Fix: retry create TUN on Windows

.github/workflows/linter.yml

@@ -13,15 +13,10 @@ jobs:
 
       - name: Setup Go
         uses: actions/setup-go@v2
-        #with:
-        #  go-version: ${{ steps.version.outputs.go_version }}
         with:
-          go-version: 1.18.x
+          go-version: ${{ steps.version.outputs.go_version }}
 
       - name: golangci-lint
-        #uses: golangci/golangci-lint-action@v3
+        uses: golangci/golangci-lint-action@v3
-        #with:
+        with:
-        #  version: latest
+          version: latest
-        run: |
-          go install github.com/golangci/golangci-lint/cmd/golangci-lint@ec95236
-          golangci-lint run ./...

.github/workflows/release.yml

@@ -11,10 +11,8 @@ jobs:
 
       - name: Setup Go
         uses: actions/setup-go@v2
-        #with:
-        #  go-version: ${{ steps.version.outputs.go_version }}
         with:
-          go-version: 1.18.x
+          go-version: ${{ steps.version.outputs.go_version }}
 
       - name: Check out code into the Go module directory
         uses: actions/checkout@v3

.golangci.yaml

@@ -4,9 +4,7 @@ linters:
     - gofumpt
     - staticcheck
     - govet
-#    - gci
+    - gci
-    - gofmt
-    - goimports
 
 linters-settings:
   gci:

listener/tun/device/tun/tun_wireguard.go

@@ -5,6 +5,7 @@ package tun
 import (
 	"fmt"
 	"runtime"
+	"strings"
 
 	"github.com/Dreamacro/clash/common/pool"
 	"github.com/Dreamacro/clash/listener/tun/device"
@@ -50,9 +51,18 @@ func Open(name string, mtu uint32) (_ device.Device, err error) {
 	}
 
 	nt, err := tun.CreateTUN(t.name, forcedMTU) // forcedMTU do not work on wintun, need to be setting by other way
+
+	// retry if abnormal exit on Windows at last time
+	if err != nil && runtime.GOOS == "windows" &&
+		strings.HasSuffix(err.Error(), "file already exists.") {
+
+		nt, err = tun.CreateTUN(t.name, forcedMTU)
+	}
+
 	if err != nil {
 		return nil, fmt.Errorf("create tun: %w", err)
 	}
+
 	t.nt = nt.(*tun.NativeTun)
 
 	tunMTU, err := nt.MTU()