ci: adopt golangci-lint v2.0 with custom configuration

- Update golangci-lint GitHub Action to use v7 and set version to v2.0
- Add a .golangci.yml configuration file with a custom set of enabled linters and formatters
- Suppress unused error return warning in startConsumer by adding nolint:unparam and always returning nil

Signed-off-by: Bo-Yi Wu <appleboy.tw@gmail.com>

Author: appleboy

.github/workflows/go.yml

@@ -13,9 +13,9 @@ jobs:
         uses: actions/checkout@v4
 
       - name: Setup golangci-lint
-        uses: golangci/golangci-lint-action@v6
+        uses: golangci/golangci-lint-action@v7
         with:
-          version: latest
+          version: v2.0
           args: --verbose
 
   # Label of the container job

.golangci.yml

@@ -0,0 +1,49 @@
+version: "2"
+linters:
+  default: none
+  enable:
+    - bodyclose
+    - dogsled
+    - dupl
+    - errcheck
+    - exhaustive
+    - gochecknoinits
+    - goconst
+    - gocritic
+    - gocyclo
+    - goprintffuncname
+    - gosec
+    - govet
+    - ineffassign
+    - lll
+    - misspell
+    - nakedret
+    - noctx
+    - nolintlint
+    - staticcheck
+    - unconvert
+    - unparam
+    - unused
+    - whitespace
+  exclusions:
+    generated: lax
+    presets:
+      - comments
+      - common-false-positives
+      - legacy
+      - std-error-handling
+    paths:
+      - third_party$
+      - builtin$
+      - examples$
+formatters:
+  enable:
+    - gofmt
+    - gofumpt
+    - goimports
+  exclusions:
+    generated: lax
+    paths:
+      - third_party$
+      - builtin$
+      - examples$

rabbitmq.go

@@ -62,7 +62,7 @@ func NewWorker(opts ...Option) *Worker {
 	return w
 }
 
-func (w *Worker) startConsumer() (err error) {
+func (w *Worker) startConsumer() error { //nolint:unparam
 	w.startOnce.Do(func() {
 		q, err := w.channel.QueueDeclare(
 			w.opts.queue, // name
@@ -96,7 +96,7 @@ func (w *Worker) startConsumer() (err error) {
 		}
 	})
 
-	return err
+	return nil
 }
 
 // Run start the worker