removed capitalized error messages

cmd/amp/config.go

@@ -1,7 +1,6 @@
 package main
 
 import (
-	"encoding/json"
 	"fmt"
 	"log"
 	"strconv"
@@ -16,29 +15,20 @@ func init() {
 	// configCmd represents the Config command
 	configCmd := &cobra.Command{
 		Use:   "config",
-		Short: "Display or update configuration",
-		Long: `With no argument, display the current configuration.
-			With one argument, display the value for this key
-			With two arguments, set the value for the key (respectively 2nd and 1st arg)`,
+		Short: "Display the current configuration",
+		Long:  `Display the current configuration.`,
 		Run: func(cmd *cobra.Command, args []string) {
 			switch len(args) {
 			case 0:
-				// Display full configuration
-				j, err := json.MarshalIndent(structs.Map(Config), "", "  ")
-				if err != nil {
-					fmt.Println("error:", err)
-				}
-				fmt.Println(string(j))
+				fmt.Println(Config)
 			case 1:
-				// Display one key
 				s := structs.New(Config)
 				f, ok := s.FieldOk(strings.Title(args[0]))
 				if !ok {
 					log.Fatalf("Field %s not found", strings.Title(args[0]))
 				}
 				fmt.Println(f.Value())
 			case 2:
-				// Change one key
 				s := structs.New(Config)
 				f, ok := s.FieldOk(strings.Title(args[0]))
 				if !ok {
@@ -54,7 +44,7 @@ func init() {
 				case "string":
 					f.Set(args[1])
 				default:
-					log.Fatal("unsupported field type")
+					log.Fatal("Unsupported field type")
 				}
 				err := cli.SaveConfiguration(Config)
 				if err != nil {

cmd/amp/platform_manager.go

@@ -87,7 +87,7 @@ func (s *ampManager) init(firstMessage string) error {
 	defaultHeaders := map[string]string{"User-Agent": "amplifier"}
 	cli, err := client.NewClient(DockerURL, DockerVersion, nil, defaultHeaders)
 	if err != nil {
-		return fmt.Errorf("Impossible to connect to Docker on: %s\n%v", DockerURL, err)
+		return fmt.Errorf("impossible to connect to Docker on: %s\n%v", DockerURL, err)
 	}
 	s.docker = cli
 	return nil
@@ -384,7 +384,7 @@ func (s *ampManager) updateServiceStates(service *ampService) error {
 						s.forceService(service)
 						return nil
 					}
-					return fmt.Errorf("Service %s startup timeout", service.name)
+					return fmt.Errorf("service %s startup timeout", service.name)
 				}
 			}
 			service.ready = false
@@ -466,7 +466,7 @@ func (s *ampManager) createService(service *ampService) error {
 			s.forceService(service)
 			return nil
 		}
-		return fmt.Errorf("Service %s image %s doesn't exist", service.name, service.image)
+		return fmt.Errorf("service %s image %s doesn't exist", service.name, service.image)
 	}
 	r, err := s.docker.ServiceCreate(s.ctx, *service.spec, options)
 	if err != nil {
@@ -598,7 +598,7 @@ func (s *ampManager) cleanVolume(name string) error {
 			return nil
 		}
 		if time.Now().Sub(started) > 30*time.Second {
-			return fmt.Errorf("Timeout waiting for all services removed")
+			return fmt.Errorf("timeout waiting for all services removed")
 		}
 		time.Sleep(1 * time.Second)
 	}

cmd/amp/registry.go

@@ -81,7 +81,7 @@ func RegistryPush(amp *client.AMP, cmd *cobra.Command, args []string) error {
 	ac := types.AuthConfig{Username: "none"}
 	jsonString, err := json.Marshal(ac)
 	if err != nil {
-		return errors.New("Failed to marshal authconfig")
+		return errors.New("failed to marshal authconfig")
 	}
 	dst := make([]byte, base64.URLEncoding.EncodedLen(len(jsonString)))
 	base64.URLEncoding.Encode(dst, jsonString)
@@ -91,10 +91,10 @@ func RegistryPush(amp *client.AMP, cmd *cobra.Command, args []string) error {
 	image := args[0]
 	distributionRef, err := distreference.ParseNamed(image)
 	if err != nil {
-		return fmt.Errorf("Error parsing reference: %q is not a valid repository/tag", image)
+		return fmt.Errorf("error parsing reference: %q is not a valid repository/tag", image)
 	}
 	if _, isCanonical := distributionRef.(distreference.Canonical); isCanonical {
-		return errors.New("Refusing to create a tag with a digest reference")
+		return errors.New("refusing to create a tag with a digest reference")
 	}
 	tag := reference.GetTagFromNamedRef(distributionRef)
 	hostname, name := distreference.SplitHostname(distributionRef)
@@ -124,7 +124,7 @@ func RegistryPush(amp *client.AMP, cmd *cobra.Command, args []string) error {
 	re := regexp.MustCompile(`: digest: sha256:`)
 	if !re.Match(body) {
 		fmt.Print(string(body))
-		return errors.New("Push failed")
+		return errors.New("push failed")
 	}
 	return nil
 }

cmd/amp/topic-create.go

@@ -27,11 +27,11 @@ func init() {
 
 func createTopic(amp *client.AMP, cmd *cobra.Command, args []string) error {
 	if len(args) == 0 {
-		return errors.New("Must specify topic name")
+		return errors.New("must specify topic name")
 	}
 	name := args[0]
 	if name == "" {
-		return errors.New("Must specify topic name")
+		return errors.New("must specify topic name")
 	}
 
 	request := &topic.CreateRequest{Topic: &topic.TopicEntry{