auto_release.yml

name: auto_release

on:
  schedule:
    - cron: '0 1 * * *'
  workflow_dispatch:

jobs:
  release-and-tag:
    runs-on: ubuntu-latest

    steps:
      - name: Checkout repository
        uses: actions/checkout@v4
        with:
          fetch-depth: 1

      - name: Download and rename latest release asset
        id: download_latest_asset
        run: |
          if gh release download --pattern "mosdns-rule.tar.gz" --dir .; then
            mv mosdns-rule.tar.gz mosdns-rule-before.tar.gz
          fi
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}

      - name: Calculate sha256 of latest tarball
        id: sha_latest_tarball
        run: |
          if [ -f mosdns-rule-before.tar.gz ]; then
            echo "LATEST_TARBALL_HASH=$(sha256sum mosdns-rule-before.tar.gz | awk '{print $1}')" >> $GITHUB_ENV
          else
            echo "LATEST_TARBALL_HASH=" >> $GITHUB_ENV
          fi

      - name: Archive etc directory
        run: git archive -o "mosdns-rule.tar.gz" HEAD etc/mosdns/rule

      - name: Calculate sha256 of new tarball
        id: sha_new_tarball
        run: |
          NEW_TARBALL_HASH=$(sha256sum mosdns-rule.tar.gz | awk '{print $1}')
          echo "NEW_TARBALL_HASH=$NEW_TARBALL_HASH" >> $GITHUB_ENV
          echo "$NEW_TARBALL_HASH  mosdns-rule.tar.gz" > "mosdns-rule.tar.gz.sha256sum"

      - name: Check if tarballs are different
        run: |
          if [ "$LATEST_TARBALL_HASH" != "$NEW_TARBALL_HASH" ]; then
            echo "CHANGES_FOUND=true" >> $GITHUB_ENV
          else
            echo "CHANGES_FOUND=false" >> $GITHUB_ENV
          fi

      - name: Get the date
        run: echo "DATE=$(date +'%Y%m%d')" >> $GITHUB_ENV

      - name: Create Release and Upload Asset
        if: env.CHANGES_FOUND == 'true'
        uses: softprops/action-gh-release@v2
        with:
          tag_name: v${{ env.DATE }}
          name: v${{ env.DATE }}
          body: "Package etc directory on date ${{ env.DATE }}"
          files: |
            mosdns-rule.tar.gz
            mosdns-rule.tar.gz.sha256sum
        env:
          GITHUB_TOKEN: ${{ secrets.GITHUB_TOKEN }}