cloudbuild.yaml

steps:
  # backup previous files to backup storage bucket
  - name: gcr.io/cloud-builders/gsutil
    args: [
        "-m", # accelerate upload by processing multiple files
        "rsync", # using rsync framework
        "-r",
        "-c", # avoids reupload unchanged files
        "-d",
        "gs://hybus-timetable", # source directory
        "gs://hybus-timetable-backup", # target directory
      ]

  # copy new files from git source to cloud storage bucket
  - name: gcr.io/cloud-builders/gsutil
    args:
      [
        "-m",
        "rsync",
        "-r",
        "-c",
        "-d",
        "./timetable",
        "gs://hybus-timetable/timetable",
      ]