machine: node: version: 4.7.3 environment: YARN_VERSION: 0.20.3 PATH: "${PATH}:${HOME}/.yarn/bin:${HOME}/${CIRCLE_PROJECT_REPONAME}/node_modules/.bin" dependencies: pre: - | if [[ ! -e ~/.yarn/bin/yarn || $(yarn --version) != "${YARN_VERSION}" ]]; then curl -o- -L https://yarnpkg.com/install.sh | bash -s -- --version $YARN_VERSION fi cache_directories: - ~/.yarn - ~/.cache/yarn override: - NODE_ENV=dev yarn install compile: override: - yarn run build test: override: - yarn run test