config.yml

version: 2

#
# Jobs
#

jobs:

  # This job builds the base project directory (e.g. ~/package.json)
  build:
    docker:
      - image: circleci/node:6.10.3
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}
      - run: npm install
      - save_cache:
          key: dependency-cache-{{ checksum "package.json" }}
          paths:
            - node_modules

  # This job runs the lint tool on the whole repository
  lint:
    docker:
      - image: circleci/node:8
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "examples/serverless-framework/aws/package.json" }}
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-lambda
      # need to set permissions on the npm prefix so that we can npm link packages
      - run: sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
      - run: ./scripts/link-package.sh packages/serverless-plugin lambda               
      - run: npm run lint

  # This job runs all of the unit tests in the repository
  unit_test:
    docker:
      # Node 8 so we can avoid transpiling our tests
      - image: circleci/node:8
      # The unit tests require DevTools on localhost:9222
      - image: adieuadieu/headless-chromium-for-aws-lambda:stable
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}     
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "examples/serverless-framework/aws/package.json" }}
      - run:
          name: Install Chromium for local development Launcher test
          command: sudo apt-get install -y chromium
      - run: npm run ava

  # This job builds the @serverless-chrome/lambda package
  build_lambda:
    # use a machine because we extract binaries from Docker images  
    machine: true
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}      
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}
      - run:
          name: Add chromium binary if missing
          command: |
            cd packages/lambda
            if [ ! -f "dist/headless-chromium" ]; then
              ./scripts/package-binaries.sh chromium stable
              cp dist/stable-headless-chromium dist/headless-chromium
            fi
      - run: cd packages/lambda && npm install
      - save_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}
          paths:
            - packages/lambda/node_modules
            - packages/lambda/dist/headless-chromium
            - packages/lambda/dist/stable-headless-chromium
      - run: cd packages/lambda && npm run build
      - save_cache:
          key: build-cache-{{ .Revision }}-package-lambda
          paths:
            - packages/lambda/dist  

  # This job runs the @serverless-chrome/lambda package's integration tests
  integration_test_lambda:
    # use a machine because we run the integration tests with Docker (lambci/lambda)
    machine: true
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}      
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-lambda               
      - run:
          name: Integration test
          command: cd packages/lambda && npm test

  # This job builds the serverless-plugin package
  build_serverless_plugin:
    docker:
      - image: circleci/node:6.10.3
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}      
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-lambda
      # need to set permissions on the npm prefix so that we can npm link packages
      - run: sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
      - run: ./scripts/link-package.sh packages/serverless-plugin lambda
      - run: cd packages/serverless-plugin && npm install
      - run: cd packages/serverless-plugin && npm run build
      - save_cache:
          key: build-cache-{{ .Revision }}-package-serverless-plugin
          paths:
            - packages/serverless-plugin/dist         
      - run: |
          [ -z "$CIRCLE_TAG" ] || ./scripts/link-package.sh packages/serverless-plugin/integration-test lambda
      - run: cd packages/serverless-plugin/integration-test && npm install      
      - save_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
          paths:
            - packages/serverless-plugin/node_modules
            - packages/serverless-plugin/integration-test/node_modules           

  # This job runs the serverless-plugin package's integration tests
  integration_test_serverless_plugin:
    # use a machine because we run the integration tests with Docker (lambci/lambda)
    machine: true
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}      
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-lambda
      - run:
          name: Integration test
          command: cd packages/serverless-plugin && npm test

  # This job builds the serverless-framework AWS example service
  build_serverless_example:
    docker:
      - image: circleci/node:6.10.3
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}      
      - restore_cache:
          key: dependency-cache-{{ checksum "examples/serverless-framework/aws/package.json" }}
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-lambda
      - restore_cache:
          key: build-cache-{{ .Revision }}-package-serverless-plugin          
      # need to set permissions on the npm prefix so that we can npm link packages
      - run: sudo chown -R $(whoami) $(npm config get prefix)/{lib/node_modules,bin,share}
      - run: ./scripts/link-package.sh packages/serverless-plugin lambda                
      - run: ./scripts/link-package.sh examples/serverless-framework/aws serverless-plugin          
      - run: cd examples/serverless-framework/aws && npm install
      - save_cache:
          key: dependency-cache-{{ checksum "examples/serverless-framework/aws/package.json" }}
          paths:
            - examples/serverless-framework/aws/node_modules      

  # This job checks for new versions of browsers (chromium)
  # and updates the repository code when new docker images have been built
  update_browser_versions:
    docker:
      - image: circleci/node:6.10.3
    branch:
      - master
    steps:
      - checkout
      - run: scripts/update-browser-versions.sh

  # This job handles release automation. Usually run when new binaries of
  # browsers have been built. Only stable-channel binaries will trigger a git tag
  # from which we make releases.
  release:
    # use a machine because we run Docker containers while preparing the release
    machine: true
    branch:
      - master
    steps:
      - checkout
      - restore_cache:
          key: dependency-cache-{{ checksum "package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/lambda/package.json" }}
      - restore_cache:
          key: dependency-cache-{{ checksum "packages/serverless-plugin/package.json" }}-{{ checksum "packages/serverless-plugin/integration-test/package.json" }}
      # we need a newer version of NPM than is available by default, e.g. >=4
      # because we make use of the "prepublishOnly" package.json script, which was introduces in npm@4
      - run:
          name: Update NPM
          command: npm install -g npm@latest
      - run: scripts/release.sh

  # This step triggers builds of binaries when new versions are available
  # The builds happen on AWS Spot Instances created by this step and are not run
  # on CircleCI due to instance-size/build-time constraints there.
  # AWS Spot Instances are configured by ~/aws/ec2-spot-instance-specification.json.
  # On start up, the spot instances run the user-data script in ~/aws/user-data.sh.
  # Using "amazonlinux:latest" image because it's easy to install aws-cli.
  build_new_binaries:
    docker:
      - image: amazonlinux:latest
    branch:
      - master
    steps:
      - checkout
      - run:
          name: Install AWS CLI & JQ
          command: yum install -y aws-cli jq
      - run: 
          name: Build stable-channel Chromium
          command: scripts/ci-daily.sh stable chromium
      - run: 
          name: Build beta-channel Chromium
          command: scripts/ci-daily.sh beta chromium
      - run: 
          name: Build dev-channel Chromium
          command: scripts/ci-daily.sh dev chromium


#
# Workflows
#

workflows:
  version: 2

  # Runs on every commit. The jobs install and build dependencies
  # and also setup test environments and prerequisites for integration tests
  # On tagged commits on master branch, the "release" job automates publishing 
  # of NPM packages and making a GitHub release. The release and npm packages are published
  # by a bot account (botsimo).
  build_test_release:
    jobs:
      - build     

      - build_lambda:     
          requires:
            - build
      - build_serverless_plugin:    
          requires:
            - build_lambda
      - build_serverless_example:     
          requires:
            - build_serverless_plugin
      - lint:      
          requires:
            - build
            - build_lambda
            - build_serverless_plugin
            - build_serverless_example
      - unit_test:     
          requires:
            - build
            - build_lambda
            - build_serverless_plugin
            - build_serverless_example
      - integration_test_lambda:      
          requires:
            - build_lambda
      - integration_test_serverless_plugin:    
          requires:
            - build_serverless_plugin
      - release:
          filters:
            branches:
              only: master
          requires:
            - lint
            - unit_test
            - integration_test_lambda
            - integration_test_serverless_plugin

  # Runs daily at 08:00 UTC. The job checks for new versions of
  # headless browsers (chromium) and creates an AWS spot-instance-request
  # on which to compile/build any new versions.
  # Takes about 2h10m for Chromium 64+ on c5.2xlarge
  daily_build:
    triggers:
      - schedule:
          cron: "0 8 * * *"
          filters:
            branches:
              only:
                - master
    jobs:
      - build_new_binaries

  # Runs daily at 11:00 UTC. The job checks if any new versions of
  # headless browsers (chromium) have been built and updates the repository
  # code to point at any new versions. A new stable-channel version will
  # trigger an automated release in the "release" job in the build_test_release workflow
  daily_version_update:
    triggers:
      - schedule:
          cron: "0 11 * * *"
          filters:
            branches:
              only:
                - master
    jobs:
      - update_browser_versions