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name: Check Go modules

on:
  push:
    paths:
      - .github/check-go-modules/**
      - .github/workflows/check-go-modules.yml
      - go.mod
      - go.sum
      - GO_VERSION
      - vendor/**
  create:
  pull_request:
    paths:
      - .github/check-go-modules/**
      - .github/workflows/check-go-modules.yml
      - go.mod
      - go.sum
      - GO_VERSION
      - vendor/**
    types: [opened, reopened, ready_for_review, synchronize]

jobs:
  check-go-modules:
    if: github.event.pull_request.draft == false
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@master
      - name: Check Go Version
        run: echo "::set-output name=value::$(cat GO_VERSION)"
        id: go-version
      - name: Install Go
        uses: actions/setup-go@v2
        with:
          go-version: ${{ steps.go-version.outputs.value }}
      - name: Vendor dependencies
        id: vendor-dependencies
        run: .github/actions/check-go-modules/entrypoint.sh vendor_dependencies
      - name: Untracked changes to vendored dependencies
        if: ${{ steps.vendor-dependencies.outcome == 'success' && always() }}
        run: .github/actions/check-go-modules/entrypoint.sh check_vendored_deps
      - name: Changes to go.mod
        if: ${{ steps.vendor-dependencies.outcome == 'success' && always() }}
        run: .github/actions/check-go-modules/entrypoint.sh check_go_file go.mod
      - name: Changes to go.sum
        if: ${{ steps.vendor-dependencies.outcome == 'success' && always() }}
        run: .github/actions/check-go-modules/entrypoint.sh check_go_file go.sum