check-changeset-added.yml

# Fails if a PR doesn't have a changeset and is not labeled
# as "no changeset needed"

name: Check that the PR has a changeset

on:
  merge_group:
  pull_request:
    branches:
      - main
      - v2
    types:
      - opened
      - synchronize
      - reopened
      - labeled
      - unlabeled

jobs:
  check-if-changeset:
    name: Check that PR has a changeset
    runs-on: ubuntu-latest
    steps:
      - name: Checkout the repository
        uses: actions/checkout@v5

      - name: Set up the environment
        uses: ./.github/actions/setup-env

      # We need to fetch the base ref because the pull request check inspects the diff between the head and the base ref
      - run: git fetch origin "$GITHUB_BASE_REF":"$GITHUB_BASE_REF"

      - name: Check if merge group is valid
        if: github.event_name == 'merge_group'
        run: node scripts/validate-merge-group.ts

      - name: Check if PR has a changeset
        if: github.event_name == 'pull_request'
        env:
          GITHUB_EVENT_PULL_REQUEST_LABELS: ${{ toJson(github.event.pull_request.labels) }}
        run: node scripts/validate-pull-request-changeset.ts