowsContext,
	Prototype: (*taskdefs.CheckBuildLiveness)(nil),
	Queue: "check-build-liveness",
	Handler: func(ctx context.Context, payload proto.Message) error {
	t := payload.(*taskdefs.CheckBuildLiveness)
	return CheckLiveness(ctx, t.BuildId, t.HeartbeatTimeout)
	},
	})
	}

	// CancelBackendTask enqueues a task queue task to cancel the given Backend
	// task.
	func CancelBackendTask(ctx context.Context, task *taskdefs.CancelBackendTask) error {
	switch {
	case task.Project == "":
	return errors.Reason("project is required").Err()
	case task.TaskId == "":
	return errors.Reason("task_id is required").Err()
	case task.Target == "":
	return errors.Reason("task target is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: task,
	})
	}

	// CancelSwarmingTask enqueues a task queue task to cancel the given Swarming
	// task.
	func CancelSwarmingTask(ctx context.Context, task *taskdefs.CancelSwarmingTaskGo) error {
	switch {
	case task.GetHostname() == "":
	return errors.Reason("hostname is required").Err()
	case task.TaskId == "":
	return errors.Reason("task_id is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: task,
	})
	}

	// CreateSwarmingTask enqueues a task queue task to create a Swarming task from
	// the given build.
	func CreateSwarmingTask(ctx context.Context, task *taskdefs.CreateSwarmingTask) error {
	if task.GetBuildId() == 0 {
	return errors.Reason("build_id is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: task,
	})
	}

	// CreateSwarmingBuildTask enqueues a Cloud Tasks task to create a Swarming task
	// from the given build.
	func CreateSwarmingBuildTask(ctx context.Context, task *taskdefs.CreateSwarmingBuildTask) error {
	if task.GetBuildId() == 0 {
	return errors.Reason("build_id is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Title: fmt.Sprintf("create-swarming-task-%d", task.BuildId),
	Payload: task,
	})
	}

	// CreateBackendBuildTask enqueues a Cloud Tasks task to create a backend task
	// from the given build.
	func CreateBackendBuildTask(ctx context.Context, task *taskdefs.CreateBackendBuildTask) error {
	if task.GetBuildId() == 0 {
	return errors.Reason("build_id is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Title: fmt.Sprintf("create-backend-task-%d", task.BuildId),
	Payload: task,
	})
	}

	// SyncSwarmingBuildTask enqueues a Cloud Tasks task to sync the Swarming task
	// with the given build.
	func SyncSwarmingBuildTask(ctx context.Context, task *taskdefs.SyncSwarmingBuildTask, delay time.Duration) error {
	switch {
	case task.GetBuildId() == 0:
	return errors.Reason("build_id is required").Err()
	case task.GetGeneration() == 0:
	return errors.Reason("generation should be larger than 0").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Title: fmt.Sprintf("sync-swarming-task-%d", task.BuildId),
	Payload: task,
	Delay: delay,
	DeduplicationKey: fmt.Sprintf("%d-%d", task.BuildId, task.Generation),
	})
	}

	// ExportBigQuery enqueues a task queue task to export the given build to Bq.
	// TODO(crbug.com/1356766): routeToGo will be removed once migration is done.
	func ExportBigQuery(ctx context.Context, buildID int64, routeToGo bool) error {
	if buildID <= 0 {
	return errors.Reason("build_id is invalid").Err()
	}
	if routeToGo {
	return tq.AddTask(ctx, &tq.Task{
	Payload: &taskdefs.ExportBigQueryGo{BuildId: buildID},
	})
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: &taskdefs.ExportBigQuery{BuildId: buildID},
	})
	}

	// FinalizeResultDB enqueues a task queue task to finalize the invocation for
	// the given build in ResultDB.
	func FinalizeResultDB(ctx context.Context, task *taskdefs.FinalizeResultDBGo) error {
	if task.GetBuildId() == 0 {
	return errors.Reason("build_id is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: task,
	})
	}

	// SyncWithBackend enqueues a task queue task to sync builds in one project
	// running on a backend.
	func SyncWithBackend(ctx context.Context, backend, project string) error {
	switch {
	case backend == "":
	return errors.Reason("backend is required").Err()
	case project == "":
	return errors.Reason("project is required").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: &taskdefs.SyncBuildsWithBackendTasks{
	Backend: backend,
	Project: project,
	},
	})
	}

	// CheckBuildLiveness enqueues a task queue task to check a build's liveness.
	func CheckBuildLiveness(ctx context.Context, buildID int64, heartbeatTimeout uint32, delay time.Duration) error {
	if buildID <= 0 {
	return errors.Reason("build_id is invalid").Err()
	}
	return tq.AddTask(ctx, &tq.Task{
	Payload: &taskdefs.CheckBuildLiveness{
	BuildId: buildID,
	HeartbeatTimeout: heartbeatTimeout,
	},
	Delay: delay,
	})
	}