draft.yml

name: Copy Assets to Draft Release

on:
  release:
    types:
      - published
      - unpublished

jobs:
  copy-assets:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout Repository
        uses: actions/checkout@v3

      - name: Set up Node.js
        uses: actions/setup-node@v3
        with:
          node-version: "18"

      - name: Copy assets from latest to draft release
        uses: actions/github-script@v6
        with:
          script: |
            const latest = await github.rest.repos.getLatestRelease({
              owner: context.repo.owner,
              repo: context.repo.repo
            });

            core.info(latest);

            if (latest.assets.length === 0) {
              console.log("No assets found in latest release");
              return;
            }

            const assets = latest.assets;

            const draft = await github.rest.repos.createRelease({
              owner: context.repo.owner,
              repo: context.repo.repo,
              tag_name: "draft" + Date.now(),
              draft: true
            });

            for (const asset of assets) {
              if (asset.browser_download_url.includes("releases/download")) {
                // download data
                const download = await github.request({
                  method: "GET",
                  url: asset.url,
                  headers: {
                    Accept: "application/octet-stream",
                    Authorization: "Bearer " + process.env.GITHUB_TOKEN,
                  },
                  responseType: "arraybuffer"
                });
                // upload data
                const upload = await github.rest.repos.uploadReleaseAsset({
                  owner: context.repo.owner,
                  repo: context.repo.repo,
                  release_id: draft.id,
                  name: asset.name,
                  data: download.data,
                  headers: {
                    "Content-Type": asset.content_type,
                    "Content-Length": asset.size,
                  },
                });
                console.log(upload.name);
              }
            }