# Read more about this feature here: https://docs.gitlab.com/ee/user/application_security/secret_detection
#
# Configure the scanning tool through the environment variables.
# List of the variables: https://docs.gitlab.com/ee/user/application_security/secret_detection/#available-variables
# How to set: https://docs.gitlab.com/ee/ci/yaml/#variables

variables:
  SECURE_ANALYZERS_PREFIX: "registry.gitlab.com/gitlab-org/security-products/analyzers"
  SECRETS_ANALYZER_VERSION: "3"
  SECRET_DETECTION_EXCLUDED_PATHS: ""

.secret-analyzer:
  stage: test
  image: "$SECURE_ANALYZERS_PREFIX/secrets:$SECRETS_ANALYZER_VERSION"
  services: []
  allow_failure: true
  variables:
    GIT_DEPTH: "50"
  # `rules` must be overridden explicitly by each child job
  # see https://gitlab.com/gitlab-org/gitlab/-/issues/218444
  artifacts:
    reports:
      secret_detection: gl-secret-detection-report.json

secret_detection:
  extends: .secret-analyzer
  rules:
    - if: $SECRET_DETECTION_DISABLED
      when: never
    - if: $CI_COMMIT_BRANCH
  script:
    - if [ -n "$CI_COMMIT_TAG" ]; then echo "Skipping Secret Detection for tags. No code changes have occurred."; exit 0; fi
    - if [ "$CI_COMMIT_BRANCH" = "$CI_DEFAULT_BRANCH" ]; then echo "Running Secret Detection on default branch."; /analyzer run; exit 0; fi
    - |
      git fetch origin $CI_DEFAULT_BRANCH $CI_COMMIT_REF_NAME
      git log --left-right --cherry-pick --pretty=format:"%H" refs/remotes/origin/${CI_DEFAULT_BRANCH}..refs/remotes/origin/${CI_COMMIT_REF_NAME} >${CI_COMMIT_SHA}_commit_list.txt
      if [[ $(wc -l <${CI_COMMIT_SHA}_commit_list.txt) -eq "0" ]]; then
        # if git log produces 0 or 1 commits we should scan $CI_COMMIT_SHA only
        export SECRET_DETECTION_COMMITS=$CI_COMMIT_SHA
      else
        # +1 because busybox wc only counts \n and there is no trailing \n
        echo "scanning $(($(wc -l <${CI_COMMIT_SHA}_commit_list.txt) + 1)) commits"
        export SECRET_DETECTION_COMMITS_FILE=${CI_COMMIT_SHA}_commit_list.txt
      fi
    - /analyzer run
    - rm "$CI_COMMIT_SHA"_commit_list.txt