check-for-changeset.yml

name: Check for changeset

on:
  pull_request:
    types:
      - opened
      - reopened
      - synchronize
      - labeled
      - unlabeled

permissions:
  contents: read
  pull-requests: read

jobs:
  check:
    if: github.event.pull_request.user.login != 'dependabot[bot]'
    runs-on: ubuntu-latest
    steps:
      - name: Check for changeset or skip label
        env:
          GH_TOKEN: ${{ github.token }}
          PR_NUMBER: ${{ github.event.pull_request.number }}
        run: |
          if gh api "repos/${GITHUB_REPOSITORY}/issues/${PR_NUMBER}/labels" --paginate --jq '.[].name' | grep -qx 'skip changeset'; then
            echo 'The "skip changeset" label is present.'
            exit 0
          fi

          changesets=$(gh api "repos/${GITHUB_REPOSITORY}/pulls/${PR_NUMBER}/files" --paginate --jq '.[] | select(.status != "removed") | .filename' | grep -E '^\.changeset/[^/]+\.md$' | grep -Ev '^\.changeset/(README\.md|dependabot-[0-9]+\.md)$' || true)
          if [ -n "$changesets" ]; then
            echo 'The ".changeset/*.md" file pattern matched the changed files of the pull request.'
            exit 0
          fi

          echo 'No changeset found. If these changes should not result in a new version, apply the "skip changeset" label to this pull request. If these changes should result in a version bump, run "npx changeset" and commit the generated file.'
          exit 1