Lintify code with confidence=1

api.go

@@ -149,13 +149,12 @@ func postContainersKill(srv *Server, version float64, w http.ResponseWriter, r *
 
 	signal := 0
 	if r != nil {
-		s := r.Form.Get("signal")
-		if s != "" {
-			if s, err := strconv.Atoi(s); err != nil {
+		if s := r.Form.Get("signal"); s != "" {
+			s, err := strconv.Atoi(s)
+			if err != nil {
 				return err
-			} else {
-				signal = s
 			}
+			signal = s
 		}
 	}
 	if err := srv.ContainerKill(name, signal); err != nil {
@@ -201,9 +200,8 @@ func getImagesJSON(srv *Server, version float64, w http.ResponseWriter, r *http.
 		}
 
 		return writeJSON(w, http.StatusOK, outs2)
-	} else {
-		return writeJSON(w, http.StatusOK, outs)
 	}
+	return writeJSON(w, http.StatusOK, outs)
 }
 
 func getImagesViz(srv *Server, version float64, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
@@ -316,13 +314,10 @@ func getContainersTop(srv *Server, version float64, w http.ResponseWriter, r *ht
 	if err := parseForm(r); err != nil {
 		return err
 	}
-	name := vars["name"]
-	ps_args := r.Form.Get("ps_args")
-	procsStr, err := srv.ContainerTop(name, ps_args)
+	procsStr, err := srv.ContainerTop(vars["name"], r.Form.Get("ps_args"))
 	if err != nil {
 		return err
 	}
-
 	return writeJSON(w, http.StatusOK, procsStr)
 }
 
@@ -350,13 +345,12 @@ func getContainersJSON(srv *Server, version float64, w http.ResponseWriter, r *h
 	if version < 1.5 {
 		outs2 := []APIContainersOld{}
 		for _, ctnr := range outs {
-			outs2 = append(outs2, ctnr.ToLegacy())
+			outs2 = append(outs2, *ctnr.ToLegacy())
 		}
 
 		return writeJSON(w, http.StatusOK, outs2)
-	} else {
-		return writeJSON(w, http.StatusOK, outs)
 	}
+	return writeJSON(w, http.StatusOK, outs)
 }
 
 func postImagesTag(srv *Server, version float64, w http.ResponseWriter, r *http.Request, vars map[string]string) error {
@@ -640,12 +634,10 @@ func deleteImages(srv *Server, version float64, w http.ResponseWriter, r *http.R
 	if imgs != nil {
 		if len(imgs) != 0 {
 			return writeJSON(w, http.StatusOK, imgs)
-		} else {
-			return fmt.Errorf("Conflict, %s wasn't deleted", name)
 		}
-	} else {
-		w.WriteHeader(http.StatusNoContent)
+		return fmt.Errorf("Conflict, %s wasn't deleted", name)
 	}
+	w.WriteHeader(http.StatusNoContent)
 	return nil
 }
 

api_params.go

@@ -2,149 +2,147 @@ package docker
 
 import "strings"
 
-type APIHistory struct {
-	ID        string   `json:"Id"`
-	Tags      []string `json:",omitempty"`
-	Created   int64
-	CreatedBy string `json:",omitempty"`
-	Size      int64
-}
-
-type APIImages struct {
-	ID          string   `json:"Id"`
-	RepoTags    []string `json:",omitempty"`
-	Created     int64
-	Size        int64
-	VirtualSize int64
-	ParentId    string `json:",omitempty"`
-}
-
-type APIImagesOld struct {
-	Repository  string `json:",omitempty"`
-	Tag         string `json:",omitempty"`
-	ID          string `json:"Id"`
-	Created     int64
-	Size        int64
-	VirtualSize int64
-}
-
-func (self *APIImages) ToLegacy() []APIImagesOld {
-
-	outs := []APIImagesOld{}
-	for _, repotag := range self.RepoTags {
+type (
+	APIHistory struct {
+		ID        string   `json:"Id"`
+		Tags      []string `json:",omitempty"`
+		Created   int64
+		CreatedBy string `json:",omitempty"`
+		Size      int64
+	}
 
-		components := strings.SplitN(repotag, ":", 2)
+	APIImages struct {
+		ID          string   `json:"Id"`
+		RepoTags    []string `json:",omitempty"`
+		Created     int64
+		Size        int64
+		VirtualSize int64
+		ParentId    string `json:",omitempty"`
+	}
 
-		outs = append(outs, APIImagesOld{
-			ID:          self.ID,
-			Repository:  components[0],
-			Tag:         components[1],
-			Created:     self.Created,
-			Size:        self.Size,
-			VirtualSize: self.VirtualSize,
-		})
+	APIImagesOld struct {
+		Repository  string `json:",omitempty"`
+		Tag         string `json:",omitempty"`
+		ID          string `json:"Id"`
+		Created     int64
+		Size        int64
+		VirtualSize int64
 	}
 
-	return outs
-}
+	APIInfo struct {
+		Debug              bool
+		Containers         int
+		Images             int
+		NFd                int    `json:",omitempty"`
+		NGoroutines        int    `json:",omitempty"`
+		MemoryLimit        bool   `json:",omitempty"`
+		SwapLimit          bool   `json:",omitempty"`
+		IPv4Forwarding     bool   `json:",omitempty"`
+		LXCVersion         string `json:",omitempty"`
+		NEventsListener    int    `json:",omitempty"`
+		KernelVersion      string `json:",omitempty"`
+		IndexServerAddress string `json:",omitempty"`
+	}
 
-type APIInfo struct {
-	Debug              bool
-	Containers         int
-	Images             int
-	NFd                int    `json:",omitempty"`
-	NGoroutines        int    `json:",omitempty"`
-	MemoryLimit        bool   `json:",omitempty"`
-	SwapLimit          bool   `json:",omitempty"`
-	IPv4Forwarding     bool   `json:",omitempty"`
-	LXCVersion         string `json:",omitempty"`
-	NEventsListener    int    `json:",omitempty"`
-	KernelVersion      string `json:",omitempty"`
-	IndexServerAddress string `json:",omitempty"`
-}
+	APITop struct {
+		Titles    []string
+		Processes [][]string
+	}
 
-type APITop struct {
-	Titles    []string
-	Processes [][]string
-}
+	APIRmi struct {
+		Deleted  string `json:",omitempty"`
+		Untagged string `json:",omitempty"`
+	}
 
-type APIRmi struct {
-	Deleted  string `json:",omitempty"`
-	Untagged string `json:",omitempty"`
-}
+	APIContainers struct {
+		ID         string `json:"Id"`
+		Image      string
+		Command    string
+		Created    int64
+		Status     string
+		Ports      []APIPort
+		SizeRw     int64
+		SizeRootFs int64
+		Names      []string
+	}
 
-type APIContainers struct {
-	ID         string `json:"Id"`
-	Image      string
-	Command    string
-	Created    int64
-	Status     string
-	Ports      []APIPort
-	SizeRw     int64
-	SizeRootFs int64
-	Names      []string
-}
+	APIContainersOld struct {
+		ID         string `json:"Id"`
+		Image      string
+		Command    string
+		Created    int64
+		Status     string
+		Ports      string
+		SizeRw     int64
+		SizeRootFs int64
+	}
 
-func (self *APIContainers) ToLegacy() APIContainersOld {
-	return APIContainersOld{
-		ID:         self.ID,
-		Image:      self.Image,
-		Command:    self.Command,
-		Created:    self.Created,
-		Status:     self.Status,
-		Ports:      displayablePorts(self.Ports),
-		SizeRw:     self.SizeRw,
-		SizeRootFs: self.SizeRootFs,
+	APIID struct {
+		ID string `json:"Id"`
 	}
-}
 
-type APIContainersOld struct {
-	ID         string `json:"Id"`
-	Image      string
-	Command    string
-	Created    int64
-	Status     string
-	Ports      string
-	SizeRw     int64
-	SizeRootFs int64
-}
+	APIRun struct {
+		ID       string   `json:"Id"`
+		Warnings []string `json:",omitempty"`
+	}
 
-type APIID struct {
-	ID string `json:"Id"`
-}
+	APIPort struct {
+		PrivatePort int64
+		PublicPort  int64
+		Type        string
+		IP          string
+	}
 
-type APIRun struct {
-	ID       string   `json:"Id"`
-	Warnings []string `json:",omitempty"`
-}
+	APIVersion struct {
+		Version   string
+		GitCommit string `json:",omitempty"`
+		GoVersion string `json:",omitempty"`
+	}
 
-type APIPort struct {
-	PrivatePort int64
-	PublicPort  int64
-	Type        string
-	IP          string
-}
+	APIWait struct {
+		StatusCode int
+	}
 
-type APIVersion struct {
-	Version   string
-	GitCommit string `json:",omitempty"`
-	GoVersion string `json:",omitempty"`
-}
+	APIAuth struct {
+		Status string
+	}
 
-type APIWait struct {
-	StatusCode int
-}
+	APIImageConfig struct {
+		ID string `json:"Id"`
+		*Config
+	}
 
-type APIAuth struct {
-	Status string
-}
+	APICopy struct {
+		Resource string
+		HostPath string
+	}
+)
 
-type APIImageConfig struct {
-	ID string `json:"Id"`
-	*Config
+func (api APIImages) ToLegacy() []APIImagesOld {
+	outs := []APIImagesOld{}
+	for _, repotag := range api.RepoTags {
+		components := strings.SplitN(repotag, ":", 2)
+		outs = append(outs, APIImagesOld{
+			ID:          api.ID,
+			Repository:  components[0],
+			Tag:         components[1],
+			Created:     api.Created,
+			Size:        api.Size,
+			VirtualSize: api.VirtualSize,
+		})
+	}
+	return outs
 }
 
-type APICopy struct {
-	Resource string
-	HostPath string
+func (api APIContainers) ToLegacy() *APIContainersOld {
+	return &APIContainersOld{
+		ID:         api.ID,
+		Image:      api.Image,
+		Command:    api.Command,
+		Created:    api.Created,
+		Status:     api.Status,
+		Ports:      displayablePorts(api.Ports),
+		SizeRw:     api.SizeRw,
+		SizeRootFs: api.SizeRootFs,
+	}
 }

archive/archive.go

@@ -109,16 +109,17 @@ func Untar(archive io.Reader, path string) error {
 	buf := make([]byte, 10)
 	totalN := 0
 	for totalN < 10 {
-		if n, err := archive.Read(buf[totalN:]); err != nil {
+		n, err := archive.Read(buf[totalN:])
+		if err != nil {
 			if err == io.EOF {
 				return fmt.Errorf("Tarball too short")
 			}
 			return err
-		} else {
-			totalN += n
-			utils.Debugf("[tar autodetect] n: %d", n)
 		}
+		totalN += n
+		utils.Debugf("[tar autodetect] n: %d", n)
 	}
+
 	compression := DetectCompression(buf)
 
 	utils.Debugf("Archive compression detected: %s", compression.Extension())

auth/auth.go

@@ -196,10 +196,9 @@ func Login(authConfig *AuthConfig, factory *utils.HTTPRequestFactory) (string, e
 		if loginAgainstOfficialIndex {
 			return "", fmt.Errorf("Login: Your account hasn't been activated. " +
 				"Please check your e-mail for a confirmation link.")
-		} else {
-			return "", fmt.Errorf("Login: Your account hasn't been activated. " +
-				"Please see the documentation of the registry " + serverAddress + " for instructions how to activate it.")
 		}
+		return "", fmt.Errorf("Login: Your account hasn't been activated. " +
+			"Please see the documentation of the registry " + serverAddress + " for instructions how to activate it.")
 	} else if reqStatusCode == 400 {
 		if string(reqBody) == "\"Username or email already exists\"" {
 			req, err := factory.NewRequest("GET", serverAddress+"users/", nil)

commands.go

@@ -2073,10 +2073,9 @@ func (cli *DockerCli) stream(method, path string, in io.Reader, out io.Writer, h
 
 	if matchesContentType(resp.Header.Get("Content-Type"), "application/json") {
 		return utils.DisplayJSONMessagesStream(resp.Body, out)
-	} else {
-		if _, err := io.Copy(out, resp.Body); err != nil {
-			return err
-		}
+	}
+	if _, err := io.Copy(out, resp.Body); err != nil {
+		return err
 	}
 	return nil
 }

graph.go

@@ -220,12 +220,11 @@ func (graph *Graph) getDockerInitLayer() (string, error) {
 					if err := os.MkdirAll(path.Join(initLayer, path.Dir(pth)), 0755); err != nil {
 						return "", err
 					}
-
-					if f, err := os.OpenFile(path.Join(initLayer, pth), os.O_CREATE, 0755); err != nil {
+					f, err := os.OpenFile(path.Join(initLayer, pth), os.O_CREATE, 0755)
+					if err != nil {
 						return "", err
-					} else {
-						f.Close()
 					}
+					f.Close()
 				}
 			} else {
 				return "", err

image.go

@@ -54,11 +54,11 @@ func LoadImage(root string) (*Image, error) {
 			return nil, err
 		}
 	} else {
-		if size, err := strconv.Atoi(string(buf)); err != nil {
+		size, err := strconv.Atoi(string(buf))
+		if err != nil {
 			return nil, err
-		} else {
-			img.Size = int64(size)
 		}
+		img.Size = int64(size)
 	}
 
 	// Check that the filesystem layer exists
@@ -99,14 +99,14 @@ func StoreImage(img *Image, jsonData []byte, layerData archive.Archive, root str
 	// If raw json is provided, then use it
 	if jsonData != nil {
 		return ioutil.WriteFile(jsonPath(root), jsonData, 0600)
-	} else { // Otherwise, unmarshal the image
-		jsonData, err := json.Marshal(img)
-		if err != nil {
-			return err
-		}
-		if err := ioutil.WriteFile(jsonPath(root), jsonData, 0600); err != nil {
-			return err
-		}
+	}
+	// Otherwise, unmarshal the image
+	jsonData, err := json.Marshal(img)
+	if err != nil {
+		return err
+	}
+	if err := ioutil.WriteFile(jsonPath(root), jsonData, 0600); err != nil {
+		return err
 	}
 
 	return StoreSize(img, root)
@@ -115,7 +115,7 @@ func StoreImage(img *Image, jsonData []byte, layerData archive.Archive, root str
 func StoreSize(img *Image, root string) error {
 	layer := layerPath(root)
 
-	var totalSize int64 = 0
+	var totalSize int64
 	filepath.Walk(layer, func(path string, fileInfo os.FileInfo, err error) error {
 		totalSize += fileInfo.Size()
 		return nil
@@ -163,21 +163,21 @@ func MountAUFS(ro []string, rw string, target string) error {
 }
 
 // TarLayer returns a tar archive of the image's filesystem layer.
-func (image *Image) TarLayer(compression archive.Compression) (archive.Archive, error) {
-	layerPath, err := image.layer()
+func (img *Image) TarLayer(compression archive.Compression) (archive.Archive, error) {
+	layerPath, err := img.layer()
 	if err != nil {
 		return nil, err
 	}
 	return archive.Tar(layerPath, compression)
 }
 
-func (image *Image) Mount(root, rw string) error {
+func (img *Image) Mount(root, rw string) error {
 	if mounted, err := Mounted(root); err != nil {
 		return err
 	} else if mounted {
 		return fmt.Errorf("%s is already mounted", root)
 	}
-	layers, err := image.layers()
+	layers, err := img.layers()
 	if err != nil {
 		return err
 	}
@@ -194,8 +194,8 @@ func (image *Image) Mount(root, rw string) error {
 	return nil
 }
 
-func (image *Image) Changes(rw string) ([]Change, error) {
-	layers, err := image.layers()
+func (img *Image) Changes(rw string) ([]Change, error) {
+	layers, err := img.layers()
 	if err != nil {
 		return nil, err
 	}
@@ -241,8 +241,10 @@ func (img *Image) History() ([]*Image, error) {
 // FIXME: @shykes refactor this function with the new error handling
 //        (I'll do it if I have time tonight, I focus on the rest)
 func (img *Image) layers() ([]string, error) {
-	var list []string
-	var e error
+	var (
+		list []string
+		e    error
+	)
 	if err := img.WalkHistory(
 		func(img *Image) (err error) {
 			if layer, err := img.layer(); err != nil {
@@ -262,12 +264,11 @@ func (img *Image) layers() ([]string, error) {
 	}
 
 	// Inject the dockerinit layer (empty place-holder for mount-binding dockerinit)
-	if dockerinitLayer, err := img.getDockerInitLayer(); err != nil {
+	dockerinitLayer, err := img.getDockerInitLayer()
+	if err != nil {
 		return nil, err
-	} else {
-		list = append([]string{dockerinitLayer}, list...)
 	}
-	return list, nil
+	return append([]string{dockerinitLayer}, list...), nil
 }
 
 func (img *Image) WalkHistory(handler func(*Image) error) (err error) {

runtime.go

@@ -1,7 +1,7 @@
 package docker
 
 import (
-	_ "code.google.com/p/gosqlite/sqlite3"
+	_ "code.google.com/p/gosqlite/sqlite3" // registers sqlite
 	"container/list"
 	"database/sql"
 	"fmt"

server.go

@@ -422,9 +422,9 @@ func (srv *Server) ImageHistory(name string) ([]APIHistory, error) {
 
 }
 
-func (srv *Server) ContainerTop(name, ps_args string) (*APITop, error) {
+func (srv *Server) ContainerTop(name, psArgs string) (*APITop, error) {
 	if container := srv.runtime.Get(name); container != nil {
-		output, err := exec.Command("lxc-ps", "--name", container.ID, "--", ps_args).CombinedOutput()
+		output, err := exec.Command("lxc-ps", "--name", container.ID, "--", psArgs).CombinedOutput()
 		if err != nil {
 			return nil, fmt.Errorf("lxc-ps: %s (%s)", err, output)
 		}
@@ -891,12 +891,13 @@ func (srv *Server) pushRepository(r *registry.Registry, out io.Writer, localName
 					out.Write(sf.FormatStatus("", "Image %s already pushed, skipping", elem.ID))
 					continue
 				}
-				if checksum, err := srv.pushImage(r, out, remoteName, elem.ID, ep, repoData.Tokens, sf); err != nil {
+				checksum, err := srv.pushImage(r, out, remoteName, elem.ID, ep, repoData.Tokens, sf)
+				if err != nil {
 					// FIXME: Continue on error?
 					return err
-				} else {
-					elem.Checksum = checksum
 				}
+				elem.Checksum = checksum
+
 				if err := pushTags(); err != nil {
 					return err
 				}
@@ -939,11 +940,12 @@ func (srv *Server) pushImage(r *registry.Registry, out io.Writer, remote, imgID,
 	defer os.RemoveAll(layerData.Name())
 
 	// Send the layer
-	if checksum, err := r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf.FormatProgress("", "Pushing", "%8v/%v (%v)"), sf, false), ep, token, jsonRaw); err != nil {
+	checksum, err = r.PushImageLayerRegistry(imgData.ID, utils.ProgressReader(layerData, int(layerData.Size), out, sf.FormatProgress("", "Pushing", "%8v/%v (%v)"), sf, false), ep, token, jsonRaw)
+	if err != nil {
 		return "", err
-	} else {
-		imgData.Checksum = checksum
 	}
+	imgData.Checksum = checksum
+
 	out.Write(sf.FormatStatus("", ""))
 
 	// Send the checksum

utils/http.go

@@ -81,12 +81,12 @@ func NewHTTPUserAgentDecorator(versions ...VersionInfo) HTTPRequestDecorator {
 	return ret
 }
 
-func (self *HTTPUserAgentDecorator) ChangeRequest(req *http.Request) (newReq *http.Request, err error) {
+func (h *HTTPUserAgentDecorator) ChangeRequest(req *http.Request) (newReq *http.Request, err error) {
 	if req == nil {
 		return req, nil
 	}
 
-	userAgent := appendVersions(req.UserAgent(), self.versions...)
+	userAgent := appendVersions(req.UserAgent(), h.versions...)
 	if len(userAgent) > 0 {
 		req.Header.Set("User-Agent", userAgent)
 	}
@@ -97,11 +97,11 @@ type HTTPMetaHeadersDecorator struct {
 	Headers map[string][]string
 }
 
-func (self *HTTPMetaHeadersDecorator) ChangeRequest(req *http.Request) (newReq *http.Request, err error) {
-	if self.Headers == nil {
+func (h *HTTPMetaHeadersDecorator) ChangeRequest(req *http.Request) (newReq *http.Request, err error) {
+	if h.Headers == nil {
 		return req, nil
 	}
-	for k, v := range self.Headers {
+	for k, v := range h.Headers {
 		req.Header[k] = v
 	}
 	return req, nil
@@ -114,25 +114,25 @@ type HTTPRequestFactory struct {
 }
 
 func NewHTTPRequestFactory(d ...HTTPRequestDecorator) *HTTPRequestFactory {
-	ret := new(HTTPRequestFactory)
-	ret.decorators = d
-	return ret
+	return &HTTPRequestFactory{
+		decorators: d,
+	}
 }
 
 // NewRequest() creates a new *http.Request,
 // applies all decorators in the HTTPRequestFactory on the request,
 // then applies decorators provided by d on the request.
-func (self *HTTPRequestFactory) NewRequest(method, urlStr string, body io.Reader, d ...HTTPRequestDecorator) (*http.Request, error) {
+func (h *HTTPRequestFactory) NewRequest(method, urlStr string, body io.Reader, d ...HTTPRequestDecorator) (*http.Request, error) {
 	req, err := http.NewRequest(method, urlStr, body)
 	if err != nil {
 		return nil, err
 	}
 
 	// By default, a nil factory should work.
-	if self == nil {
+	if h == nil {
 		return req, nil
 	}
-	for _, dec := range self.decorators {
+	for _, dec := range h.decorators {
 		req, err = dec.ChangeRequest(req)
 		if err != nil {
 			return nil, err

utils/utils.go

@@ -1123,7 +1123,7 @@ func (graph *DependencyGraph) GenerateTraversalMap() ([][]string, error) {
 	for len(processed) < len(graph.nodes) {
 		// Use a temporary buffer for processed nodes, otherwise
 		// nodes that depend on each other could end up in the same round.
-		tmp_processed := []*DependencyNode{}
+		tmpProcessed := []*DependencyNode{}
 		for _, node := range graph.nodes {
 			// If the node has more dependencies than what we have cleared,
 			// it won't be valid for this round.
@@ -1137,7 +1137,7 @@ func (graph *DependencyGraph) GenerateTraversalMap() ([][]string, error) {
 			// It's not been processed yet and has 0 deps. Add it!
 			// (this is a shortcut for what we're doing below)
 			if node.Degree() == 0 {
-				tmp_processed = append(tmp_processed, node)
+				tmpProcessed = append(tmpProcessed, node)
 				continue
 			}
 			// If at least one dep hasn't been processed yet, we can't
@@ -1151,17 +1151,17 @@ func (graph *DependencyGraph) GenerateTraversalMap() ([][]string, error) {
 			}
 			// All deps have already been processed. Add it!
 			if ok {
-				tmp_processed = append(tmp_processed, node)
+				tmpProcessed = append(tmpProcessed, node)
 			}
 		}
-		Debugf("Round %d: found %d available nodes", len(result), len(tmp_processed))
+		Debugf("Round %d: found %d available nodes", len(result), len(tmpProcessed))
 		// If no progress has been made this round,
 		// that means we have circular dependencies.
-		if len(tmp_processed) == 0 {
+		if len(tmpProcessed) == 0 {
 			return nil, fmt.Errorf("Could not find a solution to this dependency graph")
 		}
 		round := []string{}
-		for _, nd := range tmp_processed {
+		for _, nd := range tmpProcessed {
 			round = append(round, nd.id)
 			processed[nd] = true
 		}