.travis.yml

# Validate with: ruby -ryaml -e 'YAML.load_file ".travis.yml"'

# Generic option gives us Git, Ruby, NodeJS, JVM, i.e. everything we need.
# https://docs.travis-ci.com/user/languages/minimal-and-generic/#generic
language: generic

# Travis CI does not fetch the repository alltogether by default, and we need
# to count commits to evaluate application build number. See also:
# https://github.com/travis-ci/travis-ci/issues/7422.
# TODO(dotdoom): use CI build number instead of commit count.
git:
  depth: false

env:
  global:
    - TERM=dumb
    - PAGER=cat
    - SDK_ROOT="$HOME/sdk"
    - ANDROID_SDK_ROOT="$SDK_ROOT/android"
    # Gradle uses old env: https://issuetracker.google.com/issues/125138969.
    - ANDROID_HOME="$ANDROID_SDK_ROOT"
    - PATH="$SDK_ROOT/flutter/bin:$SDK_ROOT/google-cloud-sdk/bin:$PATH"
    - GRADLE_OPTS="-Dorg.gradle.daemon=false"
    - CLOUDSDK_CORE_DISABLE_PROMPTS=1
    - ANDROID_KEYSTORE_PATH="$HOME/.android/release.keystore"
    # This environment variable is read by Firebase CLI, which uses the same
    # account we use to access GCloud, to deploy Firebase artifacts.
    - GOOGLE_APPLICATION_CREDENTIALS="$HOME/gcloud-service-account.json"
    # This environment variable is read by Fastlane Supply, which uses the same
    # account we use to access GCloud, to upload the app to Play Store.
    - SUPPLY_JSON_KEY="$GOOGLE_APPLICATION_CREDENTIALS"
    # A workaround to hide large dumps of text files, see also
    # https://github.com/flutter/flutter/pull/4989.
    - BOT=false

os: osx

# Starting March 2019, all iOS apps submitted to the App Store must be built
# with the iOS 12.1 SDK or later, included in Xcode 10.1 or later.
osx_image: xcode10.1

branches:
  only:
    - master
    - /^[0-9]+[.][0-9]+[.][0-9]+$/

cache:
  timeout: 500
  directories:
    # Caching a lot of small files is slow because of md5 calculation of each:
    # https://github.com/travis-ci/travis-ci/issues/9009. Cache selectively.
    - $HOME/.gradle/caches/
    - $HOME/.gradle/wrapper/
    - $ANDROID_SDK_ROOT
    - $SDK_ROOT/flutter

# When one of the steps in the install fails, the build stops immediately and is
# marked as errored.
install:
  - tools/ci.sh

  # Install and build flutter (may be cached)
  - flutter upgrade || git clone --depth=2 --branch=beta
    https://github.com/flutter/flutter.git "${SDK_ROOT?}/flutter"
  - flutter precache
  - flutter --version

  - bundle --version
  # TODO(dotdoom): make it bundle install --deployment.
  - bundle install

  # TODO(dotdoom): file bug: Travis ignores node_js and .nvmrc for generic lang.
  # Firebase requires Node version > 8.
  - nvm install 8
  - nvm alias default 8

  - node --version
  - npm --version
  - ( cd firebase && npm install --no-save )
  - ( cd firebase/functions && npm install --no-save )
  - ( cd firebase/www && ../node_modules/.bin/bower --allow-root install )

  # TODO(dotdoom): this step is very slow and should not even be necessary.
  - pod setup

# When one of the build commands returns a non-zero exit code, the Travis CI
# build runs the subsequent commands as well, and accumulates the build result.
script:
  - ( cd flutter && bundle exec fastlane build )

  - ( cd flutter && flutter test --coverage )
  - bash <(curl -s https://codecov.io/bash)

  - npm --prefix firebase run build
  - npm --prefix firebase/functions run lint
  - npm --prefix firebase/functions run build
  - ( cd firebase/www && ../node_modules/.bin/polymer lint )

  - bundle exec fastlane ensure_clean_git

  - |
    if [[ "$TRAVIS_PULL_REQUEST" == "false" ]]; then
      echo 'Building a tag or a branch. Deploy Firebase to debug,'
      echo 'publish to Play Store (internal track).'

      # Install and configure gcloud
      # Since the script is too noisy printing "tar -xv", we drop stderr.
      curl -sSL https://sdk.cloud.google.com | \
        bash -s -- --disable-prompts --install-dir="${SDK_ROOT?}" >/dev/null \
        2>&1
      # This is needed only for iOS to fetch Fastlane match keys repository.
      git config --global \
        credential.https://source.developers.google.com.helper \
        gcloud.sh
      gcloud version

      echo "${GCLOUD_SERVICE_ACCOUNT_DATA?}" > \
        "${GOOGLE_APPLICATION_CREDENTIALS?}"
      gcloud auth activate-service-account \
        --key-file "${GOOGLE_APPLICATION_CREDENTIALS?}"
      gsutil cp gs://dasfoo-keystore/delern.jks "${ANDROID_KEYSTORE_PATH?}"

      bundle exec fastlane ensure_clean_git &&
        PROJECT=delern-debug npm --prefix firebase run deploy &&
        PROJECT=delern-e1b33 npm --prefix firebase run deploy &&
        ( cd flutter && bundle exec fastlane android publish ) &&

        if [ -n "$TRAVIS_TAG" ]; then
          echo 'Building a tag. Upload to TestFlight.'
          ( cd flutter && bundle exec fastlane ios publish )
        elif [[ "$TRAVIS_BRANCH" == "master" ]]; then
          echo 'Building "master" branch. Build debug version, sign. Do not'
          echo 'upload to TestFlight (review process is too slow, besides,'
          echo 'version number format will look like a.b.c-N-gCOMMIT, which is'
          echo 'not accepted by Apple Store).'

          ( cd flutter && bundle exec fastlane ios build )
        else
          echo 'Unexpected condition for triggering the build!' >&2
          false
        fi
    else
      echo 'Building a PR. No access to keys. Build debug version w/o signing.'
      ( cd flutter && bundle exec fastlane android build ) &&
        # TODO(dotdoom): write proper lane for fastlane.
        ( cd flutter && flutter build ios --debug --no-codesign ) &&
        bundle exec fastlane ensure_clean_git
    fi

before_cache:
  - |
    # Delete volatile files:
    # https://docs.travis-ci.com/user/languages/java/#projects-using-gradle
    rm -f  $HOME/.gradle/caches/modules-2/modules-2.lock
    rm -f  $HOME/.gradle/caches/*/javaCompile/javaCompile.lock
    rm -fr $HOME/.gradle/caches/journal-1/
    rm -fr $HOME/.gradle/caches/transforms-1/
    rm -fr $HOME/.gradle/caches/*/plugin-resolution/
    rm -fr $HOME/.gradle/caches/*/fileHashes/
    rm -fr $HOME/.gradle/caches/*/scripts-remapped/