Update golangci-lint workflow to Go 1.24

.github/workflows/golangci-lint.yml

@@ -14,13 +14,13 @@ jobs:
       - uses: actions/checkout@v3
       - uses: actions/setup-go@v3
         with:
-          go-version: "1.19"
+          go-version: "1.24"
       - name: Vendor modules for later steps.
         run: |
           go mod vendor
-      - uses: golangci/golangci-lint-action@3a919529898de77ec3da873e3063ca4b10e7f5cc # v3.7.0
+      - uses: golangci/golangci-lint-action@v9.2.0
         with:
-          # Required: the version of golangci-lint is required and must be specified without patch version: we always use the latest patch version.
-          version: v1.55
+          # The version of golangci-lint to use (full version with patch number)
+          version: v2.8.0
           args:
             -v

.golangci.yml

@@ -2,47 +2,61 @@
 # The Go Language Working Group is currently working on a finalized version
 # of this configuration file to share with all Hubbers.
 
-linters:
-    enable:
-      - depguard
-      - errcheck
-      - exportloopref
-      - gocritic
-      - gocyclo
-      - gofmt
-      - goimports
-      - gosec
-      - gosimple
-      - govet
-      - ineffassign
-      - misspell
-      - nakedret
-      - prealloc
-      - revive
-      - staticcheck
-      - typecheck
-      - unconvert
-      - unused
-    disable:
-      - gochecknoglobals # we allow global variables in packages
-      - gochecknoinits   # we allow inits in packages
-      - goconst          # we allow repeated values to go un-const'd
-      - lll              # we allow any line length
-      - unparam          # we allow function calls to name unused parameters
-      - maligned         # clear structs are more important than saving a few bytes.
+version: "2"
 
-linters-settings:
-  depguard:
-    rules:
-      main:
-        files:
-          - "$all"
-          - "!$test"
-        deny:
-          - pkg: io/ioutil
-            desc: The io/ioutil package has been deprecated, see https://go.dev/doc/go1.16#ioutil
+linters:
+  enable:
+    - copyloopvar
+    - depguard
+    - errcheck
+    - gocritic
+    - gocyclo
+    - gosec
+    - govet
+    - ineffassign
+    - misspell
+    - nakedret
+    - prealloc
+    - revive
+    - staticcheck
+    - unconvert
+    - unused
+  disable:
+    - gochecknoglobals # we allow global variables in packages
+    - gochecknoinits   # we allow inits in packages
+    - goconst          # we allow repeated values to go un-const'd
+    - lll              # we allow any line length
+    - unparam          # we allow function calls to name unused parameters
+  settings:
+    depguard:
+      rules:
+        main:
+          files:
+            - $all
+            - '!$test'
+          deny:
+            - pkg: io/ioutil
+              desc: The io/ioutil package has been deprecated, see https://go.dev/doc/go1.16#ioutil
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+      - internal/deprecated$
 
-run:
-  timeout: 5m
-  skip-dirs:
-      - internal/deprecated
+formatters:
+  enable:
+    - gofmt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

go.mod

@@ -2,6 +2,8 @@ module github.com/github/go-pipe
 
 go 1.24.0
 
+toolchain go1.24.11
+
 require (
 	github.com/stretchr/testify v1.11.1
 	go.uber.org/goleak v1.2.1

internal/ptree/ptree_test.go

@@ -77,7 +77,7 @@ func TestWalkChildren(t *testing.T) {
 	require.Equal(t, "ready", string(ready[:]))
 
 	var numChildren int
-	ptree.WalkChildren(cmd.Process.Pid, func(pid int) {
+	ptree.WalkChildren(cmd.Process.Pid, func(_ int) {
 		numChildren++
 	})
 	assert.Equal(t, depth, numChildren)

pipe/command.go

@@ -201,7 +201,7 @@ func (s *commandStage) filterCmdError(err error) error {
 		// doesn't do anything on Windows, where the `Signaled()`
 		// method isn't implemented (it is hardcoded to return
 		// `false`).
-		ps, ok := eErr.ProcessState.Sys().(syscall.WaitStatus)
+		ps, ok := eErr.Sys().(syscall.WaitStatus)
 		if ok && ps.Signaled() &&
 			(ps.Signal() == syscall.SIGTERM || ps.Signal() == syscall.SIGKILL) {
 			return ctxErr

pipe/command_test.go

@@ -76,7 +76,6 @@ func TestCopyEnvWithOverride(t *testing.T) {
 	}
 
 	for _, ex := range examples {
-		ex := ex
 		t.Run(ex.label, func(t *testing.T) {
 			assert.ElementsMatch(t, ex.expectedResult,
 				copyEnvWithOverrides(ex.env, ex.overrides))

pipe/pipeline.go

@@ -28,6 +28,7 @@ type Env struct {
 // and is not reported to the caller.
 //
 //revive:disable:error-naming
+//nolint:staticcheck // ST1012: FinishEarly is the intentional name for this sentinel error
 var FinishEarly = errors.New("finish stage early")
 
 //revive:enable:error-naming
@@ -67,7 +68,7 @@ type Pipeline struct {
 	panicHandler StagePanicHandler
 }
 
-var emptyEventHandler = func(e *Event) {}
+var emptyEventHandler = func(_ *Event) {}
 
 type nopWriteCloser struct {
 	io.Writer

pipe/pipeline_test.go

@@ -473,7 +473,7 @@ func TestFunction(t *testing.T) {
 			pipe.Print("hello world"),
 			pipe.Function(
 				"farewell",
-				func(_ context.Context, _ pipe.Env, stdin io.Reader, stdout io.Writer) error {
+				func(_ context.Context, _ pipe.Env, _ io.Reader, _ io.Writer) error {
 					panic("this is a panic")
 				},
 			),
@@ -886,7 +886,6 @@ func TestErrors(t *testing.T) {
 			expectedErr: err1,
 		},
 	} {
-		tc := tc
 		t.Run(tc.name, func(t *testing.T) {
 			t.Parallel()