--- check: linkcheck --version | grep -E 'v[0-9][.0-9]+' || (linkcheck --version; false) all: type: custom command: curl -sS -L --fail -o /usr/local/bin/linkcheck https://raw.githubusercontent.com/cytopia/linkcheck/master/linkcheck post: chmod +x /usr/local/bin/linkcheck build_dep: [] run_dep: []