Golang logger.Fatal函數代碼示例

func (u *S3Uploader) Upload(artifact *api.Artifact) error {
	permission := "public-read"
	if os.Getenv("BUILDKITE_S3_ACL") != "" {
		permission = os.Getenv("BUILDKITE_S3_ACL")
	} else if os.Getenv("AWS_S3_ACL") != "" {
		permission = os.Getenv("AWS_S3_ACL")
	}

	// The dirtiest validation method ever...
	if permission != "private" &&
		permission != "public-read" &&
		permission != "public-read-write" &&
		permission != "authenticated-read" &&
		permission != "bucket-owner-read" &&
		permission != "bucket-owner-full-control" {
		logger.Fatal("Invalid S3 ACL `%s`", permission)
	}

	Perms := s3.ACL(permission)

	logger.Debug("Reading file \"%s\"", artifact.AbsolutePath)
	data, err := ioutil.ReadFile(artifact.AbsolutePath)
	if err != nil {
		return errors.New("Failed to read file " + artifact.AbsolutePath + " (" + err.Error() + ")")
	}

	logger.Debug("Uploading \"%s\" to bucket with permission `%s`", u.artifactPath(artifact), permission)
	err = u.Bucket.Put(u.artifactPath(artifact), data, u.mimeType(artifact), Perms, s3.Options{})
	if err != nil {
		return errors.New(fmt.Sprintf("Failed to PUT file \"%s\" (%s)", u.artifactPath(artifact), err.Error()))
	}

	return nil
}

func (u *GSUploader) Upload(artifact *api.Artifact) error {
	permission := os.Getenv("BUILDKITE_GS_ACL")

	// The dirtiest validation method ever...
	if permission != "" &&
		permission != "authenticatedRead" &&
		permission != "private" &&
		permission != "projectPrivate" &&
		permission != "publicRead" &&
		permission != "publicReadWrite" {
		logger.Fatal("Invalid GS ACL `%s`", permission)
	}

	if permission == "" {
		logger.Debug("Uploading \"%s\" to bucket \"%s\" with default permission",
			u.artifactPath(artifact), u.BucketName())
	} else {
		logger.Debug("Uploading \"%s\" to bucket \"%s\" with permission \"%s\"",
			u.artifactPath(artifact), u.BucketName(), permission)
	}
	object := &storage.Object{
		Name:        u.artifactPath(artifact),
		ContentType: u.mimeType(artifact),
	}
	file, err := os.Open(artifact.AbsolutePath)
	if err != nil {
		return errors.New(fmt.Sprintf("Failed to open file \"%q\" (%v)", artifact.AbsolutePath, err))
	}
	call := u.Service.Objects.Insert(u.BucketName(), object)
	if permission != "" {
		call = call.PredefinedAcl(permission)
	}
	if res, err := call.Media(file).Do(); err == nil {
		logger.Debug("Created object %v at location %v\n\n", res.Name, res.SelfLink)
	} else {
		return errors.New(fmt.Sprintf("Failed to PUT file \"%s\" (%v)", u.artifactPath(artifact), err))
	}

	return nil
}

			Usage:  "Which job should the artifacts be uploaded to",
			EnvVar: "BUILDKITE_JOB_ID",
		},
		AgentAccessTokenFlag,
		EndpointFlag,
		NoColorFlag,
		DebugFlag,
		DebugHTTPFlag,
	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := ArtifactUploadConfig{}

		// Load the configuration
		if err := cliconfig.Load(c, &cfg); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Setup the uploader
		uploader := agent.ArtifactUploader{
			APIClient: agent.APIClient{
				Endpoint: cfg.Endpoint,
				Token:    cfg.AgentAccessToken,
			}.Create(),
			JobID:       cfg.Job,
			Paths:       cfg.UploadPaths,
			Destination: cfg.Destination,
		}

			EnvVar: "BUILDKITE_JOB_ID",
		},
		AgentAccessTokenFlag,
		EndpointFlag,
		NoColorFlag,
		DebugFlag,
		DebugHTTPFlag,
	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := PipelineUploadConfig{}

		// Load the configuration
		loader := cliconfig.Loader{CLI: c, Config: &cfg}
		if err := loader.Load(); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Find the pipeline file either from STDIN or the first
		// argument
		var input []byte
		var err error
		var filename string

		if cfg.FilePath != "" {
			filename = filepath.Base(cfg.FilePath)
			input, err = ioutil.ReadFile(cfg.FilePath)
			if err != nil {

			EnvVar: "BUILDKITE_BUILD_ID",
			Usage:  "The build that the artifacts were uploaded to",
		},
		AgentAccessTokenFlag,
		EndpointFlag,
		NoColorFlag,
		DebugFlag,
		DebugHTTPFlag,
	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := ArtifactShasumConfig{}

		// Load the configuration
		if err := cliconfig.Load(c, &cfg); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Find the artifact we want to show the SHASUM for
		searcher := agent.ArtifactSearcher{
			APIClient: agent.APIClient{
				Endpoint: cfg.Endpoint,
				Token:    cfg.AgentAccessToken,
			}.Create(),
			BuildID: cfg.Build,
		}

		artifacts, err := searcher.Search(cfg.Query, cfg.Step)

			Usage:  "Which job should the meta-data be retrieved from",
			EnvVar: "BUILDKITE_JOB_ID",
		},
		AgentAccessTokenFlag,
		EndpointFlag,
		NoColorFlag,
		DebugFlag,
		DebugHTTPFlag,
	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := MetaDataGetConfig{}

		// Load the configuration
		if err := cliconfig.Load(c, &cfg); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Create the API client
		client := agent.APIClient{
			Endpoint: cfg.Endpoint,
			Token:    cfg.AgentAccessToken,
		}.Create()

		// Find the meta data value
		var metaData *api.MetaData
		var err error
		var resp *api.Response

	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := AgentStartConfig{}

		// Setup the config loader. You'll see that we also path paths to
		// potential config files. The loader will use the first one it finds.
		loader := cliconfig.Loader{
			CLI:                    c,
			Config:                 &cfg,
			DefaultConfigFilePaths: DefaultConfigFilePaths(),
		}

		// Load the configuration
		if err := loader.Load(); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Force some settings if on Windows (these aren't supported
		// yet)
		if runtime.GOOS == "windows" {
			cfg.NoPTY = true
		}

		// Setup the agent
		pool := agent.AgentPool{
			Token:           cfg.Token,
			Name:            cfg.Name,

func (r *AgentPool) Start() error {
	// Show the welcome banner and config options used
	r.ShowBanner()

	// Create the agent registration API Client
	r.APIClient = APIClient{Endpoint: r.Endpoint, Token: r.Token}.Create()

	// Create the agent template. We use pass this template to the register
	// call, at which point we get back a real agent.
	template := r.CreateAgentTemplate()

	logger.Info("Registering agent with Buildkite...")

	// Register the agent
	registered, err := r.RegisterAgent(template)
	if err != nil {
		logger.Fatal("%s", err)
	}

	logger.Info("Successfully registered agent \"%s\" with meta-data %s", registered.Name, registered.MetaData)

	logger.Debug("Ping interval: %ds", registered.PingInterval)
	logger.Debug("Heartbeat interval: %ds", registered.HearbeatInterval)

	// Now that we have a registereted agent, we can connect it to the API,
	// and start running jobs.
	worker := AgentWorker{Agent: registered, AgentConfiguration: r.AgentConfiguration, Endpoint: r.Endpoint}.Create()

	logger.Info("Connecting to Buildkite...")
	if err := worker.Connect(); err != nil {
		logger.Fatal("%s", err)
	}

	logger.Info("Agent successfully connected")
	logger.Info("You can press Ctrl-C to stop the agent")
	logger.Info("Waiting for work...")

	// Start a signalwatcher so we can monitor signals and handle shutdowns
	signalwatcher.Watch(func(sig signalwatcher.Signal) {
		if sig == signalwatcher.QUIT {
			logger.Debug("Received signal `%s`", sig.String())
			worker.Stop(false)
		} else if sig == signalwatcher.TERM || sig == signalwatcher.INT {
			logger.Debug("Received signal `%s`", sig.String())
			worker.Stop(true)
		} else {
			logger.Debug("Ignoring signal `%s`", sig.String())
		}
	})

	// Starts the agent worker. This will block until the agent has
	// finished or is stopped.
	if err := worker.Start(); err != nil {
		logger.Fatal("%s", err)
	}

	// Now that the agent has stopped, we can disconnect it
	logger.Info("Disconnecting %s...", worker.Agent.Name)
	worker.Disconnect()

	return nil
}

//.........這裏部分代碼省略.........
	// seconds in batches
	go func() {
		for artifactStatesUploaded < len(artifacts) {
			statesToUpload := make(map[string]string)

			// Grab all the states we need to upload, and remove
			// them from the tracking map
			for id, state := range artifactsStates {
				statesToUpload[id] = state
				delete(artifactsStates, id)
			}

			if len(statesToUpload) > 0 {
				artifactStatesUploaded += len(statesToUpload)
				for id, state := range statesToUpload {
					logger.Debug("Artifact `%s` has state `%s`", id, state)
				}

				// Update the states of the artifacts in bulk.
				err = retry.Do(func(s *retry.Stats) error {
					_, err = a.APIClient.Artifacts.Update(a.JobID, statesToUpload)
					if err != nil {
						logger.Warn("%s (%s)", err, s)
					}

					return err
				}, &retry.Config{Maximum: 10, Interval: 1 * time.Second})

				if err != nil {
					logger.Error("Error uploading artifact states: %s", err)

					// Track the error that was raised
					p.Lock()
					errors = append(errors, err)
					p.Unlock()
				}

				logger.Debug("Uploaded %d artfact states (%d/%d)", len(statesToUpload), artifactStatesUploaded, len(artifacts))
			}

			// Check again for states to upload in a few seconds
			time.Sleep(1 * time.Second)
		}

		stateUploaderWaitGroup.Done()
	}()

	for _, artifact := range artifacts {
		// Create new instance of the artifact for the goroutine
		// See: http://golang.org/doc/effective_go.html#channels
		artifact := artifact

		p.Spawn(func() {
			// Show a nice message that we're starting to upload the file
			logger.Info("Uploading \"%s\" %d bytes", artifact.Path, artifact.FileSize)

			// Upload the artifact and then set the state depending
			// on whether or not it passed. We'll retry the upload
			// a couple of times before giving up.
			err = retry.Do(func(s *retry.Stats) error {
				err := uploader.Upload(artifact)
				if err != nil {
					logger.Warn("%s (%s)", err, s)
				}

				return err
			}, &retry.Config{Maximum: 10, Interval: 1 * time.Second})

			var state string

			// Did the upload eventually fail?
			if err != nil {
				logger.Error("Error uploading artifact \"%s\": %s", artifact.Path, err)

				// Track the error that was raised
				p.Lock()
				errors = append(errors, err)
				p.Unlock()

				state = "error"
			} else {
				state = "finished"
			}

			artifactsStates[artifact.ID] = state
		})
	}

	// Wait for the pool to finish
	p.Wait()

	// Wait for the statuses to finish uploading
	stateUploaderWaitGroup.Wait()

	if len(errors) > 0 {
		logger.Fatal("There were errors with uploading some of the artifacts")
	}

	return nil
}

			Usage:  "Which job should the meta-data be checked for",
			EnvVar: "BUILDKITE_JOB_ID",
		},
		AgentAccessTokenFlag,
		EndpointFlag,
		NoColorFlag,
		DebugFlag,
		DebugHTTPFlag,
	},
	Action: func(c *cli.Context) {
		// The configuration will be loaded into this struct
		cfg := MetaDataExistsConfig{}

		// Load the configuration
		if err := cliconfig.Load(c, &cfg); err != nil {
			logger.Fatal("%s", err)
		}

		// Setup the any global configuration options
		HandleGlobalFlags(cfg)

		// Create the API client
		client := agent.APIClient{
			Endpoint: cfg.Endpoint,
			Token:    cfg.AgentAccessToken,
		}.Create()

		// Find the meta data value
		var err error
		var exists *api.MetaDataExists
		var resp *api.Response

func (a *ArtifactDownloader) Download() error {
	// Turn the download destination into an absolute path and confirm it exists
	downloadDestination, _ := filepath.Abs(a.Destination)
	fileInfo, err := os.Stat(downloadDestination)
	if err != nil {
		logger.Fatal("Could not find information about destination: %s", downloadDestination)
	}
	if !fileInfo.IsDir() {
		logger.Fatal("%s is not a directory", downloadDestination)
	}

	// Find the artifacts that we want to download
	searcher := ArtifactSearcher{BuildID: a.BuildID, APIClient: a.APIClient}
	artifacts, err := searcher.Search(a.Query, a.Step)
	if err != nil {
		return err
	}

	artifactCount := len(artifacts)

	if artifactCount == 0 {
		logger.Info("No artifacts found for downloading")
	} else {
		logger.Info("Found %d artifacts. Starting to download to: %s", artifactCount, downloadDestination)

		p := pool.New(pool.MaxConcurrencyLimit)
		errors := []error{}

		for _, artifact := range artifacts {
			// Create new instance of the artifact for the goroutine
			// See: http://golang.org/doc/effective_go.html#channels
			artifact := artifact

			p.Spawn(func() {
				var err error

				// Handle downloading from S3 and GS
				if strings.HasPrefix(artifact.UploadDestination, "s3://") {
					err = S3Downloader{
						Path:        artifact.Path,
						Bucket:      artifact.UploadDestination,
						Destination: downloadDestination,
						Retries:     5,
						DebugHTTP:   a.APIClient.DebugHTTP,
					}.Start()
				} else if strings.HasPrefix(artifact.UploadDestination, "gs://") {
					err = GSDownloader{
						Path:        artifact.Path,
						Bucket:      artifact.UploadDestination,
						Destination: downloadDestination,
						Retries:     5,
						DebugHTTP:   a.APIClient.DebugHTTP,
					}.Start()
				} else {
					err = Download{
						URL:         artifact.URL,
						Path:        artifact.Path,
						Destination: downloadDestination,
						Retries:     5,
						DebugHTTP:   a.APIClient.DebugHTTP,
					}.Start()
				}

				// If the downloaded encountered an error, lock
				// the pool, collect it, then unlock the pool
				// again.
				if err != nil {
					logger.Error("Failed to download artifact: %s", err)

					p.Lock()
					errors = append(errors, err)
					p.Unlock()
				}
			})
		}

		p.Wait()

		if len(errors) > 0 {
			logger.Fatal("There were errors with downloading some of the artifacts")
		}
	}

	return nil
}

func (a *ArtifactUploader) upload(artifacts []*api.Artifact) error {
	var uploader Uploader

	// Determine what uploader to use
	if a.Destination != "" {
		if strings.HasPrefix(a.Destination, "s3://") {
			uploader = new(S3Uploader)
		} else {
			return errors.New("Unknown upload destination: " + a.Destination)
		}
	} else {
		uploader = new(FormUploader)
	}

	// Setup the uploader
	err := uploader.Setup(a.Destination)
	if err != nil {
		return err
	}

	// Set the URL's of the artifacts based on the uploader
	for _, artifact := range artifacts {
		artifact.URL = uploader.URL(artifact)
	}

	// Create the artifacts on Buildkite
	batchCreator := ArtifactBatchCreator{
		APIClient: a.APIClient,
		JobID:     a.JobID,
		Artifacts: artifacts,
	}
	artifacts, err = batchCreator.Create()
	if err != nil {
		return err
	}

	p := pool.New(pool.MaxConcurrencyLimit)
	errors := []error{}

	for _, artifact := range artifacts {
		// Create new instance of the artifact for the goroutine
		// See: http://golang.org/doc/effective_go.html#channels
		artifact := artifact

		p.Spawn(func() {
			// Show a nice message that we're starting to upload the file
			logger.Info("Uploading \"%s\" %d bytes", artifact.Path, artifact.FileSize)

			// Upload the artifact and then set the state depending
			// on whether or not it passed. We'll retry the upload
			// a couple of times before giving up.
			err = retry.Do(func(s *retry.Stats) error {
				err := uploader.Upload(artifact)
				if err != nil {
					logger.Warn("%s (%s)", err, s)
				}

				return err
			}, &retry.Config{Maximum: 10, Interval: 1 * time.Second})
			if err != nil {
				artifact.State = "error"
				logger.Error("Error uploading artifact \"%s\": %s", artifact.Path, err)

				// Track the error that was raised
				p.Lock()
				errors = append(errors, err)
				p.Unlock()
			} else {
				artifact.State = "finished"
			}

			// Update the state of the artifact on Buildkite, we
			// retry this as well.
			err = retry.Do(func(s *retry.Stats) error {
				_, _, err = a.APIClient.Artifacts.Update(a.JobID, artifact)
				if err != nil {
					logger.Warn("%s (%s)", err, s)
				}

				return err
			}, &retry.Config{Maximum: 10, Interval: 1 * time.Second})
			if err != nil {
				logger.Error("Error marking artifact %s as uploaded: %s", artifact.Path, err)

				// Track the error that was raised
				p.Lock()
				errors = append(errors, err)
				p.Unlock()
			}
		})
	}

	p.Wait()

	if len(errors) > 0 {
		logger.Fatal("There were errors with uploading some of the artifacts")
	}

	return nil
}