name: Build
on:
  pull_request:
    branches:
      - main

jobs:
  cleanup-runs:
    runs-on: ubuntu-latest
    steps:
      - uses: rokroskar/workflow-run-cleanup-action@master
        env:
          GITHUB_TOKEN: "${{ secrets.GITHUB_TOKEN }}"
    if: "!startsWith(github.ref, 'refs/tags/') && github.ref != 'refs/heads/main'"

  build:
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v2.3.5
      - uses: actions/setup-go@v2
        with:
          go-version: 1.17
      - uses: technote-space/get-diff-action@v5
        id: git_diff
        with:
          SUFFIX_FILTER: |
            .go
            .mod
            .sum
      - run: |
          make build
        if: "env.GIT_DIFF != ''"