# Affected-test selection for the `affected-tests` merge request label.
# SPDX-FileCopyrightText: The Eigen Authors
# SPDX-License-Identifier: MPL-2.0
#
# Emits the set of tests reachable from the merge request diff, which the
# affected-tier build and test jobs consume.  See scripts/affected_tests.py for
# the selection rules and .agents/ci.md for how the tier fits the CI matrix.

select:tests:
  stage: select
  image: ${EIGEN_CI_IMAGE_LINUX_LINT}
  needs: []
  rules: !reference [.rules:libeigen:affected-tests, rules]
  before_script: !reference [.fetch:diff-base, script]
  script:
    - python3 scripts/test_affected_tests.py
    - python3 scripts/affected_tests.py
        --base-sha "${CI_MERGE_REQUEST_DIFF_BASE_SHA}"
        --output-dir affected
    - echo "Build target selection:" && cat affected/targets.txt
    # A NONE selection compiles nothing, so its build jobs skip downloading the
    # ccache pool: `push` never restores, and nothing is left to push.
    - if [ "$(cat affected/targets.txt)" = "NONE" ]; then policy=push; else policy=pull-push; fi
    - echo "EIGEN_CI_CCACHE_POLICY=${policy}" > affected/ccache.env
  artifacts:
    when: always
    name: "$CI_JOB_NAME_SLUG-$CI_COMMIT_REF_SLUG"
    paths:
      - affected/
    reports:
      dotenv: affected/ccache.env
    expire_in: 2 days
  tags:
    - saas-linux-medium-amd64