# Base configuration for linux builds and tests.
# SPDX-FileCopyrightText: The Eigen Authors
# SPDX-License-Identifier: MPL-2.0

# Shared rule sets, referenced from concrete jobs via
#   rules: !reference [.rules:<name>, rules]
# Centralizing them keeps the "what triggers this job?" decision in one place.
.rules:libeigen:smoketest:
  # Every merge request, except one that opted into a wider tier; see
  # .agents/ci.md.  The namespace guard is load-bearing: neither wider tier has
  # any job outside libeigen, so a fork keeps its smoke coverage whatever it is
  # labelled.  The set below restates these two entries behind a namespace
  # guard rather than nesting a !reference into them; keep the two in step.
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/(affected|all)-tests/"
      when: never
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"

.rules:libeigen:smoketest:upstream-runner:
  # The smoke tier, for jobs pinned to a runner only this project has: the
  # riscv64 tests inherit `tags: [riscv]`, a single self-hosted machine.  A fork
  # that schedules them leaves them pending until the stuck-job timeout drops
  # them: measured at 5563 s, 6475 s and 6786 s queued across two fork merge
  # request pipelines, so its pipeline is neither green nor finished for the
  # better part of two hours.  allow_failure hides the eventual failure but not
  # the wait.  A tag the plan does not offer at all fails fast instead
  # (no_matching_runner, zero queue), which is why only this one needs guarding.
  # Past the first entry the namespace is known, so the rest is
  # .rules:libeigen:smoketest.
  rules:
    - if: $CI_PROJECT_NAMESPACE != "libeigen"
      when: never
    - if: $CI_MERGE_REQUEST_LABELS =~ "/(affected|all)-tests/"
      when: never
    - if: $CI_PIPELINE_SOURCE == "merge_request_event"

# Keeps a GPU-scoped schedule (EIGEN_CI_SCHEDULE_SCOPE=gpu, see .gitlab-ci.yml)
# from running anything but the GPU jobs.  Every rule set that fires on
# "schedule" except .rules:libeigen:gpu opens with it: the job-level lists in
# the build, test and deploy files splice it in as their first entry with
# `- !reference [.rules:libeigen:gpu-schedule-guard, rules]`, while the three
# .rules:libeigen:* sets below restate the two lines, since a !reference inside
# a set that is itself !reference'd would nest.
.rules:libeigen:gpu-schedule-guard:
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule" && $EIGEN_CI_SCHEDULE_SCOPE == "gpu"
      when: never

.rules:libeigen:all-tests:
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule" && $EIGEN_CI_SCHEDULE_SCOPE == "gpu"
      when: never
    - if: $CI_PIPELINE_SOURCE == "schedule" && $CI_PROJECT_NAMESPACE == "libeigen"
    - if: $CI_PIPELINE_SOURCE == "web" && $CI_PROJECT_NAMESPACE == "libeigen"
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/all-tests/"

.rules:libeigen:gpu:
  # Spelled out (rather than referencing .rules:libeigen:all-tests) to avoid
  # a nested !reference, which GitLab CI has had inconsistent support for.
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule" && $CI_PROJECT_NAMESPACE == "libeigen"
    - if: $CI_PIPELINE_SOURCE == "web" && $CI_PROJECT_NAMESPACE == "libeigen"
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/all-tests/"
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/gpu-tests/"
    # No affected-tier configuration enables CUDA, HIP or SYCL, so the GPU test
    # targets exist in none of them: a diff confined to these paths selects
    # targets every affected build reports as unconfigured and a -R regex that
    # matches nothing, and the tier goes green having compiled and run nothing.
    # These jobs close that gap the way ppc64le closes it for AltiVec.  They
    # ignore the selection and build buildtests_gpu, which covers every GPU
    # test rather than the affected subset.
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/GPU/**/*
        # The two scalar headers carry their own device code paths, the .inc
        # files are the CUDA/HIP alias layer, EigenTesting.cmake holds the
        # nvcc/hipcc dispatch, and the harness headers decide what a GPU test
        # can express; a change to any of them is invisible to a host build.
        - Eigen/src/Core/arch/Default/Half.h
        - Eigen/src/Core/arch/Default/BFloat16.h
        - Eigen/src/Core/util/GpuHipCuda*.inc
        - cmake/EigenTesting.cmake
        - test/*.cu
        - test/gpu_common.h
        - test/gpu_test_helper.h
        - test/main.h
        - contrib/Eigen/src/Tensor/*Gpu*.h
        - contrib/test/*.cu
        - contrib/test/GPU/**/*
    # `gpu-tests` is the platform label for GPU and already stands alone above,
    # so it composes with `affected-tests` without another entry.  It is also
    # why `all-platforms` covers no GPU job, and none of the compile-only sets
    # below: that label means "every platform that runs the affected selection",
    # and these jobs ignore the selection to build the whole GPU suite.

.rules:libeigen:affected-tests:
  # Opt-in middle tier between the fixed smoke list and the full `all-tests`
  # matrix: every test the diff can reach, on a small set of platforms.
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"

# The rest of the affected tier is gated on the platform a job targets, by the
# diff or by a label.  Two entries per set rather than one, because GitLab ANDs
# `if:` with `changes:` within an entry and this has to be an OR.  A build job
# and its paired test job share a set: a test job whose build did not run has
# nothing to execute.  See .agents/ci.md for the platform table.
#
# The `*-tests` labels are deliberately unscoped.  GitLab makes scoped labels
# (`backend::NEON`) mutually exclusive, so a scoped axis could never express
# `neon-tests` plus `altivec-tests` -- the union is the point.
.rules:libeigen:affected-tests:sse:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/SSE/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|sse-tests/"

# A wider x86 configuration compiles the narrower backends' headers, so SSE fans
# out to all three x86 sets.  Each set still names its own label, so no set
# depends on another's pattern matching a substring of it.
.rules:libeigen:affected-tests:avx:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/SSE/**/*
        - Eigen/src/Core/arch/AVX/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|sse-tests|avx-tests/"

.rules:libeigen:affected-tests:avx512:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/SSE/**/*
        - Eigen/src/Core/arch/AVX/**/*
        - Eigen/src/Core/arch/AVX512/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|sse-tests|avx-tests|avx512-tests/"

# The AVX512-FP16 headers are excluded unless -mavx512fp16 is active, so the
# AVX512DQ build does not parse them.  No `all-platforms`: these jobs and the
# SME one below compile the whole suite rather than the affected selection, and
# have no paired test job.
.rules:libeigen:affected-tests:avx512fp16:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/AVX512/*FP16*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/avx512-tests/"

.rules:libeigen:affected-tests:neon:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/NEON/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|neon-tests/"

.rules:libeigen:affected-tests:altivec:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/AltiVec/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|altivec-tests/"

.rules:libeigen:affected-tests:lsx:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/LSX/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|lsx-tests/"

.rules:libeigen:affected-tests:rvv10:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/RVV10/**/*
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|rvv-tests/"

# SME builds take the NEON headers, so an SVE-only change must trigger the SVE
# jobs, not these: keep the two backends on separate rules.
.rules:libeigen:affected-tests:sme:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/SME/**/*
        # Backend selection, and the SME-specific product thresholds, live
        # outside arch/ but decide whether either backend is used at all.
        - Eigen/src/Core/util/ConfigureVectorization.h
        - Eigen/src/Core/GeneralProduct.h
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/sme-tests/"

.rules:libeigen:affected-tests:sve:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/"
      changes:
        - Eigen/src/Core/arch/SVE/**/*
        # As for SME: the backend is only reachable through this header.
        - Eigen/src/Core/util/ConfigureVectorization.h
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|sve-tests/"

# No `changes:` entry: what MSVC catches is whole-library (instantiation limits,
# `EIGEN_STRONG_INLINE`, optimizer heap exhaustion), not confined to any subtree
# a diff could name, so there is nothing to key an automatic trigger on.
.rules:libeigen:affected-tests:windows:
  rules:
    - if: $CI_PIPELINE_SOURCE == "merge_request_event" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_MERGE_REQUEST_LABELS =~ "/affected-tests/" && $CI_MERGE_REQUEST_LABELS =~ "/all-platforms|windows-tests/"

# Consumers of the select:tests artifacts, on either platform.  Kept here rather
# than beside the jobs so the artifact contract is spelled once; ci/select.gitlab-ci.yml
# produces these paths.
.affected:build:
  needs: [ select:tests ]
  variables:
    EIGEN_CI_BUILD_TARGET_FILE: affected/targets.txt

.affected:test:
  variables:
    EIGEN_CI_CTEST_REGEX_FILE: affected/ctest_regex.txt

# The smoke tier keeps the shared ccache pool that every other tier scopes per
# merge request (EIGEN_CI_CCACHE_SCOPE, set in the workflow rules; a job
# variable outranks one from a workflow rule, which is what makes this opt-out
# work).  These jobs run on merge request events only, so scoping them would
# leave `<slug>-ccache` with no writer at all: the pool a first build falls
# back to would freeze at whatever wrote it last and rot from there.  Sharing
# it costs little here -- a smoke build is minutes, and its objects are the
# ones most likely to match another merge request's.
.smoketest:build:
  variables:
    EIGEN_CI_CCACHE_SCOPE: ""

.rules:libeigen:scheduled-or-web:
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule" && $EIGEN_CI_SCHEDULE_SCOPE == "gpu"
      when: never
    - if: $CI_PIPELINE_SOURCE == "schedule" && $CI_PROJECT_NAMESPACE == "libeigen"
    - if: $CI_PIPELINE_SOURCE == "web" && $CI_PROJECT_NAMESPACE == "libeigen"

.rules:libeigen:scheduled-or-web:default-branch:
  rules:
    - if: $CI_PIPELINE_SOURCE == "schedule" && $EIGEN_CI_SCHEDULE_SCOPE == "gpu"
      when: never
    - if: $CI_PIPELINE_SOURCE == "schedule" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH
    - if: $CI_PIPELINE_SOURCE == "web" && $CI_PROJECT_NAMESPACE == "libeigen" && $CI_COMMIT_BRANCH == $CI_DEFAULT_BRANCH

.common:linux:cross:
  image: ubuntu:24.04
  variables:
    EIGEN_CI_TARGET_ARCH: ""
    EIGEN_CI_ADDITIONAL_ARGS: ""
    # If host matches target, use the following:
    EIGEN_CI_C_COMPILER: ""
    EIGEN_CI_CXX_COMPILER: ""
    EIGEN_CI_INSTALL: "${EIGEN_CI_C_COMPILER} ${EIGEN_CI_CXX_COMPILER}"
    # If host does not match the target, use the following:
    EIGEN_CI_CROSS_TARGET_TRIPLE: ""
    EIGEN_CI_CROSS_C_COMPILER: ${EIGEN_CI_C_COMPILER}
    EIGEN_CI_CROSS_CXX_COMPILER: ${EIGEN_CI_CXX_COMPILER}
    EIGEN_CI_CROSS_INSTALL: "${EIGEN_CI_CROSS_C_COMPILER} ${EIGEN_CI_CROSS_CXX_COMPILER}"
  before_script:
    # Call script in current shell - it sets up some environment variables.
    - . ci/scripts/common.linux.before_script.sh

# Base configuration for Windows builds and tests.
.common:windows:
  variables:
    EIGEN_CI_MSVC_ARCH: x64
    EIGEN_CI_MSVC_VER: "14.29"
    EIGEN_CI_ADDITIONAL_ARGS: ""
    EIGEN_CI_BEFORE_SCRIPT: ""
  before_script:
     - . ci/scripts/common.windows.before_script.ps1

######## Artifacts #############################################################
# Kept out of the .common:* bases so that publishing is a choice a job makes
# rather than something it inherits.

.artifacts:linux:builddir:
  artifacts:
    when: always
    name: "$CI_JOB_NAME_SLUG-$CI_COMMIT_REF_SLUG"
    paths:
      - ${EIGEN_CI_BUILDDIR}/
    exclude:
      - ${EIGEN_CI_BUILDDIR}/**/*.o
      - ${EIGEN_CI_BUILDDIR}/**/*.a
      - ${EIGEN_CI_BUILDDIR}/**/.ninja_log
      - ${EIGEN_CI_BUILDDIR}/**/.ninja_deps
      - ${EIGEN_CI_BUILDDIR}/**/CMakeFiles/*.dir/**
      - ${EIGEN_CI_BUILDDIR}/.cmake/**
      - ${EIGEN_CI_BUILDDIR}/**/Testing/Temporary/**
    expire_in: 2 days

.artifacts:windows:builddir:
  artifacts:
    when: always
    name: "$CI_JOB_NAME_SLUG-$CI_COMMIT_REF_NAME"
    paths:
      - ${EIGEN_CI_BUILDDIR}/
    exclude:
      - ${EIGEN_CI_BUILDDIR}/**/*.obj
      - ${EIGEN_CI_BUILDDIR}/**/*.lib
      - ${EIGEN_CI_BUILDDIR}/**/.ninja_log
      - ${EIGEN_CI_BUILDDIR}/**/.ninja_deps
      - ${EIGEN_CI_BUILDDIR}/**/CMakeFiles/*.dir/**
      - ${EIGEN_CI_BUILDDIR}/.cmake/**
      - ${EIGEN_CI_BUILDDIR}/**/Testing/Temporary/**
    expire_in: 2 days

# A test job links nothing, and nothing takes its artifact as needs:, so
# re-publishing the build directory it downloaded is pure duplication.
# Testing/ is dropped too: Test.xml embeds every test's stdout under
# --no-compress-output, and the <failure> bodies below carry what matters.
# A week, not two days, because the merge request widget reads this.  Listed
# under both keys on purpose: reports: is what the widget parses, paths: is
# what the job's artifact panel offers for download.
.artifacts:test:results:
  artifacts:
    when: always
    name: "$CI_JOB_NAME_SLUG-$CI_COMMIT_REF_SLUG"
    paths:
      - ${EIGEN_CI_BUILDDIR}/JUnitTestResults_*.xml
    reports:
      junit: ${EIGEN_CI_BUILDDIR}/JUnitTestResults_*.xml
    expire_in: 1 week