name: Release

on:
  push:
    tags:
      - 'v*.*.*'

jobs:
  release:
    runs-on: ubuntu-18.04
    steps:
      - uses: actions/checkout@v2

      - name: Dump GitHub context
        env:
          GITHUB_CONTEXT: ${{ toJson(github) }}
        run: echo "${GITHUB_CONTEXT}"

      - name: Install github/hub
        run: |
          export HUB_VERSION="2.14.2"
          curl -fsSL https://github.com/github/hub/raw/8d91904208171b013f9a9d1175f4ab39068db047/script/get | bash -s "${HUB_VERSION}"

      - name: Create release
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          TAG_NAME="${GITHUB_REF##refs/tags/}"
          echo "See [CHANGELOG.md](https://github.com/${GITHUB_REPOSITORY}/blob/${TAG_NAME}/CHANGELOG.md) for more details." > ./release_notes.md
          RELEASE_NAME="$(jq -r '.name' ./package.json)"
          sed -i "1i${RELEASE_NAME} ${TAG_NAME}\n" ./release_notes.md
          ./bin/hub release create \
            --draft \
            --prerelease \
            --file ./release_notes.md \
            "${TAG_NAME}"