ci.yml

name: ci

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

permissions:
  contents: read

jobs:
  test:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v7

      - uses: actions/setup-go@v6
        with:
          go-version: '1.25'
          cache: true

      - name: gofmt (formatting gate)
        run: |
          unformatted=$(gofmt -l .)
          if [ -n "$unformatted" ]; then
            echo "These files are not gofmt-clean:"; echo "$unformatted"
            echo "Run: gofmt -w ."; exit 1
          fi

      - name: go vet
        run: go vet ./...

      - name: Cross-compile for prod target (linux/arm64)
        # Production runs on a GH200 (linux/arm64). Pure-Go + CGO_ENABLED=0
        # means this is a clean cross-compile on the amd64 runner — no QEMU,
        # no self-hosted runner. Catches a compile break on the prod arch
        # that the host-arch test build would miss.
        run: CGO_ENABLED=0 GOOS=linux GOARCH=arm64 go build ./cmd/cosift

      - name: Run tests with coverage
        # cosift's internal/crawler hits ~25s; allow 5m total headroom.
        run: go test -race -coverprofile=coverage.out -covermode=atomic -timeout 5m ./...

      - name: Upload coverage to Codecov
        uses: codecov/codecov-action@v7
        with:
          files: ./coverage.out
          flags: unittests
          name: cosift
          fail_ci_if_error: false
        # No token needed — Codecov GitHub App is installed on the org.

      - name: Coverage summary
        run: go tool cover -func=coverage.out | tail -20

      - uses: actions/upload-artifact@v7
        with:
          name: coverage-cosift
          path: coverage.out
          retention-days: 30