# Copyright (c) HashiCorp, Inc.
# SPDX-License-Identifier: MPL-2.0

# This workflow checks that there is either a 'pr/no-changelog' label applied to a PR
# or there is a .changelog/<pr number>.txt file associated with a PR for a changelog entry

name: Changelog Checker

on:
  pull_request:
    types: [opened, synchronize, labeled]
    # Runs on PRs to main and all release branches
    branches:
      - main
      - release/*

jobs:
  # checks that a .changelog entry is present for a PR
  changelog-check:
    # If there  a `pr/no-changelog` label we ignore this check. Also, we ignore PRs created by the bot assigned to `backport-assistant`
    if: "! ( contains(github.event.pull_request.labels.*.name, 'pr/no-changelog') || github.event.pull_request.user.login == 'hc-github-team-consul-core' )"
    runs-on: ubuntu-latest

    steps:
      - uses: actions/checkout@v2
        with:
          ref: ${{ github.event.pull_request.head.sha }}
          fetch-depth: 0 # by default the checkout action doesn't checkout all branches
      - name: Check for changelog entry in diff
        run: ./.github/scripts/changelog_checker.sh
        env:
          GITHUB_BASE_REF: ${{ github.event.pull_request.base.ref }}
          GITHUB_DEFAULT_BRANCH: ${{ github.event.repository.default_branch }}
          PR_NUMBER: ${{ github.event.pull_request.number }}