travis/pull:
    cd roc && ( cat .travis.yml | grep docker.sh | awk '{print $$3 " " $$4}' | \
        while read image script; do \
            docker pull $$image ;\
        done )

travis/build:
    cd roc && ( set -xe; :>build.status; \
        cat .travis.yml | grep docker.sh | awk '{print $$3 " " $$4}' | \
        while read image script; do \
            export TRAVIS_BUILD_DIR=`pwd`; \
            script -qfc "scripts/travis/docker.sh $$image $$script" /dev/null </dev/null ;\
        done; \
        cat build.status )