config.yml

cache_version_keys: &cache_version_keys
  CACHE_VERSION_OF_PROJECT_DEPS: v2
  CACHE_VERSION_OF_DANGER_CACHE: v1

cache_keys:
  gradle_cache:
    primary: &primary_key_of_gradle_cache gradle-cache-{{ checksum "~/CACHE_VERSION_OF_PROJECT_DEPS" }}}-{{ checksum "~/project_hash.txt" }}
    keys: &all_keys_of_gradle_cache
      - *primary_key_of_gradle_cache
      - gradle-cache-{{ checksum "~/CACHE_VERSION_OF_PROJECT_DEPS" }}-
  danger_cache:
    primary: &primary_key_of_danger_cache danger-cache-{{ checksum "~/CACHE_VERSION_OF_DANGER_CACHE" }}-{{ checksum "~/danger_cache" }}
    keys: &all_keys_of_danger_cache
      - *primary_key_of_danger_cache
      - danger-cache-{{ checksum "~/CACHE_VERSION_OF_DANGER_CACHE" }}-

docker_env:
  android_defaults: &android_defaults
    working_directory: ~/conference-app-2019
    docker:
      - image: circleci/android:api-28-alpha
    environment:
      <<: *cache_version_keys
      GRADLE_OPTS: '-Dorg.gradle.jvmargs="-Xmx2048m -XX:MaxPermSize=512m -XX:+HeapDumpOnOutOfMemoryError" -Dorg.gradle.daemon=false'

  go_defaults: &go_defaults
    working_directory: ~/conference-app-2019
    docker:
      - image: jmatsu/dpg:v0.3.0

shared_build_steps:
  - run: &init_bash
      name: Source the bash source
      command: |
        echo "export REPOSITORY_ROOT=$(git rev-parse --show-toplevel)" >> $BASH_ENV
        echo "source $CIRCLE_WORKING_DIRECTORY/scripts/bash.source" >> $BASH_ENV
        source $BASH_ENV
        init_ci_stuff
  - run: &download_dpg
      name: Download a binary file of dpg
      command: |
        cd $(eval echo $CIRCLE_WORKING_DIRECTORY)/scripts
        curl -sL "https://raw.githubusercontent.com/jmatsu/dpg/master/install.bash" | bash
        dpg -v

version: 2
jobs:
  assemble_apk:
    <<: *android_defaults
    steps:
      - checkout
      - run: *init_bash
      - restore_cache: &restore_gradle_cache
          keys: *all_keys_of_gradle_cache
      - run: &download_all_dependencies
          name: Download Dependencies
          command: retry_command ./gradlew androidDependenciesExtra getDependencies
      - save_cache: &save_gradle_cache
          paths:
            - ~/.android
            - ~/.gradle
            - .gradle
          key: *primary_key_of_gradle_cache
      - run:
          name: Assemble apk
          command: |
            ./gradlew clean assembleDebug --offline
      - store_artifacts:
          path: frontend/android/build/outputs/apk
      - run: *download_dpg
      - run:
          name: Upload an apk and create a distribution by app-manage procedure.
          command: |
            apk_path=$(find frontend/android/build/outputs/apk -name "*.apk" | head -1)
            dpg procedure app-manage on-feature-branch --app "$apk_path" --android | parse_dg_response
      - restore_cache: &restore_danger_cache
          keys: *all_keys_of_danger_cache
      - run: &bundle_install_for_danger
          name: Bundle install for Danger
          command: |
            cd scripts/danger
            bundle check || bundle install --clean
          when: always
      - save_cache: &save_danger_cache
          paths:
            - ./scripts/danger/vendor/bundle
          key: *primary_key_of_danger_cache
      - run:
          name: Compare apks with the latest production apk
          command: |
            if download_latest_apk "$PWD/latest.apk"; then
              # find first
              export BUILT_APK_FILE_PATH="$PWD/$(find frontend/android/build/outputs/apk -name "*.apk" | head -1)"
              export OLD_BUILT_APK_FILE_PATH="$PWD/latest.apk"

              if [[ -f "$BUILT_APK_FILE_PATH" ]] && [[ -f "$OLD_BUILT_APK_FILE_PATH" ]]; then
                danger_compare_apks
              else
                echo "Cannot find apks" 1>&2
              fi
            fi
  vital_check:
    <<: *android_defaults
    steps:
      - checkout
      - run: *init_bash
      - restore_cache: *restore_gradle_cache
      - run: *download_all_dependencies
      - save_cache: *save_gradle_cache
      - run: ./gradlew testDebugUnitTest lintDebug ktlint --continue --offline
      - run:
          name: Merge junit report files
          command: |
            merge_all_junit_files
            cp "$MERGED_JUNIT_RESULT_FILE" build/all-junit.xml
          when: always
      - store_test_results:
          path: build/all-junit.xml
          when: always
      - restore_cache: *restore_danger_cache
      - run: *bundle_install_for_danger
      - run:
          name: Report lint results else
          command: danger_assertions
          when: always
      - save_cache: *save_danger_cache

  destroy_distribution:
    <<: *go_defaults
    steps:
      - checkout
      - run:
          name: Destroy the associated distribution by app-manage procedure.
          command: |
            ./scripts/destroy_distribution
  placeholder:
    <<: *go_defaults
    steps:
      - run: echo Hello
workflows_filter:
  only_production_ready: &only_production_ready
    filters:
      branches:
        only: /release/
  except_production_ready: &except_production_ready
    filters:
      branches:
        ignore: /release/

workflows:
  version: 2
  staging_or_feature:
    jobs:
      - assemble_apk: *except_production_ready
      - vital_check: *except_production_ready
      - destroy_distribution:
          filters:
            branches:
              only: /master/
  production_ready:
    jobs:
      - placeholder: *only_production_ready