cloudbuild.yaml

steps:
  - id: 'restore cache'
    name: 'gcr.io/$PROJECT_ID/restore_cache'
    args:
      - '--bucket=gs://sbt_cache'
      - '--key=build-cache-$( checksum build.sbt )'
    waitFor: ['-']

  - id: 'check cache'
    name: 'ubuntu'
    entrypoint: 'bash'
    args:
      - '-c'
      - |
        ls -lah /workspace/.ivy2/cache | wc -l
    waitFor: ['restore cache']

  - id: 'compile'
    name: 'gcr.io/$PROJECT_ID/scala-sbt'
    args: ['-ivy', '/workspace/.ivy2', 'compile', 'test']
    waitFor: ['restore cache']

  - id: 'check files again'
    name: 'ubuntu'
    entrypoint: 'bash'
    args:
      - '-c'
      - |
        pwd
        ls -lah
    waitFor: ['compile']

  - id: 'save cache'
    name: 'gcr.io/$PROJECT_ID/save_cache'
    args:
      - --bucket=gs://sbt_cache
      - --key=build-cache-$( checksum build.sbt )
      - --path=/workspace/.ivy2/cache
      - --no-clobber
    waitFor: ['compile']