cd.yaml

name: CD
on:
  pull_request:
    types: [closed]
    branches: [main]

jobs:
  Pre-Check:
    if: |
      github.event.pull_request.merged &&
      endsWith(github.event.pull_request.title, '/workflows/cd') &&
      github.event.pull_request.user.login != 'polywrap-build-bot'
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: ${{github.event.pull_request.base.ref}}

      - name: Pull-Request Creator Is Publisher?
        run: |
          exists=$(echo $(grep -Fxcs ${CREATOR} .github/PUBLISHERS))
          if [ "$exists" == "1" ] ; then
            echo IS_PUBLISHER=true >> $GITHUB_ENV
          else
            echo IS_PUBLISHER=false >> $GITHUB_ENV
          fi
        env:
          CREATOR: ${{github.event.pull_request.user.login}}

      - name: Creator Is Not Publisher...
        if: env.IS_PUBLISHER == 'false'
        uses: actions/github-script@0.8.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '${{github.event.pull_request.user.login}} is not a PUBLISHER. Please see the .github/PUBLISHERS file...'
            })

      - name: Read VERSION into env.RELEASE_VERSION
        run: echo RELEASE_VERSION=$(cat VERSION) >> $GITHUB_ENV

      - name: Tag Exists?
        id: tag_check
        shell: bash -ex {0}
        run: |
          GET_API_URL="https://api.github.com/repos/${{github.repository}}/git/ref/tags/${{env.RELEASE_VERSION}}"
          http_status_code=$(curl -LI $GET_API_URL -o /dev/null -w '%{http_code}\n' -s \
            -H "Authorization: token ${GITHUB_TOKEN}")
          if [ "$http_status_code" -ne "404" ] ; then
            echo TAG_EXISTS=true >> $GITHUB_ENV
          else
            echo TAG_EXISTS=false >> $GITHUB_ENV
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Release Already Exists...
        if: env.TAG_EXISTS == 'true'
        uses: actions/github-script@0.8.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '[Release Already Exists](https://api.github.com/repos/${{github.repository}}/git/ref/tags/${{env.RELEASE_VERSION}}) (`${{env.RELEASE_VERSION}}`)'
            })

      - name: Fail If Conditions Aren't Met...
        if: |
          env.IS_PUBLISHER != 'true' ||
          env.TAG_EXISTS != 'false'
        run: exit 1

  CD:
    needs: Pre-Check
    runs-on: ubuntu-latest
    steps:
      - name: Checkout
        uses: actions/checkout@v3
        with:
          ref: ${{github.event.pull_request.base.ref}}

      - name: Set env.BUILD_BOT to Build Bot's Username
        run: echo BUILD_BOT=polywrap-build-bot >> $GITHUB_ENV

      - name: Read VERSION into env.RELEASE_VERSION
        run: echo RELEASE_VERSION=$(cat VERSION) >> $GITHUB_ENV

      - name: Building CD PR...
        uses: actions/github-script@0.8.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '[Building CD PR](https://github.com/${{github.repository}}/actions/runs/${{github.run_id}}) (`${{env.RELEASE_VERSION}}`)'
            })

      - name: Set up Python 3.10
        uses: actions/setup-python@v4
        with:
          python-version: "3.10"

      - name: Setup Node.js
        uses: actions/setup-node@master
        with:
          node-version: 'v18.16.0'
      
      - name: Install poetry
        run: curl -sSL https://install.python-poetry.org | python3 -

      - name: Install tomlkit
        run: pip3 install tomlkit

      - name: Set Git Identity
        run: |
          git config --global user.name '${{env.BUILD_BOT}}'
          git config --global user.email '${{env.BUILD_BOT}}@users.noreply.github.com'

      - name: Publish to PyPI
        run: python3 scripts/publish_packages.py
        env:
          POLYWRAP_BUILD_BOT_PYPI_PAT: ${{ secrets.POLYWRAP_BUILD_BOT_PYPI_PAT }}

      - name: Create Pull Request from dev to main
        id: cpr-cd
        uses: peter-evans/create-pull-request@v3
        with:
          branch: cd/${{env.RELEASE_VERSION}}
          delete-branch: true
          committer: GitHub <noreply@github.com>
          author: ${{env.BUILD_BOT}} <${{env.BUILD_BOT}}@users.noreply.github.com>
          commit-message: "chore: patch version to ${{env.RELEASE_VERSION}}"
          title: 'Python client CD (${{env.RELEASE_VERSION}})'
          body: |
            ## Python client CD (${{env.RELEASE_VERSION}})

      - name: CD PR Created...
        uses: actions/github-script@0.8.0
        with:
          github-token: ${{secrets.GITHUB_TOKEN}}
          script: |
            github.issues.createComment({
              issue_number: context.issue.number,
              owner: context.repo.owner,
              repo: context.repo.repo,
              body: '**[Release PR Created](https://github.com/${{github.repository}}/pull/${{ steps.cpr-cd.outputs.pull-request-number }}) (`${{env.RELEASE_VERSION}}`)**'
            })

      - id: changelog
        name: "Generate release changelog"
        uses: heinrichreimer/github-changelog-generator-action@v2.3
        with:
          unreleasedOnly: true
          unreleasedLabel: ${{ env.RELEASE_VERSION }}
          token: ${{ secrets.GITHUB_TOKEN }}
        continue-on-error: true

      - name: Create GitHub Release
        id: create_release
        uses: actions/create-release@v1
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        with:
          tag_name: ${{ env.RELEASE_VERSION }}
          release_name: Release ${{ env.RELEASE_VERSION }}
          body: ${{ steps.changelog.outputs.changelog }}
          draft: true
          prerelease: true