go-mod-tidy.yml

name: go

on:
  push:
    branches: [main]
  pull_request:
    branches: [main]
jobs:
  build:
    name: "go mod tidy"
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v3
      - name: Set up Go
        uses: actions/setup-go@v3
        with:
          go-version: "1.21"
      # Cache Go modules if go.sum is unchanged.
      # Docs here: https://github.com/actions/cache/blob/9c7b3e90bdf39569c497c98e469f8a00e061c43f/examples.md#linux-1
      - uses: actions/cache@v3
        with:
          path: |
            ~/.cache/go-build
            ~/go/pkg/mod
          key: ${{ runner.os }}-go-${{ hashFiles('**/go.sum') }}
          restore-keys: |
            ${{ runner.os }}-go-
      - name: check 'go mod tidy'
        run: |
          go mod tidy
          echo
          echo
          git diff --name-only --exit-code || (echo "Please run 'go mod tidy'."; exit 1)