Flutter Android CircleCI2.0

circle.yml

version: 2
jobs:
  build:
    docker:
      - image: circleci/android:api-27-alpha
    environment:
      - LANG:                   en_US.UTF-8
      - RELEASE_APK_PATH:       build/app/outputs/apk/release
      - RELEASE_APK_NAME:       app-release.apk
      - DEPLOYGATE_USER_NAME:   <DeployGate user name>
      - DEPLOYGATE_API_KEY:     <DeployGate API key>
      - RELEASE_KEY_STORE_ID:   <GoogleDriveFileID>
      - ANDROID_KEYSTORE_ALIAS: <Android app keystore alias name>
      - ANDROID_KEYSTORE_DIR:   ../../
    steps:
      - checkout
      - run:
          name: install gdrive and download release.key
          # https://qiita.com/namakemono/items/c963e75e0af3f7eed732
          command: |
            GDRIVE_FILE_ID=0B3X9GlR6EmbnQ0FtZmJJUXEyRTA
            GDRIVE_FILE_NAME=gdrive
            curl -sc /tmp/cookie "https://drive.google.com/uc?export=download&id=${GDRIVE_FILE_ID}" > /dev/null
            CODE="$(awk '/_warning_/ {print $NF}' /tmp/cookie)"
            curl -Lb /tmp/cookie "https://drive.google.com/uc?export=download&confirm=${CODE}&id=${GDRIVE_FILE_ID}" -o ${GDRIVE_FILE_NAME}
            chmod +x ./gdrive
            ./gdrive --refresh-token ${GDRIVE_REFRESH_TOKEN} download ${RELEASE_KEY_STORE_ID}
      - run:
          name: Install Flutter SDK
          command: git clone -b beta https://github.com/flutter/flutter.git ~/flutter
      - run:
          name: run tests
          command: ~/flutter/bin/flutter test
      - run:
          name: run build dev
          command: |
            ~/flutter/bin/flutter build apk --release
      - store_artifacts:
          path: build/app/outputs/apk/release/app-release.apk
          destination: app-release.apk
      - deploy:
          name: Deploy to deployGate
          command: |
            if [ "${CIRCLE_BRANCH}" == "master" ]; then
              ls -al ${RELEASE_APK_PATH}/${RELEASE_APK_NAME}
              curl -F "file=@${RELEASE_APK_PATH}/${RELEASE_APK_NAME}" \
                   -F "token=${DEPLOYGATE_API_KEY}" \
                   -F "message=TODO:message" \
                   https://deploygate.com/api/users/${DEPLOYGATE_USER_NAME}/apps
            elif [ "${CIRCLE_BRANCH}" == "develop" ]; then
              ls -al ${RELEASE_APK_PATH}/${RELEASE_APK_NAME}
              ./gradlew :app:uploadDeployGateDebug
            fi