trigger:
  stage: trigger
  image: quay.io/curl/curl:latest
  script:
    # Put the private-token with a colon into a variable to escape the "Linefeed-Limbo" (https://stackoverflow.com/a/51187502)
    - PRIVATE_TOKEN="${PRIVATE_TOKEN}:"

    # Get the current datetime (in local time with the TZ variable)
    - CURRENT_DATE="$(date +'%F %T')"

    # Add it to each commit message of the repository (and make sure there is no carriage returns)
    - MESSAGE="${COMMIT_MESSAGE:-$CI_COMMIT_MESSAGE} (${CURRENT_DATE})"
    - MESSAGE=$(echo "${MESSAGE}"|tr -d '\n')

    # Use the Repository submodules API to update the submodule reference in the repository
    - curl
      --data "branch=${BRANCH:-$CI_DEFAULT_BRANCH}&commit_sha=${COMMIT_SHA:-$CI_COMMIT_SHA}&commit_message=${MESSAGE}"
      --header "${PRIVATE_TOKEN} ${GITLAB_TOKEN}"
      --request PUT
      "${CI_SERVER_URL}/api/v4/projects/${PROJECT_ID}/repository/submodules/${SUBMODULE_PATH}"
  rules:
    - changes:
        - post/
  variables:
    PROJECT_ID: '8'
    SUBMODULE_PATH: 'content'
    TZ: ':Europe/Paris'