.travis.yml

stages:
- name: test
  if: type = pull_request AND branch = master
- name: tag
  if: type = push AND branch = master AND tag IS blank
- name: deploy
  if: type = push AND branch = master

jobs:
  include:
  # Run Flutter tests
  - stage: test
    name: flutter
    language: dart
    addons:
      apt:
        sources:
        # To get correct version of libstdc++6
        - ubuntu-toolchain-r-test
    packages:
    - libstdc++6
    - fonts-droid
    before_script:
    # Install Flutter
    - git clone https://github.com/flutter/flutter.git -b stable
    - export PATH=`pwd`/flutter/bin:`pwd`/flutter/bin/cache/dart-sdk/bin:$PATH
    - flutter doctor
    script:
    - cd app
    - flutter test

  # Tag commit with version
  - stage: tag
    name: tag
    language: minimal
    before_script:
    # Calculate tag from previous
    - export LAST_TRAVIS_TAG=$(git describe --abbrev=0 --tags)
    - export TRAVIS_TAG=$((LAST_TRAVIS_TAG + 1))
    # Decrypt secrets file
    - openssl aes-256-cbc -K $encrypted_f6bf0014723e_key -iv $encrypted_f6bf0014723e_iv -in secrets.tar.enc -out secrets.tar -d
    - tar xvf secrets.tar
    # Set up SSH key for GitHub
    - ssh-add github_deploy_key
    script:
    # Push tag to remote
    - git tag $TRAVIS_TAG
    - git push git@github.com:${TRAVIS_REPO_SLUG}.git $TRAVIS_BRANCH --tags

  # Build and deploy APK for Android
  - stage: deploy
    name: android
    language: android
    jdk: openjdk8
    android:
      components:
      - build-tools-28.0.3
      - android-28
      - android-27
    addons:
      # Deploy APK to S3 bucket
      artifacts:
        s3_region: eu-west-1
        working_dir: build/app/outputs/apk/release
        paths:
        - app-release.apk
        target_paths:
        - /
      apt:
        sources:
        # To get correct version of libstdc++6
        - ubuntu-toolchain-r-test
    packages:
    - libstdc++6
    - fonts-droid
    before_script:
    # Install Flutter
    - git clone https://github.com/flutter/flutter.git -b stable
    - export PATH=`pwd`/flutter/bin:`pwd`/flutter/bin/cache/dart-sdk/bin:$PATH
    - flutter doctor
    # Decrypt secrets file
    - openssl aes-256-cbc -K $encrypted_f6bf0014723e_key -iv $encrypted_f6bf0014723e_iv -in secrets.tar.enc -out secrets.tar -d
    - tar xvf secrets.tar
    # Install Fastlane dependencies
    - cd app && gem install bundler && cd android && bundle install && cd ../..
    # Confirm that there is a tag set
    - export TRAVIS_TAG=$(git tag --points-at HEAD)
    - "[ -n \"$TRAVIS_TAG\" ] && echo $TRAVIS_TAG"
    script:
    # Package app for Android using tag
    - cd app
    - flutter packages get
    - flutter build apk --release --build-number=$TRAVIS_TAG
    # Deploy APK to Play Store using Fastlane
    - cd android && bundle exec fastlane android alpha
    # Go back to root app directory so S3 finds the APK
    - cd ..