action.yaml

# https://docs.github.com/en/actions/creating-actions/creating-a-composite-action
# https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#inputs
# https://docs.github.com/en/actions/creating-actions/metadata-syntax-for-github-actions#runs-for-composite-run-steps-actions
# https://docs.github.com/en/rest/releases/releases#create-a-release
# https://docs.github.com/en/developers/webhooks-and-events/webhooks/webhook-events-and-payloads#push

name: "Create a release"

description: "Creates a release"

inputs:
  github-token:
    description: "GitHub token of a user with permission to create a release"
    required: true

runs:
  using: "composite"

  steps:
    - name: "Determine tag"
      if: "${{ github.event_name }} == 'push' && ${{ github.ref_type }} == 'tag'"
      run: "echo \"RELEASE_TAG=${GITHUB_REF#refs/tags/}\" >> $GITHUB_ENV"
      shell: "bash"

    - name: "Create release"
      uses: "actions/github-script@v7.0.1"
      with:
        github-token: "${{ inputs.github-token }}"
        script: |
          if (!process.env.RELEASE_TAG) {
            core.setFailed("The environment variable RELEASE_TAG is not defined.")

            return;
          }

          try {
            const response = await github.rest.repos.createRelease({
              draft: false,
              generate_release_notes: true,
              name: process.env.RELEASE_TAG,
              owner: context.repo.owner,
              prerelease: false,
              repo: context.repo.repo,
              tag_name: process.env.RELEASE_TAG,
            });

            core.exportVariable('RELEASE_HTML_URL', response.data.html_url);
            core.exportVariable('RELEASE_ID', response.data.id);
            core.exportVariable('RELEASE_UPLOAD_URL', response.data.upload_url);
          } catch (error) {
            core.setFailed(error.message);
          }