upload-yarn-binary.yml

name: Upload Yarn Binary to GitHub Release

on:
  workflow_dispatch:
    inputs:
      yarn_version:
        description: 'Yarn version to upload (e.g., 4.9.1)'
        required: true
        type: string

jobs:
  upload-yarn-binary:
    runs-on: ubuntu-latest
    permissions:
      contents: write
      packages: write
    env:
      YARN_VERSION: ${{ github.event.inputs.yarn_version }}
      YARN_FILENAME: yarn-${{ github.event.inputs.yarn_version }}.js
      RELEASE_TAG: v${{ github.event.inputs.yarn_version }}
    outputs:
      download_url: ${{ steps.output-url.outputs.download_url }}
    steps:
      - name: Checkout repository
        uses: actions/checkout@v6

      - name: Download yarn.js binary
        run: |
          curl -L -o "${YARN_FILENAME}" "https://repo.yarnpkg.com/${YARN_VERSION}/packages/yarnpkg-cli/bin/yarn.js"
          ls -lh "${YARN_FILENAME}"

      - name: Display SHA256 checksum
        run: |
          sha256sum "${YARN_FILENAME}"

      - name: Create or update GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release view "${RELEASE_TAG}" || gh release create "${RELEASE_TAG}" --title "Yarn ${YARN_VERSION}" --notes "Yarn CLI ${YARN_VERSION} binary."

      - name: Upload yarn.js to GitHub Release
        env:
          GH_TOKEN: ${{ secrets.GITHUB_TOKEN }}
        run: |
          gh release upload "${RELEASE_TAG}" "${YARN_FILENAME}" --clobber

      - name: Output download URL
        id: output-url
        run: |
          url="https://github.com/${GITHUB_REPOSITORY}/releases/download/${RELEASE_TAG}/${YARN_FILENAME}"
          echo "Download URL: ${url}"
          echo "download_url=${url}" >> "${GITHUB_OUTPUT}"