sync-release.yml

name: Sync Release to R2

on:
  workflow_dispatch:
    inputs:
      tag:
        description: GitHub Release tag; empty uses the latest stable release
        required: false
        type: string

permissions:
  contents: read

concurrency:
  group: sync-r2-release
  cancel-in-progress: false

jobs:
  sync-release-to-r2:
    runs-on: ubuntu-latest
    timeout-minutes: 120
    env:
      AWS_ACCESS_KEY_ID: ${{ secrets.R2_ACCESS_KEY_ID }}
      AWS_SECRET_ACCESS_KEY: ${{ secrets.R2_SECRET_ACCESS_KEY }}
      AWS_DEFAULT_REGION: auto
      R2_ACCOUNT_ID: ${{ secrets.R2_ACCOUNT_ID }}
      R2_BUCKET: ${{ secrets.R2_BUCKET }}
      GH_TOKEN: ${{ github.token }}
    steps:
      - name: Download Release Assets
        run: |
          if [ -n "${{ inputs.tag }}" ]; then
            gh release download "${{ inputs.tag }}" --repo ${{ github.repository }} --dir assets --pattern '*'
          else
            gh release download --repo ${{ github.repository }} --dir assets --pattern '*'
          fi

      - name: Sync to Cloudflare R2
        run: |
          TAG="${{ inputs.tag }}"
          if [ -z "$TAG" ]; then
            TAG=$(gh release view --repo ${{ github.repository }} --json tagName -q .tagName)
          fi

          if [ -z "$TAG" ]; then
            echo "错误: 未能获取到有效的 Release 标签"
            exit 1
          fi

          mkdir -p upload_dir/$TAG
          test -s assets/checksums.txt
          cp assets/checksums.txt upload_dir/$TAG/
          find assets -type f -name '*.zip' -exec cp {} upload_dir/$TAG/ \;
          test -n "$(find upload_dir/$TAG -maxdepth 1 -type f -name '*.zip' -print -quit)"
          echo "{\"tag_name\":\"$TAG\"}" > upload_dir/index.json

          echo "正在上传 $TAG 到 R2..."
          aws s3 sync upload_dir/$TAG/ s3://${R2_BUCKET}/serverdash/$TAG/ \
            --cache-control 'public, max-age=31536000, immutable' \
            --endpoint-url https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com
          aws s3 cp upload_dir/index.json s3://${R2_BUCKET}/serverdash/index.json \
            --cache-control 'no-store, max-age=0' \
            --content-type 'application/json' \
            --endpoint-url https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com

      - name: Clean Up Old Releases in Cloudflare R2
        run: |
          TAG="${{ inputs.tag }}"
          if [ -z "$TAG" ]; then
            TAG=$(gh release view --repo ${{ github.repository }} --json tagName -q .tagName)
          fi

          if [ -z "$TAG" ]; then
            echo "错误: 未能获取到有效的 Release 标签，跳过清理"
            exit 0
          fi

          # 获取仓库最近发布的 Releases 列表（排除 draft）
          RELEASE_TAGS=$(gh release list --repo ${{ github.repository }} --exclude-drafts --limit 10 --json tagName -q '.[].tagName')

          # 策略：仅保留最新版本和上一个版本
          KEEP_TAG_1="$TAG"
          KEEP_TAG_2=""
          for t in $RELEASE_TAGS; do
            if [ "$t" != "$KEEP_TAG_1" ]; then
              KEEP_TAG_2="$t"
              break
            fi
          done

          echo "=========================================="
          echo "R2 版本保留策略: 仅保留最新版本和上一个版本"
          echo "保留版本 1 (最新): $KEEP_TAG_1"
          if [ -n "$KEEP_TAG_2" ]; then
            echo "保留版本 2 (前一版): $KEEP_TAG_2"
          else
            echo "保留版本 2: 无 (未找到更早的发布版本)"
          fi
          echo "=========================================="

          # 列出 R2 中 serverdash/ 下所有的版本目录
          REMOTE_DIRS=$(aws s3 ls s3://${R2_BUCKET}/serverdash/ \
            --endpoint-url https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com \
            | awk '/PRE/ {print $2}' | sed 's#/$##')

          for dir in $REMOTE_DIRS; do
            [ -z "$dir" ] && continue
            if [ "$dir" = "$KEEP_TAG_1" ] || [ -n "$KEEP_TAG_2" -a "$dir" = "$KEEP_TAG_2" ]; then
              echo "✓ 保留版本: $dir"
            else
              echo "✗ 清理历史旧版本: s3://${R2_BUCKET}/serverdash/$dir/"
              aws s3 rm s3://${R2_BUCKET}/serverdash/$dir/ --recursive \
                --endpoint-url https://${R2_ACCOUNT_ID}.r2.cloudflarestorage.com
            fi
          done
          echo "=========================================="
          echo "R2 存储桶旧版本清理完成"