add github action for linter

.github/workflows/ci.yml

@@ -0,0 +1,50 @@
+name: CI
+on:
+  merge_group:
+  pull_request:
+jobs:
+  golangci:
+    name: pull-nauti-golang-ci
+    env:
+      GOPATH: ${{ github.workspace }}
+      GO111MODULE: on
+    defaults:
+      run:
+        working-directory: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
+    strategy:
+      max-parallel: 3
+      ## this will contain a matrix of all of the combinations
+      ## we wish to test again:
+      matrix:
+        go-version: [ 1.21.x, 1.22.x ]
+        os: [ ubuntu-latest ]
+    runs-on: ${{ matrix.os }}
+    steps:
+      - name: Install Go
+        uses: actions/setup-go@v5
+        with:
+          go-version: ${{ matrix.go-version }}
+      - name: Checkout code
+        uses: actions/checkout@v4
+        with:
+          fetch-depth: 1
+          path: ${{ env.GOPATH }}/src/github.com/${{ github.repository }}
+      - name: Cache go modules and build cache
+        uses: actions/[email protected]
+        with:
+          # In order:
+          # * Module download cache
+          # * Build cache (Linux)
+          # * Build cache (Mac)
+          # * Build cache (Windows)
+          path: |
+            ${{ env.GOPATH }}/pkg/mod
+            ${{ env.GOPATH }}/pkg/sumdb
+            ~/.cache/go-build
+            ~/Library/Caches/go-build
+          #  %LocalAppData%\go-build
+          key: ${{ matrix.os }}-go-${{ hashFiles('**/go.sum') }}
+          restore-keys: |
+            ${{ matrix.os }}-go-
+      - name: Golang Lint
+        run: make lint

Makefile

@@ -11,7 +11,7 @@ else
 GOBIN=$(shell go env GOBIN)
 endif
 
-lint:
+lint: golangci-lint
 	golangci-lint run -c .golangci.yaml --timeout=10m
 
 ovnmaster:
@@ -55,3 +55,21 @@ images:
 	docker build -f ./build/ep-controller.Dockerfile ./ -t docker.io/airren/ep-controller:latest
 	docker push docker.io/airren/dedinic:v1.13.0-debug
 	docker push docker.io/airren/ep-controller:latest
+
+# find or download golangci-lint
+# download golangci-lint if necessary
+golangci-lint:
+ifeq (, $(shell which golangci-lint))
+	@{ \
+	set -e ;\
+	export GO111MODULE=on; \
+	GOLANG_LINT_TMP_DIR=$$(mktemp -d) ;\
+	cd $$GOLANG_LINT_TMP_DIR ;\
+	go mod init tmp ;\
+	go install github.com/golangci/golangci-lint/cmd/[email protected] ;\
+	rm -rf $$GOLANG_LINT_TMP_DIR ;\
+	}
+GOLANG_LINT=$(shell go env GOPATH)/bin/golangci-lint
+else
+GOLANG_LINT=$(shell which golangci-lint)
+endif