create-draft-release.yaml

name: Create GitHub draft release

on:
  push:
    branches:
    - master
  pull_request:
    branches:
    - master

jobs:
  create_draft_release:
    runs-on: ubuntu-latest
    steps:
    - name: Checkout code
      uses: actions/checkout@v2
      with:
        fetch-depth: '0'
        fetch-tags: 'true'
    - name: Set up git identity
      run: |
        git config --local user.email "dev@giantswarm.io"
        git config --local user.name "taylorbot"
    - name: Create or update draft release tags
      run: |
        git fetch --tags
        for aws_release_dir in capa/*; do
          if [[ -f $aws_release_dir ]]; then
            echo "Skipping file $aws_release_dir"
            continue
          fi
          aws_release_version="$(basename $aws_release_dir)"
          echo "Found AWS release $aws_release_version"
          draft_tag_name="draft/aws/$aws_release_version"
          if [ $(git tag -l "$draft_tag_name") ]; then
            echo "Found existing tag $draft_tag_name, will force-overwrite it"
            # Delete origin tag
            git push --delete origin "$draft_tag_name"
            # Create new tag locally
            git tag -fa "$draft_tag_name" -m "AWS draft release $aws_release_version"
            git push -f origin "$draft_tag_name"
          else
            echo "Tag $draft_tag_name not found"
            
            published_tag_name="aws/$aws_release_version"
            published_release=$(gh release --repo giantswarm/releases view "$published_tag_name" --json "id,name,tagName,assets,isDraft,isPrerelease,url" 2>&1 || true)
            if [ "$published_release" = "release not found" ]; then
              echo "Didn't find a release for neither published tag $published_tag_name nor for tag $draft_tag_name. Will create a new draft tag."
              git tag -a "$draft_tag_name" -m "AWS (CAPA) draft release $aws_release_version"
              git push -f origin "$draft_tag_name"
            else
              echo "Found a published release with tag $published_tag_name. Skipping draft tag creation."
            fi
          fi
        done
    - name: Create or update draft releases
      env:
        GITHUB_TOKEN: "${{ secrets.TAYLORBOT_GITHUB_ACTION }}"
        BRANCH: ${{ github.head_ref }}
      run: |
        for aws_release_dir in capa/*; do
          if [[ -f $aws_release_dir ]]; then
            echo "Skipping file $aws_release_dir"
            continue
          fi
          aws_release_version="$(basename $aws_release_dir)"
          draft_tag_name="draft/aws/$aws_release_version"
          draft_release=$(gh release --repo giantswarm/releases view "$draft_tag_name" --json "id,name,tagName,assets,isDraft,isPrerelease,url" 2>&1 || true)
          current_commit="$(git rev-parse HEAD)"
          release_title="Draft workload cluster release $aws_release_version for AWS (CAPA)"
          pr_number="$(gh pr view "$BRANCH" --json "number" --jq ".number")"
          release_note="DO NOT USE FOR PRODUCTION PURPOSES. See PR #${pr_number} for more details. This draft release has been created automatically by GitHub action. It will be deleted when the PR is merged."
          if [ "$draft_release" = "release not found" ]; then
            published_tag_name="aws/$aws_release_version"
            published_release=$(gh release --repo giantswarm/releases view "$published_tag_name" --json "id,name,tagName,assets,isDraft,isPrerelease,url" 2>&1 || true)
            if [ "$published_release" = "release not found" ]; then
              echo "Didn't find a release for neither published tag $published_tag_name nor for tag $draft_tag_name. Will create a new draft release."
              gh release create --repo giantswarm/releases --draft --target "$current_commit" --title "$release_title" --notes "$release_note" "$draft_tag_name" "$aws_release_dir/release.yaml"
            else
              echo "Found a published release with tag $published_tag_name. Skipping draft release creation."
            fi
          else
            echo "Found existing draft release $draft_tag_name, will update it."
            gh release edit --repo giantswarm/releases --draft --target "$current_commit" --title "$release_title" --notes "$release_note" "$draft_tag_name"
            gh release upload --repo giantswarm/releases --clobber "$draft_tag_name" "$aws_release_dir/release.yaml" 
          fi
        done