.drone.yml

# -----------------------------------------------------------------------------
# SETTINGS
# -----------------------------------------------------------------------------

# Drone matrix: Additional ENV vars for substitution - http://docs.drone.io/matrix-builds/
# Will be evaluated BEFORE the YAML is parsed, ONLY strings allowed, NO substitutions ${XXX} here.

matrix:
  include:
    - BUILD_ENV: all

# YAML Configuration anchors - https://learnxinyminutes.com/docs/yaml/
# Will be evaluated WHILE the YAML is parsed, any valid yaml allowed, substitutions ${XXX} allowed.

alias:

  # ENV variables for executing yarn:test (typically only the DB connector is relevant)
  - &TEST_ENV
    CI: ${CI}
    PGHOST: &PGHOST database
    PGUSER: &PGUSER postgres
    PGPASSWORD: &PGPASSWORD test
    PGDATABASE: &PGDATABASE test

  # Which build events should trigger the main pipeline (defaults to all)
  - &BUILD_EVENTS [push, pull_request, tag]

  # Pipeline merge helper: only execute if build event received
  - &WHEN_BUILD_EVENT
    when:
      event: *BUILD_EVENTS

# The actual pipeline building our product
pipeline:

  # ---------------------------------------------------------------------------
  # BUILD Monorepo
  # ---------------------------------------------------------------------------

  "docker build":
    group: build-monorepo
    image: docker:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    commands:
      - "docker build --compress -t ${DRONE_REPO,,}-monorepo ."
    <<: *WHEN_BUILD_EVENT

  "bootstrap":
    group: bootstrap
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - node -v
      - npm -v
      - yarn --version
      - yarn bootstrap
    <<: *WHEN_BUILD_EVENT

  "build":
    group: pre-check
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - yarn tsc
      - yarn tsc-sync
    <<: *WHEN_BUILD_EVENT

  "database connection":
    group: pre-check
    image: postgres:alpine
    commands:
      # wait for postgres service to become available
      - |
        until psql -U $PGUSER -d $PGDATABASE -h database \
         -c "SELECT 1;" >/dev/null 2>&1; do sleep 1; done
      # query the database
      - |
        psql -U $PGUSER -d $PGDATABASE -h database \
          -c "SELECT name, setting FROM pg_settings;"
    environment: *TEST_ENV
    <<: *WHEN_BUILD_EVENT

  # ---------------------------------------------------------------------------
  # CHECK Monorepo
  # ---------------------------------------------------------------------------

  # "npm audit":
  #   group: check-monorepo
  #   image: ${DRONE_REPO,,}-monorepo
  #   commands:
  #     - "synp --source-file yarn.lock" # setup a package-lock.json
  #     - "npm audit --registry=https://registry.npmjs.org || true" # run audit with lock from above
  #   environment: *TEST_ENV
  #   <<: *WHEN_BUILD_EVENT

  # "yarn audit":
  #   group: check-monorepo
  #   image: ${DRONE_REPO,,}-monorepo
  #   commands:
  #     # "yarn audit" currently fails with 503 on monorepos
  #     # see https://github.com/yarnpkg/yarn/issues/7025
  #     - "yarn audit --registry=https://registry.npmjs.org || true" # run audit with lock from above
  #   environment: *TEST_ENV
  #   <<: *WHEN_BUILD_EVENT

  "test":
    group: check-monorepo
    image: ${DRONE_REPO,,}-monorepo
    commands:
      # use _test to prevent concurrent rimraf and cabgen copy execution
      - yarn _test
      - yarn _coverage:summary
    environment: *TEST_ENV
    <<: *WHEN_BUILD_EVENT

  "lint":
    group: check-monorepo
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - yarn lint
    <<: *WHEN_BUILD_EVENT

  "check-package-validity":
    group: check-monorepo
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - yarn check-package-validity && git status
      # error out if our git is no longer clean!
      - git diff --exit-code
    <<: *WHEN_BUILD_EVENT

  "create-aaa-backend":
    group: check-monorepo
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - cd packages/create-aaa-backend
      - yarn create-aaa-backend-local-monorepo
      # don't reuse the monorepos node_modules
      # fully reinstall from the current latest.
      - rm -rf aaa-backend/node_modules
    <<: *WHEN_BUILD_EVENT

  # ---------------------------------------------------------------------------
  # LERNA
  # ---------------------------------------------------------------------------

  "lerna updated":
    group: post-check
    image: ${DRONE_REPO,,}-monorepo
    commands:
      - lerna updated
    <<: *WHEN_BUILD_EVENT

  # ---------------------------------------------------------------------------
  # BUILD scaffolded project
  # ---------------------------------------------------------------------------

  "docker build (scaffolded template)":
    group: post-check
    image: docker:latest
    volumes:
      - /var/run/docker.sock:/var/run/docker.sock
    commands:
      - "cd packages/create-aaa-backend/aaa-backend"
      - "docker build --compress -t ${DRONE_REPO,,}-template:${DRONE_COMMIT_SHA} ."

  # ---------------------------------------------------------------------------
  # CHECK scaffolded project
  # ---------------------------------------------------------------------------

  "test (scaffolded template)":
    group: check-template
    image: "${DRONE_REPO,,}-template:${DRONE_COMMIT_SHA}"
    commands:
      - cd /app
      - yarn test:nocheck
      - yarn coverage:summary
    environment: *TEST_ENV

  "lint (scaffolded template)":
    group: check-template
    image: "${DRONE_REPO,,}-template:${DRONE_COMMIT_SHA}"
    commands:
      - cd /app
      - yarn lint

# Long living services where the startup order does not matter (otherwise use detach: true)
services:

  # ---------------------------------------------------------------------------
  # SERVICES
  # ---------------------------------------------------------------------------

  "env":
    image: alpine
    commands:
      - "env | sort"

  "database":
    image: postgres:alpine
    environment:
      POSTGRES_USER: *PGUSER
      POSTGRES_PASSWORD: *PGPASSWORD
      POSTGRES_DB: *PGDATABASE
    # Apply some performance improvements to pg as these guarantees are not needed while running integration tests
    command: "-c 'shared_buffers=128MB' -c 'fsync=off' -c 'synchronous_commit=off' -c 'full_page_writes=off' -c 'max_connections=100' -c 'client_min_messages=warning'"
    <<: *WHEN_BUILD_EVENT