# Configuration file for https://circleci.com/gh/angular/angular

# Note: YAML anchors allow an object to be re-used, reducing duplication.
# The ampersand declares an alias for an object, then later the `<<: *name`
# syntax dereferences it.
# See http://blog.daemonl.com/2016/02/yaml.html
# To validate changes, use an online parser, eg.
# http://yaml-online-parser.appspot.com/

# Note that the browser docker image comes with Chrome and Firefox preinstalled. This is just
# needed for jobs that run tests without Bazel. Bazel runs tests with browsers that will be
# fetched by the Webtesting rules. Therefore for jobs that run tests with Bazel, we don't need a
# docker image with browsers pre-installed.
# **NOTE**: If you change the version of the docker images, also change the `cache_key` suffix.
var_1: &default_docker_image circleci/node:10.12
var_2: &browsers_docker_image circleci/node:10.12-browsers
var_3: &cache_key v2-angular-{{ .Branch }}-{{ checksum "yarn.lock" }}-node-10.12

# Define common ENV vars
var_4: &define_env_vars
  run:
    name: Define environment variables
    command: ./.circleci/env.sh

var_5: &setup_bazel_remote_execution
  run:
    name: "Setup bazel RBE remote execution"
    command: |
      openssl aes-256-cbc -d -in .circleci/gcp_token -k "$CI_REPO_NAME" -out /home/circleci/.gcp_credentials
      echo "export GOOGLE_APPLICATION_CREDENTIALS=/home/circleci/.gcp_credentials" >> $BASH_ENV
      sudo bash -c "echo 'build --config=remote' >> /etc/bazel.bazelrc"

# Settings common to each job
var_6: &job_defaults
  working_directory: ~/ng
  docker:
  - image: *default_docker_image

# After checkout, rebase on top of master.
# Similar to travis behavior, but not quite the same.
# See https://discuss.circleci.com/t/1662
var_7: &post_checkout
  post: git pull --ff-only origin "refs/pull/${CI_PULL_REQUEST//*pull\//}/merge"

var_8: &yarn_install
  run:
    name: Running Yarn install
    command: yarn install --frozen-lockfile --non-interactive

var_9: &setup_circleci_bazel_config
  run:
    name: Setting up CircleCI bazel configuration
    command: sudo cp .circleci/bazel.rc /etc/bazel.bazelrc

version: 2
jobs:
  lint:
    <<: *job_defaults
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - *yarn_install

      - run: 'yarn bazel:format -mode=check ||
              (echo "BUILD files not formatted. Please run ''yarn bazel:format''" ; exit 1)'
      # Run the skylark linter to check our Bazel rules
      - run: 'yarn bazel:lint ||
              (echo -e "\n.bzl files have lint errors. Please run ''yarn bazel:lint-fix''"; exit 1)'

      - run: ./node_modules/.bin/gulp lint

  test:
    <<: *job_defaults
    resource_class: xlarge
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - *setup_circleci_bazel_config
      - *yarn_install

      # Setup remote execution and run RBE-compatible tests.
      - *setup_bazel_remote_execution
      - run: yarn bazel test //... --build_tag_filters=-ivy-only --test_tag_filters=-ivy-only,-local
      # Now run RBE incompatible tests locally.
      - run: sudo cp .circleci/bazel.rc /etc/bazel.bazelrc
      - run: yarn bazel test //... --build_tag_filters=-ivy-only,local --test_tag_filters=-ivy-only,local

      - save_cache:
          key: *cache_key
          paths:
            - "node_modules"
            - "~/bazel_repository_cache"

  # Temporary job to test what will happen when we flip the Ivy flag to true
  test_ivy_aot:
    <<: *job_defaults
    resource_class: xlarge
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - *setup_circleci_bazel_config
      - *yarn_install
      - *setup_bazel_remote_execution

        # We need to explicitly specify the --symlink_prefix option because otherwise we would
        # not be able to easily find the output bin directory when uploading artifacts for size
        # measurements.
      - run: yarn test-ivy-aot //... --symlink_prefix=dist/

        # Publish bundle artifacts which will be used to calculate the size change. **Note**: Make
        # sure that the size plugin from the Angular robot fetches the artifacts from this CircleCI
        # job (see .github/angular-robot.yml). Additionally any artifacts need to be stored with the
        # following path format: "{projectName}/{context}/{fileName}". This format is necessary
        # because otherwise the bot is not able to pick up the artifacts from CircleCI. See:
        # https://github.com/angular/github-robot/blob/master/functions/src/plugins/size.ts#L392-L394
      - store_artifacts:
          path: dist/bin/packages/core/test/bundling/hello_world/bundle.min.js
          destination: core/hello_world/bundle
      - store_artifacts:
          path: dist/bin/packages/core/test/bundling/todo/bundle.min.js
          destination: core/todo/bundle
      - store_artifacts:
          path: dist/bin/packages/core/test/bundling/hello_world/bundle.min.js.br
          destination: core/hello_world/bundle.br
      - store_artifacts:
          path: dist/bin/packages/core/test/bundling/todo/bundle.min.js.br
          destination: core/todo/bundle.br

  test_aio:
    <<: *job_defaults
    docker:
      # Needed because the AIO tests and the PWA score test depend on Chrome being available.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
        # Build aio
      - run: yarn --cwd aio build --progress=false
        # Lint the code
      - run: yarn --cwd aio lint
        # Run PWA-score tests
        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
        # Check the bundle sizes.
        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
      - run: yarn --cwd aio payload-size
        # Run unit tests
      - run: yarn --cwd aio test --watch=false
        # Run e2e tests
      - run: yarn --cwd aio e2e
        # Run unit tests for Firebase redirects
      - run: yarn --cwd aio redirects-test

  deploy_aio:
    <<: *job_defaults
    docker:
    # Needed because before deploying the deploy-production script runs the PWA score tests.
    - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
        # Deploy angular.io to production (if necessary)
      - run: setPublicVar CI_STABLE_BRANCH "$(npm info @angular/core dist-tags.latest | sed -r 's/^\s*([0-9]+\.[0-9]+)\.[0-9]+.*$/\1.x/')"
      - run: yarn --cwd aio deploy-production

  test_aio_local:
    <<: *job_defaults
    docker:
      # Needed because the AIO tests and the PWA score test depend on Chrome being available.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - attach_workspace:
          at: dist
      - *define_env_vars
        # Build aio (with local Angular packages)
      - run: yarn --cwd aio build-local --progress=false
        # Run PWA-score tests
        # (Run before unit and e2e tests, which destroy the `dist/` directory.)
      - run: yarn --cwd aio test-pwa-score-localhost $CI_AIO_MIN_PWA_SCORE
        # Run unit tests
      - run: yarn --cwd aio test --watch=false
        # Run e2e tests
      - run: yarn --cwd aio e2e

  test_aio_tools:
    <<: *job_defaults
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - attach_workspace:
          at: dist
      - *define_env_vars
        # Install
      - run: yarn --cwd aio install --frozen-lockfile --non-interactive
      - run: yarn --cwd aio extract-cli-command-docs
        # Run tools tests
      - run: yarn --cwd aio tools-test
      - run: ./aio/aio-builds-setup/scripts/test.sh

  test_docs_examples_0:
    <<: *job_defaults
    docker:
      # Needed because the example e2e tests depend on Chrome.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - attach_workspace:
          at: dist
      - *define_env_vars
        # Install root
      - *yarn_install
        # Install aio
      - run: yarn --cwd aio install --frozen-lockfile --non-interactive
        # Run examples tests
      - run: yarn --cwd aio example-e2e --setup --local --shard=0/2

  test_docs_examples_1:
    <<: *job_defaults
    docker:
      # Needed because the example e2e tests depend on Chrome.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - attach_workspace:
          at: dist
      - *define_env_vars
        # Install root
      - *yarn_install
        # Install aio
      - run: yarn --cwd aio install --frozen-lockfile --non-interactive
        # Run examples tests
      - run: yarn --cwd aio example-e2e --setup --local --shard=1/2

  # This job should only be run on PR builds, where `CI_PULL_REQUEST` is not `false`.
  aio_preview:
    <<: *job_defaults
    environment:
       AIO_SNAPSHOT_ARTIFACT_PATH: &aio_preview_artifact_path 'aio/tmp/snapshot.tgz'
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - *yarn_install
      - run: ./aio/scripts/build-artifacts.sh $AIO_SNAPSHOT_ARTIFACT_PATH $CI_PULL_REQUEST $CI_COMMIT
      - store_artifacts:
          path: *aio_preview_artifact_path
          # The `destination` needs to be kept in synch with the value of
          # `AIO_ARTIFACT_PATH` in `aio/aio-builds-setup/Dockerfile`
          destination: aio/dist/aio-snapshot.tgz
      - run: node ./aio/scripts/create-preview $CIRCLE_BUILD_NUM

  # This job should only be run on PR builds, where `CI_PULL_REQUEST` is not `false`.
  test_aio_preview:
    <<: *job_defaults
    docker:
      # Needed because the test-preview script runs e2e tests and the PWA score test with Chrome.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - run: yarn install --cwd aio --frozen-lockfile --non-interactive
      - run:
          name: Wait for preview and run tests
          command: node aio/scripts/test-preview.js $CI_PULL_REQUEST $CI_COMMIT $CI_AIO_MIN_PWA_SCORE

  # This job exists only for backwards-compatibility with old scripts and tests
  # that rely on the pre-Bazel dist/packages-dist layout.
  # It duplicates some work with the job above: we build the bazel packages
  # twice. Even though we have a remote cache, these jobs will typically run in
  # parallel so up-to-date outputs will not be available at the time the build
  # starts.
  # No new jobs should depend on this one.
  build-packages-dist:
    <<: *job_defaults
    resource_class: xlarge
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - *setup_circleci_bazel_config
      - *yarn_install
      - *setup_bazel_remote_execution

      - run: scripts/build-packages-dist.sh

      # Save the npm packages from //packages/... for other workflow jobs to read
      # https://circleci.com/docs/2.0/workflows/#using-workspaces-to-share-data-among-jobs
      - persist_to_workspace:
          root: dist
          paths:
            - packages-dist
            - packages-dist-ivy-aot

  # We run the integration tests outside of Bazel for now.
  # They are a separate workflow job so that they can be easily re-run.
  # When the tests are ported to bazel test targets, they should move to the "test"
  # job above, as part of the bazel test command. That has flaky_test_attempts so the
  # need to re-run manually should be alleviated.
  # See comments inside the integration/run_tests.sh script.
  integration_test:
    <<: *job_defaults
    docker:
      # Needed because the integration tests expect Chrome to be installed (e.g cli-hello-world)
      - image: *browsers_docker_image
    # Note: we run Bazel in one of the integration tests, and it can consume >2G
    # of memory. Together with the system under test, this can exhaust the RAM
    # on a 4G worker so we use a larger machine here too.
    resource_class: xlarge
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - attach_workspace:
          at: dist
      - *define_env_vars
      - run: ./integration/run_tests.sh

  # This job updates the content of repos like github.com/angular/core-builds
  # for every green build on angular/angular.
  publish_snapshot:
    <<: *job_defaults
    steps:
      - checkout:
          <<: *post_checkout
      - *define_env_vars
      # See below - ideally this job should not trigger for non-upstream builds.
      # But since it does, we have to check this condition.
      - run:
          name: Skip this job for Pull Requests and Fork builds
          # Note, `|| true` on the end makes this step always exit 0
          command: '[[
              "$CI_PULL_REQUEST" != "false"
              || "$CI_REPO_OWNER" != "angular"
              || "$CI_REPO_NAME" != "angular"
          ]] && circleci step halt || true'
      - attach_workspace:
          at: dist
      # CircleCI has a config setting to force SSH for all github connections
      # This is not compatible with our mechanism of using a Personal Access Token
      # Clear the global setting
      - run: git config --global --unset "url.ssh://git@github.com.insteadof"
      - run:
          name: Decrypt github credentials
          command: 'openssl aes-256-cbc -d -in .circleci/github_token -k "${KEY}" -out ~/.git_credentials'
      - run: ./scripts/ci/publish-build-artifacts.sh

  aio_monitoring:
    <<: *job_defaults
    docker:
      # This job needs Chrome to be globally installed because the tests run with Protractor
      # which does not load the browser through the Bazel webtesting rules.
      - image: *browsers_docker_image
    steps:
      - checkout:
          <<: *post_checkout
      - restore_cache:
          key: *cache_key
      - *define_env_vars
      - run:
          name: Run tests against the deployed apps
          command: ./aio/scripts/test-production.sh $CI_AIO_MIN_PWA_SCORE
      - run:
          name: Notify caretaker about failure
          command: 'curl --request POST --header "Content-Type: application/json" --data "{\"text\":\":x: \`$CIRCLE_JOB\` job failed on build $CIRCLE_BUILD_NUM: $CIRCLE_BUILD_URL :scream:\"}" $CI_SECRET_SLACK_CARETAKER_WEBHOOK_URL'
          when: on_fail

workflows:
  version: 2
  default_workflow:
    jobs:
      - lint
      - test
      - test_ivy_aot
      - build-packages-dist
      - test_aio
      - deploy_aio:
          requires:
            - test_aio
      - test_aio_local:
          requires:
            - build-packages-dist
      - test_aio_tools:
          requires:
            - build-packages-dist
      - test_docs_examples_0:
          requires:
            - build-packages-dist
      - test_docs_examples_1:
          requires:
            - build-packages-dist
      - aio_preview:
          # Only run on PR builds. (There can be no previews for non-PR builds.)
          filters:
            branches:
              only: /pull\/\d+/
      - test_aio_preview:
          requires:
            - aio_preview
      - integration_test:
          requires:
            - build-packages-dist
      - publish_snapshot:
          # Note: no filters on this job because we want it to run for all upstream branches
          # We'd really like to filter out pull requests here, but not yet available:
          # https://discuss.circleci.com/t/workflows-pull-request-filter/14396/4
          # Instead, the job just exits immediately at the first step.
          requires:
            # Only publish if tests and integration tests pass
            - test
            - test_ivy_aot
            - integration_test
            # Only publish if `aio`/`docs` tests using the locally built Angular packages pass
            - test_aio_local
            - test_docs_examples_0
            - test_docs_examples_1
            # Get the artifacts to publish from the build-packages-dist job
            # since the publishing script expects the legacy outputs layout.
            - build-packages-dist

  aio_monitoring:
    jobs:
      - aio_monitoring
    triggers:
      - schedule:
          cron: "0 0 * * *"
          filters:
            branches:
              only:
                - master