some linting

container/client.go

@@ -216,10 +216,9 @@ func (client dockerClient) IsContainerStale(c Container) (bool, error) {
 	if newImageInfo.ID != oldImageInfo.ID {
 		log.Infof("Found new %s image (%s)", imageName, newImageInfo.ID)
 		return true, nil
-	} else {
-		log.Debugf("No new images found for %s", c.Name())
 	}
 
+	log.Debugf("No new images found for %s", c.Name())
 	return false, nil
 }
 

container/container.go

@@ -155,7 +155,7 @@ func (c Container) runtimeConfig() *dockercontainer.Config {
 	config.Volumes = structMapSubtract(config.Volumes, imageConfig.Volumes)
 
 	// subtract ports exposed in image from container
-	for k, _ := range config.ExposedPorts {
+	for k := range config.ExposedPorts {
 		if _, ok := imageConfig.ExposedPorts[k]; ok {
 			delete(config.ExposedPorts, k)
 		}

container/filters_test.go

@@ -26,10 +26,11 @@ func TestNoFilter(t *testing.T) {
 }
 
 func TestFilterByNames(t *testing.T) {
-	filter := filterByNames(make([]string, 0), nil)
+	var names []string
+
+	filter := filterByNames(names, nil)
 	assert.Nil(t, filter)
 
-	names := make([]string, 0)
 	names = append(names, "test")
 
 	filter = filterByNames(names, noFilter)
@@ -87,7 +88,7 @@ func TestFilterByDisabledLabel(t *testing.T) {
 }
 
 func TestBuildFilter(t *testing.T) {
-	names := make([]string, 0)
+	var names []string
 	names = append(names, "test")
 
 	filter := BuildFilter(names, false)
@@ -123,7 +124,7 @@ func TestBuildFilter(t *testing.T) {
 }
 
 func TestBuildFilterEnableLabel(t *testing.T) {
-	names := make([]string, 0)
+	var names []string
 	names = append(names, "test")
 
 	filter := BuildFilter(names, true)

container/mocks/FilterableContainer.go

@@ -1,4 +1,3 @@
-// Code generated by mockery v1.0.0
 package mocks
 
 import mock "github.com/stretchr/testify/mock"

container/trust.go

@@ -5,20 +5,18 @@ import (
 	"os"
 	"strings"
 
-	log "github.com/sirupsen/logrus"
 	"github.com/docker/docker/api/types"
 	"github.com/docker/docker/api/types/reference"
 	"github.com/docker/docker/cli/command"
 	"github.com/docker/docker/cliconfig"
 	"github.com/docker/docker/cliconfig/configfile"
 	"github.com/docker/docker/cliconfig/credentials"
+	log "github.com/sirupsen/logrus"
 )
 
-/**
- * Return an encoded auth config for the given registry
- * loaded from environment variables or docker config
- * as available in that order
- */
+// EncodedAuth returns an encoded auth config for the given registry
+// loaded from environment variables or docker config
+// as available in that order
 func EncodedAuth(ref string) (string, error) {
 	auth, err := EncodedEnvAuth(ref)
 	if err != nil {
@@ -27,11 +25,9 @@ func EncodedAuth(ref string) (string, error) {
 	return auth, err
 }
 
-/*
- * Return an encoded auth config for the given registry
- * loaded from environment variables
- * Returns an error if authentication environment variables have not been set
- */
+// EncodedEnvAuth returns an encoded auth config for the given registry
+// loaded from environment variables
+// Returns an error if authentication environment variables have not been set
 func EncodedEnvAuth(ref string) (string, error) {
 	username := os.Getenv("REPO_USER")
 	password := os.Getenv("REPO_PASS")
@@ -42,17 +38,14 @@ func EncodedEnvAuth(ref string) (string, error) {
 		}
 		log.Debugf("Loaded auth credentials %s for %s", auth, ref)
 		return EncodeAuth(auth)
-	} else {
-		return "", errors.New("Registry auth environment variables (REPO_USER, REPO_PASS) not set")
 	}
+	return "", errors.New("Registry auth environment variables (REPO_USER, REPO_PASS) not set")
 }
 
-/*
- * Return an encoded auth config for the given registry
- * loaded from the docker config
- * Returns an empty string if credentials cannot be found for the referenced server
- * The docker config must be mounted on the container
- */
+// EncodedConfigAuth returns an encoded auth config for the given registry
+// loaded from the docker config
+// Returns an empty string if credentials cannot be found for the referenced server
+// The docker config must be mounted on the container
 func EncodedConfigAuth(ref string) (string, error) {
 	server, err := ParseServerAddress(ref)
 	configDir := os.Getenv("DOCKER_CONFIG")
@@ -92,18 +85,14 @@ func CredentialsStore(configFile configfile.ConfigFile) credentials.Store {
 	return credentials.NewFileStore(&configFile)
 }
 
-/*
- * Base64 encode an AuthConfig struct for transmission over HTTP
- */
+// EncodeAuth Base64 encode an AuthConfig struct for transmission over HTTP
 func EncodeAuth(auth types.AuthConfig) (string, error) {
 	return command.EncodeAuthToBase64(auth)
 }
 
-/**
- * This function will be invoked if an AuthConfig is rejected
- * It could be used to return a new value for the "X-Registry-Auth" authentication header,
- * but there's no point trying again with the same value as used in AuthConfig
- */
+// DefaultAuthHandler will be invoked if an AuthConfig is rejected
+// It could be used to return a new value for the "X-Registry-Auth" authentication header,
+// but there's no point trying again with the same value as used in AuthConfig
 func DefaultAuthHandler() (string, error) {
 	log.Debug("Authentication request was rejected. Trying again without authentication")
 	return "", nil