CI: lint action

.github/workflows/lint.yml

@@ -0,0 +1,29 @@
+---
+name: golangci-lint
+on:
+  push:
+    paths:
+      - "go.sum"
+      - "go.mod"
+      - "**.go"
+      - ".github/workflows/lint.yml"
+      - ".golangci.yml"
+  pull_request:
+
+jobs:
+  golangci:
+    name: lint
+    runs-on: ubuntu-latest
+    steps:
+      - name: Checkout repository
+        uses: actions/checkout@v3
+
+      - name: install Go
+        uses: actions/setup-go@v3
+        with:
+          go-version: 1.20.x
+
+      - name: Lint
+        uses: golangci/golangci-lint-action@v3.4.0
+        with:
+          version: v1.54.2

.golangcli.yml

@@ -0,0 +1,68 @@
+---
+run:
+  deadline: 5m
+  skip-files:
+    # Skip autogenerated files.
+    - ^.*\.(pb|y)\.go$
+
+output:
+  sort-results: true
+
+linters:
+  enable:
+    - depguard
+    - durationcheck
+    - errorlint
+    - exportloopref
+    - gofmt
+    - gofumpt
+    - goimports
+    - gosimple
+    - ineffassign
+    - misspell
+    - nolintlint
+    - predeclared
+    - revive
+    - staticcheck
+    - unconvert
+    - unused
+    - wastedassign
+
+issues:
+  max-same-issues: 0
+  exclude-rules:
+    - path: _test.go
+      linters:
+        - errcheck
+        - govet
+        - structcheck
+
+linters-settings:
+  depguard:
+    rules:
+      main:
+        deny:
+          #- pkg: "sync/atomic"
+          #  desc: "Use go.uber.org/atomic instead of sync/atomic"
+          - pkg: "github.com/stretchr/testify/assert"
+            desc: "Use github.com/stretchr/testify/require instead of github.com/stretchr/testify/assert"
+          - pkg: "github.com/go-kit/kit/log"
+            desc: "Use github.com/go-kit/log instead of github.com/go-kit/kit/log"
+          - pkg: "io/ioutil"
+            desc: "Use corresponding 'os' or 'io' functions instead."
+        #- pkg: "regexp"
+        #  desc: "Use github.com/grafana/regexp instead of regexp"
+  errcheck:
+    exclude-functions:
+      # The following 2 methods always return nil as the error
+      - (*github.com/cespare/xxhash/v2.Digest).Write
+      - (*github.com/cespare/xxhash/v2.Digest).WriteString
+      - (*bufio.Writer).WriteRune
+  gofumpt:
+    extra-rules: true
+  revive:
+    rules:
+      # https://github.com/mgechev/revive/blob/master/RULES_DESCRIPTIONS.md#unused-parameter
+      - name: unused-parameter
+        severity: warning
+        disabled: true