woodpecker/server/grpc/rpc.go

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// Copyright 2022 Woodpecker Authors
// Copyright 2021 Informatyka Boguslawski sp. z o.o. sp.k., http://www.ib.pl/
// Copyright 2018 Drone.IO Inc.
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//
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// 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
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// 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 grpc
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import (
"context"
"encoding/json"
"errors"
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"fmt"
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"strconv"
"time"
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"github.com/prometheus/client_golang/prometheus"
"github.com/rs/zerolog/log"
grpcMetadata "google.golang.org/grpc/metadata"
"go.woodpecker-ci.org/woodpecker/v2/pipeline/rpc"
"go.woodpecker-ci.org/woodpecker/v2/server"
"go.woodpecker-ci.org/woodpecker/v2/server/forge"
"go.woodpecker-ci.org/woodpecker/v2/server/logging"
"go.woodpecker-ci.org/woodpecker/v2/server/model"
"go.woodpecker-ci.org/woodpecker/v2/server/pipeline"
"go.woodpecker-ci.org/woodpecker/v2/server/pubsub"
"go.woodpecker-ci.org/woodpecker/v2/server/queue"
"go.woodpecker-ci.org/woodpecker/v2/server/store"
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)
const updateAgentLastWorkDelay = time.Minute
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type RPC struct {
queue queue.Queue
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pubsub *pubsub.Publisher
logger logging.Log
store store.Store
pipelineTime *prometheus.GaugeVec
pipelineCount *prometheus.CounterVec
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}
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// Next blocks until it provides the next workflow to execute.
func (s *RPC) Next(c context.Context, agentFilter rpc.Filter) (*rpc.Workflow, error) {
if hostname, err := s.getHostnameFromContext(c); err == nil {
log.Debug().Msgf("agent connected: %s: polling", hostname)
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}
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filterFn := createFilterFunc(agentFilter)
agent, err := s.getAgentFromContext(c)
if err != nil {
return nil, err
}
if agent.NoSchedule {
time.Sleep(1 * time.Second)
return nil, nil
}
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for {
// poll blocks until a task is available or the context is canceled / worker is kicked
task, err := s.queue.Poll(c, agent.ID, filterFn)
if err != nil || task == nil {
return nil, err
}
if task.ShouldRun() {
workflow := new(rpc.Workflow)
err = json.Unmarshal(task.Data, workflow)
return workflow, err
}
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// task should not run, so mark it as done
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if err := s.Done(c, task.ID, rpc.WorkflowState{}); err != nil {
log.Error().Err(err).Msgf("marking workflow task '%s' as done failed", task.ID)
}
}
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}
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// Wait blocks until the workflow with the given ID is done.
func (s *RPC) Wait(c context.Context, workflowID string) error {
return s.queue.Wait(c, workflowID)
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}
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// Extend extends the lease for the workflow with the given ID.
func (s *RPC) Extend(c context.Context, workflowID string) error {
agent, err := s.getAgentFromContext(c)
if err != nil {
return err
}
err = s.updateAgentLastWork(agent)
if err != nil {
return err
}
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return s.queue.Extend(c, workflowID)
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}
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// Update updates the state of a step.
func (s *RPC) Update(_ context.Context, strWorkflowID string, state rpc.StepState) error {
workflowID, err := strconv.ParseInt(strWorkflowID, 10, 64)
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if err != nil {
return err
}
workflow, err := s.store.WorkflowLoad(workflowID)
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if err != nil {
log.Error().Err(err).Msgf("rpc.update: cannot find workflow with id %d", workflowID)
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return err
}
currentPipeline, err := s.store.GetPipeline(workflow.PipelineID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find pipeline with id %d", workflow.PipelineID)
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return err
}
step, err := s.store.StepByUUID(state.StepUUID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find step with uuid %s", state.StepUUID)
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return err
}
if step.PipelineID != currentPipeline.ID {
msg := fmt.Sprintf("agent returned status with step uuid '%s' which does not belong to current pipeline", state.StepUUID)
log.Error().
Int64("stepPipelineID", step.PipelineID).
Int64("currentPipelineID", currentPipeline.ID).
Msg(msg)
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return errors.New(msg)
}
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repo, err := s.store.GetRepo(currentPipeline.RepoID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find repo with id %d", currentPipeline.RepoID)
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return err
}
if err := pipeline.UpdateStepStatus(s.store, step, state); err != nil {
log.Error().Err(err).Msg("rpc.update: cannot update step")
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}
if currentPipeline.Workflows, err = s.store.WorkflowGetTree(currentPipeline); err != nil {
log.Error().Err(err).Msg("cannot build tree from step list")
return err
}
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message := pubsub.Message{
Labels: map[string]string{
"repo": repo.FullName,
"private": strconv.FormatBool(repo.IsSCMPrivate),
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},
}
message.Data, err = json.Marshal(model.Event{
Repo: *repo,
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Pipeline: *currentPipeline,
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})
if err != nil {
return err
}
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s.pubsub.Publish(message)
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return nil
}
// Init implements the rpc.Init function.
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func (s *RPC) Init(c context.Context, strWorkflowID string, state rpc.WorkflowState) error {
workflowID, err := strconv.ParseInt(strWorkflowID, 10, 64)
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if err != nil {
return err
}
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workflow, err := s.store.WorkflowLoad(workflowID)
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if err != nil {
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log.Error().Err(err).Msgf("cannot find workflow with id %d", workflowID)
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return err
}
agent, err := s.getAgentFromContext(c)
if err != nil {
return err
}
workflow.AgentID = agent.ID
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currentPipeline, err := s.store.GetPipeline(workflow.PipelineID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find pipeline with id %d", workflow.PipelineID)
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return err
}
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repo, err := s.store.GetRepo(currentPipeline.RepoID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find repo with id %d", currentPipeline.RepoID)
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return err
}
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if currentPipeline.Status == model.StatusPending {
if currentPipeline, err = pipeline.UpdateToStatusRunning(s.store, *currentPipeline, state.Started); err != nil {
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log.Error().Err(err).Msgf("init: cannot update pipeline %d state", currentPipeline.ID)
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}
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}
s.updateForgeStatus(c, repo, currentPipeline, workflow)
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defer func() {
currentPipeline.Workflows, _ = s.store.WorkflowGetTree(currentPipeline)
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message := pubsub.Message{
Labels: map[string]string{
"repo": repo.FullName,
"private": strconv.FormatBool(repo.IsSCMPrivate),
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},
}
message.Data, err = json.Marshal(model.Event{
Repo: *repo,
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Pipeline: *currentPipeline,
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})
if err != nil {
log.Error().Err(err).Msg("could not marshal JSON")
return
}
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s.pubsub.Publish(message)
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}()
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workflow, err = pipeline.UpdateWorkflowStatusToRunning(s.store, *workflow, state)
if err != nil {
return err
}
s.updateForgeStatus(c, repo, currentPipeline, workflow)
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return s.updateAgentLastWork(agent)
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}
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// Done marks the workflow with the given ID as done.
func (s *RPC) Done(c context.Context, strWorkflowID string, state rpc.WorkflowState) error {
workflowID, err := strconv.ParseInt(strWorkflowID, 10, 64)
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if err != nil {
return err
}
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workflow, err := s.store.WorkflowLoad(workflowID)
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if err != nil {
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log.Error().Err(err).Msgf("cannot find workflow with id %d", workflowID)
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return err
}
workflow.Children, err = s.store.StepListFromWorkflowFind(workflow)
if err != nil {
return err
}
currentPipeline, err := s.store.GetPipeline(workflow.PipelineID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find pipeline with id %d", workflow.PipelineID)
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return err
}
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repo, err := s.store.GetRepo(currentPipeline.RepoID)
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if err != nil {
log.Error().Err(err).Msgf("cannot find repo with id %d", currentPipeline.RepoID)
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return err
}
logger := log.With().
Str("repo_id", fmt.Sprint(repo.ID)).
Str("pipeline_id", fmt.Sprint(currentPipeline.ID)).
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Str("workflow_id", strWorkflowID).Logger()
logger.Trace().Msgf("gRPC Done with state: %#v", state)
if workflow, err = pipeline.UpdateWorkflowStatusToDone(s.store, *workflow, state); err != nil {
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logger.Error().Err(err).Msgf("pipeline.UpdateWorkflowStatusToDone: cannot update workflow state: %s", err)
}
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var queueErr error
if workflow.Failing() {
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queueErr = s.queue.Error(c, strWorkflowID, fmt.Errorf("workflow finished with error %s", state.Error))
} else {
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queueErr = s.queue.Done(c, strWorkflowID, workflow.State)
}
if queueErr != nil {
logger.Error().Err(queueErr).Msg("queue.Done: cannot ack workflow")
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}
currentPipeline.Workflows, err = s.store.WorkflowGetTree(currentPipeline)
if err != nil {
return err
}
s.completeChildrenIfParentCompleted(workflow)
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if !model.IsThereRunningStage(currentPipeline.Workflows) {
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if currentPipeline, err = pipeline.UpdateStatusToDone(s.store, *currentPipeline, model.PipelineStatus(currentPipeline.Workflows), workflow.Finished); err != nil {
logger.Error().Err(err).Msgf("pipeline.UpdateStatusToDone: cannot update workflows final state")
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}
}
s.updateForgeStatus(c, repo, currentPipeline, workflow)
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// make sure writes to pubsub are non blocking (https://github.com/woodpecker-ci/woodpecker/blob/c919f32e0b6432a95e1a6d3d0ad662f591adf73f/server/logging/log.go#L9)
go func() {
for _, step := range workflow.Children {
if err := s.logger.Close(c, step.ID); err != nil {
logger.Error().Err(err).Msgf("done: cannot close log stream for step %d", step.ID)
}
}
}()
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if err := s.notify(repo, currentPipeline); err != nil {
return err
}
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if currentPipeline.Status == model.StatusSuccess || currentPipeline.Status == model.StatusFailure {
s.pipelineCount.WithLabelValues(repo.FullName, currentPipeline.Branch, string(currentPipeline.Status), "total").Inc()
s.pipelineTime.WithLabelValues(repo.FullName, currentPipeline.Branch, string(currentPipeline.Status), "total").Set(float64(currentPipeline.Finished - currentPipeline.Started))
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}
if currentPipeline.IsMultiPipeline() {
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s.pipelineTime.WithLabelValues(repo.FullName, currentPipeline.Branch, string(workflow.State), workflow.Name).Set(float64(workflow.Finished - workflow.Started))
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}
agent, err := s.getAgentFromContext(c)
if err != nil {
return err
}
return s.updateAgentLastWork(agent)
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}
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// Log writes a log entry to the database and publishes it to the pubsub.
func (s *RPC) Log(c context.Context, rpcLogEntry *rpc.LogEntry) error {
// convert rpc log_entry to model.log_entry
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step, err := s.store.StepByUUID(rpcLogEntry.StepUUID)
if err != nil {
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return fmt.Errorf("could not find step with uuid %s in store: %w", rpcLogEntry.StepUUID, err)
}
logEntry := &model.LogEntry{
StepID: step.ID,
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Time: rpcLogEntry.Time,
Line: rpcLogEntry.Line,
Data: rpcLogEntry.Data,
Type: model.LogEntryType(rpcLogEntry.Type),
}
// make sure writes to pubsub are non blocking (https://github.com/woodpecker-ci/woodpecker/blob/c919f32e0b6432a95e1a6d3d0ad662f591adf73f/server/logging/log.go#L9)
go func() {
// write line to listening web clients
if err := s.logger.Write(c, logEntry.StepID, logEntry); err != nil {
log.Error().Err(err).Msgf("rpc server could not write to logger")
}
}()
agent, err := s.getAgentFromContext(c)
if err != nil {
return err
}
err = s.updateAgentLastWork(agent)
if err != nil {
return err
}
return server.Config.Services.LogStore.LogAppend(logEntry)
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}
func (s *RPC) RegisterAgent(ctx context.Context, platform, backend, version string, capacity int32) (int64, error) {
agent, err := s.getAgentFromContext(ctx)
if err != nil {
return -1, err
}
if agent.Name == "" {
if hostname, err := s.getHostnameFromContext(ctx); err == nil {
agent.Name = hostname
}
}
agent.Backend = backend
agent.Platform = platform
agent.Capacity = capacity
agent.Version = version
err = s.store.AgentUpdate(agent)
if err != nil {
return -1, err
}
return agent.ID, nil
}
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// UnregisterAgent removes the agent from the database.
func (s *RPC) UnregisterAgent(ctx context.Context) error {
agent, err := s.getAgentFromContext(ctx)
if !agent.IsSystemAgent() {
// registered with individual agent token -> do not unregister
return nil
}
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log.Debug().Msgf("un-registering agent with ID %d", agent.ID)
if err != nil {
return err
}
err = s.store.AgentDelete(agent)
return err
}
func (s *RPC) ReportHealth(ctx context.Context, status string) error {
agent, err := s.getAgentFromContext(ctx)
if err != nil {
return err
}
if status != "I am alive!" {
//nolint:stylecheck
return errors.New("Are you alive?")
}
agent.LastContact = time.Now().Unix()
return s.store.AgentUpdate(agent)
}
func (s *RPC) completeChildrenIfParentCompleted(completedWorkflow *model.Workflow) {
for _, c := range completedWorkflow.Children {
if c.Running() {
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if _, err := pipeline.UpdateStepToStatusSkipped(s.store, *c, completedWorkflow.Finished); err != nil {
log.Error().Err(err).Msgf("done: cannot update step_id %d child state", c.ID)
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}
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}
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}
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}
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func (s *RPC) updateForgeStatus(ctx context.Context, repo *model.Repo, pipeline *model.Pipeline, workflow *model.Workflow) {
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user, err := s.store.GetUser(repo.UserID)
if err != nil {
log.Error().Err(err).Msgf("cannot get user with id '%d'", repo.UserID)
return
}
_forge, err := server.Config.Services.Manager.ForgeFromRepo(repo)
if err != nil {
log.Error().Err(err).Msgf("can not get forge for repo '%s'", repo.FullName)
return
}
forge.Refresh(ctx, _forge, s.store, user)
// only do status updates for parent steps
if workflow != nil {
err = _forge.Status(ctx, user, repo, pipeline, workflow)
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if err != nil {
log.Error().Err(err).Msgf("error setting commit status for %s/%d", repo.FullName, pipeline.Number)
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}
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}
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}
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func (s *RPC) notify(repo *model.Repo, pipeline *model.Pipeline) (err error) {
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message := pubsub.Message{
Labels: map[string]string{
"repo": repo.FullName,
"private": strconv.FormatBool(repo.IsSCMPrivate),
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},
}
message.Data, err = json.Marshal(model.Event{
Repo: *repo,
Pipeline: *pipeline,
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})
if err != nil {
return err
}
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s.pubsub.Publish(message)
return nil
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}
func (s *RPC) getAgentFromContext(ctx context.Context) (*model.Agent, error) {
md, ok := grpcMetadata.FromIncomingContext(ctx)
if !ok {
return nil, errors.New("metadata is not provided")
}
values := md["agent_id"]
if len(values) == 0 {
return nil, errors.New("agent_id is not provided")
}
_agentID := values[0]
agentID, err := strconv.ParseInt(_agentID, 10, 64)
if err != nil {
return nil, errors.New("agent_id is not a valid integer")
}
return s.store.AgentFind(agentID)
}
func (s *RPC) getHostnameFromContext(ctx context.Context) (string, error) {
metadata, ok := grpcMetadata.FromIncomingContext(ctx)
if ok {
hostname, ok := metadata["hostname"]
if ok && len(hostname) != 0 {
return hostname[0], nil
}
}
return "", errors.New("no hostname in metadata")
}
func (s *RPC) updateAgentLastWork(agent *model.Agent) error {
// only update agent.LastWork if not done recently
if time.Unix(agent.LastWork, 0).Add(updateAgentLastWorkDelay).Before(time.Now()) {
return nil
}
agent.LastWork = time.Now().Unix()
if err := s.store.AgentUpdate(agent); err != nil {
return err
}
return nil
}