name: free-disk-space
description: Free space on / before large cache restores

# Delete preinstalled toolchains which gitea doesn't use and show disk space usage
runs:
  using: composite
  steps:
    - shell: bash
      run: |
        avail=$(df --output=avail -BG / | tr -dc '0-9')
        if [ "$avail" -ge 50 ]; then
          echo "skipping cleanup, ${avail}G free"
          exit 0
        fi
        echo "free space before cleanup:"
        df -h /
        for dir in /usr/local/lib/android /usr/local/.ghcup /opt/ghc /usr/share/dotnet; do
          sudo rm -rf "$dir" &
        done
        wait
        echo "free space after cleanup:"
        df -h /