lint fixes

Signed-off-by: Vasiliy Tolstov <v.tolstov@unistack.org>

client/client.go

@@ -11,8 +11,21 @@ import (
 
 var (
 	// DefaultClient is the global default client
-	DefaultClient      Client = NewClient()
-	DefaultContentType        = "application/json"
+	DefaultClient Client = NewClient()
+	// DefaultContentType is the default content-type if not specified
+	DefaultContentType = "application/json"
+	// DefaultBackoff is the default backoff function for retries
+	DefaultBackoff = exponentialBackoff
+	// DefaultRetry is the default check-for-retry function for retries
+	DefaultRetry = RetryNever
+	// DefaultRetries is the default number of times a request is tried
+	DefaultRetries = 0
+	// DefaultRequestTimeout is the default request timeout
+	DefaultRequestTimeout = time.Second * 5
+	// DefaultPoolSize sets the connection pool size
+	DefaultPoolSize = 100
+	// DefaultPoolTTL sets the connection pool ttl
+	DefaultPoolTTL = time.Minute
 )
 
 // Client is the interface used to make requests to services.
@@ -20,10 +33,10 @@ var (
 // It also supports bidirectional streaming of requests.
 type Client interface {
 	Name() string
-	Init(...Option) error
+	Init(opts ...Option) error
 	Options() Options
 	NewMessage(topic string, msg interface{}, opts ...MessageOption) Message
-	NewRequest(service, endpoint string, req interface{}, reqOpts ...RequestOption) Request
+	NewRequest(service string, endpoint string, req interface{}, opts ...RequestOption) Request
 	Call(ctx context.Context, req Request, rsp interface{}, opts ...CallOption) error
 	Stream(ctx context.Context, req Request, opts ...CallOption) (Stream, error)
 	Publish(ctx context.Context, msg Message, opts ...PublishOption) error
@@ -74,9 +87,9 @@ type Stream interface {
 	// The response read
 	Response() Response
 	// Send will encode and send a request
-	Send(interface{}) error
+	Send(msg interface{}) error
 	// Recv will decode and read a response
-	Recv(interface{}) error
+	Recv(msg interface{}) error
 	// Error returns the stream error
 	Error() error
 	// Close closes the stream
@@ -97,18 +110,3 @@ type MessageOption func(*MessageOptions)
 
 // RequestOption used by NewRequest
 type RequestOption func(*RequestOptions)
-
-var (
-	// DefaultBackoff is the default backoff function for retries
-	DefaultBackoff = exponentialBackoff
-	// DefaultRetry is the default check-for-retry function for retries
-	DefaultRetry = RetryNever
-	// DefaultRetries is the default number of times a request is tried
-	DefaultRetries = 0
-	// DefaultRequestTimeout is the default request timeout
-	DefaultRequestTimeout = time.Second * 5
-	// DefaultPoolSize sets the connection pool size
-	DefaultPoolSize = 100
-	// DefaultPoolTTL sets the connection pool ttl
-	DefaultPoolTTL = time.Minute
-)

client/options.go

@@ -64,13 +64,13 @@ type CallOptions struct {
 	Address []string
 	// Backoff func
 	Backoff BackoffFunc
-	// Transport Dial Timeout
+	// DialTimeout is the transport Dial Timeout
 	DialTimeout time.Duration
-	// Number of Call attempts
+	// Retries is the number of Call attempts
 	Retries int
-	// Check if retriable func
+	// Retry func to be used for retries
 	Retry RetryFunc
-	// Request/Response timeout
+	// RequestTimeout specifies request timeout
 	RequestTimeout time.Duration
 	// Router to use for this call
 	Router router.Router
@@ -78,15 +78,15 @@ type CallOptions struct {
 	Selector selector.Selector
 	// SelectOptions to use when selecting a route
 	SelectOptions []selector.SelectOption
-	// Stream timeout for the stream
+	// StreamTimeout timeout for the stream
 	StreamTimeout time.Duration
-	// Use the auth token as the authorization header
+	// AuthToken specifies the auth token as the authorization header
 	AuthToken bool
 	// Network to lookup the route within
 	Network string
-	// Middleware for low level call func
+	// CallWrappers is for low level call func
 	CallWrappers []CallWrapper
-	// Context is uded for non default options
+	// Context is used for non default options
 	Context context.Context
 }
 
@@ -110,8 +110,7 @@ func NewPublishOptions(opts ...PublishOption) PublishOptions {
 type PublishOptions struct {
 	// Exchange is the routing exchange for the message
 	Exchange string
-	// Other options for implementations of the interface
-	// can be stored in a context
+	// Context holds additional options
 	Context context.Context
 }
 
@@ -140,10 +139,11 @@ func NewRequestOptions(opts ...RequestOption) RequestOptions {
 
 // RequestOptions holds client request options
 type RequestOptions struct {
+	// ContentType specify content-type of request
 	ContentType string
-	Stream      bool
-	// Other options for implementations of the interface
-	// can be stored in a context
+	// Stream says that request is the streaming
+	Stream bool
+	// Context can hold other options
 	Context context.Context
 }
 
@@ -212,7 +212,7 @@ func Codec(contentType string, c codec.Codec) Option {
 	}
 }
 
-// Default content type of the client
+// ContentType used by default if not specified
 func ContentType(ct string) Option {
 	return func(o *Options) {
 		o.ContentType = ct
@@ -270,22 +270,21 @@ func Selector(s selector.Selector) Option {
 	}
 }
 
-// Adds a Wrapper to a list of options passed into the client
+// Wrap adds a wrapper to the list of options passed into the client
 func Wrap(w Wrapper) Option {
 	return func(o *Options) {
 		o.Wrappers = append(o.Wrappers, w)
 	}
 }
 
-// Adds a Wrapper to the list of CallFunc wrappers
+// WrapCall adds a wrapper to the list of CallFunc wrappers
 func WrapCall(cw ...CallWrapper) Option {
 	return func(o *Options) {
 		o.CallOptions.CallWrappers = append(o.CallOptions.CallWrappers, cw...)
 	}
 }
 
-// Backoff is used to set the backoff function used
-// when retrying Calls
+// Backoff is used to set the backoff function used when retrying Calls
 func Backoff(fn BackoffFunc) Option {
 	return func(o *Options) {
 		o.CallOptions.Backoff = fn
@@ -307,7 +306,6 @@ func Lookup(l LookupFunc) Option {
 }
 
 // Retries sets the retry count when making the request.
-// Should this be a Call Option?
 func Retries(i int) Option {
 	return func(o *Options) {
 		o.CallOptions.Retries = i
@@ -322,7 +320,6 @@ func Retry(fn RetryFunc) Option {
 }
 
 // RequestTimeout is the request timeout.
-// Should this be a Call Option?
 func RequestTimeout(d time.Duration) Option {
 	return func(o *Options) {
 		o.CallOptions.RequestTimeout = d
@@ -463,8 +460,6 @@ func WithMessageContentType(ct string) MessageOption {
 	}
 }
 
-// Request Options
-
 // WithContentType specifies request content type
 func WithContentType(ct string) RequestOption {
 	return func(o *RequestOptions) {

codec/codec.go

@@ -30,7 +30,7 @@ var (
 	DefaultCodec Codec = NewCodec()
 )
 
-// MessageType
+// MessageType specifies message type for codec
 type MessageType int
 
 // Codec encodes/decodes various types of messages used within micro.

config/default.go

@@ -255,6 +255,7 @@ func (c *defaultConfig) Name() string {
 	return c.opts.Name
 }
 
+// NewConfig returns new default config source
 func NewConfig(opts ...Option) Config {
 	options := NewOptions(opts...)
 	if len(options.StructTag) == 0 {

config/options.go

@@ -9,6 +9,7 @@ import (
 	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// Options hold the config options
 type Options struct {
 	Name       string
 	AllowFail  bool
@@ -32,8 +33,10 @@ type Options struct {
 	Context context.Context
 }
 
+// Option function signature
 type Option func(o *Options)
 
+// NewOptions new options struct with filed values
 func NewOptions(opts ...Option) Options {
 	options := Options{
 		Logger:  logger.DefaultLogger,
@@ -48,36 +51,42 @@ func NewOptions(opts ...Option) Options {
 	return options
 }
 
+// AllowFail allows config source to fail
 func AllowFail(b bool) Option {
 	return func(o *Options) {
 		o.AllowFail = b
 	}
 }
 
+// BeforeLoad run funcs before config load
 func BeforeLoad(fn ...func(context.Context, Config) error) Option {
 	return func(o *Options) {
 		o.BeforeLoad = fn
 	}
 }
 
+// AfterLoad run funcs after config load
 func AfterLoad(fn ...func(context.Context, Config) error) Option {
 	return func(o *Options) {
 		o.AfterLoad = fn
 	}
 }
 
+// BeforeSave run funcs before save
 func BeforeSave(fn ...func(context.Context, Config) error) Option {
 	return func(o *Options) {
 		o.BeforeSave = fn
 	}
 }
 
+// AfterSave run fncs after save
 func AfterSave(fn ...func(context.Context, Config) error) Option {
 	return func(o *Options) {
 		o.AfterSave = fn
 	}
 }
 
+// Context pass context
 func Context(ctx context.Context) Option {
 	return func(o *Options) {
 		o.Context = ctx
@@ -91,6 +100,7 @@ func Codec(c codec.Codec) Option {
 	}
 }
 
+// Logger sets the logger
 func Logger(l logger.Logger) Option {
 	return func(o *Options) {
 		o.Logger = l

errors/errors.go

@@ -9,33 +9,33 @@ import (
 )
 
 var (
-	// ErrBadRequest
+	// ErrBadRequest returns then requests contains invalid data
 	ErrBadRequest = &Error{Code: 400}
-	// ErrUnauthorized
+	// ErrUnauthorized returns then user have unauthorized call
 	ErrUnauthorized = &Error{Code: 401}
-	// ErrForbidden
+	// ErrForbidden returns then user have not access the resource
 	ErrForbidden = &Error{Code: 403}
-	// ErrNotFound
+	// ErrNotFound returns then user specify invalid endpoint
 	ErrNotFound = &Error{Code: 404}
-	// ErrMethodNotAllowed
+	// ErrMethodNotAllowed returns then user try to get invalid method
 	ErrMethodNotAllowed = &Error{Code: 405}
-	// ErrTimeout
+	// ErrTimeout returns then timeout exceeded
 	ErrTimeout = &Error{Code: 408}
-	// ErrConflict
+	// ErrConflict returns then request create duplicate resource
 	ErrConflict = &Error{Code: 409}
-	// ErrInternalServerError
+	// ErrInternalServerError returns then server cant process request because of internal error
 	ErrInternalServerError = &Error{Code: 500}
-	// ErNotImplemented
+	// ErNotImplemented returns then server does not have desired endpoint method
 	ErNotImplemented = &Error{Code: 501}
-	// ErrBadGateway
+	// ErrBadGateway returns then server cant process request
 	ErrBadGateway = &Error{Code: 502}
-	// ErrServiceUnavailable
+	// ErrServiceUnavailable returns then service unavailable
 	ErrServiceUnavailable = &Error{Code: 503}
-	// ErrGatewayTimeout
+	// ErrGatewayTimeout returns then server have long time to process request
 	ErrGatewayTimeout = &Error{Code: 504}
 )
 
-// Error tpye
+// Error type
 type Error struct {
 	Id     string
 	Code   int32
@@ -43,6 +43,7 @@ type Error struct {
 	Status string
 }
 
+// Error satisfies error interface
 func (e *Error) Error() string {
 	b, _ := json.Marshal(e)
 	return string(b)

logger/logger.go

@@ -6,7 +6,7 @@ import "context"
 var (
 	// DefaultLogger variable
 	DefaultLogger Logger = NewLogger()
-	// DefaultLogger level
+	// DefaultLevel used by logger
 	DefaultLevel Level = InfoLevel
 )
 

metadata/metadata.go

@@ -25,6 +25,7 @@ var (
 	defaultMetadataSize = 2
 )
 
+// Iterator used to iterate over metadata with order
 type Iterator struct {
 	cur  int
 	cnt  int
@@ -32,6 +33,7 @@ type Iterator struct {
 	md   Metadata
 }
 
+// Next advance iterator to next element
 func (iter *Iterator) Next(k, v *string) bool {
 	if iter.cur+1 > iter.cnt {
 		return false
@@ -43,7 +45,7 @@ func (iter *Iterator) Next(k, v *string) bool {
 	return true
 }
 
-// Iterate returns run user func with map key, val sorted by key
+// Iterator returns the itarator for metadata in sorted order
 func (md Metadata) Iterator() *Iterator {
 	iter := &Iterator{md: md, cnt: len(md)}
 	iter.keys = make([]string, 0, iter.cnt)

network/transport/memory.go

@@ -251,6 +251,7 @@ func (m *memoryTransport) Name() string {
 	return m.opts.Name
 }
 
+// NewTransport returns new memory transport with options
 func NewTransport(opts ...Option) Transport {
 	options := NewOptions(opts...)
 

register/options.go

@@ -10,6 +10,7 @@ import (
 	"github.com/unistack-org/micro/v3/tracer"
 )
 
+// Options holds options for register
 type Options struct {
 	Name      string
 	Addrs     []string

resolver/dns/dns.go

@@ -18,6 +18,7 @@ type Resolver struct {
 	sync.RWMutex
 }
 
+// Resolve tries to resolve endpoint address
 func (r *Resolver) Resolve(name string) ([]*resolver.Record, error) {
 	host, port, err := net.SplitHostPort(name)
 	if err != nil {

resolver/dnssrv/dnssrv.go

@@ -9,7 +9,9 @@ import (
 )
 
 // Resolver is a DNS network resolve
-type Resolver struct{}
+type Resolver struct {
+	Address string
+}
 
 // Resolve assumes ID is a domain name e.g micro.mu
 func (r *Resolver) Resolve(name string) ([]*resolver.Record, error) {

server/server.go

@@ -50,13 +50,13 @@ type Server interface {
 	// Retrieve the options
 	Options() Options
 	// Register a handler
-	Handle(Handler) error
+	Handle(h Handler) error
 	// Create a new handler
-	NewHandler(interface{}, ...HandlerOption) Handler
+	NewHandler(h interface{}, opts ...HandlerOption) Handler
 	// Create a new subscriber
-	NewSubscriber(string, interface{}, ...SubscriberOption) Subscriber
+	NewSubscriber(topic string, h interface{}, opts ...SubscriberOption) Subscriber
 	// Register a subscriber
-	Subscribe(Subscriber) error
+	Subscribe(s Subscriber) error
 	// Start the server
 	Start() error
 	// Stop the server
@@ -68,9 +68,9 @@ type Server interface {
 // Router handle serving messages
 type Router interface {
 	// ProcessMessage processes a message
-	ProcessMessage(context.Context, Message) error
+	ProcessMessage(ctx context.Context, msg Message) error
 	// ServeRequest processes a request to completion
-	ServeRequest(context.Context, Request, Response) error
+	ServeRequest(ctx context.Context, req Request, rsp Response) error
 }
 
 // Message is an async message interface
@@ -116,7 +116,7 @@ type Response interface {
 	// Encoded writer
 	Codec() codec.Codec
 	// Write the header
-	WriteHeader(metadata.Metadata)
+	WriteHeader(md metadata.Metadata)
 	// write a response directly to the client
 	Write([]byte) error
 }
@@ -128,8 +128,8 @@ type Response interface {
 type Stream interface {
 	Context() context.Context
 	Request() Request
-	Send(interface{}) error
-	Recv(interface{}) error
+	Send(msg interface{}) error
+	Recv(msg interface{}) error
 	Error() error
 	Close() error
 }

store/options.go

@@ -14,6 +14,7 @@ import (
 
 // Options contains configuration for the Store
 type Options struct {
+	// Name specifies store name
 	Name string
 	// Nodes contains the addresses or other connection information of the backing storage.
 	// For example, an etcd implementation would contain the nodes of the cluster.
@@ -33,8 +34,7 @@ type Options struct {
 	Tracer tracer.Tracer
 	// TLSConfig specifies tls.Config for secure
 	TLSConfig *tls.Config
-
-	// Context should contain all implementation specific options, using context.WithValue.
+	// Context should contain all implementation specific options
 	Context context.Context
 }
 
@@ -292,13 +292,16 @@ func ListOffset(o uint) ListOption {
 	}
 }
 
+// ExistsOption specifies Exists call options
 type ExistsOption func(*ExistsOptions)
 
+// ExistsOptions holds options for Exists method
 type ExistsOptions struct {
 	Namespace string
 	Context   context.Context
 }
 
+// NewExistsOptions helper for Exists method
 func NewExistsOptions(opts ...ExistsOption) ExistsOptions {
 	options := ExistsOptions{
 		Context: context.Background(),

sync/memory.go

@@ -186,8 +186,9 @@ func (m *memorySync) String() string {
 	return "memory"
 }
 
+// NewSync return new memory sync
 func NewSync(opts ...Option) Sync {
-	var options Options
+	options := Options{}
 	for _, o := range opts {
 		o(&options)
 	}

tracer/memory.go

@@ -89,6 +89,7 @@ func (t *tracer) Name() string {
 	return t.opts.Name
 }
 
+// NewTracer returns new memory tracer
 func NewTracer(opts ...Option) Tracer {
 	return &tracer{
 		opts: NewOptions(opts...),

util/reflect/reflect.go

@@ -12,9 +12,14 @@ import (
 )
 
 var (
-	bracketSplitter  = regexp.MustCompile(`\[|\]`)
+	// ErrInvalidStruct specifies invalid struct error
 	ErrInvalidStruct = errors.New("invalid struct specified")
-	ErrInvalidParam  = errors.New("invalid url query param provided")
+	// ErrInvalidParam specifies invalid url query params
+	ErrInvalidParam = errors.New("invalid url query param provided")
+)
+
+var (
+	bracketSplitter = regexp.MustCompile(`\[|\]`)
 )
 
 func fieldName(name string) string {
@@ -38,6 +43,7 @@ func fieldName(name string) string {
 	return string(newstr)
 }
 
+// IsEmpty returns true if value empty
 func IsEmpty(v reflect.Value) bool {
 	switch getKind(v) {
 	case reflect.Array, reflect.Map, reflect.Slice, reflect.String:
@@ -63,6 +69,7 @@ func IsEmpty(v reflect.Value) bool {
 	return false
 }
 
+// Zero creates new zero interface
 func Zero(src interface{}) (interface{}, error) {
 	sv := reflect.ValueOf(src)
 
@@ -79,6 +86,7 @@ func Zero(src interface{}) (interface{}, error) {
 	return dst.Interface(), nil
 }
 
+// StructFields returns slice of struct fields
 func StructFields(src interface{}) ([]reflect.StructField, error) {
 	var fields []reflect.StructField
 
@@ -149,6 +157,7 @@ func CopyFrom(a, b interface{}) {
 	}
 }
 
+// URLMap returns map of url query params
 func URLMap(query string) (map[string]interface{}, error) {
 	var (
 		mp interface{} = make(map[string]interface{})
@@ -167,6 +176,7 @@ func URLMap(query string) (map[string]interface{}, error) {
 	return mp.(map[string]interface{}), nil
 }
 
+// FlattenMap expand key.subkey to nested map
 func FlattenMap(a map[string]interface{}) map[string]interface{} {
 	// preprocess map
 	nb := make(map[string]interface{}, len(a))
@@ -197,6 +207,7 @@ func FlattenMap(a map[string]interface{}) map[string]interface{} {
 	return nb
 }
 
+// MergeMap merges maps
 func MergeMap(a interface{}, b map[string]interface{}) error {
 	var err error
 
@@ -354,11 +365,11 @@ func mergeBool(va, vb reflect.Value) error {
 			va.SetBool(true)
 		}
 	case reflect.String:
-		if b, err := strconv.ParseBool(vb.String()); err != nil {
+		b, err := strconv.ParseBool(vb.String())
+		if err != nil {
 			return err
-		} else {
-			va.SetBool(b)
 		}
+		va.SetBool(b)
 	default:
 		return fmt.Errorf("cant merge %v %s with %v %s", va, va.Kind(), vb, vb.Kind())
 	}
@@ -390,11 +401,11 @@ func mergeInt(va, vb reflect.Value) error {
 	case reflect.Float32:
 		va.SetInt(int64(vb.Float()))
 	case reflect.String:
-		if f, err := strconv.ParseInt(vb.String(), 10, va.Type().Bits()); err != nil {
+		f, err := strconv.ParseInt(vb.String(), 10, va.Type().Bits())
+		if err != nil {
 			return err
-		} else {
-			va.SetInt(f)
 		}
+		va.SetInt(f)
 	default:
 		return fmt.Errorf("cant merge %v %s with %v %s", va, va.Kind(), vb, vb.Kind())
 	}
@@ -410,11 +421,11 @@ func mergeUint(va, vb reflect.Value) error {
 	case reflect.Float32:
 		va.SetUint(uint64(vb.Float()))
 	case reflect.String:
-		if f, err := strconv.ParseUint(vb.String(), 10, va.Type().Bits()); err != nil {
+		f, err := strconv.ParseUint(vb.String(), 10, va.Type().Bits())
+		if err != nil {
 			return err
-		} else {
-			va.SetUint(f)
 		}
+		va.SetUint(f)
 	default:
 		return fmt.Errorf("cant merge %v %s with %v %s", va, va.Kind(), vb, vb.Kind())
 	}
@@ -430,11 +441,11 @@ func mergeFloat(va, vb reflect.Value) error {
 	case reflect.Float32:
 		va.Set(vb)
 	case reflect.String:
-		if f, err := strconv.ParseFloat(vb.String(), va.Type().Bits()); err != nil {
+		f, err := strconv.ParseFloat(vb.String(), va.Type().Bits())
+		if err != nil {
 			return err
-		} else {
-			va.SetFloat(f)
 		}
+		va.SetFloat(f)
 	default:
 		return fmt.Errorf("cant merge %v %s with %v %s", va, va.Kind(), vb, vb.Kind())
 	}