ci: updated the latest conf and use supported Go versions

.github/workflows/pr-check.yml

@@ -6,47 +6,60 @@ jobs:
   compatibility-test:
     strategy:
       matrix:
-        go: [ 1.15, 1.22 ]
-        # - "ubuntu-latest" is for Linux with X64 CPU, hosted by GitHub,
-        # fewer CPUs but high speed international network
-        # - "ARM64" is for Linux with ARM64 CPU, hosted by bytedance,
-        # more CPUs but inside CN internet which may download go cache slowly.
-        # GitHub don't have free runner with ARM CPU.
-        os: [ ubuntu-latest, ARM64 ]
+        go: [ 1.18, 1.23 ]
+        os: [ X64, ARM64 ]
     runs-on: ${{ matrix.os }}
     steps:
       - uses: actions/checkout@v4
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}
+          cache: false
       - name: Unit Test
         run: go test -timeout=2m -v -race -covermode=atomic -coverprofile=coverage.out ./...
       - name: Benchmark
         run: go test -bench=. -benchmem -run=none ./...
+
   windows-test:
     runs-on: windows-latest
     steps:
       - uses: actions/checkout@v4
       - name: Set up Go
         uses: actions/setup-go@v5
         with:
-          go-version: 1.22
+          go-version: stable
       - name: Build Test
         run: go vet -v ./...
-  style-test:
+
+  compliant:
     runs-on: ubuntu-latest
     steps:
       - uses: actions/checkout@v4
-      - name: Set up Go
-        uses: actions/setup-go@v5
-        with:
-          go-version: 1.16
+
       - name: Check License Header
         uses: apache/skywalking-eyes/[email protected]
         env:
           GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
-      - name: Lint
-        run: |
-          test -z "$(gofmt -s -l .)"
-          go vet -stdmethods=false $(go list ./...)
+
+      - name: Check Spell
+        uses: crate-ci/[email protected]
+
+  golangci-lint:
+    runs-on: [ self-hosted, X64 ]
+    steps:
+      - uses: actions/checkout@v4
+      - name: Set up Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: stable
+          # for self-hosted, the cache path is shared across projects
+          # and it works well without the cache of github actions
+          # Enable it if we're going to use Github only
+          cache: false
+
+      - name: Golangci Lint
+        # https://golangci-lint.run/
+        uses: golangci/golangci-lint-action@v6
+        with:
+          version: latest

.golangci.yaml

@@ -0,0 +1,32 @@
+output:
+  # Format: colored-line-number|line-number|json|tab|checkstyle|code-climate|junit-xml|github-actions
+  format: colored-line-number
+# All available settings of specific linters.
+# Refer to https://golangci-lint.run/usage/linters
+linters-settings:
+  gofumpt:
+    # Choose whether to use the extra rules.
+    # Default: false
+    extra-rules: true
+  goimports:
+    # Put imports beginning with prefix after 3rd-party packages.
+    # It's a comma-separated list of prefixes.
+    local-prefixes: github.com/cloudwego/kitex
+  govet:
+    # Disable analyzers by name.
+    # Run `go tool vet help` to see all analyzers.
+    disable:
+      - stdmethods
+linters:
+  enable:
+    - gofumpt
+    - goimports
+    - gofmt
+  disable:
+    - errcheck
+    - typecheck
+    - deadcode
+    - varcheck
+    - staticcheck
+issues:
+  exclude-use-default: true

connection_errors.go

@@ -44,7 +44,7 @@ const ErrnoMask = 0xFF
 
 // wrap Errno, implement xerrors.Wrapper
 func Exception(err error, suffix string) error {
-	var no, ok = err.(syscall.Errno)
+	no, ok := err.(syscall.Errno)
 	if !ok {
 		if suffix == "" {
 			return err
@@ -54,9 +54,7 @@ func Exception(err error, suffix string) error {
 	return &exception{no: no, suffix: suffix}
 }
 
-var (
-	_ net.Error = (*exception)(nil)
-)
+var _ net.Error = (*exception)(nil)
 
 type exception struct {
 	no     syscall.Errno
@@ -100,10 +98,7 @@ func (e *exception) Timeout() bool {
 	case ErrDialTimeout, ErrReadTimeout, ErrWriteTimeout:
 		return true
 	}
-	if e.no.Timeout() {
-		return true
-	}
-	return false
+	return e.no.Timeout()
 }
 
 func (e *exception) Temporary() bool {

connection_impl.go

@@ -484,8 +484,8 @@ func (c *connection) flush() error {
 		return nil
 	}
 	// TODO: Let the upper layer pass in whether to use ZeroCopy.
-	var bs = c.outputBuffer.GetBytes(c.outputBarrier.bs)
-	var n, err = sendmsg(c.fd, bs, c.outputBarrier.ivs, false && c.supportZeroCopy)
+	bs := c.outputBuffer.GetBytes(c.outputBarrier.bs)
+	n, err := sendmsg(c.fd, bs, c.outputBarrier.ivs, false && c.supportZeroCopy)
 	if err != nil && err != syscall.EAGAIN {
 		return Exception(err, "when flush")
 	}
@@ -510,10 +510,7 @@ func (c *connection) flush() error {
 
 func (c *connection) waitFlush() (err error) {
 	if c.writeTimeout == 0 {
-		select {
-		case err = <-c.writeTrigger:
-		}
-		return err
+		return <-c.writeTrigger
 	}
 
 	// set write timeout

connection_onevent.go

@@ -94,7 +94,7 @@ func (c *connection) AddCloseCallback(callback CloseCallback) error {
 	if callback == nil {
 		return nil
 	}
-	var cb = &callbackNode{}
+	cb := &callbackNode{}
 	cb.fn = callback
 	if pre := c.closeCallbacks.Load(); pre != nil {
 		cb.pre = pre.(*callbackNode)
@@ -132,7 +132,7 @@ func (c *connection) onPrepare(opts *options) (err error) {
 
 // onConnect is responsible for executing onRequest if there is new data coming after onConnect callback finished.
 func (c *connection) onConnect() {
-	var onConnect, _ = c.onConnectCallback.Load().(OnConnect)
+	onConnect, _ := c.onConnectCallback.Load().(OnConnect)
 	if onConnect == nil {
 		c.changeState(connStateNone, connStateConnected)
 		return
@@ -141,17 +141,17 @@ func (c *connection) onConnect() {
 		// it never happens because onDisconnect will not lock connecting if c.connected == 0
 		return
 	}
-	var onRequest, _ = c.onRequestCallback.Load().(OnRequest)
+	onRequest, _ := c.onRequestCallback.Load().(OnRequest)
 	c.onProcess(onConnect, onRequest)
 }
 
 // when onDisconnect called, c.IsActive() must return false
 func (c *connection) onDisconnect() {
-	var onDisconnect, _ = c.onDisconnectCallback.Load().(OnDisconnect)
+	onDisconnect, _ := c.onDisconnectCallback.Load().(OnDisconnect)
 	if onDisconnect == nil {
 		return
 	}
-	var onConnect, _ = c.onConnectCallback.Load().(OnConnect)
+	onConnect, _ := c.onConnectCallback.Load().(OnConnect)
 	if onConnect == nil {
 		// no need lock if onConnect is nil
 		// it's ok to force set state to disconnected since onConnect is nil
@@ -170,12 +170,11 @@ func (c *connection) onDisconnect() {
 		return
 	}
 	// OnConnect is not finished yet, return and let onConnect helps to call onDisconnect
-	return
 }
 
 // onRequest is responsible for executing the closeCallbacks after the connection has been closed.
 func (c *connection) onRequest() (needTrigger bool) {
-	var onRequest, ok = c.onRequestCallback.Load().(OnRequest)
+	onRequest, ok := c.onRequestCallback.Load().(OnRequest)
 	if !ok {
 		return true
 	}
@@ -270,8 +269,8 @@ func (c *connection) onProcess(onConnect OnConnect, onRequest OnRequest) (proces
 		}
 		// task exits
 		panicked = false
-		return
-	}
+	} // end of task closure func
+
 	// add new task
 	runTask(c.ctx, task)
 	return true
@@ -280,7 +279,7 @@ func (c *connection) onProcess(onConnect OnConnect, onRequest OnRequest) (proces
 // closeCallback .
 // It can be confirmed that closeCallback and onRequest will not be executed concurrently.
 // If onRequest is still running, it will trigger closeCallback on exit.
-func (c *connection) closeCallback(needLock bool, needDetach bool) (err error) {
+func (c *connection) closeCallback(needLock, needDetach bool) (err error) {
 	if needLock && !c.lock(processing) {
 		return nil
 	}
@@ -290,7 +289,7 @@ func (c *connection) closeCallback(needLock bool, needDetach bool) (err error) {
 			logger.Printf("NETPOLL: closeCallback[%v,%v] detach operator failed: %v", needLock, needDetach, err)
 		}
 	}
-	var latest = c.closeCallbacks.Load()
+	latest := c.closeCallbacks.Load()
 	if latest == nil {
 		return nil
 	}

connection_reactor.go

@@ -37,9 +37,9 @@ func (c *connection) onHup(p Poll) error {
 	// It depends on closing by user if OnConnect and OnRequest is nil, otherwise it needs to be released actively.
 	// It can be confirmed that the OnRequest goroutine has been exited before closeCallback executing,
 	// and it is safe to close the buffer at this time.
-	var onConnect = c.onConnectCallback.Load()
-	var onRequest = c.onRequestCallback.Load()
-	var needCloseByUser = onConnect == nil && onRequest == nil
+	onConnect := c.onConnectCallback.Load()
+	onRequest := c.onRequestCallback.Load()
+	needCloseByUser := onConnect == nil && onRequest == nil
 	if !needCloseByUser {
 		// already PollDetach when call OnHup
 		c.closeCallback(true, false)
@@ -69,8 +69,8 @@ func (c *connection) onClose() error {
 
 // closeBuffer recycle input & output LinkBuffer.
 func (c *connection) closeBuffer() {
-	var onConnect, _ = c.onConnectCallback.Load().(OnConnect)
-	var onRequest, _ = c.onRequestCallback.Load().(OnRequest)
+	onConnect, _ := c.onConnectCallback.Load().(OnConnect)
+	onRequest, _ := c.onRequestCallback.Load().(OnRequest)
 	// if client close the connection, we cannot ensure that the poller is not process the buffer,
 	// so we need to check the buffer length, and if it's an "unclean" close operation, let's give up to reuse the buffer
 	if c.inputBuffer.Len() == 0 || onConnect != nil || onRequest != nil {
@@ -108,7 +108,7 @@ func (c *connection) inputAck(n int) (err error) {
 		c.maxSize = mallocMax
 	}
 
-	var needTrigger = true
+	needTrigger := true
 	if length == n { // first start onRequest
 		needTrigger = c.onRequest()
 	}