checker.yaml

name: Go CI

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]

concurrency:
  group: go-ci-${{ github.ref }}
  cancel-in-progress: true

jobs:
  lint:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version: "1.26.x"
          cache: true

      - name: Run golangci-lint
        uses: golangci/golangci-lint-action@v6
        with:
          # Upgraded version to support Go 1.25+ syntax parsing
          version: v1.64.6
          args: --timeout=5m

  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v4

      - uses: actions/setup-go@v5
        with:
          go-version: "1.26.x"
          # Relying on setup-go's built-in cache handling is cleaner than actions/cache@v4
          cache: true

      - name: Install dependencies
        run: go mod download

      - name: Check formatting
        # If running locally, make sure you've executed `gofmt -w .`
        run: xargs -r gofmt -d < <(git ls-files '*.go')

      # Cleaned up the diff check to ensure it doesn't flag untracked files weirdly
      - name: Verify module tidiness
        run: |
          go mod tidy
          git diff --exit-code go.mod go.sum

      - name: Build
        run: go build -v ./...

      - name: Test with Coverage
        run: go test -v -race -covermode=atomic -coverprofile=coverage.out ./...

      - name: Upload coverage
        uses: actions/upload-artifact@v4
        with:
          name: coverage
          path: coverage.out