luabinaries/.github/workflows/check-lua-updates.yml at 54f813a6697bbacace1126cede8f8cafc3d821fb · dyne/luabinaries · GitHub

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name: Check for Lua Updates

on:
  schedule:
    # Run weekly on Monday at 9:00 UTC to check for new releases
    - cron: '0 9 * * 1'
  workflow_dispatch: # Allow manual triggers

jobs:
  check-updates:
    name: Check for new Lua releases
    runs-on: ubuntu-latest
    steps:
      - uses: actions/checkout@v6
        with:
          fetch-depth: 0

      - name: Check for Lua updates
        id: check
        env:
          GH_TOKEN: ${{ github.token }}
        run: |
          # Function to get current version from existing tarballs
          get_current_version() {
            local major_minor=$1
            ls lua-${major_minor}.*.tar.gz 2>/dev/null | \
              grep -oP "${major_minor}\.\d+" | head -1 || echo ""
          }

          # Check each Lua version
          UPDATES_FOUND=false
          UPDATE_SUMMARY=""

          for version in lua51 lua53 lua54 lua55; do
            case $version in
              lua51) MAJOR_MINOR="5.1" ;;
              lua53) MAJOR_MINOR="5.3" ;;
              lua54) MAJOR_MINOR="5.4" ;;
              lua55) MAJOR_MINOR="5.5" ;;
            esac

            CURRENT=$(get_current_version $MAJOR_MINOR)

            # Get latest release info from lua.org
            LATEST=$(curl -s https://www.lua.org/ftp/ | \
              grep -oP "lua-${MAJOR_MINOR}\.\d+\.tar\.gz" | \
              sort -V | tail -1 | \
              grep -oP "${MAJOR_MINOR}\.\d+")

            echo "$version: Current=$CURRENT, Latest=$LATEST"

            if [ -n "$LATEST" ] && [ "$CURRENT" != "$LATEST" ]; then
              UPDATES_FOUND=true
              UPDATE_SUMMARY="${UPDATE_SUMMARY}- Lua ${CURRENT} → ${LATEST}\n"
              echo "UPDATE_${version}=${LATEST}" >> $GITHUB_ENV
            fi
          done

          echo "updates_found=$UPDATES_FOUND" >> $GITHUB_OUTPUT
          echo -e "$UPDATE_SUMMARY" > /tmp/update_summary.txt

      - name: Download new tarballs and update README
        if: steps.check.outputs.updates_found == 'true'
        run: |
          # Download new tarballs if version updates are found
          for version in lua51 lua53 lua54 lua55; do
            case $version in
              lua51) MAJOR_MINOR="5.1" ;;
              lua53) MAJOR_MINOR="5.3" ;;
              lua54) MAJOR_MINOR="5.4" ;;
              lua55) MAJOR_MINOR="5.5" ;;
            esac

            VAR_NAME="UPDATE_${version}"
            NEW_VERSION=${!VAR_NAME}

            if [ -n "$NEW_VERSION" ]; then
              echo "Downloading lua-${NEW_VERSION}.tar.gz"

              # Remove old tarball for this major.minor version
              rm -f lua-${MAJOR_MINOR}.*.tar.gz

              # Download new tarball
              curl -O "https://www.lua.org/ftp/lua-${NEW_VERSION}.tar.gz"

              # Calculate new SHA256
              NEW_SHA=$(sha256sum "lua-${NEW_VERSION}.tar.gz" | awk '{print $1}')

              # Update README with new hash
              sed -i "s/lua-${MAJOR_MINOR}\.[0-9]\+\.tar\.gz.*/lua-${NEW_VERSION}.tar.gz ($(date '+%b %d  %Y')) \`${NEW_SHA}\`/" README.md
            fi
          done

      - name: Create Pull Request
        if: steps.check.outputs.updates_found == 'true'
        uses: peter-evans/create-pull-request@v8
        with:
          token: ${{ secrets.GITHUB_TOKEN }}
          commit-message: |
            Update Lua versions to latest releases

            $(cat /tmp/update_summary.txt)
          branch: update-lua-versions
          delete-branch: true
          title: 'Update Lua to latest versions'
          body: |
            ## Lua Version Updates

            This automated PR updates Lua to the latest available versions:

            $(cat /tmp/update_summary.txt)

            ### Changes
            - Downloaded new Lua tarballs from https://www.lua.org/ftp/
            - Removed old tarball versions
            - Updated README.md with new SHA256 checksums
            - Makefile will automatically detect the new versions

            Please review and merge if the updates look correct.

            ---
            *This PR was automatically created by the check-lua-updates workflow*
          labels: |
            dependencies
            automated