push.yml

name: build

on:
  pull_request:
    types: [opened, synchronize]
  merge_group:
    types: [checks_requested]

jobs:
  tests:
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Unshallow
        run: git fetch --prune --unshallow

      - name: Set up Go
        uses: actions/setup-go@v1
        with:
          go-version: 1.20.x

      - name: Cache packages
        uses: actions/cache@v2
        with:
          path: |
            ~/go/pkg/mod
            ~/.cache/go-build
            /opt/hostedtoolcache/go
            vendor
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-

      - name: Set go env
        run: |
          echo "GOPATH=$(go env GOPATH)" >> $GITHUB_ENV
          echo "$(go env GOPATH)/bin" >> $GITHUB_PATH

      - name: Pull external libraries
        run: make vendor

      - name: Run tests
        run: make test

      - name: Publish test coverage
        uses: codecov/codecov-action@v1

  fmt:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout
        uses: actions/checkout@v2

      - name: Setup Go
        uses: actions/setup-go@v3
        with:
          go-version: 1.20.x

          # No need to download cached dependencies when running gofmt.
          cache: false

      - name: Run gofmt
        run: |
          # -l: list files that were reformatted
          # -w: write back formatted files to disk
          gofmt -l -w ./

      - name: Fail on differences
        run: |
          # Exit with status code 1 if there are differences (i.e. unformatted files)
          git diff --exit-code