refactor: replace gperr with standard errors package and simplify string parsing

- Replace gperr.Error return types with standard error across test files
- Replace gperr.New with errors.New in validation and serialization tests
- Update API documentation in README files to use error instead of gperr.Error
- Simplify string parsing using strings.Cut in docker/label.go
- Update benchmarks to use NewTestEntrypoint and remove task package dependency

internal/docker/label.go

@@ -54,7 +54,7 @@ func ParseLabels(labels map[string]string, aliases ...string) (types.LabelMap, e
 				// Move deeper into the nested map
 				m, ok := currentMap[k].(types.LabelMap)
 				if !ok && currentMap[k] != "" {
-					errs.Add(gperr.Errorf("expect mapping, got %T", currentMap[k]).Subject(lbl))
+					errs.AddSubject(fmt.Errorf("expect mapping, got %T", currentMap[k]), lbl)
 					continue
 				} else if !ok {
 					m = make(types.LabelMap)
@@ -83,15 +83,7 @@ func ExpandWildcard(labels map[string]string, aliases ...string) {
 		}
 		// lbl is "proxy.X..." where X is alias or wildcard
 		rest := lbl[len(nsProxyDot):] // "X..." or "X.suffix"
-		dotIdx := strings.IndexByte(rest, '.')
+		alias, suffix, _ := strings.Cut(rest, ".")
-		var alias, suffix string
-		if dotIdx == -1 {
-			alias = rest
-		} else {
-			alias = rest[:dotIdx]
-			suffix = rest[dotIdx+1:]
-		}
-
 		if alias == WildcardAlias {
 			delete(labels, lbl)
 			if suffix == "" || strings.Count(value, "\n") > 1 {
@@ -121,15 +113,10 @@ func ExpandWildcard(labels map[string]string, aliases ...string) {
 			continue
 		}
 		rest := lbl[len(nsProxyDot):]
-		dotIdx := strings.IndexByte(rest, '.')
+		alias, suffix, ok := strings.Cut(rest, ".")
-		if dotIdx == -1 {
+		if !ok || alias == "" || alias[0] == '#' {
 			continue
 		}
-		alias := rest[:dotIdx]
-		if alias[0] == '#' {
-			continue
-		}
-		suffix := rest[dotIdx+1:]
 
 		idx, known := aliasSet[alias]
 		if !known {

internal/entrypoint/entrypoint_benchmark_test.go

@@ -13,11 +13,9 @@ import (
 	"github.com/stretchr/testify/require"
 	"github.com/yusing/godoxy/internal/common"
 	. "github.com/yusing/godoxy/internal/entrypoint"
-	entrypoint "github.com/yusing/godoxy/internal/entrypoint/types"
 	"github.com/yusing/godoxy/internal/route"
 	routeTypes "github.com/yusing/godoxy/internal/route/types"
 	"github.com/yusing/godoxy/internal/types"
-	"github.com/yusing/goutils/task"
 )
 
 type noopResponseWriter struct {
@@ -50,15 +48,13 @@ func (t noopTransport) RoundTrip(req *http.Request) (*http.Response, error) {
 }
 
 func BenchmarkEntrypointReal(b *testing.B) {
-	task := task.GetTestTask(b)
+	ep := NewTestEntrypoint(b, nil)
-	ep := NewEntrypoint(task, nil)
 	req := http.Request{
-		Method: "GET",
+		Method: http.MethodGet,
 		URL:    &url.URL{Path: "/", RawPath: "/"},
 		Host:   "test.domain.tld",
 	}
 	ep.SetFindRouteDomains([]string{})
-	entrypoint.SetCtx(task, ep)
 
 	srv := httptest.NewServer(http.HandlerFunc(func(w http.ResponseWriter, r *http.Request) {
 		w.Header().Set("Content-Length", "1")
@@ -85,7 +81,7 @@ func BenchmarkEntrypointReal(b *testing.B) {
 		Alias:       "test",
 		Scheme:      routeTypes.SchemeHTTP,
 		Host:        host,
-		Port:        route.Port{Proxy: portInt},
+		Port:        route.Port{Listening: 1000, Proxy: portInt},
 		HealthCheck: types.HealthCheckConfig{Disable: true},
 	})
 
@@ -94,7 +90,7 @@ func BenchmarkEntrypointReal(b *testing.B) {
 
 	var w noopResponseWriter
 
-	server, ok := ep.GetServer(common.ProxyHTTPAddr)
+	server, ok := ep.GetServer(":1000")
 	if !ok {
 		b.Fatal("server not found")
 	}
@@ -112,15 +108,13 @@ func BenchmarkEntrypointReal(b *testing.B) {
 }
 
 func BenchmarkEntrypoint(b *testing.B) {
-	task := task.GetTestTask(b)
+	ep := NewTestEntrypoint(b, nil)
-	ep := NewEntrypoint(task, nil)
 	req := http.Request{
-		Method: "GET",
+		Method: http.MethodGet,
 		URL:    &url.URL{Path: "/", RawPath: "/"},
 		Host:   "test.domain.tld",
 	}
 	ep.SetFindRouteDomains([]string{})
-	entrypoint.SetCtx(task, ep)
 
 	r, err := route.NewStartedTestRoute(b, &route.Route{
 		Alias:  "test",

internal/idlewatcher/provider/README.md

@@ -36,7 +36,7 @@ type Provider interface {
 
     // Status and monitoring
     ContainerStatus(ctx context.Context) (ContainerStatus, error)
-    Watch(ctx context.Context) (eventCh <-chan events.Event, errCh <-chan gperr.Error)
+    Watch(ctx context.Context) (eventCh <-chan events.Event, errCh <-chan error)
 
     // Cleanup
     Close()

internal/metrics/uptime/README.md

@@ -303,7 +303,7 @@ curl "http://localhost:8080/api/uptime?period=1d&limit=20&offset=0&keyword=docke
 
 ```javascript
 const ws = new WebSocket(
-  "ws://localhost:8080/api/uptime?period=1m&interval=5s"
+  "ws://localhost:8080/api/uptime?period=1m&interval=5s",
 );
 
 ws.onmessage = (event) => {

internal/serialization/gin_binding_test.go

@@ -2,11 +2,12 @@ package serialization_test
 
 import (
 	"bytes"
+	"errors"
+	"net/http"
 	"net/http/httptest"
 	"testing"
 
 	"github.com/yusing/godoxy/internal/serialization"
-	gperr "github.com/yusing/goutils/errs"
 )
 
 type TestStruct struct {
@@ -14,18 +15,17 @@ type TestStruct struct {
 	Value2 int    `json:"value2"`
 }
 
-func (t *TestStruct) Validate() gperr.Error {
+func (t *TestStruct) Validate() error {
 	if t.Value == "" {
-		return gperr.New("value is required")
+		return errors.New("value is required")
 	}
 	if t.Value2 != 0 && (t.Value2 < 5 || t.Value2 > 10) {
-		return gperr.New("value2 must be between 5 and 10")
+		return errors.New("value2 must be between 5 and 10")
 	}
 	return nil
 }
 
 func TestGinBinding(t *testing.T) {
-
 	tests := []struct {
 		name    string
 		input   string
@@ -40,7 +40,7 @@ func TestGinBinding(t *testing.T) {
 		t.Run(tt.name, func(t *testing.T) {
 			var dst TestStruct
 			body := bytes.NewBufferString(tt.input)
-			req := httptest.NewRequest("POST", "/", body)
+			req := httptest.NewRequest(http.MethodPost, "/", body)
 			err := serialization.GinJSONBinding{}.Bind(req, &dst)
 			if (err != nil) != tt.wantErr {
 				t.Errorf("%s: Bind() error = %v, wantErr %v", tt.name, err, tt.wantErr)

internal/serialization/validation_mismatch_test.go

@@ -1,24 +1,23 @@
 package serialization
 
 import (
+	"errors"
 	"reflect"
 	"testing"
-
-	gperr "github.com/yusing/goutils/errs"
 )
 
 // Test cases for when *T implements CustomValidator but T is passed in
 type CustomValidatingInt int
 
-func (c *CustomValidatingInt) Validate() gperr.Error {
+func (c *CustomValidatingInt) Validate() error {
 	if c == nil {
-		return gperr.New("pointer int cannot be nil")
+		return errors.New("pointer int cannot be nil")
 	}
 	if *c <= 0 {
-		return gperr.New("int must be positive")
+		return errors.New("int must be positive")
 	}
 	if *c > 100 {
-		return gperr.New("int must be <= 100")
+		return errors.New("int must be <= 100")
 	}
 	return nil
 }
@@ -26,12 +25,12 @@ func (c *CustomValidatingInt) Validate() gperr.Error {
 // Test cases for when T implements CustomValidator but *T is passed in
 type CustomValidatingFloat float64
 
-func (c CustomValidatingFloat) Validate() gperr.Error {
+func (c CustomValidatingFloat) Validate() error {
 	if c < 0 {
-		return gperr.New("float must be non-negative")
+		return errors.New("float must be non-negative")
 	}
 	if c > 1000 {
-		return gperr.New("float must be <= 1000")
+		return errors.New("float must be <= 1000")
 	}
 	return nil
 }

internal/serialization/validation_string_ptr_test.go

@@ -1,23 +1,22 @@
 package serialization
 
 import (
+	"errors"
 	"reflect"
 	"testing"
-
-	gperr "github.com/yusing/goutils/errs"
 )
 
 type CustomValidatingPointerString string
 
-func (c *CustomValidatingPointerString) Validate() gperr.Error {
+func (c *CustomValidatingPointerString) Validate() error {
 	if c == nil {
-		return gperr.New("pointer string cannot be nil")
+		return errors.New("pointer string cannot be nil")
 	}
 	if *c == "" {
-		return gperr.New("string cannot be empty")
+		return errors.New("string cannot be empty")
 	}
 	if len(*c) < 2 {
-		return gperr.New("string must be at least 2 characters")
+		return errors.New("string must be at least 2 characters")
 	}
 	return nil
 }

internal/serialization/validation_string_test.go

@@ -1,20 +1,19 @@
 package serialization
 
 import (
+	"errors"
 	"reflect"
 	"testing"
-
-	gperr "github.com/yusing/goutils/errs"
 )
 
 type CustomValidatingString string
 
-func (c CustomValidatingString) Validate() gperr.Error {
+func (c CustomValidatingString) Validate() error {
 	if c == "" {
-		return gperr.New("string cannot be empty")
+		return errors.New("string cannot be empty")
 	}
 	if len(c) < 2 {
-		return gperr.New("string must be at least 2 characters")
+		return errors.New("string must be at least 2 characters")
 	}
 	return nil
 }

internal/serialization/validation_struct_ptr_test.go

@@ -1,25 +1,24 @@
 package serialization
 
 import (
+	"errors"
 	"reflect"
 	"testing"
-
-	gperr "github.com/yusing/goutils/errs"
 )
 
 type CustomValidatingPointerStruct struct {
 	Value string
 }
 
-func (c *CustomValidatingPointerStruct) Validate() gperr.Error {
+func (c *CustomValidatingPointerStruct) Validate() error {
 	if c == nil {
-		return gperr.New("pointer struct cannot be nil")
+		return errors.New("pointer struct cannot be nil")
 	}
 	if c.Value == "" {
-		return gperr.New("value cannot be empty")
+		return errors.New("value cannot be empty")
 	}
 	if len(c.Value) < 3 {
-		return gperr.New("value must be at least 3 characters")
+		return errors.New("value must be at least 3 characters")
 	}
 	return nil
 }

internal/serialization/validation_struct_test.go

@@ -1,22 +1,21 @@
 package serialization
 
 import (
+	"errors"
 	"reflect"
 	"testing"
-
-	gperr "github.com/yusing/goutils/errs"
 )
 
 type CustomValidatingStruct struct {
 	Value string
 }
 
-func (c CustomValidatingStruct) Validate() gperr.Error {
+func (c CustomValidatingStruct) Validate() error {
 	if c.Value == "" {
-		return gperr.New("value cannot be empty")
+		return errors.New("value cannot be empty")
 	}
 	if len(c.Value) < 3 {
-		return gperr.New("value must be at least 3 characters")
+		return errors.New("value must be at least 3 characters")
 	}
 	return nil
 }

internal/watcher/README.md

@@ -40,7 +40,7 @@ Alias to `events.Event` for convenience.
 type Watcher interface {
     // Events returns channels for receiving events and errors.
     // The channels are closed when the context is cancelled.
-    Events(ctx context.Context) (<-chan Event, <-chan gperr.Error)
+    Events(ctx context.Context) (<-chan Event, <-chan error)
 }
 ```