ci: enable golangci-lint

This also removes go vet and gofmt, as those are built into
golangci-lint.

Signed-off-by: Kir Kolyshkin <[email protected]>

Author: kolyshkin

.github/workflows/go.yml

@@ -24,14 +24,24 @@ jobs:
         uses: actions/setup-go@v5
         with:
           go-version: ${{ matrix.go }}
-      - name: Go fmt
-        run: ./scripts/ci-runner.sh go_fmt
       - name: Go build (source)
         run: ./scripts/ci-runner.sh build_source
       - name: Go build (tests)
         run: ./scripts/ci-runner.sh build_tests
-      - name: Go vet
-        run: ./scripts/ci-runner.sh go_vet
+  lint:
+    runs-on: ubuntu-latest
+    steps:
+      - name: Install dependencies
+        run: |
+          sudo apt-get -qq update
+          sudo apt-get -qq install libsystemd-dev
+      - uses: actions/checkout@v5
+      - uses: actions/setup-go@v5
+        with:
+          go-version: stable
+      - uses: golangci/golangci-lint-action@v8
+        with:
+          version: v2.3
 
   all-done:
     needs:

.golangci.yml

@@ -0,0 +1,19 @@
+version: "2"
+
+formatters:
+  enable:
+    - gofumpt
+
+linters:
+  settings:
+    staticcheck:
+      checks:
+        - all
+        - -ST1003 # https://staticcheck.dev/docs/checks/#ST1003 Should not use underscores in Go names.
+        - -ST1005 # https://staticcheck.dev/docs/checks/#ST1005 Error strings should not be capitalized.
+    govet:
+      enable:
+        - nilness
+  exclusions:
+    presets:
+      - std-error-handling