PR preview and tests with now.sh

config.yaml

version: 2

references:
  container_config: &container_config
    docker:
      - image: circleci/node:10.8

  restore_deps_cache: &restore_deps_cache
    restore_cache:
      keys:
        - v1-dependencies-{{ checksum "package.json" }}
        - v1-dependencies-

  save_deps_cache: &save_deps_cache
    save_cache:
      key: v1-dependencies-{{ checksum "package.json" }}
      paths:
        - node_modules

  install_deps: &install_deps
    run:
      name: Dependencies
      command: yarn install

jobs:
  deploy-to-now:
    <<: *container_config
    steps:
      - checkout
      - *restore_deps_cache
      - *install_deps
      - *save_deps_cache
      -
        run:
          name: Install now.sh
          command: yarn global add now
      -
        run:
          name: Deploy to now.sh
          command: ./bin/deploy-now.sh
      -
        persist_to_workspace:
          root: workspace
          paths:
            - deployment.json

  run-functional-tests:
    <<: *container_config
    steps:
      - checkout
      - *restore_deps_cache
      - *install_deps
      - *save_deps_cache
      -
        attach_workspace:
          at: workspace
      -
        run:
          name: Run functional tests
          command: yarn test-functional:local
          
workflows:
  version: 2
  deploy-and-test:
    jobs:
      - deploy-to-now
      - run-functional-tests:
          requires:
            - deploy-to-now
          filters:
            branches:
              only: master

deploy-now.sh

#!/usr/bin/env bash

set -o nounset

export PATH="$PATH:$HOME/.config/yarn/global/node_modules/.bin"

DEPLOYMENT_URL=''
ALIASED_URL=''

if [ -n "${CIRCLE_PULL_REQUEST:-}" ]; then
  PR_NUMBER=${CIRCLE_PULL_REQUEST##*/}
fi

# Post issue comment in PR with deployment URL
function post-github-comment {
  curl -X "POST" "https://api.github.com/repos/${CIRCLE_PROJECT_USERNAME}/${CIRCLE_PROJECT_REPONAME}/issues/${PR_NUMBER}/comments" \
       -H "Authorization: token ${GITHUB_TOKEN}" \
       -H 'Content-Type: application/json; charset=utf-8' \
       -d $'{
         "body": "Deployed to: '"${ALIASED_URL}"'"
       }'
}

function deploy-pr {
  echo "Deploying PR #${PR_NUMBER}"
  ALIAS="my-app-pr-${CIRCLE_PULL_REQUEST##*/}"
  ALIASED_URL="https://${ALIAS}.now.sh"

  DEPLOYMENT_URL=$(now -t ${NOW_TOKEN} -A now.pr.json)
  now -t ${NOW_TOKEN} alias set ${DEPLOYMENT_URL} ${ALIAS}
  now -t ${NOW_TOKEN} rm my-app-pr --safe --yes

  post-github-comment
}

function deploy-branch {
  echo "Deploying branch: ${CIRCLE_BRANCH:-}"
  ALIAS="my-app-${CIRCLE_BRANCH}"
  ALIASED_URL="https://${ALIAS}.now.sh"

  DEPLOYMENT_URL=$(now -t ${NOW_TOKEN} -A now.branch.json)
  now -t ${NOW_TOKEN} alias set ${DEPLOYMENT_URL} ${ALIAS}
  now -t ${NOW_TOKEN} rm my-app-branch --safe --yes
}

function add-deployment-details-to-workspace {
  mkdir -p workspace
  echo $'{"now": "'${DEPLOYMENT_URL}'", "alias": "'${ALIASED_URL}'"}' > workspace/deployment.json
  cat workspace/deployment.json
}

if [ -n "${PR_NUMBER:-}" ]
then
  deploy-pr
  add-deployment-details-to-workspace
elif [ "${CIRCLE_BRANCH:-}" == "master" ]
then
  deploy-branch
  add-deployment-details-to-workspace
else
  echo "Nothing to do"
fi