diff --git a/adapter/outbound/vless.go b/adapter/outbound/vless.go
index 0712d14..4aa45f8 100644
--- a/adapter/outbound/vless.go
+++ b/adapter/outbound/vless.go
@@ -210,7 +210,8 @@ func NewVless(option VlessOption) (*Vless, error) {
 }
 
 func newVlessPacketConn(c net.Conn, addr net.Addr) *vlessPacketConn {
-	return &vlessPacketConn{Conn: c,
+	return &vlessPacketConn{
+		Conn:  c,
 		rAddr: addr,
 		cache: make([]byte, 0, maxLength+2),
 	}
diff --git a/component/trie/ipcidr_node.go b/component/trie/ipcidr_node.go
index acaf9a8..0ab5f6f 100644
--- a/component/trie/ipcidr_node.go
+++ b/component/trie/ipcidr_node.go
@@ -2,9 +2,7 @@ package trie
 
 import "errors"
 
-var (
-	ErrorOverMaxValue = errors.New("the value don't over max value")
-)
+var ErrorOverMaxValue = errors.New("the value don't over max value")
 
 type IpCidrNode struct {
 	Mark     bool
diff --git a/component/trie/ipcidr_trie.go b/component/trie/ipcidr_trie.go
index 8b931c2..82c603d 100644
--- a/component/trie/ipcidr_trie.go
+++ b/component/trie/ipcidr_trie.go
@@ -1,8 +1,9 @@
 package trie
 
 import (
-	"github.com/Dreamacro/clash/log"
 	"net"
+
+	"github.com/Dreamacro/clash/log"
 )
 
 type IPV6 bool
diff --git a/constant/adapters.go b/constant/adapters.go
index 3b89f6f..5493855 100644
--- a/constant/adapters.go
+++ b/constant/adapters.go
@@ -95,7 +95,6 @@ type ProxyAdapter interface {
 	// DialContext return a C.Conn with protocol which
 	// contains multiplexing-related reuse logic (if any)
 	DialContext(ctx context.Context, metadata *Metadata, opts ...dialer.Option) (Conn, error)
-
 	ListenPacketContext(ctx context.Context, metadata *Metadata, opts ...dialer.Option) (PacketConn, error)
 
 	// Unwrap extracts the proxy from a proxy-group. It returns nil when nothing to extract.
diff --git a/hub/route/provider.go b/hub/route/provider.go
index 459fc91..4eec68d 100644
--- a/hub/route/provider.go
+++ b/hub/route/provider.go
@@ -2,9 +2,10 @@ package route
 
 import (
 	"context"
-	ruleProvider "github.com/Dreamacro/clash/rule/provider"
 	"net/http"
 
+	ruleProvider "github.com/Dreamacro/clash/rule/provider"
+
 	"github.com/Dreamacro/clash/constant/provider"
 	"github.com/Dreamacro/clash/tunnel"
 
diff --git a/rule/process.go b/rule/process.go
index 53bb3e8..8142ef1 100644
--- a/rule/process.go
+++ b/rule/process.go
@@ -15,8 +15,8 @@ import (
 var processCache = cache.NewLRUCache(cache.WithAge(2), cache.WithSize(64))
 
 type Process struct {
-	adapter string
-	process string
+	adapter   string
+	process   string
 	fullMatch bool
 }
 
@@ -70,8 +70,8 @@ func NewProcess(process string, adapter string, fullMatch bool) (*Process, error
 	}
 
 	return &Process{
-		adapter: adapter,
-		process: process,
+		adapter:   adapter,
+		process:   process,
 		fullMatch: fullMatch,
 	}, nil
 }
diff --git a/rule/provider/fetcher.go b/rule/provider/fetcher.go
index dfa4ed0..bf738f6 100644
--- a/rule/provider/fetcher.go
+++ b/rule/provider/fetcher.go
@@ -3,17 +3,18 @@ package provider
 import (
 	"bytes"
 	"crypto/md5"
-	providerType "github.com/Dreamacro/clash/constant/provider"
-	"github.com/Dreamacro/clash/log"
 	"io/ioutil"
 	"os"
 	"path/filepath"
 	"time"
+
+	providerType "github.com/Dreamacro/clash/constant/provider"
+	"github.com/Dreamacro/clash/log"
 )
 
 var (
-	fileMode os.FileMode = 0666
-	dirMode  os.FileMode = 0755
+	fileMode os.FileMode = 0o666
+	dirMode  os.FileMode = 0o755
 )
 
 type parser = func([]byte) (interface{}, error)
diff --git a/rule/provider/parser.go b/rule/provider/parser.go
index 8279fab..5f6f414 100644
--- a/rule/provider/parser.go
+++ b/rule/provider/parser.go
@@ -2,11 +2,12 @@ package provider
 
 import (
 	"fmt"
+	"time"
+
 	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/common/structure"
 	C "github.com/Dreamacro/clash/constant"
 	providerType "github.com/Dreamacro/clash/constant/provider"
-	"time"
 )
 
 type ruleProviderSchema struct {
diff --git a/rule/provider/provider.go b/rule/provider/provider.go
index 1d5f4b5..3ea8dc2 100644
--- a/rule/provider/provider.go
+++ b/rule/provider/provider.go
@@ -3,13 +3,14 @@ package provider
 import (
 	"encoding/json"
 	"errors"
+	"runtime"
+	"strings"
+	"time"
+
 	"github.com/Dreamacro/clash/component/trie"
 	C "github.com/Dreamacro/clash/constant"
 	providerType "github.com/Dreamacro/clash/constant/provider"
 	"gopkg.in/yaml.v2"
-	"runtime"
-	"strings"
-	"time"
 )
 
 type Behavior int
diff --git a/rule/provider_test/provider_test.go b/rule/provider_test/provider_test.go
index 4111109..be287e3 100644
--- a/rule/provider_test/provider_test.go
+++ b/rule/provider_test/provider_test.go
@@ -1,14 +1,15 @@
 package provider_test
 
 import (
+	"net"
+	"testing"
+	"time"
+
 	"github.com/Dreamacro/clash/adapter/provider"
 	"github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/rule"
 	ruleProvider "github.com/Dreamacro/clash/rule/provider"
 	"github.com/stretchr/testify/assert"
-	"net"
-	"testing"
-	"time"
 )
 
 func setup() {
diff --git a/rule/rule_set.go b/rule/rule_set.go
index 7a37a9b..69dd512 100644
--- a/rule/rule_set.go
+++ b/rule/rule_set.go
@@ -2,6 +2,7 @@ package rules
 
 import (
 	"fmt"
+
 	C "github.com/Dreamacro/clash/constant"
 	"github.com/Dreamacro/clash/rule/provider"
 )
@@ -31,6 +32,7 @@ func (rs *RuleSet) Payload() string {
 func (rs *RuleSet) ShouldResolveIP() bool {
 	return rs.getProviders().Behavior() != provider.Domain
 }
+
 func (rs *RuleSet) getProviders() provider.RuleProvider {
 	if rs.ruleProvider == nil {
 		rp := provider.RuleProviders()[rs.ruleProviderName]
diff --git a/tunnel/tunnel.go b/tunnel/tunnel.go
index 0c90184..f69b3ea 100644
--- a/tunnel/tunnel.go
+++ b/tunnel/tunnel.go
@@ -3,12 +3,13 @@ package tunnel
 import (
 	"context"
 	"fmt"
-	ruleProvider "github.com/Dreamacro/clash/rule/provider"
 	"net"
 	"runtime"
 	"sync"
 	"time"
 
+	ruleProvider "github.com/Dreamacro/clash/rule/provider"
+
 	"github.com/Dreamacro/clash/adapter/inbound"
 	"github.com/Dreamacro/clash/component/nat"
 	"github.com/Dreamacro/clash/component/resolver"
diff --git a/tunnel/util.go b/tunnel/util.go
index 4a3418a..6571ea1 100644
--- a/tunnel/util.go
+++ b/tunnel/util.go
@@ -17,4 +17,3 @@ func safeAssertProxyType(adapter C.Proxy, metadata *C.Metadata, proxyType C.Adap
 		return false
 	}
 }
-