name: Purge image cache on: schedule: - cron: '4 18 * * */7' jobs: purge: runs-on: ubuntu-18.04 steps: - run: > curl -sL https://github.com/${GITHUB_REPOSITORY} | grep -oE '<img src="https?://camo.githubusercontent.com/[^"]+' | sed -e 's/<img src="//' | xargs -I % curl -sX PURGE %