.travis.yml

language: node_js

# Override the default Travis behaviour so that rather than trying to run tests
# we instead lint the codebase and try to build the design system
#
# The lint and build tasks are defined in package.json
script:
  # TravisCI is slower than our local machines, so results in intermittent timeouts
  # using the `--runInBand` flag we can force it to without requiring as much
  # resources (https://facebook.github.io/jest/docs/en/troubleshooting.html#tests-are-extremely-slow-on-docker-and-or-continuous-integration-ci-server)
  - npm run build
  - npm test -- --runInBand

sudo: false

env:
  global:
  # CloudFoundry credentials for deployment
  - CF_API="https://api.cloud.service.gov.uk"
  - CF_ORG="govuk-design-system"
  - CF_SPACE="design-system"
  - CF_USERNAME="design-system-deploy+design-system@digital.cabinet-office.gov.uk"
  # CF_PASSWORD
  - secure: "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"

install:
  - npm install --no-optional

# Set up dependencies for deployment:
#
# - The CloudFoundry command line tools
# - The blue-green-deploy plugin for zero downtime push
before_deploy:
  # Add the home directory (where we install CloudFoundry) to our $PATH
  - export PATH=$HOME:$PATH
  # Install CloudFoundry
  - travis_retry curl -L -o $HOME/cf.tgz "https://cli.run.pivotal.io/stable?release=linux64-binary&source=github"
  - tar xzvf $HOME/cf.tgz -C $HOME
  # Install Blue/Green Deploy plugin for zero-downtime-push
  - travis_retry cf install-plugin blue-green-deploy -f -r CF-Community

# Deploy the Design System to production when the master branch is changed (1)
#
# Travis is not involved in deploying PR or branch previews – these are handled
# by Netlify.
#
# We use a script rather than using Travis' built in CloudFoundry provider
# because it does not support zero downtime deploys
# (https://github.com/travis-ci/dpl/pull/610)
deploy:
  provider: script
  script: "./bin/deploy-travis"
  # We build the site as part of the build, so we want to keep it so it can be
  # deployed!
  skip_cleanup: true
  on:
    branch: master # 1

# Notify the developers on the team when:
# - a build was just broken or still is broken (1)
# - a previously broken build is fixed (2)
#
# Unfortunately there is currently no way to filter branches, so we get these
# notifications for any branch (but not for the pull requests themselves)
notifications:
  email:
    recipients:
      - design-system-developers@digital.cabinet-office.gov.uk
    # This is the default behaviour for email notifications, this just makes
    # it explicit
    on_success: change # 1
    on_failure: always # 2